Hydrogen hydrate composite hydrogen storage layer and preparation method and preparation system thereof

Abstract

The invention relates to a hydrogen hydrate composite hydrogen storage layer as well as a preparation method and a preparation system thereof, and relates to the technical field of composite hydrogen storage. The preparation method comprises the following steps: spontaneously filling a hydrogen hydrate interlayer between a tank body outer layer and a tank body inner layer to generate a hydrogen-tetrahydrofuran hydrate; arranging a tank body corresponding to a hydrogen hydrate interlayer for generating the hydrogen-tetrahydrofuran hydrate in an ultralow-temperature environment corresponding to a second set temperature, and maintaining the ultralow-temperature environment for a first set time; and after the first set time, the second set temperature is adjusted to be larger than the first set temperature corresponding to the second set temperature, the second set time is maintained, and the hydrogen hydrate composite hydrogen storage layer is prepared. According to the embodiment of the invention, the preparation of the hydrogen hydrate composite hydrogen storage layer can be realized.

Description

Technical Field

[0001] The present disclosure relates to the technical field of composite hydrogen storage, and in particular to a hydrogen hydrate composite hydrogen storage layer and a preparation method and a preparation system thereof. Background Art

[0002] As the demand for energy grows, non-renewable energy such as fossil fuels is facing the risk of depletion, and the impact of fossil fuels on the environment cannot be ignored. Hydrogen energy has thus attracted people's attention. At present, the research on hydrogen energy is mainly divided into three aspects: hydrogen production, hydrogen storage and hydrogen application. Among them, hydrogen storage is generally divided into gaseous hydrogen storage, liquid hydrogen storage, solid hydrogen storage, etc.

[0003] Gaseous hydrogen storage is usually stored and transported in the form of hydrogen storage tanks. However, the service life of mainstream hydrogen storage tanks in my country today is relatively low. The reason is that long-term storage of high-pressure hydrogen in the tank can easily cause hydrogen embrittlement of the tank metal.

[0004] At present, in order to extend the service life of hydrogen storage tanks and reduce the hydrogen embrittlement effect, the existing technology usually adds an anti-hydrogen embrittlement layer made of carbon fiber woven layer in the hydrogen storage tank, and physically isolates the contact between hydrogen and the metal of the hydrogen storage tank body, thereby reducing the hydrogen embrittlement effect and extending the service life of the hydrogen storage bottle.

[0005] The existing technology has at least the following technical defects: 1. The carbon fiber molded product is more sensitive to temperature and stress changes, has poor shape stability, and the carbon fiber processing method is complicated. Domestic processing methods are immature, and a single hydrogen storage bottle needs to use multiple layers of carbon fiber to ensure resistance to hydrogen embrittlement, which is extremely costly. 2. There are gaps of varying degrees between the metal atoms of the hydrogen storage tank body, and the hydrogen molecule is extremely small. Once it comes into contact with the tank body, it is easy to enter the larger gaps between the metal atoms, thereby accelerating the occurrence of hydrogen embrittlement in the tank body. Summary of the invention

[0006] The present disclosure proposes a hydrogen hydrate composite hydrogen storage layer and a technical solution for its preparation method and preparation system.

[0007] According to one aspect of the present disclosure, a method for preparing a hydrogen hydrate composite hydrogen storage layer is provided, comprising: The hydrogen hydrate interlayer between the outer layer of the tank and the inner layer of the tank is spontaneously filled to generate hydrogen-tetrahydrofuran hydrate; placing a tank corresponding to the hydrogen hydrate interlayer for generating the hydrogen-tetrahydrofuran hydrate in an ultra-low temperature environment corresponding to a second set temperature, and maintaining the tank for a first set time; After the first set time, the second set temperature is adjusted to be greater than the first set temperature corresponding to the second set temperature, and maintained for the second set time to prepare a hydrogen hydrate composite hydrogen storage layer.

[0008] Preferably, the method for spontaneously filling the hydrogen hydrate interlayer between the outer layer of the tank body and the inner layer of the tank body to generate hydrogen-tetrahydrofuran hydrate comprises: filling the hydrogen hydrate interlayer between the outer layer of the tank body and the inner layer of the tank body with a tetrahydrofuran aqueous solution to a set spatial volume corresponding to the hydrogen hydrate interlayer; filling the hydrogen hydrate interlayer containing or having the tetrahydrofuran aqueous solution with hydrogen of a set pressure; setting the tank body corresponding to the hydrogen hydrate interlayer filled with the hydrogen and the tetrahydrofuran aqueous solution at a first set temperature to generate hydrogen-tetrahydrofuran hydrate.

[0009] Preferably, the tank body corresponding to the hydrogen hydrate interlayer filled with the hydrogen and the tetrahydrofuran aqueous solution is set at a first set temperature, and the tank body is shaken / vibrated during the process of generating hydrogen-tetrahydrofuran hydrate.

[0010] Preferably, the set spatial volume is configured to be 40-60% of the corresponding spatial volume of the hydrogen hydrate interlayer; and / or the set pressure is configured to be 15-30 MPa.

[0011] Preferably, the set spatial volume is configured to be 50% of the spatial volume corresponding to the hydrogen hydrate interlayer; and / or, the set pressure is configured to be 20 MPa.

[0012] Preferably, the method for preparing the hydrogen hydrate composite hydrogen storage layer also includes: when storing hydrogen in the tank body or hydrogen storage tank, maintaining the temperature corresponding to the hydrogen storage environment of the tank body or hydrogen storage tank at the first set temperature; at the first set temperature, adding tetrahydrofuran aqueous solution into the inner layer of the tank body, and after the porous medium layer provided in the inner layer of the tank body is soaked, discharging the remaining tetrahydrofuran aqueous solution from the inner layer of the tank body.

[0013] Preferably, after adding the tetrahydrofuran aqueous solution into the inner layer of the tank body, the tank body is shaken / vibrated.

[0014] Preferably, the first set temperature is configured to a temperature corresponding to a non-ultra-low temperature environment; and / or, the set mole fraction corresponding to the tetrahydrofuran aqueous solution is configured to an arbitrary value between 1-10%; and / or, the second set temperature is configured to an arbitrary value between -200°C and 400°C; and / or, the first set temperature is configured to an arbitrary value between -10°C and 30°C; and / or, the first set time is configured to an arbitrary value between 10-24 hours; and / or, the second set time is configured to an arbitrary value between 2-10 hours.

[0015] Preferably, the set molar fraction corresponding to the tetrahydrofuran aqueous solution is configured to be 5.56%; and / or, the second set temperature is configured to be -200°C; and / or, the first set temperature is configured to be 1°C; and / or, the first set time is configured to be 24 hours; and / or, the second set time is configured to be 5 hours.

[0016] According to one aspect of the present disclosure, a preparation device / system for a hydrogen hydrate composite hydrogen storage layer is provided, comprising: The outer layer of the tank, the inner layer of the tank, and the hydrogen hydrate interlayer formed between the outer layer of the tank and the inner layer of the tank; The first preparation unit is used to spontaneously fill the hydrogen hydrate interlayer between the outer layer of the tank body and the inner layer of the tank body to generate hydrogen-tetrahydrofuran hydrate; A second preparation unit is used to place a tank corresponding to the hydrogen hydrate interlayer for generating the hydrogen-tetrahydrofuran hydrate in an ultra-low temperature environment corresponding to a second set temperature, and maintain it for a first set time; The third preparation unit is used to adjust the second set temperature to a first set temperature greater than the second set temperature corresponding to the second set temperature after the first set time, and maintain the temperature for the second set time to prepare a hydrogen hydrate composite hydrogen storage layer.

[0017] , the first preparation unit comprises: an interlayer inlet pipe and an interlayer outlet pipe connected to the hydrogen hydrate interlayer, and a generation unit; The interlayer inlet pipe is used to fill the hydrogen hydrate interlayer between the outer layer of the tank body and the inner layer of the tank body with tetrahydrofuran aqueous solution to a set space volume corresponding to the hydrogen hydrate interlayer; when the tetrahydrofuran aqueous solution is filled to the set space volume corresponding to the hydrogen hydrate interlayer, the interlayer inlet pipe is closed; The interlayer inlet pipe is also used to fill the hydrogen hydrate interlayer containing or having the tetrahydrofuran aqueous solution with hydrogen of a set pressure; The generating unit is used to set the tank corresponding to the hydrogen hydrate interlayer filled with the hydrogen and the tetrahydrofuran aqueous solution at a first set temperature to generate hydrogen-tetrahydrofuran hydrate; The interlayer outlet pipe is used to remove the remaining hydrogen and tetrahydrofuran aqueous solution in the hydrogen hydrate interlayer from the hydrogen hydrate interlayer after the hydrogen-tetrahydrofuran hydrate is generated.

[0018] Preferably, the hydrogen-tetrahydrofuran hydrate is used to form a dense protective layer containing hydrogen hydrate on the surface of the hydrogen hydrate interlayer to prevent leakage of hydrogen molecules.

[0019] Preferably, it also includes: a first shaking / vibration unit, which is used to set the tank body corresponding to the hydrogen hydrate interlayer filled with the hydrogen and the tetrahydrofuran aqueous solution at the first set temperature, and shake / vibrate the tank body during the process of generating hydrogen-tetrahydrofuran hydrate; wherein, before shaking / vibrating the tank body, the interlayer inlet pipe and the interlayer outlet pipe are closed.

[0020] Preferably, the set spatial volume is configured to be 40-60% of the spatial volume corresponding to the hydrogen hydrate interlayer; and / or the set pressure is configured to be 15-30MPa; wherein the set spatial volume is configured to be 50% of the spatial volume corresponding to the hydrogen hydrate interlayer; and / or the set pressure is configured to be 20MPa.

[0021] Preferably, the preparation system of the hydrogen hydrate composite hydrogen storage layer also includes: a hydrogen storage outlet pipe and a hydrogen storage inlet connected to the inner layer of the tank body; the hydrogen storage inlet is used to maintain the temperature corresponding to the hydrogen storage environment of the tank body or the hydrogen storage tank at the first set temperature when the tank body or the hydrogen storage tank is storing hydrogen; at the first set temperature, a tetrahydrofuran aqueous solution is added to the inner layer of the tank body; the hydrogen storage outlet pipe is used to discharge the remaining tetrahydrofuran aqueous solution from the inner layer of the tank body after the porous medium layer provided in the inner layer of the tank body is soaked.

[0022] Preferably, it also includes: a second shaking / vibration unit; the second shaking / vibration unit is used to shake / vibrate the tank body after adding tetrahydrofuran aqueous solution into the inner layer of the tank body; wherein, before shaking / vibrating the tank body, the hydrogen storage outlet pipe and the hydrogen storage inlet are closed.

[0023] Preferably, the first set temperature is configured to a temperature corresponding to a non-ultra-low temperature environment; and / or, the set mole fraction corresponding to the tetrahydrofuran aqueous solution is configured to an arbitrary value between 1-10%; and / or, the second set temperature is configured to an arbitrary value between -200°C and 400°C; and / or, the first set temperature is configured to an arbitrary value between -10°C and 30°C; and / or, the first set time is configured to an arbitrary value between 10-24 hours; and / or, the second set time is configured to an arbitrary value between 2-10 hours.

[0024] Preferably, the set molar fraction corresponding to the tetrahydrofuran aqueous solution is configured to be 5.56%; and / or, the second set temperature is configured to be -200°C; and / or, the first set temperature is configured to be 1°C; and / or, the first set time is configured to be 24 hours; and / or, the second set time is configured to be 5 hours.

[0025] Preferably, the system for preparing the hydrogen hydrate composite hydrogen storage layer further comprises: a support structure is provided between the inner layer of the tank body and the outer layer of the tank body.

[0026] Preferably, the support structure is placed in the gap between the upper and lower circular heads of the inner layer of the tank body and the outer layer of the tank body to support the inner layer of the tank body to remain stable and ensure the stability of the hydrogen hydrate interlayer between the inner layer of the tank body and the outer layer of the tank body.

[0027] Preferably, the tank body is provided with a pressure gauge connecting pipe for installing a pressure gauge and a safety valve connecting pipe for installing a safety valve.

[0028] According to one aspect of the present disclosure, a device / system for preparing a hydrogen hydrate composite hydrogen storage layer is provided, comprising: a processor; a memory for storing instructions executable by the processor; wherein the processor is configured to call the instructions stored in the memory to execute the above-mentioned method for preparing the hydrogen hydrate composite hydrogen storage layer.

[0029] According to one aspect of the present disclosure, a device / system for preparing a hydrogen hydrate composite hydrogen storage layer is provided, comprising: a computer-readable storage medium having computer program instructions stored thereon, wherein the computer program instructions implement the above-mentioned method for preparing the hydrogen hydrate composite hydrogen storage layer when executed by a processor.

[0030] According to one aspect of the present disclosure, a device / system for preparing a hydrogen hydrate composite hydrogen storage layer and a computer program product are provided. The computer program product is provided with a computer program / instruction, and is characterized in that the computer program / instruction implements the above-mentioned method for preparing the hydrogen hydrate composite hydrogen storage layer when executed by a processor.

[0031] According to one aspect of the present disclosure, an electronic device is provided, comprising: a processor; and a memory for storing instructions executable by the processor; wherein the processor is configured to: execute the above-mentioned method for preparing the hydrogen hydrate composite hydrogen storage layer.

[0032] According to one aspect of the present disclosure, a computer-readable storage medium is provided, on which computer program instructions are stored, and when the computer program instructions are executed by a processor, the method for preparing the above-mentioned hydrogen hydrate composite hydrogen storage layer is implemented.

[0033] According to one aspect of the present disclosure, there is provided a hydrogen hydrate composite hydrogen storage layer, which is prepared by applying or utilizing the above-mentioned method for preparing the hydrogen hydrate composite hydrogen storage layer; and / or, is prepared by applying or utilizing the preparation system for the hydrogen hydrate composite hydrogen storage layer as described in any one of claims 4 to 9.

[0034] According to one aspect of the present disclosure, a hydrogen hydrate composite hydrogen storage layer is provided, characterized in that it is prepared by applying or utilizing the above-mentioned preparation system for the hydrogen hydrate composite hydrogen storage layer.

[0035] According to one aspect of the present disclosure, there is provided a hydrogen hydrate composite hydrogen storage layer, characterized in that it is prepared by applying or utilizing the preparation method of the hydrogen hydrate composite hydrogen storage layer as described above; and it is prepared by applying or utilizing the preparation system of the hydrogen hydrate composite hydrogen storage layer as described above.

[0036] In the embodiments of the present disclosure, the present disclosure proposes a technical solution of a hydrogen hydrate composite hydrogen storage layer and a preparation method and a preparation system thereof to solve at least one technical problem of the existing hydrogen storage bottles being extremely high in cost and prone to hydrogen embrittlement effect.

[0037] It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.

[0038] Further features and aspects of the present disclosure will become apparent from the following detailed description of exemplary embodiments with reference to the attached drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] The drawings herein are incorporated into the specification and constitute a part of the specification. These drawings illustrate embodiments consistent with the present disclosure and are used to illustrate the technical solutions of the present disclosure together with the specification.

[0040] Figure 1 A flow chart showing a method for preparing a hydrogen hydrate composite hydrogen storage layer according to an embodiment of the present disclosure; Figure 2 A schematic structural diagram corresponding to a device / system for preparing a hydrogen hydrate composite hydrogen storage layer according to an embodiment of the present disclosure is shown; Figure 3 A schematic diagram showing the structure of a tank body or a hydrogen storage tank according to an embodiment of the present disclosure; Figure 4 An enlarged view of the local structure corresponding to the preparation device / system of the hydrogen hydrate composite hydrogen storage layer according to an embodiment of the present disclosure is shown; Figure 5 is a block diagram of an electronic device 800 according to an exemplary embodiment; Figure 6 is a block diagram of an electronic device 1900 according to an exemplary embodiment.

[0041] Among them, 1-tank body outer layer; 2-hydrogen hydrate interlayer; 3-tank body inner layer; 4-porous medium layer; 5-hydrogen storage outlet pipe; 6-hydrogen storage inlet pipe; 7-tank body support; 8-support structure; 9-pressure gauge pipe; 10-interlayer inlet pipe; 11-interlayer outlet pipe; 12-safety valve pipe; 13-membrane device; 14-hydrogen storage tank. DETAILED DESCRIPTION

[0042] Various exemplary embodiments, features and aspects of the present disclosure will be described in detail below with reference to the accompanying drawings. The same reference numerals in the accompanying drawings represent elements with the same or similar functions. Although various aspects of the embodiments are shown in the accompanying drawings, the drawings are not necessarily drawn to scale unless otherwise specified.

[0043] The word “exemplary” is used exclusively herein to mean “serving as an example, example, or illustration.” Any embodiment described herein as “exemplary” is not necessarily to be construed as preferred or advantageous over other embodiments.

[0044] The term "and / or" herein is only a description of the association relationship of the associated objects, indicating that there may be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the term "at least one" herein represents any combination of at least two of any one or more of a plurality of. For example, including at least one of A, B, and C can represent including any one or more elements selected from the set consisting of A, B, and C.

[0045] In addition, in order to better illustrate the present disclosure, numerous specific details are given in the following specific embodiments. It should be understood by those skilled in the art that the present disclosure can also be implemented without certain specific details. In some examples, methods, means, components and circuits well known to those skilled in the art are not described in detail in order to highlight the subject matter of the present disclosure.

[0046] It can be understood that the above-mentioned various method embodiments mentioned in the present disclosure can be combined with each other to form a combined embodiment without violating the principle logic. Due to space limitations, the present disclosure will not go into details.

[0047] In addition, the present disclosure also provides a preparation device / system for a hydrogen hydrate composite hydrogen storage layer, an electronic device, a computer-readable storage medium, and a program, all of which can be used to implement any preparation method for a hydrogen hydrate composite hydrogen storage layer provided by the present disclosure. The corresponding technical scheme and description refer to the corresponding records in the preparation method of the hydrogen hydrate composite hydrogen storage layer section, which will not be repeated here.

[0048] Figure 1 A flow chart showing a method for preparing a hydrogen hydrate composite hydrogen storage layer according to an embodiment of the present disclosure. Figure 2A schematic structural diagram corresponding to a device / system for preparing a hydrogen hydrate composite hydrogen storage layer according to an embodiment of the present disclosure is shown; Figure 3 A schematic diagram showing the structure of a tank body or a hydrogen storage tank according to an embodiment of the present disclosure; Figure 4 An enlarged view of the local structure corresponding to the preparation device / system of the hydrogen hydrate composite hydrogen storage layer according to an embodiment of the present disclosure is shown.

[0049] like Figures 1 to 4 As shown, the preparation method of the hydrogen hydrate composite hydrogen storage layer includes: step S101: spontaneously filling the hydrogen hydrate interlayer 2 between the outer layer 1 of the tank body and the inner layer 3 of the tank body to generate hydrogen-tetrahydrofuran hydrate; step S102: setting the tank body corresponding to the hydrogen hydrate interlayer 2 generating the hydrogen-tetrahydrofuran hydrate in an ultra-low temperature environment corresponding to a second set temperature, and maintaining the first set time; step S103: after the first set time, adjusting the second set temperature to a first set temperature greater than the second set temperature corresponding to the first set temperature, and maintaining the second set time, to prepare the hydrogen hydrate composite hydrogen storage layer. At least one technical problem of the existing hydrogen storage bottle being extremely high in cost and prone to hydrogen embrittlement effect is solved.

[0050] In an embodiment of the present disclosure, the method for spontaneously filling the hydrogen hydrate interlayer 2 between the outer layer 1 of the tank body and the inner layer 3 of the tank body to generate hydrogen-tetrahydrofuran hydrate comprises: filling the hydrogen hydrate interlayer 2 between the outer layer 1 of the tank body and the inner layer 3 of the tank body with a tetrahydrofuran aqueous solution to a set spatial volume corresponding to the hydrogen hydrate interlayer 2; filling the hydrogen hydrate interlayer 2 containing or having the tetrahydrofuran aqueous solution with hydrogen of a set pressure; setting the tank body corresponding to the hydrogen hydrate interlayer 2 filled with the hydrogen and the tetrahydrofuran aqueous solution at a first set temperature to generate hydrogen-tetrahydrofuran hydrate.

[0051] In an embodiment of the present disclosure, the tank body corresponding to the hydrogen hydrate interlayer 2 filled with the hydrogen and the tetrahydrofuran aqueous solution is set at a first set temperature, and the tank body is shaken / vibrated during the process of generating hydrogen-tetrahydrofuran hydrate.

[0052] In the embodiment of the present disclosure, the set spatial volume is configured to be any value between 40-60% of the corresponding spatial volume of the hydrogen hydrate interlayer 2; and the set pressure is configured to be any value between 15-30 MPa.

[0053] In an embodiment of the present disclosure, further, the set spatial volume is configured to be 50% of the corresponding spatial volume of the hydrogen hydrate interlayer 2; and the set pressure is configured to be 20 MPa.

[0054] In the embodiments of the present disclosure and other possible embodiments, those skilled in the art may configure the numerical values ​​corresponding to the set space volume and the set pressure according to actual needs.

[0055] In an embodiment of the present disclosure, the method for preparing the hydrogen hydrate composite hydrogen storage layer also includes: when storing hydrogen in the tank body or the hydrogen storage tank 14, maintaining the temperature corresponding to the hydrogen storage environment of the tank body or the hydrogen storage tank 14 at the first set temperature; at the first set temperature, adding a tetrahydrofuran aqueous solution to the inner layer 3 of the tank body, and after the porous medium layer 4 provided in the inner layer 3 of the tank body is soaked, discharging the remaining tetrahydrofuran aqueous solution from the inner layer 3 of the tank body.

[0056] In the embodiment of the present disclosure, after adding the tetrahydrofuran aqueous solution into the inner layer 3 of the tank body, the tank body is shaken / vibrated.

[0057] In an embodiment of the present disclosure, the first set temperature is configured as a temperature corresponding to a non-ultra-low temperature environment. The set mole fraction corresponding to the tetrahydrofuran aqueous solution is configured as any value between 1-10%; the second set temperature is configured as any value between -200°C and 400°C; the first set temperature is configured as any value between -10°C and 30°C; the first set time is configured as any value between 10-24 hours; and / or the second set time is configured as any value between 2-10 hours.

[0058] In an embodiment of the present disclosure, further, wherein the set molar fraction corresponding to the tetrahydrofuran aqueous solution is configured to be 5.56%; the second set temperature is configured to be -200°C; the first set temperature is configured to be 1°C; the first set time is configured to be 24 hours; and the second set time is configured to be 5 hours.

[0059] In the embodiments of the present disclosure and other possible embodiments, those skilled in the art can configure the values ​​corresponding to the first set temperature or the temperature corresponding to the non-ultra-low temperature environment, the set mole fraction corresponding to the tetrahydrofuran aqueous solution, the second set temperature, the first set temperature, the first set time, and the second set time according to actual needs.

[0060] In the following embodiments, the following parameters are further described: the set spatial volume is configured to be 50% of the spatial volume corresponding to the hydrogen hydrate interlayer 2; the set pressure is configured to be 20 MPa; the set mole fraction corresponding to the tetrahydrofuran aqueous solution is configured to be 5.56%; the second set temperature is configured to be -200°C; the first set temperature is configured to be 1°C; the first set time is configured to be 24 hours; and the second set time is configured to be 5 hours.

[0061] In the embodiments of the present disclosure and other possible embodiments, the hydrogen hydrate composite hydrogen storage layer (composite hydrogen storage interlayer) includes: a tank body outer layer 1, a hydrogen hydrate interlayer 2, and a tank body inner layer 3; wherein a porous medium layer 4 is attached to the inner wall of the tank body inner layer 3, and the hydrogen hydrate interlayer 2 is placed between the tank body outer layer 1 and the tank body inner layer 3. The tank body inner layer 3 is provided with a hydrogen storage inlet pipe 6 and a hydrogen storage outlet pipe 5; the hydrogen storage inlet pipe 6 and the hydrogen storage outlet pipe 5 pass through the porous medium layer 4 and the gap between the hydrogen hydrate interlayer 2 and the tank body outer layer 1. The hydrogen storage inlet pipe 6 is used to fill hydrogen into the tank body for hydrogen storage, and the hydrogen storage outlet pipe 5 discharges the stored hydrogen.

[0062] Among them, in the embodiment of the present disclosure and other possible embodiments, the hydrogen hydrate interlayer 2 is provided with an interlayer inlet pipe 10 and an interlayer outlet pipe 11, and the interlayer inlet pipe 10 and the interlayer outlet pipe 11 pass through the outer layer 1 of the tank body without contacting the inner layer 3 of the tank body, and are connected to the external hydrogen transmission device. Among them, the interlayer inlet pipe 10 is used to fill the hydrogen hydrate interlayer 2 with tetrahydrofuran aqueous solution and hydrogen to generate hydrogen-tetrahydrofuran hydrate, and provide a dense protective layer containing hydrogen hydrate, which can effectively prevent the leakage of hydrogen molecules; wherein, the interlayer outlet pipe 11 is used to discharge the tetrahydrofuran aqueous solution and hydrogen.

[0063] Among them, in the embodiment of the present disclosure and other possible embodiments, the hydrogen storage inlet pipe 6, hydrogen storage outlet pipe 5, interlayer inlet pipe 10 and interlayer outlet pipe 11 are all gas-liquid dual-purpose pipes and are equipped with safety valves.

[0064] Furthermore, a pressure gauge connecting pipe 9 for installing a pressure gauge and a safety valve connecting pipe 12 for installing a safety valve are provided on the tank body.

[0065] In the embodiments of the present disclosure and other possible embodiments, a support structure 8 is arranged between the inner layer 3 of the tank body and the outer layer 1 of the tank body, and the pressures borne by the inner layer 3 of the tank body and the outer layer 1 of the tank body are processed according to the gaseous or liquid hydrogen storage conditions. The support structure 8 is placed in the gap between the upper and lower circular heads of the inner layer 3 of the tank body and the outer layer 1 of the tank body to support the inner layer 3 of the tank body to remain stable and ensure the stability of the hydrogen hydrate interlayer 2 between the inner layer 3 of the tank body and the outer layer 1 of the tank body.

[0066] In the embodiments of the present disclosure and other possible embodiments, the porous medium layer 4 may be made of carbon-based materials, organic porous hydrogen storage materials, metal materials, etc. The outer layer 1 of the tank body and the inner layer 3 of the tank body may be made of high-strength steel or carbon fiber materials. After the porous medium of the porous medium layer 4 is soaked in tetrahydrofuran aqueous solution, when the inner layer 3 of the tank body is filled with hydrogen, hydrogen can be adsorbed to form a hydrate protective layer to prevent hydrogen from overflowing, and to increase the hydrogen storage density, forming a composite hydrogen storage with the hydrogen stored in the tank.

[0067] In the embodiments of the present disclosure and other possible embodiments, the hydrogen hydrate interlayer 2 must be spontaneously filled with hydrogen hydrates before the tank body stores hydrogen. The filling process is as follows: fill the tetrahydrofuran aqueous solution through the interlayer inlet pipe 10 to ensure that the volume of the tetrahydrofuran aqueous solution is half of the volume of the hydrogen hydrate interlayer 2 space, and then fill the hydrogen with a set pressure of 20MPa into the hydrogen hydrate interlayer 2, and place the tank body consisting of the tank outer layer 1, the hydrogen hydrate interlayer 2, and the tank inner layer 3 into a cold storage with a first set temperature of 1°C, and shake the tank body appropriately, and close the interlayer inlet pipe 10 and the interlayer outlet pipe 11 to ensure that sufficient hydrogen-tetrahydrofuran hydrate is generated in the hydrogen hydrate interlayer to completely fill the entire hydrogen hydrate interlayer 2. Among them, the tank body is properly shaken because the tetrahydrofuran aqueous solution needs to vibrate when it absorbs hydrogen to form hydrogen hydrates, which is equivalent to helping hydrogen dissolve into the solution, increasing the contact area, and accelerating the generation rate of hydrogen hydrates.

[0068] Among them, in the embodiments of the present disclosure and other possible embodiments, the tank body and the hydrogen storage tank may have the same meaning.

[0069] In the embodiment of the present disclosure and other possible embodiments, the hydrogen hydrate interlayer 2, the outer layer 1 of the tank body and the inner layer 3 of the tank body need to be cryogenically treated before the tank body stores hydrogen. The treatment process is as follows: the entire tank body is placed in an ultra-low temperature environment of a second set temperature of -200°C, and maintained for a first set time of about 24 hours. The ultra-low temperature environment can be provided by liquid nitrogen or other methods.

[0070] In the embodiments of the present disclosure and other possible embodiments, the deep cryogenic technology treatment performed on the outer layer 1 of the tank body and the inner layer 3 of the tank body in the ultra-low temperature environment corresponding to the second set temperature can withstand higher pressure while improving the resistance to hydrogen embrittlement effect, making its material stability more significant and preventing hydrogen leakage.

[0071] In the embodiments of the present disclosure and other possible embodiments, the hydrogen-tetrahydrofuran hydrate in the hydrogen hydrate interlayer 2 needs to ensure that there is a sufficient hydrogen source in the interlayer during the cryogenic treatment, so as to ensure that more hydrogen molecules are filled in the cage structure of the hydrogen-tetrahydrofuran hydrate during the cryogenic treatment. The hydrogen molecules in the cage structure will stably exist in the cage structure, and while ensuring the structural stability, the hydrogen passage rate of the hydrogen-tetrahydrofuran hydrate is reduced, so that the hydrogen hydrate interlayer 2 plays a function of protecting hydrogen from escaping.

[0072] In the embodiments of the present disclosure and other possible embodiments, after the hydrogen hydrate interlayer 2 is cryogenically treated and taken out of the ultra-low temperature environment corresponding to the second set temperature, it is placed in a cold storage at the first set temperature of 1°C for a second set time of more than 5 hours, and then the hydrogen storage tank 14 can store hydrogen, and the hydrogen storage environment of the hydrogen storage tank 14 is the first set temperature of 1°C.

[0073] Furthermore, in the embodiment of the present disclosure and other possible embodiments, the valve of the hydrogen storage inlet 6 is opened, an appropriate amount of tetrahydrofuran aqueous solution is added and the tank body is fully shaken so that the porous medium layer 4 is fully soaked, and then the valve of the hydrogen storage outlet pipe 5 is opened to discharge the excess tetrahydrofuran aqueous solution.

[0074] In the embodiment of the present disclosure and other possible embodiments, the set molar fraction of the tetrahydrofuran (THF) aqueous solution is configured to be 5.56%. The hydrogen gas filled in the hydrogen storage tank 14 can be in liquid or gaseous state.

[0075] In the embodiments of the present disclosure and other possible embodiments, the tetrahydrofuran aqueous solution is filled into the hydrogen hydrate interlayer by opening the interlayer inlet pipe valve, and the filling is stopped when the aqueous solution occupies half the volume of the hydrogen hydrate interlayer, and then the hydrogen with a set pressure of 20MPa is continuously filled into the interlayer, and the interlayer inlet pipe valve is closed; the hydrogen storage tank is placed in a cold storage with a first set temperature of 1°C and the tank body is properly shaken until the hydrogen-tetrahydrofuran hydrate completely fills the hydrogen hydrate interlayer; then, the tank body is placed in an ultra-low temperature environment with a second set temperature of -200°C by liquid nitrogen to perform a deep cryogenic treatment on the tank metal, and at the same time, the interlayer inlet pipe is connected to the hydrogen source to perform a deep cryogenic treatment on the hydrogen-tetrahydrofuran hydrate in the hydrogen hydrate interlayer; after the deep cryogenic treatment is completed, the interlayer inlet pipe valve is closed, and after standing in the cold storage with the first set temperature of 1°C for a second set time of more than 5 hours, the hydrogen storage operation is performed in the cold storage.

[0076] In the embodiments of the present disclosure and other possible embodiments, first open the valve of the hydrogen storage inlet pipe, add an appropriate amount of tetrahydrofuran aqueous solution into the inner layer of the tank body, and fully shake the hydrogen storage tank, and then pour out the excess aqueous solution from the hydrogen storage outlet pipe. After wiping off the residual aqueous solution in the hydrogen storage inlet and outlet pipes, close the valve of the hydrogen storage outlet pipe, connect the hydrogen storage inlet pipe to the gas source and start inputting hydrogen. When the air pressure in the hydrogen storage tank reaches the rated pressure, the hydrogen storage inlet pipe valve can be closed to complete the hydrogen storage operation. For the hydrogen release operation, a thin film device 13 must be installed in front of the hydrogen storage outlet pipe and the interlayer outlet pipe, and then the valves of both pipes must be opened to release hydrogen.

[0077] The execution subject of the method for preparing a hydrogen hydrate composite hydrogen storage layer may be an image processing device, for example, the method for preparing a hydrogen hydrate composite hydrogen storage layer may be executed by a terminal device or a server or other processing device, wherein the terminal device may be a user equipment (UE), a mobile device, a user terminal, a terminal, a cellular phone, a cordless phone, a personal digital assistant (PDA), a handheld device, a computing device, a vehicle-mounted device, a wearable device, etc. In some possible implementations, the method for preparing a hydrogen hydrate composite hydrogen storage layer may be implemented by a processor calling a computer-readable instruction stored in a memory.

[0078] Those skilled in the art will understand that in the above-mentioned method for preparing the hydrogen hydrate composite hydrogen storage layer in the specific implementation mode, the writing order of each step does not mean a strict execution order and does not constitute any limitation on the implementation process. The specific execution order of each step should be determined by its function and possible internal logic.

[0079] Figure 2 A schematic structural diagram corresponding to a device / system for preparing a hydrogen hydrate composite hydrogen storage layer according to an embodiment of the present disclosure is shown; Figure 3 A schematic diagram showing the structure of a tank body or a hydrogen storage tank according to an embodiment of the present disclosure; Figure 4 The following is an enlarged view of the local structure of the preparation device / system of the hydrogen hydrate composite hydrogen storage layer according to the embodiment of the present disclosure. Figures 2 to 4As shown, the preparation device / system of the hydrogen hydrate composite hydrogen storage layer includes: a tank outer layer 1, a tank inner layer 3 and a hydrogen hydrate interlayer 2 formed between the tank outer layer 1 and the tank inner layer 3; a first preparation unit, used to spontaneously fill the hydrogen hydrate interlayer 2 between the tank outer layer 1 and the tank inner layer 3 to generate hydrogen-tetrahydrofuran hydrate; a second preparation unit, used to set the tank body corresponding to the hydrogen hydrate interlayer 2 for generating the hydrogen-tetrahydrofuran hydrate in an ultra-low temperature environment corresponding to a second set temperature, and maintain it for a first set time; a third preparation unit, used to adjust the second set temperature to a first set temperature greater than the second set temperature corresponding to the first set temperature after the first set time, and maintain it for the second set time to prepare the hydrogen hydrate composite hydrogen storage layer.

[0080] In an embodiment of the present disclosure, the first preparation unit comprises: an interlayer inlet pipe 10 and an interlayer outlet pipe 11 connected to the hydrogen hydrate interlayer 2, and a generation unit; the interlayer inlet pipe 10 is used to fill the hydrogen hydrate interlayer 2 between the outer layer 1 of the tank body and the inner layer 3 of the tank body with tetrahydrofuran aqueous solution to a set space volume corresponding to the hydrogen hydrate interlayer 2; when the tetrahydrofuran aqueous solution is filled to the set space volume corresponding to the hydrogen hydrate interlayer 2, the interlayer inlet pipe 10 is closed; the interlayer inlet pipe 11 is used to fill the hydrogen hydrate interlayer 2 between the outer layer 1 of the tank body and the inner layer 3 of the tank body with tetrahydrofuran aqueous solution to a set space volume corresponding to the hydrogen hydrate interlayer 2; The outlet pipe 10 is also used to fill the hydrogen with a set pressure into the hydrogen hydrate interlayer 2 containing or having the tetrahydrofuran aqueous solution; the generation unit is used to set the tank body corresponding to the hydrogen hydrate interlayer 2 filled with the hydrogen and the tetrahydrofuran aqueous solution at a first set temperature to generate hydrogen-tetrahydrofuran hydrate; the interlayer outlet pipe 11 is used to remove the remaining hydrogen and tetrahydrofuran aqueous solution in the hydrogen hydrate interlayer 2 from the hydrogen hydrate interlayer 2 after the hydrogen-tetrahydrofuran hydrate is generated.

[0081] Among them, in the embodiment of the present disclosure, the hydrogen-tetrahydrofuran hydrate is used to form a dense protective layer containing hydrogen hydrate on the surface of the hydrogen hydrate interlayer 2 to prevent the leakage of hydrogen molecules.

[0082] In an embodiment of the present disclosure, the preparation device / system of the hydrogen hydrate composite hydrogen storage layer also includes: a first shaking / vibration unit, which is used to set the tank body corresponding to the hydrogen hydrate interlayer 2 filled with the hydrogen and the tetrahydrofuran aqueous solution at the first set temperature, and shake / vibrate the tank body during the process of generating hydrogen-tetrahydrofuran hydrate; wherein, before shaking / vibrating the tank body, the interlayer inlet pipe 10 and the interlayer outlet pipe 11 are closed.

[0083] Among them, in the embodiment of the present disclosure, the set spatial volume is configured to be 40-60% of the corresponding spatial volume of the hydrogen hydrate interlayer 2; and the set pressure is configured to be 15-30MPa.

[0084] Among them, in the embodiment of the present disclosure, further, the set spatial volume is configured to be 50% of the corresponding spatial volume of the hydrogen hydrate interlayer 2; and the set pressure is configured to be 20 MPa.

[0085] Likewise, in the embodiments of the present disclosure and other possible embodiments, those skilled in the art may configure the numerical values ​​corresponding to the set space volume and the set pressure according to actual needs.

[0086] In an embodiment of the present disclosure, the preparation system of the hydrogen hydrate composite hydrogen storage layer also includes: a hydrogen storage outlet pipe 5 and a hydrogen storage inlet 6 connected to the inner layer 3 of the tank body; the hydrogen storage inlet 6 is used to maintain the temperature corresponding to the hydrogen storage environment of the tank body or the hydrogen storage tank 14 at the first set temperature when the tank body or the hydrogen storage tank 14 stores hydrogen; at the first set temperature, a tetrahydrofuran aqueous solution is added to the inner layer 3 of the tank body; the hydrogen storage outlet pipe 5 is used to discharge the remaining tetrahydrofuran aqueous solution from the inner layer 3 of the tank body after the porous medium layer 4 set in the inner layer 3 of the tank body is soaked.

[0087] In an embodiment of the present disclosure, the preparation system of the hydrogen hydrate composite hydrogen storage layer also includes: a second shaking / vibration unit; the second shaking / vibration unit is used to shake / vibrate the tank body after adding tetrahydrofuran aqueous solution into the inner layer 3 of the tank body; wherein, before shaking / vibrating the tank body, the hydrogen storage outlet pipe 5 and the hydrogen storage inlet 6 are closed.

[0088] Among them, in an embodiment of the present disclosure, the first set temperature is configured to a temperature corresponding to a non-ultra-low temperature environment; and / or the set mole fraction corresponding to the tetrahydrofuran aqueous solution is configured to an arbitrary value between 1-10%; the second set temperature is configured to an arbitrary value between -200°C and 400°C; the first set temperature is configured to an arbitrary value between -10°C and 30°C; the first set time is configured to an arbitrary value between 10-24 hours; the second set time is configured to an arbitrary value between 2-10 hours.

[0089] Among them, in the embodiments of the present disclosure, further, the set molar fraction corresponding to the tetrahydrofuran aqueous solution is configured to be 5.56%; the second set temperature is configured to be -200°C; the first set temperature is configured to be 1°C; the first set time is configured to be 24 hours; and the second set time is configured to be 5 hours.

[0090] Similarly, in the embodiments of the present disclosure and other possible embodiments, those skilled in the art can configure the values ​​corresponding to the first set temperature or the temperature corresponding to the non-ultra-low temperature environment, the set mole fraction corresponding to the tetrahydrofuran aqueous solution, the second set temperature, the first set temperature, the first set time, and the second set time according to actual needs.

[0091] In an embodiment of the present disclosure, the system for preparing the hydrogen hydrate composite hydrogen storage layer further includes: a support structure 8 is provided between the inner layer 3 of the tank body and the outer layer 1 of the tank body.

[0092] In the embodiment of the present disclosure, the support structure 8 is placed in the gap between the upper and lower circular heads of the inner layer 3 of the tank body and the outer layer 1 of the tank body, supporting the inner layer 3 of the tank body to remain stable and ensuring the stability of the hydrogen hydrate interlayer 2 between the inner layer 3 of the tank body and the outer layer 1 of the tank body.

[0093] In the embodiment of the present disclosure, a pressure gauge connecting pipe 9 for installing a pressure gauge and a safety valve connecting pipe 12 for installing a safety valve are provided on the tank body.

[0094] Similarly, in the following embodiments, the following set parameters are further explained: the set spatial volume is configured to be 50% of the spatial volume corresponding to the hydrogen hydrate interlayer 2; the set pressure is configured to be 20 MPa; the set mole fraction corresponding to the tetrahydrofuran aqueous solution is configured to be 5.56%; the second set temperature is configured to be -200°C; the first set temperature is configured to be 1°C; the first set time is configured to be 24 hours; and the second set time is configured to be 5 hours.

[0095] In the embodiment of the present disclosure and other possible embodiments, the inner wall of the inner layer 3 of the tank body is subjected to surface pretreatment to remove impurities such as the metal surface oxide layer, and then an adhesion layer is sprayed on the metal surface and annealing treatment is performed to improve the bonding degree of the bonding layer, and finally electroplating is performed to tightly bond the porous medium layer 4 to the inner wall of the inner layer 3 of the tank body.

[0096] In the embodiment of the present disclosure and other possible embodiments, the inner layer 3 of the tank body is connected to the spherical head of corresponding size by welding. The inner layer 3 of the tank body is placed inside the outer layer 1 of the tank body and is supported and kept stable by six evenly distributed square arc support structures 8 fixed on the upper and lower head arc surfaces of the outer layer 1 of the tank body and having the same curvature radius as the head.

[0097] In the embodiment of the present disclosure and other possible embodiments, the inner layer 3 of the tank body is opened at the center of the bottom, the hydrogen storage outlet pipe 5 is fixed by welding, and a hole is opened at a position parallel to the hydrogen storage outlet pipe 5, and the hydrogen storage inlet pipe 6 is fixed by welding.

[0098] In the embodiment of the present disclosure and other possible embodiments, the hydrogen hydrate interlayer 2 contains a tetrahydrofuran aqueous solution with a set molar fraction (5.56%).

[0099] In the embodiment of the present disclosure and other possible embodiments, a hole is opened at the top center of the outer layer 1 of the tank body, the interlayer outlet pipe 11 is fixed by welding, and a hole is opened at a position parallel to the interlayer outlet pipe 11, and the inlet pipe 10 is fixed by welding.

[0100] In the embodiments of the present disclosure and other possible embodiments, the hydrogen outlet pipe 5 penetrates the wall thickness of the outer layer 1 of the tank body and connects to the inner layer 3 of the tank body, and the hydrogen inlet pipe 6 completely penetrates the outer layer 1 of the tank body and penetrates the inner layer 3 of the tank body by a certain set distance. The former is used to discharge hydrogen to the outside of the tank, and the latter is connected to the gas source to fill hydrogen into the tank.

[0101] In the embodiment of the present disclosure and other possible embodiments, the interlayer outlet pipe 11 and the interlayer inlet pipe 10 are connected to the outer layer 1 of the tank body, connecting the gap between the inner layer 3 of the hydrogen tank body and the outer layer 1 of the tank body. The former is used to discharge tetrahydrofuran aqueous solution and hydrogen to the outside, and the latter is used to fill the hydrogen hydrate interlayer 2 with aqueous solution and hydrogen.

[0102] In the embodiment of the present disclosure and other possible embodiments, a safety valve connecting pipe 12 is provided on the outer layer 1 of the tank body and connected to the safety valve for relieving pressure in case of overpressure to ensure the safety of the container.

[0103] In the embodiment of the present disclosure and other possible embodiments, a pressure gauge connection pipe 9 is provided on the outer layer 1 of the tank body to be connected to a pressure gauge for measuring the storage pressure in the inner layer 3 of the tank body.

[0104] In the embodiment of the present disclosure and other possible embodiments, the metal used in the hydrogen storage tank 14 is subjected to cryogenic treatment, which can withstand higher pressures while improving the resistance to hydrogen embrittlement, making the material more stable and preventing hydrogen leakage. In the embodiment of the present disclosure and other possible embodiments, a water-blocking and breathable membrane device 13 is designed to connect the hydrogen storage outlet pipe 5 and the sandwich outlet pipe 11 when releasing hydrogen to ensure the purity of the output hydrogen.

[0105] In the embodiment of the present disclosure and other possible embodiments, three evenly distributed tank supports 7 are welded to the bottom of the hydrogen storage tank 14 to support the hydrogen storage tank 14 and keep it upright.

[0106] In the embodiments of the present disclosure and other possible embodiments, the valve of the interlayer inlet pipe 10 connected to the hydrogen hydrate interlayer 2 is opened, and the tetrahydrofuran aqueous solution is started to be filled into the hydrogen hydrate interlayer 2 through the interlayer inlet pipe 10. When the aqueous solution occupies half of the volume of the hydrogen hydrate interlayer 2, the aqueous solution is stopped, and then hydrogen is filled to a set pressure of 20MPa, and the valve of the interlayer inlet pipe 10 is closed. The hydrogen storage tank 14 is placed in a cold storage with a first set temperature of 1°C and shaken appropriately until the hydrogen-tetrahydrofuran hydrate completely fills the hydrogen hydrate interlayer. Subsequently, the hydrogen storage tank 14 is placed in an ultra-low temperature environment with a second set temperature of -200°C by liquid nitrogen to perform deep cold treatment on the tank metal, so that the atomic arrangement of the metal of the tank outer layer 1 and the tank inner layer 3 is more compact, which can withstand higher pressures while improving the anti-hydrogen embrittlement effect, making its material stability more significant and preventing hydrogen leakage. At the same time, the interlayer inlet pipe 10 is connected to the hydrogen source to perform cryogenic treatment on the hydrogen-tetrahydrofuran hydrate in the hydrogen hydrate interlayer 2. During the cryogenic treatment, more hydrogen molecules are filled in the cage structure of the hydrogen-tetrahydrofuran hydrate, and the hydrogen molecules in the cage structure will stably exist in the cage structure, which ensures the structural stability while reducing the hydrogen passing rate of the hydrogen-tetrahydrofuran hydrate, so that the hydrogen hydrate interlayer 2 plays a role in preventing hydrogen from escaping.

[0107] In the embodiments of the present disclosure and other possible embodiments, after the hydrogen hydrate interlayer 2 is cryogenically treated and taken out of the ultra-low temperature environment, it is placed in a cold storage at a first set temperature of 1°C for a second set time of more than 5 hours, and then the hydrogen storage tank 14 can store hydrogen, and the hydrogen storage environment of the hydrogen storage tank 14 is the first set temperature of 1°C.

[0108] In the embodiment of the present disclosure and other possible embodiments, a proper amount of tetrahydrofuran aqueous solution is added to the inner layer 3 of the tank body through the hydrogen storage inlet pipe 6 and the hydrogen storage tank 14 is fully shaken so that the porous medium layer 4 is fully wetted by the aqueous solution, and then the valve of the hydrogen storage outlet pipe 5 is opened to pour out the excess aqueous solution. After wiping off the residual aqueous solution in the hydrogen storage outlet pipe 5 and the hydrogen storage inlet pipe 6, the hydrogen storage inlet pipe 6 is connected to the gas source to start inflation until the gas pressure in the tank reaches the rated value, and then the valve of the hydrogen storage inlet pipe 6 is closed to end inflation.

[0109] In the embodiment of the present disclosure and other possible embodiments, since the hydrogen storage tank 14 adopts a composite hydrogen storage method, the porous medium layer 4 and the hydrogen hydrate interlayer 2 contain an aqueous solution. In order to ensure the purity of the output hydrogen, a membrane device 13 that can isolate water molecules and pass hydrogen molecules is installed in front of the hydrogen storage outlet pipe 5 and the interlayer outlet pipe 11 for filtering when releasing hydrogen.

[0110] In the embodiments of the present disclosure and other possible embodiments, a porous medium layer is added to the inner wall of the inner layer of the tank body, and an aqueous solution of tetrahydrofuran is added to wet it before filling the hydrogen. When filling the hydrogen, the wetted porous medium layer adsorbs hydrogen to form a solid hydrogen hydrate protective layer, so that the hydrogen stored in the tank cannot directly contact the metal layer of the inner layer of the tank body, thereby effectively preventing the hydrogen from overflowing, and can increase the hydrogen storage density of the hydrogen storage tank to form a composite hydrogen storage with the stored hydrogen.

[0111] In the embodiments of the present disclosure and other possible embodiments, tetrahydrofuran aqueous solution and hydrogen are filled into the hydrogen hydrate interlayer 2, so that the aqueous solution is saturated with hydrogen adsorption at two different temperatures of 1 degree Celsius and -200 degrees Celsius, so that the cage structure in the aqueous solution is fully filled with hydrogen molecules, and the overflowing hydrogen is further isolated. The inner and outer metal layers of the tank body are cryogenically treated to standardize the arrangement of metal atoms, reduce the size of the gaps between metal atoms, and reduce the possibility of hydrogen molecules entering the metal, which can effectively reduce the generation of hydrogen overflow and metal hydrogen embrittlement effect, and greatly improve the safety and service life of the hydrogen storage tank.

[0112] In the embodiments of the present disclosure and other possible embodiments, since the hydrogen storage tank adopts a composite hydrogen storage method, the porous medium layer and the hydrogen hydrate interlayer contain an aqueous solution. In order to ensure the purity of the output hydrogen, a membrane device 13 that can isolate water molecules and pass hydrogen molecules is installed in front of the hydrogen storage outlet pipe and the interlayer outlet pipe for filtering when releasing hydrogen.

[0113] In the embodiments of the present disclosure and other possible embodiments, tetrahydrofuran aqueous solution is charged into the hydrogen hydrate interlayer 2 by opening the valve of the interlayer inlet pipe 10, and the charging is stopped when the aqueous solution occupies half the volume of the hydrogen hydrate interlayer 2, and then hydrogen with a set pressure of 20 MPa is continuously charged into the interlayer, and the valve of the interlayer inlet pipe 10 is closed; the hydrogen storage tank 14 is placed in a cold storage with a first set temperature of 1°C and the tank body is properly shaken until the hydrogen-tetrahydrofuran hydrate completely fills the hydrogen hydrate interlayer 2; then, the hydrogen storage tank 14 is placed in an ultra-low temperature environment with a second set temperature of -200°C by liquid nitrogen to perform deep cryogenic treatment on the tank metal, and at the same time, the interlayer inlet pipe 10 is connected to the hydrogen source to perform deep cryogenic treatment on the hydrogen-tetrahydrofuran hydrate in the hydrogen hydrate interlayer 2.

[0114] In the embodiment of the present disclosure and other possible embodiments, after the cryogenic treatment is completed, the valve of the interlayer inlet pipe 10 is closed, and after being left to stand in a cold storage at a first set temperature of 1° C. for a second set time of more than 5 hours, the hydrogen storage operation is performed in the cold storage.

[0115] In the embodiment of the present disclosure and other possible embodiments, first open the valve of the hydrogen storage inlet pipe 6 to add an appropriate amount of tetrahydrofuran aqueous solution into the inner layer 3 of the tank body and fully shake the hydrogen storage tank 14, and then pour out the excess aqueous solution from the hydrogen storage outlet pipe 5. After wiping off the residual aqueous solution in the hydrogen storage outlet pipe 5 and the hydrogen storage inlet pipe 6, close the valve of the hydrogen storage outlet pipe 5, connect the hydrogen storage inlet pipe 6 to the gas source and start to input hydrogen. When the hydrogen in the inner layer 3 of the tank body reaches the rated pressure, the valve of the hydrogen storage inlet pipe 6 can be closed to complete the hydrogen storage operation.

[0116] In the embodiment of the present disclosure and other possible embodiments, the hydrogen release operation requires installing a membrane device 13 before the hydrogen storage outlet pipe 5 and the sandwich outlet pipe 11, and then opening the valves of both to release hydrogen.

[0117] The embodiment of the present disclosure also proposes a preparation device / system for a hydrogen hydrate composite hydrogen storage layer, comprising: a processor; a memory for storing instructions executable by the processor; wherein the processor is configured to call the instructions stored in the memory to execute the above-mentioned preparation method for the hydrogen hydrate composite hydrogen storage layer The disclosed embodiment also proposes a preparation device / system for a hydrogen hydrate composite hydrogen storage layer, comprising: a computer-readable storage medium having computer program instructions stored thereon, wherein the computer program instructions implement the above-mentioned preparation method for the hydrogen hydrate composite hydrogen storage layer when executed by a processor.

[0118] The disclosed embodiment also proposes a preparation device / system for a hydrogen hydrate composite hydrogen storage layer, including: a computer program product, wherein the computer program product is provided with a computer program / instruction, and when the computer program / instruction is executed by a processor, the preparation method of the hydrogen hydrate composite hydrogen storage layer is implemented.

[0119] In some embodiments, the functions or modules included in the device provided in the embodiments of the present disclosure can be used to execute the method for preparing a hydrogen hydrate composite hydrogen storage layer described in the above method embodiment. Its specific implementation can refer to the description of the above embodiment of the method for preparing a hydrogen hydrate composite hydrogen storage layer. For the sake of brevity, it will not be repeated here.

[0120] The embodiment of the present disclosure also provides a computer-readable storage medium on which computer program instructions are stored, and when the computer program instructions are executed by a processor, the method for preparing the hydrogen hydrate composite hydrogen storage layer is implemented. The computer-readable storage medium may be a non-volatile computer-readable storage medium.

[0121] The disclosed embodiment also provides an electronic device, comprising: a processor; a memory for storing instructions executable by the processor; wherein the processor is configured to perform the above-mentioned method for preparing a hydrogen hydrate composite hydrogen storage layer. The electronic device can be provided as a terminal, a server, or other forms of equipment.

[0122] The disclosed embodiment also provides a computer program product, which is provided with a computer program / instruction, and when the computer program / instruction is executed by a processor, the above-mentioned method for preparing the hydrogen hydrate composite hydrogen storage layer is implemented.

[0123] In the embodiments of the present disclosure and other possible embodiments, the technical solution corresponding to the above-mentioned multi-layer hydrogen overflow prevention utilizes the porous medium and hydrate of the porous medium layer 4 to separate the hydrogen from the metal layer by the property that the porous medium and hydrate cannot continue to absorb hydrogen after being saturated with hydrogen, and performs deep cryogenic treatment on the tank metal, thereby effectively reducing the risk of hydrogen embrittlement and increasing the service life of the hydrogen storage tank. Among them, the porous medium layer 4 corresponding to the inner layer 3 of the tank body can increase the hydrogen storage density of the hydrogen storage tank and increase the hydrogen storage capacity.

[0124] More specifically, in the embodiments of the present disclosure and other possible embodiments, a porous medium layer 4 is added to the inner wall of the inner layer 3 of the tank body, and an aqueous solution of tetrahydrofuran is added to wet it before filling the hydrogen. When filling the hydrogen, the wetted porous medium layer 4 adsorbs hydrogen to form a solid hydrogen hydrate protective layer, so that the hydrogen stored in the tank cannot directly contact the metal of the inner layer 3 of the tank body.

[0125] More specifically, in the embodiments of the present disclosure and other possible embodiments, tetrahydrofuran aqueous solution and hydrogen are filled into the hydrogen hydrate interlayer 2, so that the aqueous solution adsorbs hydrogen to saturation at two different temperatures, the first set temperature (1 degree Celsius) and the second set temperature (-200 degrees Celsius), so that the cage structure in the aqueous solution is fully filled with hydrogen molecules, and the overflowing hydrogen is further isolated. The metal of the inner layer 3 of the tank body and the outer layer 1 of the tank body are cryogenically treated to arrange the metal atoms in a standardized manner, reduce the size of the gaps between the metal atoms, and reduce the possibility of hydrogen molecules entering the metal.

[0126] More specifically, in the embodiments of the present disclosure and other possible embodiments, the present invention has a four-layer hydrogen overflow prevention mechanism, namely, a wetted porous medium adsorption layer-a cryogenically treated inner layer of the tank body-a hydrogen-tetrahydrofuran hydrate layer-a cryogenically treated outer layer of the tank body. Each layer of protection can effectively reduce the occurrence of hydrogen overflow and metal hydrogen embrittlement effect, and can achieve multi-layer composite protection, greatly improving the safety and service life of the hydrogen storage tank.

[0127] Figure 5 8 is a block diagram of an electronic device 800 according to an exemplary embodiment. For example, the electronic device 800 may be a mobile phone, a computer, a digital broadcast terminal, a messaging device, a game console, a tablet device, a medical device, a fitness device, a personal digital assistant, or the like.

[0128] Reference Figure 5, the electronic device 800 may include one or more of the following components: a processing component 802 , a memory 804 , a power component 806 , a multimedia component 808 , an audio component 810 , an input / output (I / O) interface 812 , a sensor component 814 , and a communication component 816 .

[0129] The processing component 802 generally controls the overall operation of the electronic device 800, such as operations associated with display, phone calls, data communications, camera operations, and recording operations. The processing component 802 may include one or more processors 820 to execute instructions to complete all or part of the steps of the above-mentioned method. In addition, the processing component 802 may include one or more modules to facilitate the interaction between the processing component 802 and other components. For example, the processing component 802 may include a multimedia module to facilitate the interaction between the multimedia component 808 and the processing component 802.

[0130] The memory 804 is configured to store various types of data to support operations on the electronic device 800. Examples of such data include instructions for any application or method operating on the electronic device 800, contact data, phone book data, messages, pictures, videos, etc. The memory 804 may be implemented by any type of volatile or non-volatile storage device or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic disk, or optical disk.

[0131] The power supply component 806 provides power to the various components of the electronic device 800. The power supply component 806 may include a power management system, one or more power supplies, and other components associated with generating, managing, and distributing power to the electronic device 800.

[0132] The multimedia component 808 includes a screen that provides an output interface between the electronic device 800 and the user. In some embodiments, the screen may include a liquid crystal display (LCD) and a touch panel (TP). If the screen includes a touch panel, the screen may be implemented as a touch screen to receive input signals from the user. The touch panel includes one or more touch sensors to sense touch, slide, and gestures on the touch panel. The touch sensor may not only sense the boundaries of the touch or slide action, but also detect the duration and pressure associated with the touch or slide operation. In some embodiments, the multimedia component 808 includes a front camera and / or a rear camera. When the electronic device 800 is in an operating mode, such as a shooting mode or a video mode, the front camera and / or the rear camera may receive external multimedia data. Each front camera and rear camera may be a fixed optical lens system or have a focal length and optical zoom capability.

[0133] The audio component 810 is configured to output and / or input audio signals. For example, the audio component 810 includes a microphone (MIC), and when the electronic device 800 is in an operation mode, such as a call mode, a recording mode, and a voice recognition mode, the microphone is configured to receive an external audio signal. The received audio signal can be further stored in the memory 804 or sent via the communication component 816. In some embodiments, the audio component 810 also includes a speaker for outputting audio signals.

[0134] I / O interface 812 provides an interface between processing component 802 and peripheral interface modules, such as keyboards, click wheels, buttons, etc. These buttons may include but are not limited to: home button, volume button, start button, and lock button.

[0135] The sensor assembly 814 includes one or more sensors for providing various aspects of status assessment for the electronic device 800. For example, the sensor assembly 814 can detect the open / closed state of the electronic device 800, the relative positioning of the components, such as the display and keypad of the electronic device 800, and the sensor assembly 814 can also detect the position change of the electronic device 800 or a component of the electronic device 800, the presence or absence of contact between the user and the electronic device 800, the orientation or acceleration / deceleration of the electronic device 800, and the temperature change of the electronic device 800. The sensor assembly 814 may include a proximity sensor configured to detect the presence of a nearby object without any physical contact. The sensor assembly 814 may also include an optical sensor, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, the sensor assembly 814 may also include an acceleration sensor, a gyroscope sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.

[0136] The communication component 816 is configured to facilitate wired or wireless communication between the electronic device 800 and other devices. The electronic device 800 can access a wireless network based on a communication standard, such as WiFi, 2G or 3G, or a combination thereof. In an exemplary embodiment, the communication component 816 receives a broadcast signal or broadcast-related information from an external broadcast management system via a broadcast channel. In an exemplary embodiment, the communication component 816 also includes a near field communication (NFC) module to facilitate short-range communication. For example, the NFC module can be implemented based on radio frequency identification (RFID) technology, infrared data association (IrDA) technology, ultra-wideband (UWB) technology, Bluetooth (BT) technology and other technologies.

[0137] In an exemplary embodiment, the electronic device 800 may be implemented by one or more application specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field programmable gate arrays (FPGAs), controllers, microcontrollers, microprocessors, or other electronic components to perform the above methods.

[0138] In an exemplary embodiment, a non-volatile computer-readable storage medium is also provided, such as a memory 804 including computer program instructions, which can be executed by a processor 820 of an electronic device 800 to perform the above method.

[0139] Figure 6 1 is a block diagram of an electronic device 1900 according to an exemplary embodiment. For example, the electronic device 1900 may be provided as a server. Figure 6 , the electronic device 1900 includes a processing component 1922, which further includes one or more processors, and a memory resource represented by a memory 1932 for storing instructions executable by the processing component 1922, such as an application. The application stored in the memory 1932 may include one or more modules, each corresponding to a set of instructions. In addition, the processing component 1922 is configured to execute instructions to perform the above method.

[0140] The electronic device 1900 may also include a power supply component 1926 configured to perform power management of the electronic device 1900, a wired or wireless network interface 1950 configured to connect the electronic device 1900 to a network, and an input / output (I / O) interface 1958. The electronic device 1900 may operate based on an operating system stored in the memory 1932, such as Windows Server™, Mac OS X™, Unix™, Linux™, FreeBSD™ or the like.

[0141] In an exemplary embodiment, a non-volatile computer-readable storage medium is also provided, such as a memory 1932 including computer program instructions, which can be executed by the processing component 1922 of the electronic device 1900 to perform the above method.

[0142] The present disclosure may be a system, a method and / or a computer program product. The computer program product may include a computer-readable storage medium carrying computer-readable program instructions for causing a processor to implement various aspects of the present disclosure. Computer readable storage medium can be a tangible device that can hold and store instructions used by an instruction execution device. Computer readable storage medium can be, for example, but not limited to, an electrical storage device, a magnetic storage device, an optical storage device, an electromagnetic storage device, a semiconductor storage device, or any suitable combination thereof. More specific examples (non-exhaustive list) of computer readable storage medium include: a portable computer disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), a static random access memory (SRAM), a portable compact disk read-only memory (CD-ROM), a digital versatile disk (DVD), a memory stick, a floppy disk, a mechanical encoding device, for example, a punch card or a convex structure in a groove on which instructions are stored, and any suitable combination thereof. The computer readable storage medium used here is not interpreted as a transient signal itself, such as a radio wave or other freely propagating electromagnetic wave, an electromagnetic wave propagated by a waveguide or other transmission medium (for example, an optical pulse by an optical fiber cable), or an electrical signal transmitted by a wire.

[0143] The computer-readable program instructions described herein can be downloaded from a computer-readable storage medium to each computing / processing device, or downloaded to an external computer or external storage device via a network, such as the Internet, a local area network, a wide area network, and / or a wireless network. The network can include copper transmission cables, optical fiber transmissions, wireless transmissions, routers, firewalls, switches, gateway computers, and / or edge servers. The network adapter card or network interface in each computing / processing device receives the computer-readable program instructions from the network and forwards the computer-readable program instructions for storage in the computer-readable storage medium in each computing / processing device.

[0144] The computer program instructions for performing the operations of the present disclosure may be assembly instructions, instruction set architecture (ISA) instructions, machine instructions, machine-dependent instructions, microcode, firmware instructions, state setting data, or source code or object code written in any combination of one or more programming languages, including object-oriented programming languages, such as Smalltalk, C++, etc., and conventional procedural programming languages, such as "C" language or similar programming languages. The computer-readable program instructions may be executed entirely on the user's computer, partially on the user's computer, as a separate software package, partially on the user's computer, partially on a remote computer, or entirely on a remote computer or server. In the case of a remote computer, the remote computer may be connected to the user's computer through any type of network, including a local area network (LAN) or a wide area network (WAN), or may be connected to an external computer (e.g., using an Internet service provider to connect through the Internet). In some embodiments, by using the state information of the computer-readable program instructions to personalize an electronic circuit, such as a programmable logic circuit, a field programmable gate array (FPGA), or a programmable logic array (PLA), the electronic circuit may execute the computer-readable program instructions, thereby implementing various aspects of the present disclosure.

[0145] Various aspects of the present disclosure are described herein with reference to flowcharts and / or block diagrams of methods, devices (systems) and computer program products according to embodiments of the present disclosure. It should be understood that each box in the flowchart and / or block diagram and the combination of boxes in the flowchart and / or block diagram can be implemented by computer-readable program instructions.

[0146] These computer-readable program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, or other programmable data processing device, thereby producing a machine, so that when these instructions are executed by the processor of the computer or other programmable data processing device, a device that implements the functions / actions specified in one or more boxes in the flowchart and / or block diagram is generated. These computer-readable program instructions can also be stored in a computer-readable storage medium, and these instructions cause the computer, programmable data processing device, and / or other equipment to work in a specific manner, so that the computer-readable medium storing the instructions includes a manufactured product, which includes instructions for implementing various aspects of the functions / actions specified in one or more boxes in the flowchart and / or block diagram.

[0147] Computer-readable program instructions may also be loaded onto a computer, other programmable data processing apparatus, or other device so that a series of operating steps are performed on the computer, other programmable data processing apparatus, or other device to produce a computer-implemented process, thereby causing the instructions executed on the computer, other programmable data processing apparatus, or other device to implement the functions / actions specified in one or more boxes in the flowchart and / or block diagram.

[0148] The flow chart and block diagram in the accompanying drawings show the possible architecture, function and operation of the system, method and computer program product according to multiple embodiments of the present disclosure. In this regard, each square box in the flow chart or block diagram can represent a part of a module, program segment or instruction, and a part of the module, program segment or instruction includes one or more executable instructions for realizing the specified logical function. In some alternative implementations, the function marked in the square box can also occur in a sequence different from that marked in the accompanying drawings. For example, two continuous square boxes can actually be executed substantially in parallel, and they can sometimes be executed in reverse order, depending on the functions involved. It should also be noted that each square box in the block diagram and / or flow chart, and the combination of the square boxes in the block diagram and / or flow chart can be implemented with a dedicated hardware-based system that performs the specified function or action, or can be implemented with a combination of special hardware and computer instructions.

[0149] The embodiments of the present disclosure have been described above, and the above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The selection of terms used herein is intended to best explain the principles of the embodiments, practical applications, or technical improvements to the technology in the market, or to enable other persons of ordinary skill in the art to understand the embodiments disclosed herein.

Claims

1. A method for preparing a hydrogen hydrate composite hydrogen storage layer, characterized in that: include: The hydrogen hydrate interlayer (2) between the outer layer (1) of the tank body and the inner layer (3) of the tank body is spontaneously filled to generate hydrogen-tetrahydrofuran hydrate; Placing a tank corresponding to the hydrogen hydrate interlayer (2) for generating the hydrogen-tetrahydrofuran hydrate in an ultra-low temperature environment corresponding to a second set temperature, and maintaining the environment for a first set time; After the first set time, the second set temperature is adjusted to be greater than the first set temperature corresponding to the second set temperature, and maintained for the second set time to prepare a hydrogen hydrate composite hydrogen storage layer.

2. The method for preparing the hydrogen hydrate composite hydrogen storage layer according to claim 1, characterized in that: The method for spontaneously filling a hydrogen hydrate interlayer (2) between an outer layer (1) of a tank and an inner layer (3) of a tank to generate hydrogen-tetrahydrofuran hydrate comprises: filling a tetrahydrofuran aqueous solution into the hydrogen hydrate interlayer (2) between the outer layer (1) of the tank and the inner layer (3) of the tank to a set spatial volume corresponding to the hydrogen hydrate interlayer (2); filling the hydrogen hydrate interlayer (2) containing or having the tetrahydrofuran aqueous solution with hydrogen of a set pressure; setting the tank body corresponding to the hydrogen hydrate interlayer (2) filled with the hydrogen and the tetrahydrofuran aqueous solution at a first set temperature to generate hydrogen-tetrahydrofuran hydrate; and / or, The tank corresponding to the hydrogen hydrate interlayer (2) filled with the hydrogen and the tetrahydrofuran aqueous solution is set at a first set temperature, and during the process of generating hydrogen-tetrahydrofuran hydrate, the tank is shaken / vibrated; and / or, Wherein, the set spatial volume is configured to be 40-60% of the spatial volume corresponding to the hydrogen hydrate interlayer (2); and / or, the set pressure is configured to be 15-30MPa; wherein, the set spatial volume is configured to be 50% of the spatial volume corresponding to the hydrogen hydrate interlayer (2); and / or, the set pressure is configured to be 20MPa.

3. The method for preparing the hydrogen hydrate composite hydrogen storage layer according to any one of claims 1 to 2, characterized in that: Also includes: When the tank body or hydrogen storage tank (14) is storing hydrogen, the temperature corresponding to the hydrogen storage environment of the tank body or hydrogen storage tank (14) is maintained at the first set temperature; at the first set temperature, a tetrahydrofuran aqueous solution is added to the inner layer (3) of the tank body, and after the porous medium layer (4) provided in the inner layer (3) of the tank body is soaked, the remaining tetrahydrofuran aqueous solution is discharged from the inner layer (3) of the tank body; and / or, After adding the tetrahydrofuran aqueous solution into the inner layer (3) of the tank body, shaking / vibrating the tank body; and / or, Wherein, the first set temperature is configured as a temperature corresponding to a non-ultra-low temperature environment; and / or, the set mole fraction corresponding to the tetrahydrofuran aqueous solution is configured as any value between 1-10%; and / or, the second set temperature is configured as any value between -200°C and 400°C; and / or, the first set temperature is configured as any value between -10°C and 30°C; and / or, the first set time is configured as any value between 10-24 hours; and / or, the second set time is configured as any value between 2-10 hours; and / or, Among them, the set molar fraction corresponding to the tetrahydrofuran aqueous solution is configured to be 5.56%; and / or, the second set temperature is configured to be -200°C; and / or, the first set temperature is configured to be 1°C; and / or, the first set time is configured to be 24 hours; and / or, the second set time is configured to be 5 hours.

4. A system for preparing a hydrogen hydrate composite hydrogen storage layer, characterized in that: include: A tank outer layer (1), a tank inner layer (3), and a hydrogen hydrate interlayer (2) formed between the tank outer layer (1) and the tank inner layer (3); A first preparation unit is used to spontaneously fill the hydrogen hydrate interlayer (2) between the outer layer (1) of the tank body and the inner layer (3) of the tank body to generate hydrogen-tetrahydrofuran hydrate; A second preparation unit is used to place a tank corresponding to the hydrogen hydrate interlayer (2) for generating the hydrogen-tetrahydrofuran hydrate in an ultra-low temperature environment corresponding to a second set temperature, and maintain it for a first set time; The third preparation unit is used to adjust the second set temperature to a first set temperature greater than the second set temperature corresponding to the second set temperature after the first set time, and maintain the temperature for the second set time to prepare a hydrogen hydrate composite hydrogen storage layer.

5. A system for preparing a hydrogen hydrate composite hydrogen storage layer, characterized in that: include: processor; A memory for storing processor executable instructions; wherein the processor is configured to call the instructions stored in the memory to execute the method for preparing a hydrogen hydrate composite hydrogen storage layer according to any one of claims 1 to 3; or, The method comprises: a computer-readable storage medium having computer program instructions stored thereon, wherein the computer program instructions, when executed by a processor, implement the method for preparing the hydrogen hydrate composite hydrogen storage layer according to any one of claims 1 to 3; or The invention comprises: a computer program product, wherein the computer program product is provided with a computer program / instruction, and the computer program / instruction, when executed by a processor, implements the method for preparing the hydrogen hydrate composite hydrogen storage layer according to any one of claims 1 to 3.

6. The system for preparing a hydrogen hydrate composite hydrogen storage layer according to claim 4, characterized in that: The first preparation unit comprises: an interlayer inlet pipe (10) and an interlayer outlet pipe (11) connected to the hydrogen hydrate interlayer (2), and a generation unit; The interlayer inlet pipe (10) is used to fill the hydrogen hydrate interlayer (2) between the outer layer (1) of the tank body and the inner layer (3) of the tank body with tetrahydrofuran aqueous solution to a set space volume corresponding to the hydrogen hydrate interlayer (2); when the tetrahydrofuran aqueous solution is filled to a set space volume corresponding to the hydrogen hydrate interlayer (2), the interlayer inlet pipe (10) is closed; The interlayer inlet pipe (10) is also used to fill the hydrogen hydrate interlayer (2) containing or having the tetrahydrofuran aqueous solution with hydrogen at a set pressure; The generating unit is used to set the tank corresponding to the hydrogen hydrate interlayer (2) filled with the hydrogen and the tetrahydrofuran aqueous solution at a first set temperature to generate hydrogen-tetrahydrofuran hydrate; The interlayer outlet pipe (11) is used to remove the remaining hydrogen and tetrahydrofuran aqueous solution in the hydrogen hydrate interlayer (2) from the hydrogen hydrate interlayer (2) after the hydrogen-tetrahydrofuran hydrate is generated; and / or, Wherein, the hydrogen-tetrahydrofuran hydrate is used to form a dense protective layer containing hydrogen hydrate on the surface of the hydrogen hydrate interlayer (2) to prevent leakage of hydrogen molecules; and / or, It also includes: a first shaking / vibrating unit, which is used to set the tank body corresponding to the hydrogen hydrate interlayer (2) filled with the hydrogen and the tetrahydrofuran aqueous solution at the first set temperature, and shake / vibrate the tank body during the process of generating hydrogen-tetrahydrofuran hydrate; wherein, before shaking / vibrating the tank body, the interlayer inlet pipe (10) and the interlayer outlet pipe (11) are closed; and / or, Wherein, the set spatial volume is configured to be 40-60% of the spatial volume corresponding to the hydrogen hydrate interlayer (2); and / or, the set pressure is configured to be 15-30MPa; wherein, the set spatial volume is configured to be 50% of the spatial volume corresponding to the hydrogen hydrate interlayer (2); and / or, the set pressure is configured to be 20MPa.

7. The system for preparing a hydrogen hydrate composite hydrogen storage layer according to any one of claims 4 or 6, characterized in that: The invention also comprises: a hydrogen storage outlet pipe (5) and a hydrogen storage inlet (6) which are in communication with the inner layer (3) of the tank body; the hydrogen storage inlet (6) is used to maintain the temperature corresponding to the hydrogen storage environment of the tank body or the hydrogen storage tank (14) at the first set temperature when the tank body or the hydrogen storage tank (14) is storing hydrogen; at the first set temperature, a tetrahydrofuran aqueous solution is added into the inner layer (3) of the tank body; the hydrogen storage outlet pipe (5) is used to discharge the remaining tetrahydrofuran aqueous solution from the inner layer (3) of the tank body after the porous medium layer (4) provided in the inner layer (3) of the tank body is soaked.

8. The system for preparing the hydrogen hydrate composite hydrogen storage layer according to claim 7, characterized in that: Also includes: a second shaking / vibrating unit; the second shaking / vibrating unit is used to shake / vibrate the tank body after adding the tetrahydrofuran aqueous solution into the inner layer (3) of the tank body; wherein, before shaking / vibrating the tank body, the hydrogen storage outlet pipe (5) and the hydrogen storage inlet (6) are closed; and / or, Wherein, the first set temperature is configured as a temperature corresponding to a non-ultra-low temperature environment; and / or, the set mole fraction corresponding to the tetrahydrofuran aqueous solution is configured as any value between 1-10%; and / or, the second set temperature is configured as any value between -200°C and 400°C; and / or, the first set temperature is configured as any value between -10°C and 30°C; and / or, the first set time is configured as any value between 10-24 hours; and / or, the second set time is configured as any value between 2-10 hours; and / or, Among them, the set molar fraction corresponding to the tetrahydrofuran aqueous solution is configured to be 5.56%; and / or, the second set temperature is configured to be -200°C; and / or, the first set temperature is configured to be 1°C; and / or, the first set time is configured to be 24 hours; and / or, the second set time is configured to be 5 hours.

9. The system for preparing the hydrogen hydrate composite hydrogen storage layer according to any one of claims 4 or 6-8, characterized in that: Also includes: A support structure (8) is provided between the inner layer (3) of the tank body and the outer layer (1) of the tank body; and / or, The support structure (8) is placed in the gap between the upper and lower circular heads of the inner layer (3) of the tank body and the outer layer (1) of the tank body, supporting the inner layer (3) of the tank body to remain stable and ensuring the stability of the hydrogen hydrate interlayer (2) between the inner layer (3) of the tank body and the outer layer (1) of the tank body; and / or, The tank body is provided with a pressure gauge connecting pipe (9) for installing a pressure gauge and a safety valve connecting pipe (12) for installing a safety valve.

10. A hydrogen hydrate composite hydrogen storage layer, characterized in that: The method for preparing a hydrogen hydrate composite hydrogen storage layer according to any one of claims 1 to 3 is used for preparation; and / or the system for preparing a hydrogen hydrate composite hydrogen storage layer according to any one of claims 4 to 9 is used for preparation.

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