A hydrogen or hydrogen-oxygen mixed gas storage and supply device and its usage method

Abstract

The present invention provides a hydrogen or hydrogen-oxygen mixed gas storage and supply device. The storage and supply device includes a hydrogen supply pipeline, an oxygen supply pipeline, and a mixed gas transmission pipeline. The hydrogen supply pipeline includes a vacuum pumping pipeline, an evacuation pipeline, a hydrogen filling pipeline, and a hydrogen discharging pipeline. The hydrogen filling pipeline includes: a main hydrogen filling pipeline, and a metal hydride hydrogen storage bottle pipeline connected to the end of the main hydrogen filling pipeline. A metal hydride hydrogen storage bottle group unit is provided at the end of the metal hydride hydrogen storage bottle pipeline; the hydrogen discharging pipeline has its starting end connected to the metal hydride hydrogen storage bottle group unit and its ending end connected to the mixed gas transmission pipeline; one end of the vacuum pumping pipeline is connected to the starting end of the metal hydride hydrogen storage bottle pipeline; one end of the evacuation pipeline is connected to the starting end of the metal hydride hydrogen storage bottle pipeline; the ending end of the oxygen supply pipeline is connected to the mixed gas transmission pipeline. The storage and supply device of the present invention is a hydrogen-oxygen ventilator and a hydrogen inhalation machine using high-safety solid hydrogen storage as the hydrogen source, which can achieve breathing of hydrogen-oxygen mixed gas with different mixing ratios and pure hydrogen breathing.

Description

Technical Field

[0001] The present invention belongs to the technical field of hydrogen storage and supply, and particularly relates to a hydrogen or hydrogen-oxygen mixed gas storage and supply device and a using method thereof. Background Art

[0002] Hydrogen is the simplest element in nature. Hydrogen gas is a colorless, odorless, tasteless, diatomic gas with certain reducibility. Hydrogen accounts for about 90% of the composition of cosmic matter and can be said to be the most basic chemical element in the universe. With the continuous development and improvement of hydrogen molecule medicine, the following have been recognized: 1. Hydrogen has an anti-inflammatory effect; 2. Hydrogen molecules have an antioxidant effect in organisms. Currently, it has been found that hydrogen can treat more than 70 types of diseases and has a protective effect on inflammation or allergies and other diseases in almost all organs such as the brain, eyes, spine, lungs, ears, heart, liver, intestines, pancreas, blood vessels...

[0003] Oxidative damage and inflammation are regarded as the basis for the occurrence of various diseases. The so-called selective antioxidant means that hydrogen can neutralize excessive free radicals harmful to the body without affecting the operation process of other important substances. Hydrogen inhalation therapy is known as hydrogen medicine in the industry. Hydrogen is a selective antioxidant molecule. First, it has strong biological safety. Even when using a very high dose, it will not cause harm to humans and organisms, which provides a dose selection width for using hydrogen antioxidant to treat diseases, provides a dose selection width for achieving effectiveness, and provides more possibilities for achieving effectiveness with more doses. Second, hydrogen has a super strong diffusion ability. Especially inside biological systems, hydrogen can diffuse and penetrate into any organ, any cell, any intracellular structure, and any biological macromolecule in the organism without being blocked.

[0004] In view of the strong antioxidant effect of hydrogen molecules, especially their high selectivity (only neutralizing toxic reactive oxygen free radicals), high diffusibility, and high safety, they have received extensive attention.

[0005] A hydrogen-oxygen ventilator is an instrument that enables hydrogen to be completely inhaled by the human body without leaking into the air, so as to achieve safe breathing of oxygen and hydrogen. The hydrogen-oxygen atomizing ventilator was listed as a Class III respiratory medical device of "National Innovation" by the State Drug Administration in March 2017. It passed the approval of the Drug Administration in February 2020 and was approved for listing as a Class III medical device. After the product was launched, it was included in the key guarantee materials for epidemic prevention and control. This device can generate 3 liters of hydrogen-oxygen mixed gas per minute for human inhalation, using the inhalation of hydrogen-oxygen mixed gas to enhance the gas diffusion degree and flow rate. At the same time, hydrogen can also have anti-inflammatory effects, effectively prevent airway remodeling and pulmonary fibrosis, reduce goblet cell hyperplasia, improve lung function, counteract the side effects after using high doses of hormones, and scavenge a large number of free radicals generated due to lung damage after virus invasion into the body.

[0006] At present, the hydrogen-oxygen hybrid hydrogen generator uses the method of electrolyzing water to produce hydrogen. However, the hydrogen-oxygen mixed gas collects the hydrogen and oxygen decomposed from water together (hydrogen accounts for 66%). While pure hydrogen is obtained by the hydrogen-oxygen separation technology of the hydrogen inhaler, separating and releasing oxygen as a by-product into the air, aiming to obtain hydrogen with sufficient purity (hydrogen accounts for more than 99%). The hydrogen flow rate of the hydrogen-oxygen atomizer is mostly controlled within the range of 0.3L / min to 1L / min, with a small flow rate, and the water quality requires pure water or distilled water. Electrolyzing water to produce hydrogen requires power supply. Obviously, hydrogen supply cannot be guaranteed in the wild or in remote areas without power supply.

[0007] Therefore, it is necessary to provide an improved technical solution for the deficiencies of the above-mentioned existing technologies. Summary of the Invention

[0008] The purpose of the present invention is to provide a device and its usage method for storing and supplying hydrogen or hydrogen-oxygen mixed gas, so as to solve the problem that hydrogen supply cannot be guaranteed by electrolyzing water to produce hydrogen in the wild or in remote areas without power supply.

[0009] In order to achieve the above purpose, the present invention provides the following technical solutions:

[0010] A device for storing and supplying hydrogen or hydrogen-oxygen mixed gas, the storage and supply device includes a hydrogen supply pipeline, an oxygen supply pipeline, and a mixed gas transmission pipeline. Among them, the hydrogen supply pipeline includes: a vacuum pumping pipeline, an evacuation pipeline, a hydrogen filling pipeline, and a hydrogen releasing pipeline. Among them, the hydrogen filling pipeline includes: a hydrogen filling main pipeline, and a metal hydride hydrogen storage bottle pipeline connected to the end of the hydrogen filling main pipeline. The end of the metal hydride hydrogen storage bottle pipeline is provided with a metal hydride hydrogen storage bottle group unit. The hydrogen filling pipeline is used for storing hydrogen and providing hydrogen; the hydrogen releasing pipeline, the starting end is connected to the metal hydride hydrogen storage bottle group unit, and the end is connected to the mixed gas transmission pipeline; the vacuum pumping pipeline, one end is connected to the starting end of the metal hydride hydrogen storage bottle pipeline, and is used for pumping vacuum for the metal hydride hydrogen storage bottle group unit; the evacuation pipeline, one end is connected to the starting end of the metal hydride hydrogen storage bottle pipeline, and is used for evacuating the gas in the metal hydride hydrogen storage bottle group unit; the oxygen supply pipeline, the end is connected to the mixed gas transmission pipeline.

[0011] For the hydrogen or hydrogen-oxygen mixed gas storage and supply device as described above, as a preferred solution, a high-pressure hydrogen storage bottle group is provided at the starting end of the hydrogen filling main pipeline. On the hydrogen filling main pipeline, a first needle valve, a ball valve, a filter, a first solenoid valve, a first pressure sensor, a check valve, a first pressure gauge, and a first pressure reducing valve are sequentially arranged from its starting end.

[0012] As a more preferred solution, the high-pressure hydrogen storage bottle group includes two high-pressure hydrogen storage bottles arranged in parallel, and there are two first needle valves, and the two first needle valves are correspondingly arranged at the outlets of the two high-pressure hydrogen storage bottles.

[0013] For the hydrogen or hydrogen-oxygen mixed gas storage and supply device as described above, as a preferred solution, on the metal hydride hydrogen storage bottle pipeline, a second solenoid valve, a second pressure sensor, a second pressure gauge, a first flowmeter, and a second needle valve are sequentially arranged from its starting end, and the second needle valve is located at the outlet of the metal hydride hydrogen storage bottle group unit for opening or closing the metal hydride hydrogen storage bottle group unit.

[0014] As a more preferred solution, the pipeline between the first flowmeter and the second needle valve is an elastic connecting pipeline.

[0015] For the hydrogen or hydrogen-oxygen mixed gas storage and supply device as described above, as a preferred solution, the metal hydride hydrogen storage bottle group unit includes a plurality of metal hydride hydrogen storage bottles, and there are correspondingly multiple metal hydride hydrogen storage bottle pipelines, and the multiple metal hydride hydrogen storage bottle pipelines are arranged in parallel, and one end of each metal hydride hydrogen storage bottle pipeline is correspondingly provided with one metal hydride hydrogen storage bottle; one of the multiple metal hydride hydrogen storage bottles is connected to the starting end of the hydrogen release pipeline.

[0016] For the hydrogen or hydrogen-oxygen mixed gas storage and supply device as described above, as a preferred solution, the other end of the evacuation pipeline is provided with a vacuum pump, and on the evacuation pipeline, a vacuum gauge, a third needle valve, a third pressure gauge, and a safety valve are sequentially arranged from the vacuum pump end.

[0017] For the hydrogen or hydrogen-oxygen mixed gas storage and supply device as described above, as a preferred solution, the other end of the exhaust pipeline is provided with a flame arrester, and a fourth needle valve is also arranged on the exhaust pipeline.

[0018] For the hydrogen or hydrogen-oxygen mixed gas storage and supply device as described above, as a preferred solution, on the hydrogen release pipeline, a fifth needle valve and a second flowmeter are sequentially arranged from its starting end, and the fifth needle valve is arranged at the outlet of the metal hydride hydrogen storage bottle group unit or near the outlet.

[0019] For the hydrogen or hydrogen-oxygen mixed gas storage and supply device as described above, as a preferred solution, an oxygen cylinder is arranged at the starting end of the oxygen supply pipeline, and on the oxygen supply pipeline, a sixth needle valve, a second pressure reducing valve, and a third flowmeter are sequentially arranged from its starting end.

[0020] The hydrogen or hydrogen-oxygen mixed gas storage and supply device as described above, as a preferred embodiment, is provided with a gas mixing chamber at the starting end of the mixed gas delivery pipeline, and the gas mixing chamber is connected to the end of the oxygen supply pipeline and to the end of the hydrogen discharge pipeline, and is used for receiving and mixing gases from the hydrogen discharge pipeline and the oxygen supply pipeline; a seventh needle valve, a third pressure reducing valve and a fourth flow meter are sequentially provided on the mixed gas delivery pipeline from its starting end, and an air suction hood is provided at the end of the mixed gas delivery pipeline.

[0021] The present invention also proposes a method for using the hydrogen or hydrogen-oxygen mixed gas storage and supply device as described above, the method comprising the following steps:

[0022] Step S1, using a vacuum pipeline to vacuum the metal hydride hydrogen storage bottle group unit;

[0023] Step S2, using a hydrogen filling pipeline to perform hydrogen filling treatment on the metal hydride hydrogen storage bottle group unit;

[0024] Step S3, using an emptying pipeline to empty the metal hydride hydrogen storage bottle group unit;

[0025] Step S4, repeating step S1, step S2 and step S3, and cycling for more than two times, to activate the metal hydride hydrogen storage bottle group unit;

[0026] Step S5, performing flow detection on the metal hydride hydrogen storage bottle group unit after the activation treatment;

[0027] Step S6, using a hydrogen discharge pipeline to discharge hydrogen from the metal hydride hydrogen storage bottle group unit, and discharge hydrogen into the gas mixing chamber of the mixed gas delivery pipeline;

[0028] Step S7, using an oxygen supply pipeline to transport oxygen to a gas mixing chamber of a mixed gas transport pipeline to obtain a hydrogen-oxygen mixed gas;

[0029] Step S8, using a mixed gas delivery pipeline to deliver the hydrogen-oxygen mixed gas.

[0030] Beneficial effects:

[0031] 1. The hydrogen or hydrogen-oxygen mixed gas storage and supply device provided by the present invention is a hydrogen-oxygen respirator and hydrogen inhaler with high-safety solid-state hydrogen storage as the hydrogen source, which can not only meet the breathing of hydrogen-oxygen mixed gases with different flow ratios, but also meet the needs of hydrogen inhalers that independently supply high-purity hydrogen from metal hydride hydrogen storage bottles.

[0032] 2. The present invention adopts high-safety, low-pressure metal hydride hydrogen storage as the hydrogen source supply. Compared with the hydrogen source provided by water electrolysis, the metal hydride hydrogen storage and hydrogen supply technology is safe, low-pressure, simple to use, safe and reliable, and is particularly suitable for hospitals, homes, the wild or remote areas without electricity supply.

[0033] 3. A highly safe solid-state hydrogen storage-based hydrogen-oxygen ventilator and hydrogen inhaler according to the present invention. The solid-state hydrogen storage bottle can achieve on-line vacuum pumping, activation, hydrogen filling, and evacuation, saving resources and reducing costs. The hydrogen or hydrogen-oxygen mixed gas storage and supply device of the present invention can also be directly used to fill hydrogen into metal hydride hydrogen storage bottles to meet the standby requirements of multiple metal hydride hydrogen storage bottles.

[0034] 4. In the hydrogen or hydrogen-oxygen mixed gas storage and supply device provided by the present invention, the gas mixing chamber is the hub of the hydrogen supply pipeline, oxygen supply pipeline, and mixed gas delivery pipeline. When different proportions of mixed gas are required, the hydrogen release pipeline and oxygen supply pipeline can be controlled and adjusted to achieve precise control of the mixed gas; when only pure hydrogen supply is required, the oxygen supply pipeline is closed and only the hydrogen release pipeline is opened; when the hydrogen supply is insufficient, the hydrogen supply pipeline is opened to fill hydrogen into the metal hydride hydrogen storage bottle; when in first aid or the field, only the standby metal hydride hydrogen storage bottle, oxygen bottle, and part of the mixed gas pipeline can be carried to ensure hydrogen-oxygen supply and hydrogen inhalation. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] The specification drawings forming a part of this application are used to provide a further understanding of the present invention. The schematic embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. Among them:

[0036] Figure 1 It is a schematic diagram of the hydrogen or hydrogen-oxygen mixed gas storage and supply device according to an embodiment of the present invention.

[0037] Reference numerals in the drawings: T0, T1, high-pressure hydrogen storage bottles; 1, 2, first needle valves; 3, ball valve; 4, filter; 5, first solenoid valve; 6, first pressure sensor; 7, check valve; 8, first pressure gauge; 9, first pressure reducing valve; 10, 14, 18, second solenoid valves; 11, 15, 19, second pressure sensors; 12, 16, 20, second pressure gauges; 13, 17, 21, first flow meters; 22, 23, 24, second needle valves; L1, L2, L3, flexible connecting pipes; S0, S1, S2, metal hydride hydrogen storage bottles; 25, safety valve; 26, third pressure sensor, 27, third needle valve; 28, vacuum gauge; 29, vacuum pump; 30, fourth needle valve; 31, flame arrester; 32, fifth needle valve; 33, second flow meter; 34, sixth needle valve; 35, second pressure reducing valve; 36, third flow meter; 37, seventh needle valve; 38, third pressure reducing valve; 39, fourth flow meter; 40, suction hood; T3, oxygen bottle; T4, gas mixing chamber. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0038] The technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention belong to the scope of protection of the present invention.

[0039] The present invention will be described in detail below with reference to the embodiments. It should be noted that, without conflict, the embodiments in the present invention and the features in the embodiments can be combined with each other.

[0040] The hydrogen or hydrogen-oxygen mixed gas storage and supply device provided by the present invention is a hydrogen-oxygen ventilator and hydrogen inhaler with high-safe solid-state hydrogen storage as the hydrogen source, which can realize the breathing of hydrogen-oxygen mixed gas with different mixing ratios and pure hydrogen breathing. Among them, the hydrogen source supply adopts a metal hydride hydrogen storage bottle with low pressure, safety, and high volumetric hydrogen storage density, which can realize multiple functions such as online vacuum pumping, online activation, online evacuation, and hydrogen absorption and release of the metal hydride hydrogen storage bottle, ensuring the hydrogen source supply of a single bottle body and the standby of multiple bottle groups of hydrogen sources. It not only meets the breathing of hydrogen-oxygen mixed gas with different flow ratios but also meets the requirements of a hydrogen inhaler for the separate supply of high-purity hydrogen by the metal hydride hydrogen storage bottle.

[0041] It should be noted that for metal hydride hydrogen storage materials, under certain temperature and pressure conditions, these metals can "absorb" a large amount of hydrogen gas, react to form metal hydrides, and release heat at the same time. Subsequently, when these metal hydrides are heated, they will decompose and release the hydrogen stored in them. These metals that can "absorb" hydrogen gas are called hydrogen storage alloys, which are currently mainly classified into titanium-based hydrogen storage alloys, zirconium-based hydrogen storage alloys, iron-based hydrogen storage alloys, and rare-earth-based hydrogen storage alloys. The metal hydride hydrogen storage bottle is to place the hydrogen storage alloy in the hydrogen storage bottle in a certain way, utilize the reversible hydrogen absorption and release ability of the hydrogen storage alloy, the hydrogen storage alloy absorbs hydrogen gas to form metal hydrides, with a large hydrogen storage density and a low hydrogen storage pressure, which can ensure the supply of hydrogen gas for a hydrogen-oxygen hybrid hydrogen-oxygen machine and a hydrogen inhaler. Due to the hydrogen purification function of the hydrogen storage alloy, after 99.99% hydrogen gas is purified by hydrogen absorption of the hydrogen storage material, the purity of the released hydrogen gas is 99.999%.

[0042] Different from the hydrogen source provided by electrolytic water hydrogen production, the present invention adopts the metal hydride hydrogen storage and supply technology, which is safe, low-pressure, simple in use method, safe and reliable, and is especially suitable for hospitals, families, the wild, or remote areas without power supply.

[0043] Such as Figure 1As shown, in a specific embodiment of the present invention, a hydrogen or hydrogen-oxygen mixed gas storage and supply device includes a hydrogen supply pipeline, an oxygen supply pipeline, and a mixed gas transmission pipeline. Among them, the hydrogen supply pipeline includes a vacuum pumping pipeline, an evacuation pipeline, a hydrogen filling pipeline, and a hydrogen release pipeline. Among them, the hydrogen filling pipeline includes: a hydrogen filling main pipeline, and a metal hydride hydrogen storage bottle pipeline connected to the end of the hydrogen filling main pipeline. A metal hydride hydrogen storage bottle group unit is provided at the end of the metal hydride hydrogen storage bottle pipeline. The hydrogen filling pipeline is used for hydrogen storage and providing hydrogen; the hydrogen release pipeline, the starting end is connected to the metal hydride hydrogen storage bottle group unit, and the ending end is connected to the mixed gas transmission pipeline; the vacuum pumping pipeline, one end is connected to the starting end of the metal hydride hydrogen storage bottle pipeline, and is used for pumping vacuum for the metal hydride hydrogen storage bottle group unit; the evacuation pipeline, one end is connected to the starting end of the metal hydride hydrogen storage bottle pipeline, and is used for evacuating the gas in the metal hydride hydrogen storage bottle group unit; the oxygen supply pipeline, the ending end is connected to the mixed gas transmission pipeline.

[0044] The mixing chamber in the mixed gas transmission pipeline is the hub of the hydrogen supply pipeline, the oxygen supply pipeline, and the mixed gas transmission pipeline. When different proportions of mixed gas are required, the hydrogen release pipeline and the oxygen supply pipeline can be controlled and adjusted to achieve precise control of the mixed gas; when only pure hydrogen supply is required, the oxygen supply pipeline is closed and only the hydrogen release pipeline is opened; when the hydrogen supply is insufficient, the hydrogen supply pipeline is opened to fill the metal hydride hydrogen storage bottle with hydrogen; when in first aid or in the wild, only the spare metal hydride hydrogen storage bottle, oxygen bottle, and part of the mixed gas pipeline can be carried to ensure the supply of hydrogen and oxygen and hydrogen inhalation.

[0045] As Figure 1 shown, in a specific embodiment of the present invention, a high-pressure hydrogen storage bottle group is provided at the starting end of the hydrogen filling main pipeline. A first needle valve 1, a ball valve 3, a filter 4, a first solenoid valve 5, a first pressure sensor 6, a check valve 7, a first pressure gauge 8, and a first pressure reducing valve 9 are sequentially arranged on the hydrogen filling main pipeline from its starting end.

[0046] The main function of the hydrogen filling pipeline of the present invention is to fill the metal hydride hydrogen storage bottle group unit with hydrogen. On the one hand, it ensures the activation requirements of the hydrogen storage bottle, and on the other hand, it ensures the repeated hydrogen filling requirements of a single or spare hydrogen storage bottle after the activated metal hydride hydrogen storage bottle is evacuated or hydrogen is released.

[0047] In a preferred embodiment of the present invention, as Figure 1As shown in the figure, the high-pressure hydrogen storage bottle group includes two high-pressure hydrogen storage bottles arranged in parallel. There are two first needle valves, and the two first needle valves are correspondingly arranged at the outlets of the two high-pressure hydrogen storage bottles. The two high-pressure hydrogen storage bottles are the high-pressure hydrogen storage bottle T0 and the high-pressure hydrogen storage bottle T1 respectively. Among them, the high-pressure hydrogen storage bottle T1 is a spare high-pressure hydrogen storage bottle. The first needle valve 1 among the two first needle valves is arranged at the outlet of the high-pressure hydrogen storage bottle T0, and the first needle valve 2 is arranged at the outlet of the spare high-pressure hydrogen storage bottle T1. With such a setting, when the high-pressure hydrogen storage bottle T0 fails, the spare high-pressure hydrogen storage bottle T1 can be used for operation, which effectively ensures the smooth operation of the hydrogen filling pipeline.

[0048] In a specific embodiment of the present invention, as Figure 1 shown, the metal hydride hydrogen storage bottle pipeline is successively provided with a second solenoid valve 10, a second pressure sensor 11, a second pressure gauge 12, a first flowmeter 13, and a second needle valve 24 from its starting end. The second needle valve 24 is located at the outlet of the metal hydride hydrogen storage bottle group unit and is used to open or close the metal hydride hydrogen storage bottle group unit.

[0049] In a preferred embodiment of the present invention, the pipeline between the first flowmeter 13 and the second needle valve 24 is an elastic connecting pipeline L3. The setting of the elastic connecting pipeline can help the hydrogen storage bottle to change bottles conveniently. If a hard connecting pipeline is used, frequent bottle changing is likely to cause the pipeline to bend, thus damaging the pipeline.

[0050] It can be understood that the hydrogen filling pipeline of the present invention is composed of a hydrogen filling main pipeline and a metal hydride hydrogen storage bottle pipeline. The end of the hydrogen filling main pipeline is connected to the starting end of the metal hydride hydrogen storage bottle pipeline. The starting end of the hydrogen filling main pipeline is provided with a high-pressure hydrogen storage bottle group T0, and is successively provided with a first needle valve 1, a ball valve 3, a filter 4, a first solenoid valve 5, a first pressure sensor 6, a check valve 7, a first pressure gauge 8, and a first pressure reducing valve 9 from its starting end; the end of the metal hydride hydrogen storage bottle pipeline is provided with a metal hydride hydrogen storage bottle group unit, and is successively provided with a second solenoid valve 10, a second pressure sensor 11, a second pressure gauge 12, a first flowmeter 13, and a second needle valve 24 from its starting end. The second needle valve 24 is arranged at the outlet of the metal hydride hydrogen storage bottle group unit.

[0051] In a preferred embodiment of the present invention, the metal hydride hydrogen storage bottle group unit includes a plurality of metal hydride hydrogen storage bottles. There are correspondingly multiple metal hydride hydrogen storage bottle pipelines. The multiple metal hydride hydrogen storage bottle pipelines are arranged in parallel, and the end of each metal hydride hydrogen storage bottle pipeline is correspondingly provided with a metal hydride hydrogen storage bottle; one of the multiple metal hydride hydrogen storage bottles is connected to the hydrogen release pipeline.

[0052] As Figure 1As shown, in the specific embodiment of the present invention, the three groups of parallel metal hydride hydrogen storage bottle group units contain three branches, namely three metal hydride hydrogen storage bottle pipelines, which are branch 1, branch 2 and branch 3 respectively. Branch 1, branch 2 and branch 3 are arranged in parallel, and their starting ends are all connected to the end of the hydrogen filling main pipeline. Among them, branch 1 is sequentially provided with a second solenoid valve 10, a second pressure sensor 11, a second pressure gauge 12, a first flow meter 13, and a second needle valve 24 from its starting end. A metal hydride hydrogen storage bottle S2 is arranged at the end of branch 1. The pipeline between the first flow meter 13 and the second needle valve 24 is an elastic connection pipeline L3; branch 2 is sequentially provided with a second solenoid valve 14, a second pressure sensor 15, a second pressure gauge 16, a first flow meter 17 and a second needle valve 23 from its starting end. A metal hydride hydrogen storage bottle S1 is arranged at the end of branch 2. The pipeline between the first flow meter 17 and the second needle valve 23 is an elastic connection pipeline L2. Branch 3 is sequentially provided with a second solenoid valve 18, a second pressure sensor 19, a second pressure gauge 20, a first flow meter 21 and a second needle valve 22 from its starting end. A metal hydride hydrogen storage bottle S0 is arranged at the end of branch 3. The pipeline between the first flow meter 21 and the second needle valve 22 is an elastic connection pipeline L1. The metal hydride hydrogen storage bottle S0 at the end of branch 3 is connected to the starting end of the hydrogen release pipeline. The present invention adopts three branches, among which branch 3 is the hydrogen source supply end, and the metal hydride hydrogen storage bottles S2 in branch 1 and the metal hydride hydrogen storage bottle S1 in branch 2 are the standby hydrogen source supplies. Once the hydrogen in the hydrogen storage bottle S0 in branch 3 is exhausted, the hydrogen storage bottles S2 and S1 can replace the hydrogen storage bottle S0 as standby hydrogen bottles to ensure the hydrogen source supply.

[0053] It should be noted that it can also be that the metal hydride hydrogen storage bottle S2 at the end of branch 1 is connected to the starting end of the hydrogen release pipeline, or the metal hydride hydrogen storage bottle S1 at the end of branch 2 is connected to the starting end of the hydrogen release pipeline. In actual operation, the metal hydride hydrogen storage bottle connected to the starting end of the hydrogen release pipeline can be determined according to the actual situation.

[0054] As Figure 1 shown, in the specific embodiment of the present invention, a vacuum pump 29 is provided at the other end of the vacuum pipeline. A vacuum gauge 28, a third needle valve 27, a third pressure gauge 26 and a safety valve 25 are sequentially arranged on the vacuum pipeline from the vacuum pump end. The main function of the vacuum pipeline is to evacuate the metal hydride hydrogen storage bottle group unit to remove the epidermal oxides and impurities of the metal hydride hydrogen storage material.

[0055] As Figure 1 shown, in the specific embodiment of the present invention, a flame arrester 31 is provided at the other end of the evacuation pipeline, and a fourth needle valve 30 is also arranged on the evacuation pipeline. The main function of the evacuation pipeline is to evacuate the metal hydride hydrogen storage bottle group unit.

[0056] AsFigure 1 As shown in the figure, in a specific embodiment of the present invention, a fifth needle valve 32 and a second flowmeter 33 are sequentially arranged on the hydrogen release pipeline from its starting end. The fifth needle valve 32 is arranged at or near the outlet of the metal hydride hydrogen storage bottle group unit.

[0057] In this embodiment, the starting end of the hydrogen release pipeline is connected to the metal hydride hydrogen storage bottle S0 at the end of branch 3. At this time, the fifth needle valve 32 is arranged near the outlet of the metal hydride hydrogen storage bottle S0, and the second flowmeter 33 is a mass flowmeter. The main function of the hydrogen release pipeline is to release hydrogen into the gas mixing chamber T4 under the required conditions of precise proportional control of the metal hydride hydrogen storage bottle S0 to achieve stable operation and supply a hydrogen source.

[0058] As Figure 1 shown, in a specific embodiment of the present invention, an oxygen cylinder T3 is arranged at the starting end of the oxygen supply pipeline. A sixth needle valve 34, a second pressure reducing valve 35, and a third flowmeter 36 are sequentially arranged on the oxygen supply pipeline from its starting end. Here, the third flowmeter 36 is a mass flowmeter. The main function of the oxygen supply pipeline is to release oxygen into the gas mixing chamber T4 under the required conditions of precise proportional control of high-purity oxygen to achieve stable operation and supply an oxygen source.

[0059] As Figure 1 shown, in a specific embodiment of the present invention, a gas mixing chamber T4 is arranged at the starting end of the mixed gas transmission pipeline. The gas mixing chamber T4 is connected to the end of the oxygen supply pipeline and the end of the hydrogen release pipeline; a seventh needle valve 37, a third pressure reducing valve 38, and a fourth flowmeter 39 are sequentially arranged on the mixed gas transmission pipeline from its starting end, and an air suction hood 40 is arranged at the end of the mixed gas transmission pipeline. Here, the gas mixing chamber T4 is the hub of the hydrogen supply pipeline, the oxygen supply pipeline, and the mixed gas transmission pipeline, and is used to receive and mix the gases from the hydrogen release pipeline and the oxygen supply pipeline. The gas in the gas mixing chamber T4 is a mixed gas of hydrogen and oxygen.

[0060] To further understand the hydrogen or hydrogen-oxygen mixed gas storage and supply device of the present invention, the present invention also proposes a use method of the hydrogen or hydrogen-oxygen mixed gas storage and supply device as described above.

[0061] The test basis standard of the present invention is that the hydrogen purity should meet the requirements of high-purity hydrogen in GB / T3634.2-2011; the test instruments and equipment should be inspected and qualified according to the general regulations in the field and be within the inspection validity period; the accuracy of the hydrogen mass flow controller should not be lower than ±(1%Rdg + 0.2F.S), and the repeatability should not be lower than 0.2%F.S.; the accuracy of the pressure sensor should not be lower than ±0.5%F.S.; the ultimate pressure of the vacuum pump should be lower than 10 -2 mbar. During the test, there is a certain degree of repeated operation in the present invention to ensure the rigor of the test.

[0062] In a specific embodiment of the present invention, the usage method of the hydrogen or hydrogen-oxygen mixed gas storage and supply device includes the following steps:

[0063] Step S1, evacuate the metal hydride hydrogen storage bottle group unit using a vacuum pipeline. Among them, the evacuation method for the metal hydride hydrogen storage bottle S2 at the end of branch 1 is specifically as follows: close all the ball valves and needle valves on the vacuum pipeline and the three branches, turn on the vacuum pump 29, open the third needle valve 27, the second needle valve 24, and the bottle mouth valve of the metal hydride hydrogen storage bottle S2, so as to evacuate the metal hydride hydrogen storage bottle S2 at the end of branch 1. The evacuation time is at least 12 hours. After the evacuation is completed, close the bottle mouth valve of the hydrogen storage bottle S2, the second needle valve 24, the third needle valve 27, and the vacuum pump 29 in sequence.

[0064] The evacuation method for the metal hydride hydrogen storage bottle S1 at the end of branch 2 is specifically as follows: close all the ball valves and needle valves on the vacuum pipeline and the three branches, turn on the vacuum pump 29, open the third needle valve 27, the second needle valve 23, and the bottle mouth valve of the metal hydride hydrogen storage bottle S1, so as to evacuate the metal hydride hydrogen storage bottle S1 at the end of branch 2. The evacuation time is at least 12 hours. After the evacuation is completed, close the bottle mouth valve of the hydrogen storage bottle S1, the second needle valve 23, the third needle valve 27, and the vacuum pump 29 in sequence.

[0065] The evacuation method for the metal hydride hydrogen storage bottle S0 at the end of branch 3 is specifically as follows: close all the ball valves and needle valves on the vacuum pipeline and the three branches, turn on the vacuum pump 29, open the third needle valve 27, the second needle valve 22, and the bottle mouth valve of the metal hydride hydrogen storage bottle S0, so as to evacuate the metal hydride hydrogen storage bottle S0 at the end of branch 3. The evacuation time is at least 12 hours. After the evacuation is completed, close the bottle mouth valve of the metal hydride hydrogen storage bottle S0, the second needle valve 22, the third needle valve 27, and the vacuum pump 29 in sequence.

[0066] Step S2, fill the metal hydride hydrogen storage bottle group unit with hydrogen using a hydrogen filling pipeline. Among them, the hydrogen filling method for branch 1 is specifically as follows: open the valve of the high-pressure hydrogen cylinder T0, open the first needle valve 1, the ball valve 3, turn on the first electromagnetic valve 5, adjust the first pressure reducing valve 9 and check the pressure value of the first pressure gauge 8 of the pressure reducing valve, output the pressure to the pressure value required for the test, set the pressure to 5 MPa, adjust the first flowmeter 13 to the set value, turn on the second electromagnetic valve 10, open the second needle valve 24 and the bottle mouth valve of the metal hydride hydrogen storage bottle S2, and fill the metal hydride hydrogen storage bottle S2 with hydrogen until the hydrogen filling pressure reaches 5 MPa. After 5 hours of constant pressure, the hydrogen filling is completed. Then, close the bottle mouth valve of the metal hydride hydrogen storage bottle S2, the second needle valve 24, the second electromagnetic valve 10, the first electromagnetic valve 5, the ball valve 3, the first needle valve 1, and the valve of the high-pressure hydrogen cylinder T0 in sequence.

[0067] The hydrogen charging process for Branch 2 is as follows: Open the valve of the high-pressure hydrogen cylinder T0, open the first needle valve 1, the ball valve 3, and turn on the first solenoid valve 5. Adjust the first pressure reducing valve 9 and check the pressure value on the first pressure gauge 8 of the pressure reducing valve. Output the pressure to the required pressure value for the test, set the pressure to 5 MPa, adjust the first flow meter 17 to the set value, turn on the second solenoid valve 14, open the second needle valve 23 and the bottle mouth valve of the metal hydride hydrogen storage bottle S1, and charge the metal hydride hydrogen storage bottle S1 with hydrogen until the hydrogen charging pressure reaches 5 MPa. Keep the pressure constant for 5 hours to complete the hydrogen charging. Then, close the bottle mouth valve of the metal hydride hydrogen storage bottle S1, the second needle valve 23, the second solenoid valve 14, the first solenoid valve 5, the ball valve 3, the first needle valve 1, and the valve of the high-pressure hydrogen cylinder T0 in sequence.

[0068] The hydrogen charging process for Branch 3 is as follows: Open the valve of the high-pressure hydrogen cylinder T0, open the first needle valve 1, the ball valve 3, and turn on the first solenoid valve 5. Adjust the first pressure reducing valve 9 and check the pressure value on the first pressure gauge 8 of the pressure reducing valve. Output the pressure to the required pressure value for the test, set the pressure to 5 MPa, adjust the first flow meter 21 to the set value, turn on the second solenoid valve 18, open the second needle valve 22 and the bottle mouth valve of the metal hydride hydrogen storage bottle S0, and charge the metal hydride hydrogen storage bottle S0 with hydrogen until the hydrogen charging pressure reaches 5 MPa. Keep the pressure constant for 5 hours to complete the hydrogen charging. Then, close the bottle mouth valve of the metal hydride hydrogen storage bottle S0, the second needle valve 22, the second solenoid valve 18, the first solenoid valve 5, the ball valve 3, the first needle valve 1, and the valve of the high-pressure hydrogen cylinder T0 in sequence.

[0069] In step S3, the metal hydride hydrogen storage bottle group unit is emptied using the emptying pipeline. Among them, the emptying process for Branch 1 is as follows: Open the bottle mouth valve of the metal hydride hydrogen storage bottle S2, the second needle valve 24, the second solenoid valve 10, and the fourth needle valve 30 in sequence. When the value displayed by the second pressure sensor 11 is close to the atmospheric pressure, close the fourth needle valve 30. Open the third needle valve 27 and the vacuum pump 29 until the pressure value displayed by the second pressure sensor 11 drops to 0.01 MPa, and the emptying is completed. Then, close the vacuum pump 29, the third needle valve 27, the second solenoid valve 10, the second needle valve 24, and the bottle mouth valve of the metal hydride hydrogen storage bottle S2 in sequence.

[0070] The emptying process for Branch 2 is as follows: Open the bottle mouth valve of the metal hydride hydrogen storage bottle S1, the second needle valve 23, the second solenoid valve 14, and the fourth needle valve 30 in sequence. When the value displayed by the second pressure sensor 15 is close to the atmospheric pressure, close the fourth needle valve 30. Open the third needle valve 27 and the vacuum pump 29 until the pressure value displayed by the second pressure sensor 15 drops to 0.01 MPa, and the emptying is completed. Then, close the vacuum pump 29, the third needle valve 27, the second solenoid valve 14, the second needle valve 23, and the bottle mouth valve of the metal hydride hydrogen storage bottle S1 in sequence.

[0071] The evacuation process for branch 3 is as follows: successively open the bottle valve of the hydrogen storage bottle S0, the second needle valve 22, the second solenoid valve 18, and the fourth needle valve 30. When the value shown by the second pressure sensor 19 is close to the atmospheric pressure, close the fourth needle valve 30. Open the third needle valve 27 and the vacuum pump 29 until the pressure value shown by the second pressure sensor 19 drops to 0.01 MPa, then the evacuation ends. Successively close the vacuum pump 29, the third needle valve 27, the second solenoid valve 18, the second needle valve 22, and the bottle valve of the metal hydride hydrogen storage bottle S0.

[0072] Step S4: Activate the metal hydride hydrogen storage bottle group unit. Repeat step S1 (vacuum pumping), step S2 (hydrogen filling), and step S3 (evacuation) more than twice until the metal hydride hydrogen storage bottle is fully activated, that is, the hydrogen storage bottle can provide the maximum hydrogen volume.

[0073] Step S5: Conduct a flow rate detection on the metal hydride hydrogen storage bottle group unit after activation. The flow rate detection method for branch 1 is as follows: Open the bottle valve of the metal hydride hydrogen storage bottle S2, open the second needle valve 24, set the flow rate value of the first flow meter 13, for example, the set value is 2 L / min. Open the second solenoid valve 10, open the fourth needle valve 30, observe the pressure value of the second pressure gauge 12 and the flow rate value of the first flow meter 13. When the flow rate value drops to 80% of the set value (i.e., 1.6 L / min), stop recording the data. The cumulative hydrogen release flow rate of the metal hydride hydrogen storage tank S2 can be obtained from the first flow meter 13. After the flow rate data test is completed, close the fourth needle valve 30, the second solenoid valve 10, the second needle valve 24, and the bottle valve of the metal hydride hydrogen storage bottle S2, and turn off the temperature control unit of the metal hydride hydrogen storage bottle.

[0074] The flow rate detection method for branch 2 is as follows: Open the bottle valve of the metal hydride hydrogen storage bottle S1, open the second needle valve 23, set the flow rate value of the first flow meter 17, for example, the set value is 2 L / min. Open the second solenoid valve 14, open the fourth needle valve 30, observe the pressure value of the second pressure gauge 16 and the flow rate value of the first flow meter 17. When the flow rate value drops to 80% of the set value (i.e., 1.6 L / min), stop recording the data. The cumulative hydrogen release flow rate of the metal hydride hydrogen storage tank S1 can be obtained from the first flow meter 17. After the flow rate data test is completed, close the fourth needle valve 30, the second solenoid valve 14, the second needle valve 23, and the bottle valve of the metal hydride hydrogen storage bottle S1, and turn off the temperature control unit of the metal hydride hydrogen storage bottle.

[0075] The flow detection method for branch 3 is specifically as follows: Open the bottle mouth valve of the metal hydride hydrogen storage bottle S0, open the second needle valve 22, set the flow value of the first flowmeter 21, for example, if the set value is 2 L / min, open the second solenoid valve 18, open the fourth needle valve 30, observe the pressure value of the second pressure gauge 20 and the flow value of the first flowmeter 21. When the flow value drops to 80% of the set value (i.e., 1.6 L / min), stop recording the data. The cumulative hydrogen release flow of the metal hydride hydrogen storage tank S0 can be obtained from the first flowmeter 21. After the flow data test is completed, close the fourth needle valve 30, the second solenoid valve 18, the second needle valve 22 and the bottle mouth valve of the metal hydride hydrogen storage bottle S0, and turn off the temperature control unit of the metal hydride hydrogen storage bottle.

[0076] Step S6: Use the hydrogen release pipeline to perform hydrogen release treatment on the metal hydride hydrogen storage bottle group unit and release hydrogen into the mixing chamber of the mixed gas delivery pipeline. Among them, the treatment method for branch 3 is specifically as follows: At this time, the metal hydride hydrogen storage bottle S0 at the end of branch 3 is connected to the start end of the hydrogen release pipeline. Open the bottle mouth valve of the metal hydride hydrogen storage bottle S0 and the fifth needle valve 32 in sequence. The second flowmeter 33 releases hydrogen to the mixing chamber T4 at the set flow value. Keep releasing hydrogen for 30 minutes until the hydrogen release ends. Then, close the fifth needle valve 32 and the bottle mouth valve of the metal hydride hydrogen storage bottle S0 in sequence.

[0077] The hydrogen release treatment method for branch 1 is specifically as follows: At this time, the metal hydride hydrogen storage bottle S2 at the end of branch 1 is connected to the start end of the hydrogen release pipeline. Open the bottle mouth valve of the metal hydride hydrogen storage bottle S2 and the fifth needle valve 32 in sequence. The second flowmeter 33 releases hydrogen to the mixing chamber T4 at the set flow value. Keep releasing hydrogen for 30 minutes until the hydrogen release ends. Then, close the fifth needle valve 32 and the bottle mouth valve of the metal hydride hydrogen storage bottle S2 in sequence.

[0078] The hydrogen release treatment method for branch 2 is specifically as follows: At this time, the metal hydride hydrogen storage bottle S1 at the end of branch 2 is connected to the start end of the hydrogen release pipeline. Open the bottle mouth valve of the metal hydride hydrogen storage bottle S1 and the fifth needle valve 32 in sequence. The second flowmeter 33 releases hydrogen to the mixing chamber T4 at the set flow value. Keep releasing hydrogen for 30 minutes until the hydrogen release ends. Then, close the fifth needle valve 32 and the bottle mouth valve of the metal hydride hydrogen storage bottle S1 in sequence.

[0079] Step S7: Use the oxygen supply pipeline to supply oxygen to the mixing chamber of the mixed gas delivery pipeline to obtain a hydrogen-oxygen mixed gas. The specific operation is to open the bottle mouth valve of the oxygen cylinder T3 and the sixth needle valve 34 in sequence. The second pressure reducing valve 35 reduces the pressure to 2 MPa. The third flowmeter 36 releases oxygen to the mixing chamber T4 at the set flow value. Keep supplying oxygen for 30 minutes until the oxygen supply ends. Then, close the sixth needle valve 34 and the bottle mouth valve of the oxygen cylinder T3 in sequence.

[0080] Step S8: Transport the hydrogen-oxygen mixture through the mixture gas delivery pipeline. The specific operation is as follows: successively open the bottle valve of the mixing chamber T4 and the seventh needle valve 37, reduce the pressure of the third pressure reducing valve 38 to 2 MPa, and the fourth flowmeter 39 releases hydrogen to the suction hood 40 according to the set flow value, continuously transport the hydrogen-oxygen mixture for 30 minutes. After the mixture breathing ends, then close the seventh needle valve 37 and the bottle valve of the mixing chamber T4.

[0081] When different proportions of the mixture gas are required, as described in step S8, the second flowmeter 33 of the hydrogen release pipeline and the third flowmeter 36 of the oxygen supply pipeline can be controlled and adjusted to achieve precise control of the mixture gas; when only pure hydrogen supply is needed, close the oxygen supply pipeline and only open the hydrogen release pipeline; when the hydrogen supply is insufficient, as described in step S2, open the hydrogen filling pipeline to fill the metal hydride hydrogen storage bottle with hydrogen; when in first aid or in the wild, only the spare metal hydride hydrogen storage bottle, oxygen cylinder and part of the mixture gas pipeline can be carried, as Figure 1 shown by the dashed block diagram in the figure, to ensure hydrogen-oxygen supply and hydrogen inhalation.

[0082] The above are only the preferred embodiments of the present invention and are not used to limit the present invention. For those skilled in the art, various modifications and changes can be made to the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A hydrogen or hydrogen-oxygen mixed gas storage and supply device, characterized in that, The storage and supply device includes a hydrogen supply pipeline, an oxygen supply pipeline, and a mixed gas transmission pipeline. Among them, the hydrogen supply pipeline includes: a vacuum pumping pipeline, an evacuation pipeline, a hydrogen filling pipeline, and a hydrogen discharging pipeline. Among them, the hydrogen filling pipeline includes: a hydrogen filling main pipeline, and a metal hydride hydrogen storage bottle pipeline connected to the end of the hydrogen filling main pipeline. A metal hydride hydrogen storage bottle group unit is arranged at the end of the metal hydride hydrogen storage bottle pipeline. The hydrogen filling pipeline is used for hydrogen storage and providing hydrogen; the hydrogen discharging pipeline has its starting end connected to the metal hydride hydrogen storage bottle group unit and its ending end connected to the mixed gas transmission pipeline; one end of the vacuum pumping pipeline is connected to the starting end of the metal hydride hydrogen storage bottle pipeline and is used for evacuating the metal hydride hydrogen storage bottle group unit; one end of the evacuation pipeline is connected to the starting end of the metal hydride hydrogen storage bottle pipeline and is used for discharging the gas in the metal hydride hydrogen storage bottle group unit; the ending end of the oxygen supply pipeline is connected to the mixed gas transmission pipeline; a high-pressure hydrogen storage bottle group is arranged at the starting end of the hydrogen filling main pipeline. A first needle valve, a ball valve, a filter, a first solenoid valve, a first pressure sensor, a check valve, a first pressure gauge, and a first pressure reducing valve are successively arranged on the hydrogen filling main pipeline from its starting end; a second solenoid valve, a second pressure sensor, a second pressure gauge, a first flowmeter, and a second needle valve are successively arranged on the metal hydride hydrogen storage bottle pipeline from its starting end. The second needle valve is located at the outlet of the metal hydride hydrogen storage bottle group unit and is used for opening or closing the metal hydride hydrogen storage bottle group unit; The pipeline between the first flowmeter and the second needle valve is an elastic connecting pipeline; the metal hydride hydrogen storage bottle group unit includes a plurality of metal hydride hydrogen storage bottles. A plurality of metal hydride hydrogen storage bottle pipelines are correspondingly arranged. The plurality of metal hydride hydrogen storage bottle pipelines are arranged in parallel, and one of the metal hydride hydrogen storage bottles is correspondingly arranged at the end of each metal hydride hydrogen storage bottle pipeline; one of the plurality of metal hydride hydrogen storage bottles is connected to the starting end of the hydrogen discharging pipeline; an oxygen cylinder is arranged at the starting end of the oxygen supply pipeline. A sixth needle valve, a second pressure reducing valve, and a third flowmeter are successively arranged on the oxygen supply pipeline from its starting end; a mixing chamber is arranged at the starting end of the mixed gas transmission pipeline. The mixing chamber is connected to the ending end of the oxygen supply pipeline and is connected to the ending end of the hydrogen discharging pipeline, and is used for receiving the gases from the hydrogen discharging pipeline and the oxygen supply pipeline and mixing them; a seventh needle valve, a third pressure reducing valve, and a fourth flowmeter are successively arranged on the mixed gas transmission pipeline from its starting end. An air suction hood is arranged at the ending end of the mixed gas transmission pipeline.

2. The hydrogen or hydrogen-oxygen mixed gas storage and supply device according to claim 1, wherein the high-pressure hydrogen storage bottle group includes two high-pressure hydrogen storage bottles arranged in parallel. There are two first needle valves, and the two first needle valves are correspondingly arranged at the outlets of the two high-pressure hydrogen storage bottles.

3. The hydrogen or hydrogen-oxygen mixed gas storage and supply device according to claim 2, wherein, the other end of the vacuum pumping pipeline is provided with a vacuum pump. A vacuum gauge, a third needle valve, a third pressure gauge, and a safety valve are successively arranged on the vacuum pumping pipeline from the vacuum pump end.

4. The hydrogen or hydrogen-oxygen mixed gas storage and supply device according to claim 3, characterized in that, A flame arrester is arranged at the other end of the exhaust pipeline, and a fourth needle valve is also arranged on the exhaust pipeline.

5. The hydrogen or hydrogen-oxygen mixed gas storage and supply device according to claim 1, characterized in that, The hydrogen discharge pipeline is provided with a fifth needle valve and a second flow meter in sequence from its starting end. The fifth needle valve is provided at the outlet of the metal hydride hydrogen storage bottle group unit or adjacent to the outlet.

6. A method for using a hydrogen or hydrogen-oxygen mixed gas storage and supply device according to any one of claims 1-5, characterized in that, The method of use comprises the following steps: Step S1, using a vacuum pipeline to vacuum the metal hydride hydrogen storage bottle group unit; Step S2, using a hydrogen filling pipeline to perform hydrogen filling treatment on the metal hydride hydrogen storage bottle group unit; Step S3, using an emptying pipeline to empty the metal hydride hydrogen storage bottle group unit; Step S4, repeating step S1, step S2 and step S3, and cycling for more than two times, to activate the metal hydride hydrogen storage bottle group unit; Step S5, performing flow detection on the metal hydride hydrogen storage bottle group unit after the activation treatment; Step S6, using a hydrogen discharge pipeline to discharge hydrogen from the metal hydride hydrogen storage bottle group unit, and discharge hydrogen into the gas mixing chamber of the mixed gas delivery pipeline; Step S7, using an oxygen supply pipeline to transport oxygen to a gas mixing chamber of a mixed gas transport pipeline to obtain a hydrogen-oxygen mixed gas; Step S8, using a mixed gas delivery pipeline to deliver the hydrogen-oxygen mixed gas.

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