CN111591956A - Portable controllable hydrogen production device - Google Patents

Portable controllable hydrogen production device Download PDF

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Publication number
CN111591956A
CN111591956A CN202010625860.XA CN202010625860A CN111591956A CN 111591956 A CN111591956 A CN 111591956A CN 202010625860 A CN202010625860 A CN 202010625860A CN 111591956 A CN111591956 A CN 111591956A
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water inlet
shell
double
air outlet
layer funnel
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CN111591956B (en
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邹美帅
张晓冬
李晓东
王硕
王潇萱
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Beijing Institute of Technology BIT
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Beijing Institute of Technology BIT
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    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01BNON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B3/00Hydrogen; Gaseous mixtures containing hydrogen; Separation of hydrogen from mixtures containing it; Purification of hydrogen
    • C01B3/02Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen
    • C01B3/06Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen by reaction of inorganic compounds containing electro-positively bound hydrogen, e.g. water, acids, bases, ammonia, with inorganic reducing agents
    • C01B3/08Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen by reaction of inorganic compounds containing electro-positively bound hydrogen, e.g. water, acids, bases, ammonia, with inorganic reducing agents with metals
    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01BNON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B2203/00Integrated processes for the production of hydrogen or synthesis gas
    • C01B2203/02Processes for making hydrogen or synthesis gas
    • C01B2203/025Processes for making hydrogen or synthesis gas containing a partial oxidation step
    • C01B2203/0255Processes for making hydrogen or synthesis gas containing a partial oxidation step containing a non-catalytic partial oxidation step
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/30Hydrogen technology
    • Y02E60/36Hydrogen production from non-carbon containing sources, e.g. by water electrolysis

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Inorganic Chemistry (AREA)
  • Fuel Cell (AREA)

Abstract

The invention discloses a portable controllable hydrogen production device, which relates to the technical field of hydrogen production and comprises a main shell, wherein the main shell comprises an inner shell and an outer shell, an accommodating cavity is arranged between the inner shell and the outer shell, and a reaction chamber is arranged in the inner shell; the top of the reaction chamber is provided with a double-layer hopper bin, and the top of the double-layer hopper bin is provided with a feed inlet; the outer layer funnel is fixed inside the inner shell, and the inner layer funnel is connected with an electric control device through a connecting rod; the inner shell is provided with a first air outlet, and the outer shell is provided with a second air outlet; the intracavity holds and is equipped with the inlet tube, and the one end of inlet tube is first water inlet, and the other end is the second water inlet, and outside first water inlet stretched out the shell, first water inlet department was provided with the valve, second water inlet and interior casing intercommunication. The invention has stable hydrogen flow output, can recycle reaction products, has simple operation, convenient carrying and disassembly and high safety, and can be applied to on-site real-time hydrogen production and fuel cell power generation.

Description

Portable controllable hydrogen production device
Technical Field
The invention relates to the technical field of hydrogen preparation, in particular to a portable controllable hydrogen production device.
Background
Due to exhaustion of energy and environmental pollution caused by fossil fuels, people have become increasingly keen about clean energy. The combustion heat value of the hydrogen energy is high, and the product is pollution-free, so that the hydrogen energy is a clean and sustainable energy. The existing hydrogen production methods mainly include hydrogen production by reforming fossil fuel, hydrogen production by electrolyzing water, hydrogen production by photohydrolysis, hydrogen production by biology, hydrogen production by plasma, etc., however, the hydrogen production methods have some disadvantages, such as: environmental pollution, high preparation cost, immature technology, impure products and the like.
At present, the storage and transportation of hydrogen gas is also a major problem for hydrogen energy utilization. The storage modes of hydrogen mainly include high-pressure hydrogen storage, low-temperature liquefied hydrogen storage, physical and chemical adsorption hydrogen storage, metal hydride hydrogen storage and the like. However, these hydrogen storage methods have problems of low safety factor, high cost, etc., and cannot solve the problem of hydrogen for on-site real-time hydrogen production.
In order to solve the above problems and achieve effective utilization of hydrogen energy, metal/water reaction has been proposed to produce hydrogen, such as magnesium, aluminum/water hydrogen production, and the like. The metal magnesium and aluminum have high content and high energy density in the earth crust, so the metal magnesium and aluminum can be used as an energy storage material to react with water, and the on-site real-time hydrogen production is realized. However, a layer of oxide film exists on the surface of the aluminum and the magnesium, which prevents further reaction. At present, people activate the alkaline solution by adopting methods such as reaction with the alkaline solution, alloying, mechanical ball milling and the like, but the reaction rate cannot be further controlled, so that the research on a hydrolysis hydrogen production device for controlling the metal/water reaction has important significance.
The patent application with publication number CN105366639A provides a portable hydrogen production device with automatic control of aluminum/water reaction, but the device is complicated to operate, cannot achieve the purpose of stable hydrogen transportation, and is relatively large in size and inconvenient to carry. The patent application with the publication number of CN101786603A provides a hydrolysis hydrogen production device, which has a simple structure and a controllable hydrogen production rate, but the device does not realize the integration of the structure, has a dispersed structure, is inconvenient to carry, and cannot realize the on-site real-time hydrogen production. The patent application with the publication number of CN103482567A provides a continuous hydrogen production device, but the device is suitable for large-scale hydrogen production, and the controllability of the hydrogen production rate is difficult to realize, so the device cannot be directly applied to on-site real-time hydrogen production and fuel cells.
Accordingly, there is a need to provide a portable and controllable hydrogen generation apparatus that solves the above-mentioned problems of the prior art.
Disclosure of Invention
The invention aims to provide a portable controllable hydrogen production device, which solves the problems in the prior art, has stable hydrogen flow output, can recycle reaction products, is simple to operate, is convenient to carry and disassemble, has high safety, and can be applied to on-site real-time hydrogen production and fuel cell power generation.
In order to achieve the purpose, the invention provides the following scheme: the invention provides a portable controllable hydrogen production device, which comprises a main shell, wherein the main shell is provided with two layers and comprises an inner shell and an outer shell, an accommodating cavity is arranged between the inner shell and the outer shell, and a reaction chamber is arranged in the inner shell; the top of the reaction chamber is provided with a double-layer funnel bin, and the double-layer funnel bin is used for placing raw materials to be reacted; the top of the double-layer hopper bin is provided with a feed inlet; the double-layer funnel bin comprises an inner layer funnel and an outer layer funnel, the outer layer funnel is fixed inside the inner shell, the inner layer funnel is connected with an electric control device through a connecting rod and used for controlling the powder output of the double-layer funnel bin, and the electric control device is connected with a main switch; the inner shell is provided with a first air outlet, and the outer shell is provided with a second air outlet; the holding cavity is internally provided with a water inlet pipe, one end of the water inlet pipe is a first water inlet, the other end of the water inlet pipe is a second water inlet, the first water inlet extends out of the outer shell, a valve is arranged at the position of the first water inlet, and the second water inlet is communicated with the inner shell.
Preferably, the main shell is a cylindrical double-layer structure, and the thickness of the accommodating cavity is 10 mm.
Preferably, the water inlet pipe is a spiral water inlet pipe.
Preferably, the first water inlet is located at the lower part of the outer shell, the second water inlet is located at the upper part of the inner shell, and the second water inlet is higher than the first water inlet.
Preferably, a filter sponge is further arranged in the accommodating cavity and located between the first air outlet and the second air outlet.
Preferably, the first air outlet is higher than the second air outlet, and the first air outlet and the second air outlet are respectively located above and below the filter sponge.
Preferably, the diameter of the double-layer hopper bin is 70mm, and the height of the double-layer hopper bin is 60 mm.
Preferably, a quartz glass window is arranged on the main shell and used for observing the height of the reaction liquid in the reaction chamber and the reaction process.
Preferably, the raw materials to be reacted are metal powder.
Preferably, the metal powder is magnesium powder or aluminum powder.
Compared with the prior art, the invention has the following technical effects:
(1) the hydrogen flow output of the invention is stable. The powder output amount is controlled by controlling the rotating speed of the inner layer funnel of the double-layer funnel stock bin, and finally the effect of controlling the metal/water reaction rate is achieved;
(2) the invention has simple structure and convenient carrying, belongs to a small hydrogen production device, can repeatedly add water and feed materials through the water adding port and the feed port, can be repeatedly utilized, has simple operation and convenient carrying, and can be applied to various occasions;
(3) the method has the advantages of environmental friendliness, high energy density of metal magnesium and aluminum, purer hydrogen generated by reaction with water, no pollution of products and capability of recycling;
(4) according to the invention, water is filled in the reaction chamber through the first water inlet, the second water inlet and the spiral water inlet pipe, then aluminum powder or magnesium powder is added in the double-layer funnel bin, the main switch is turned on, and the magnesium powder or the aluminum powder in the double-layer funnel bin can uniformly fall into the reaction chamber of the device to react with water to generate hydrogen, so that the problems of hydrogen storage, transportation and incapability of producing hydrogen in real time are solved;
meanwhile, the invention controls the rotating speed of the inner layer of the double-layer funnel bin through the electric control device, thereby controlling the powder output amount of the double-layer funnel bin and achieving the purpose of controlling the metal/water reaction rate.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 is a schematic diagram of a portable controllable hydrogen production apparatus;
in the figure, 1-a first water inlet, 2-a valve, 3-a quartz glass window, 4-a second water inlet, 5-a double-layer funnel bin, 6-a charging opening, 7-a connecting rod, 8-a spiral water inlet pipe, 9-a second air outlet, 10-a filtering sponge, 11 a first air outlet, 12-an electric control device and 13-a main switch.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
The invention provides a portable controllable hydrogen production device, which comprises a main switch 13, an electric control device 12, a double-layer funnel bin 5, a spiral water inlet pipe 8 and a quartz glass window 3; the device main shell is a cylindrical hollow double-layer structure integrally and comprises an inner shell and an outer shell, an accommodating cavity is arranged between the inner shell and the outer shell, the thickness of the accommodating cavity is about 10mm, and a reaction chamber is arranged in the inner shell; the containing cavity is used for passing hydrogen and is provided with a spiral water inlet pipe 8.
The first water inlet 1 on the outer shell is connected with the second water inlet 4 on the inner shell through a spiral water inlet pipe 8, and a valve 2 is arranged on the first water inlet 1. Meanwhile, the inner shell is provided with a first gas outlet 11, and the outer shell is provided with a second gas outlet 9 which can be connected with other hydrogen storage devices.
Can place the metal powder in double-deck funnel feed bin 5, and the inlayer funnel of double-deck funnel feed bin 5 is connected with electric control device 12 (electric control device can select as required, if can select gear motor etc.) through connecting rod 7, controls double-deck funnel feed bin 5's play powder volume, and then controls its hydrogen production rate. Meanwhile, the reaction chamber is positioned in the water environment of the spiral water inlet pipe 8, can be rapidly cooled, reduces a large amount of reaction heat released in the metal/water reaction process, and stabilizes the hydrogen production rate.
In the present invention, the valve 2 is opened to allow water to enter the reaction chamber of the apparatus through the first water inlet 1, the second water inlet 4 and the spiral water inlet pipe 8, and the valve 2 is closed to allow a part of the water to remain in the spiral water inlet pipe 8. Then, metal powder is added into a double-layer hopper bin 5 through a feed opening 6. And when the main switch 13 is turned on, the electric control device 12 can control the rotation of the inner layer of the double-layer funnel bin 5, so that the metal powder falls into the reaction chamber of the device at a constant speed, and the metal powder is contacted with water to react to generate hydrogen.
In the invention, the spiral water inlet pipe 8 mainly plays three roles, namely, water is introduced into a reaction chamber of the device through the first water inlet 1 and the second water inlet 4; secondly, the generated hydrogen is cooled; thirdly, a large amount of reaction heat released by the metal/water reaction in the reaction chamber of the device is reduced, thereby stabilizing the hydrogen production rate.
In the invention, the double-layer funnel bin 5 consists of two layers of porous funnels, the outer layer funnel is fixed in the device, the inner layer funnel is connected with the electric control device 12 through the connecting rod 7, the electric control device 12 can control the rotating speed of the inner layer funnel of the double-layer funnel bin 5 to enable the inner layer funnel to rotate at a constant speed, so that the closing and closing of the outer layer circular hole and the inner layer circular hole are controlled, the powder output amount of the inner layer funnel is controlled, and the stability of the hydrogen production rate is ensured.
In the present invention, the quartz glass window 3 is provided on the main housing for observing the height of the reaction liquid and the metal/water reaction process in the reaction chamber of the apparatus, and specifically, the quartz glass windows 3 are correspondingly provided at the same positions on the inner housing and the outer housing so that the inside of the reaction chamber can be observed therebetween.
In the invention, the first water inlet 1 is positioned at the lower part of the outer shell, the second water inlet 4 is positioned at the upper part of the inner shell, and the second water inlet 4 is higher than the first water inlet 1, so that the spiral water inlet pipe 8 is always in a state of being full of water.
In the invention, a filter sponge 10 is further arranged in the accommodating cavity, and the filter sponge 10 is positioned between the first air outlet 11 and the second air outlet 9; preferably, the first air outlet 11 is higher than the second air outlet 9, and the first air outlet 11 and the second air outlet 9 are respectively located above and below the filter sponge 10; the filtering sponge 10 is arranged, and can purify the generated hydrogen.
In the invention, the diameter of the double-layer funnel bin is 70mm, and the height of the double-layer funnel bin is 60 mm.
In the invention, the used metal powder is aluminum powder or magnesium powder, the energy density is high, the reserves in the crust are relatively abundant, the price is low, the generated hydrogen is relatively pure, and the invention can be applied to on-site real-time hydrogen production and fuel cell power generation.
Example one
The hydrogen production process in this example is as follows: 216g of aluminum powder is weighed, then the weighed aluminum powder is added into the double-layer hopper bin 5 through the feed opening 6, the feed opening 6 is screwed down, water is introduced into the reaction chamber through the first water inlet 1, the spiral water inlet pipe 8 and the second water inlet 4, and the valve 2 is closed. Open master switch 13, the rotation of 5 inlayer funnels of double-deck funnel feed bin is controlled to electric control device 12, makes the aluminite powder fall into the reacting chamber uniformly, and the reaction takes place with water contact, and the hydrogen that produces enters into through first gas outlet 11 and holds the chamber, cools off and purifies through spiral inlet tube 8 and the filtration sponge 10 that holds in the chamber, then supplies with other devices through second gas outlet 9 and uses.
Meanwhile, the rotating speed of the inner layer funnel of the double-layer funnel bin 5 is controlled by the electric control device 12, and then the closing and closing of the round holes of the inner layer funnel and the outer layer funnel of the double-layer funnel bin 5 are controlled, so that the powder output of the double-layer funnel bin 5 is controlled, the aim of controlling the aluminum/water reaction rate is finally achieved, and the generated hydrogen flow rate is relatively stable.
216g of aluminum powder reacted with water to produce about 240L of hydrogen gas and the aluminum/water hydrogen production rate remained relatively stable at all times.
Example two
The hydrogen production process in this example is as follows: 216g of aluminum powder is weighed, then the weighed aluminum powder is added into the double-layer hopper bin 5 through the feed opening 6, the feed opening 6 is screwed down, water is introduced into the reaction chamber through the first water inlet 1, the spiral water inlet pipe 8 and the second water inlet 4, and the valve 2 is closed. The main switch 13 is turned on, after the inner layer funnel and the outer layer funnel of the double-layer funnel bin 5 are overlapped, the main switch 13 is turned off, so that the aluminum powder continuously falls into the reaction chamber of the device, contacts with water to react, and finally generates about 240L hydrogen, but the hydrogen production rate cannot be kept stable, and the state of increasing the hydrogen first and then slowing down is presented.
EXAMPLE III
This hydrogen production process of this example is as follows: weighing 144g of magnesium powder, adding the weighed magnesium powder into a double-layer funnel bin 5 through a feed inlet 6, screwing the feed inlet 6, introducing water into the reaction chamber through a first water inlet 1, a spiral water inlet pipe 8 and a second water inlet 4, and closing a valve 2. The main switch 13 is turned on, the electric control device 12 controls the inner layer funnel of the double-layer funnel bin 5 to rotate, so that magnesium powder uniformly falls into the reaction chamber, contacts with water to react, about 120L of hydrogen is finally generated, and the hydrogen production rate of magnesium/water is always kept stable by intermittently adjusting the rotating speed of the double-layer funnel bin.
Example four
The hydrogen production process in this example is as follows: weighing 144g of magnesium powder, adding the weighed magnesium powder into a double-layer funnel bin 5 through a feed inlet 6, screwing the feed inlet 6, introducing water into the reaction chamber through a first water inlet 1, a spiral water inlet pipe 8 and a second water inlet 4, and closing a valve 2. The main switch 13 is turned on, and after the inner layer and the outer layer of the double-layer funnel bin 5 coincide with each other, the main switch 13 is turned off, so that magnesium powder continuously falls into the reaction chamber to be contacted with water for reaction, and finally about 120L of hydrogen is generated, but the hydrogen speed of magnesium/water cannot be kept stable, and the magnesium/water is in a state of being increased in speed and then being slowed down.
The principle and the implementation mode of the invention are explained by applying a specific example, and the description of the embodiment is only used for helping to understand the method and the core idea of the invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, the specific embodiments and the application range may be changed. In view of the above, the present disclosure should not be construed as limiting the invention.

Claims (10)

1. A portable controllable hydrogen plant is characterized in that: the reactor comprises a main shell, wherein the main shell is provided with double layers and comprises an inner shell and an outer shell, an accommodating cavity is arranged between the inner shell and the outer shell, and a reaction chamber is arranged in the inner shell; the top of the reaction chamber is provided with a double-layer funnel bin, and the double-layer funnel bin is used for placing raw materials to be reacted; the top of the double-layer hopper bin is provided with a feed inlet; the double-layer funnel bin comprises an inner layer funnel and an outer layer funnel, the outer layer funnel is fixed inside the inner shell, the inner layer funnel is connected with an electric control device through a connecting rod and used for controlling the powder output of the double-layer funnel bin, and the electric control device is connected with a main switch; the inner shell is provided with a first air outlet, and the outer shell is provided with a second air outlet; the holding cavity is internally provided with a water inlet pipe, one end of the water inlet pipe is a first water inlet, the other end of the water inlet pipe is a second water inlet, the first water inlet extends out of the outer shell, a valve is arranged at the position of the first water inlet, and the second water inlet is communicated with the inner shell.
2. The portable controllable hydrogen generation apparatus of claim 1, wherein: the main casing body is for being cylindric bilayer structure, the thickness that holds the chamber is 10 mm.
3. The portable controllable hydrogen generation apparatus of claim 1, wherein: the water inlet pipe is a spiral water inlet pipe.
4. The portable controllable hydrogen generation apparatus of claim 3, wherein: the first water inlet is located at the lower part of the outer shell, the second water inlet is located at the upper part of the inner shell, and the second water inlet is higher than the first water inlet.
5. The portable controllable hydrogen generation apparatus of claim 1, wherein: the holding cavity is also internally provided with a filtering sponge which is positioned between the first air outlet and the second air outlet.
6. The portable controllable hydrogen generation apparatus of claim 5, wherein: the first air outlet is higher than the second air outlet, and the first air outlet and the second air outlet are respectively positioned above and below the filtering sponge.
7. The portable controllable hydrogen generation apparatus of claim 1, wherein: the diameter of the double-layer funnel bin is 70mm, and the height of the double-layer funnel bin is 60 mm.
8. The portable controllable hydrogen generation apparatus of claim 1, wherein: the main shell is provided with a quartz glass window for observing the height and the reaction process of the reaction liquid in the reaction chamber.
9. The portable controllable hydrogen generation apparatus of claim 1, wherein: the raw materials to be reacted are metal powder.
10. The portable controllable hydrogen generation apparatus of claim 9, wherein: the metal powder is magnesium powder or aluminum powder.
CN202010625860.XA 2020-07-01 2020-07-01 Portable controllable hydrogen production device Expired - Fee Related CN111591956B (en)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4988486A (en) * 1985-08-02 1991-01-29 The Boeing Company Hydrogen generator
CN104276541A (en) * 2014-09-15 2015-01-14 中南大学 Controllable hydrogen device based on aluminum alloy-water reaction
CN208948844U (en) * 2018-08-31 2019-06-07 深圳市雄韬电源科技股份有限公司 The controllable continuous hydrolysis hydrogen generating system of hydrogen production rate
CN110207202A (en) * 2018-06-06 2019-09-06 华帝股份有限公司 Range hood with adjustable air inlet area and control method thereof
CN111302303A (en) * 2020-04-14 2020-06-19 北京理工大学 Portable hydrogen production device applied to fuel cell

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4988486A (en) * 1985-08-02 1991-01-29 The Boeing Company Hydrogen generator
CN104276541A (en) * 2014-09-15 2015-01-14 中南大学 Controllable hydrogen device based on aluminum alloy-water reaction
CN110207202A (en) * 2018-06-06 2019-09-06 华帝股份有限公司 Range hood with adjustable air inlet area and control method thereof
CN208948844U (en) * 2018-08-31 2019-06-07 深圳市雄韬电源科技股份有限公司 The controllable continuous hydrolysis hydrogen generating system of hydrogen production rate
CN111302303A (en) * 2020-04-14 2020-06-19 北京理工大学 Portable hydrogen production device applied to fuel cell

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