A portable reaction-controllable solid fuel cell

Abstract

A portable reaction-controlled solid fuel cell of the present invention comprises a hydrogen generation system, a gas filtering device and a fuel cell system; the hydrogen generation system comprises a reactor, a filter screen is suspended in the reactor, a pair of porous aluminum rods are arranged in the filter screen, and the side wall of the reactor is connected to the gas filtering device through a one-way air inlet valve; the gas filtering device comprises a U-shaped drying tube, and the U-shaped drying tube is filled with a desiccant; the fuel cell system comprises a hydrogen storage tank, an exchange membrane fuel cell and an electric storage regulator from top to bottom, the hydrogen storage tank is connected to the U-shaped drying tube through a one-way air outlet valve, and the one-way air outlet valve and the one-way air inlet valve are respectively located on both sides of the U-shaped drying tube; the hydrogen storage tank is provided with an air charging valve, and the electric storage regulator is provided with a USB power transmission interface. The present invention is simple to operate, easy to carry, can control the hydrogen generation reaction rate, can continuously output a stable voltage for a long time, and has good overall safety performance.

Description

Technical Field

[0001] The invention belongs to the technical field of new energy fuel cells, and in particular relates to a portable reaction-controllable solid fuel cell. Background Art

[0002] With the rapid improvement of the quality of life of the people in recent years, most people carry a variety of portable electronic products, such as mobile phones, smart watches, electronic cameras, etc. These products are often powered by batteries, but these batteries must rely on the mains to replenish after the power is consumed. The same is true for various types of portable power banks, and the amount of power they can store is relatively limited. If you are outdoors for a long time without a mains power interface (for example, when a natural disaster such as an earthquake occurs, or when performing a long field mission, etc.), it will be difficult for electronic devices to ensure power supply.

[0003] In recent years, fuel cell technology has made rapid progress, and many fuel cell products have moved from the laboratory to commercialization. Among them, the most commonly used are hydrogen-oxygen fuel cells. 2 ) can be produced by the reaction of aluminum (Al) and alkaline solution, and the reaction formula is as follows:

[0004]

[0005] The above process has been confirmed by Korean patent KR10-0803074 and Australian patent AU2008227365 to be able to stably and persistently generate hydrogen. Based on this principle, the applicant invented a portable reaction-controlled solid fuel cell. The battery reaction system integrates a hydrogen generation device and a fuel cell power generation device, which can stably and evenly generate hydrogen for about five hours and can quantitatively provide high-purity hydrogen for hydrogen-oxygen fuel cells. Since the product of hydrogen-oxygen fuel cells is water, it will not pollute the environment or cause a greenhouse effect.

[0006] However, most fuel cells currently have the following shortcomings: 1. Hydrogen-oxygen fuel cells are large in size, heavy in weight, and difficult to carry; 2. The hydrogen generation reaction uses powdered raw materials, the reaction rate cannot be controlled, and it is not easy to control the stop and start of the reaction; 3. The fuel cell reaction rate and power generation voltage are difficult to maintain constant, the safety performance is poor, and the replacement of consumables is more complicated. Summary of the invention

[0007] The technical problem to be solved by the present invention is to provide a portable reaction-controlled solid fuel cell in response to the shortcomings of the background technology. The present invention is simple to operate, easy to carry, can control the hydrogen generation reaction rate, can continuously output a stable voltage for a long time, and has good overall safety performance.

[0008] The present invention adopts the following technical solutions to solve the above technical problems:

[0009] A portable reaction-controllable solid fuel cell, comprising a hydrogen generation system, a gas filtering device and a fuel cell system;

[0010] The hydrogen generation system comprises a reactor with a spiral sealing cover, a filter screen is suspended in the reactor, a pair of porous aluminum rods are arranged in the filter screen, the upper end of the filter screen is connected to the inner wall of the reactor through a filter screen adjustment pulley, and the side wall of the reactor is connected to the gas filtering device through a one-way air inlet valve;

[0011] The gas filtering device comprises a U-shaped drying tube, in which a desiccant is filled;

[0012] The fuel cell system includes a hydrogen storage tank, an exchange membrane fuel cell and an electric storage voltage regulator from top to bottom. The hydrogen storage tank is connected to a U-shaped drying tube via a one-way gas outlet valve. The one-way gas outlet valve and the one-way gas inlet valve are respectively located on both sides of the U-shaped drying tube. An air charging valve is arranged on the hydrogen storage tank, and a USB power transmission interface is arranged on the electric storage voltage regulator.

[0013] Furthermore, a digital pressure gauge is installed on the side wall of the reactor.

[0014] Furthermore, the exchange membrane fuel cell is provided with a ventilation window and an exhaust device.

[0015] Furthermore, the porous aluminum rod is formed by mixing refined aluminum powder, quicklime powder and a reaction catalyst and placing the mixture in a fixed container and pressing the mixture under high pressure.

[0016] Furthermore, the U-shaped drying tube of the gas filtering device is filled with soda lime, glass fiber and cotton.

[0017] Furthermore, the hydrogen storage tank is provided with a hydrogen filling valve for filling with 0.1-1 MPa high-purity hydrogen for standby or emergency use.

[0018] Furthermore, the hydrogen generation system and the gas filtering device, as well as the gas filtering device and the fuel cell system are detachably connected via connecting slide rails.

[0019] Compared with the prior art, the present invention adopts the above technical solution and has the following technical effects:

[0020] The present invention is compact and portable, safe and pollution-free, and can meet the needs of emergency charging of portable electronic products outdoors. The hydrogen generation reaction of this device uses porous compressed aluminum rod raw materials, which can control the reaction rate at any time, and can control the reaction to stop and start. In addition, the hydrogen storage design enables the fuel cell to continuously output a stable voltage. When the reaction raw materials cannot be replenished in time, the spare hydrogen in the hydrogen storage tank can be used for emergency power supply, and it can also be replenished from an external hydrogen source to maintain battery operation. The overall design is divided into three parts: hydrogen generation system, gas filtration device and fuel cell system. Each part can be easily separated, and it is convenient to replace consumables or use it alone. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the first embodiment;

[0022] Figure 2 It is a schematic diagram of the structure of connecting slide rails in embodiment 1.

[0023] In the figure, 1- spiral sealing cover; 2- filter adjustment pulley; 3- drying tube sealing cover; 4- one-way air inlet valve; 5- digital pressure gauge; 6- filter; 7- reactor; 8- porous aluminum rod; 9- water; 10- hydrogen charging valve; 11- hydrogen storage tank; 12- one-way air outlet valve; 13-; U-shaped drying tube; 14- exhaust device; 15- ventilation window; 16- proton exchange membrane fuel cell; 17- power storage stabilizer; 18- USB power transmission interface; 19- connecting rail. DETAILED DESCRIPTION

[0024] The technical solution of the present invention is further described in detail below in conjunction with the accompanying drawings:

[0025] In the description of the present invention, it should be understood that the terms "left side", "right side", "upper part", "lower part" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. "First", "second" and the like do not indicate the importance of the components, and therefore cannot be understood as limiting the present invention. The specific dimensions used in this embodiment are only for illustrating the technical solution, and do not limit the scope of protection of the present invention.

[0026] Embodiment 1

[0027] like Figure 1As shown, a portable reaction-controlled solid fuel cell of the present invention comprises: a hydrogen generation system, a gas filtering device and a fuel cell system; the hydrogen generation system comprises a spiral sealing cover 1, a filter adjustment pulley 2, a one-way air inlet valve 4, a digital pressure gauge 5, a filter 6, a reactor 7, a porous aluminum rod 8, and water 9; the gas filtering device comprises a drying tube sealing cover 3 and a U-shaped drying tube 13; the fuel cell system comprises a hydrogen charging valve 10, a hydrogen storage tank 11, a one-way air outlet valve 12, an exhaust device 14, a ventilation window 15, a proton exchange membrane fuel cell 16, a power storage regulator 17, a USB power transmission interface 18, and a connecting slide rail 19.

[0028] The hydrogen generation system is equipped with a filter adjustment pulley 2, the filter adjustment pulley 2 can manually control the speed and direction, and the central shaft of the filter adjustment pulley 2 can be manually adjusted outside the reactor 7 to adjust the height of the filter 6. The reactor 7 of the hydrogen generation system is provided with a digital pressure gauge 5 for monitoring and controlling the generation rate of hydrogen in the reactor 7. If the hydrogen generation rate is fast, the filter adjustment pulley 2 is adjusted to reduce the length of the filter 6, and the upper end of the porous aluminum rod 8 is separated from the water, and the reaction rate decreases. In particular, the porous aluminum rod 8 is made of refined aluminum powder, quicklime powder and reaction catalyst mixed in a certain ratio, and placed in a fixed container by high pressure pressing.

[0029] The U-shaped drying tube 13 of the gas filtering device is filled with soda lime, glass fiber, cotton and the like. When the desiccant becomes ineffective as the reaction proceeds, the drying tube sealing cover 3 is opened to conveniently replace the contents of the U-shaped drying tube 13 .

[0030] A hydrogen filling valve 10 is provided on the hydrogen storage tank 11 of the fuel cell system for filling high-purity hydrogen with a pressure between 0.1 and 1 MPa for standby or emergency use.

[0031] like Figure 2 As shown, the above three components are connected by a connecting slide rail 19. When each part of the consumables needs to be replaced or used separately, the connecting slide rail 19 can be simply operated to easily separate them.

[0032] During use, firstly, a porous aluminum rod 8 needs to be placed in the reactor 7. The length and quantity of the porous aluminum rod 8 are adjusted according to the reaction requirements (generally, 4 aluminum rods with a length of 10 cm and a cross section with a radius of 1 cm are placed), and then a proper amount of water is added to immerse the rod and cover it with a screw seal cover 1. When the digital pressure gauge 5 shows a reading of about 0.5 MPa (0.1-1 MPa), the one-way air inlet valve 4 is opened (during this reaction time, the pre-installed hydrogen in the hydrogen storage tank 11 can generate electricity normally). The wet hydrogen enters from the left end of the U-shaped drying tube 13. When the pressure of the hydrogen storage tank 11 is lower than the reading of the digital pressure gauge 5, the dry hydrogen enters the hydrogen storage tank 11 from the right end of the U-shaped drying tube 13. The hydrogen enters the proton exchange membrane fuel cell 16, reacts with the oxygen entering through the air permeable window 15, and the exhaust gas generated is blown out of the battery by the exhaust device 14. The current generated by the proton exchange membrane fuel cell 16 is stored in the power storage regulator 17 and stably output to various electronic devices through the USB power transmission interface 18.

[0033] Embodiment 2

[0034] The difference between this embodiment and the first embodiment is that, in an emergency, the charging process can also be realized using only the fuel cell system, and high-purity hydrogen is charged through the hydrogen charging valve 10. It is worth noting that the external charging pressure needs to be constant at about 0.5 MPa, and at this time, the USB power transmission interface 18 can stably output 5V DC.

[0035] It will be understood by those skilled in the art that, unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as generally understood by those skilled in the art in the art to which the present invention belongs. It should also be understood that terms such as those defined in common dictionaries should be understood to have meanings consistent with the meanings in the context of the prior art, and will not be interpreted with idealized or overly formal meanings unless defined as herein.

[0036] The above embodiments are only for explaining the technical idea of ​​the present invention, and cannot be used to limit the protection scope of the present invention. Any changes made on the basis of the technical solution according to the technical idea proposed by the present invention shall fall within the protection scope of the present invention. The above embodiments of the present invention are described in detail, but the present invention is not limited to the above embodiments. Various changes can be made within the knowledge scope of ordinary technicians in the field without departing from the purpose of the present invention.

Claims

1. A portable reaction-controlled solid fuel cell, characterized in that: It includes a hydrogen generation system, a gas filtration device and a fuel cell system; The hydrogen generation system comprises a reactor with a spiral sealing cover, a filter screen is suspended in the reactor, a pair of porous aluminum rods are arranged in the filter screen, the upper end of the filter screen is connected to the inner wall of the reactor through a filter screen adjustment pulley, and the side wall of the reactor is connected to the gas filtering device through a one-way air inlet valve; The filter adjustment pulley can manually control the speed and direction. The central axis of the filter adjustment pulley can be manually adjusted outside the reactor to adjust the height of the filter. If the hydrogen generation rate is fast, adjust the filter adjustment pulley to reduce the length of the filter and reduce the reaction rate of the upper part of the porous aluminum rod from the water. The gas filtering device comprises a U-shaped drying tube, in which a desiccant is filled; The fuel cell system includes a hydrogen storage tank, an exchange membrane fuel cell and an electric storage voltage regulator from top to bottom. The hydrogen storage tank is connected to a U-shaped drying tube via a one-way gas outlet valve. The one-way gas outlet valve and the one-way gas inlet valve are respectively located on both sides of the U-shaped drying tube. An air charging valve is arranged on the hydrogen storage tank, and a USB power transmission interface is arranged on the electric storage voltage regulator.

2. A portable reaction-controlled solid fuel cell according to claim 1, characterized in that: A digital pressure gauge is installed on the side wall of the reactor.

3. A portable reaction-controlled solid fuel cell according to claim 1, characterized in that: The exchange membrane fuel cell is provided with a ventilation window and an exhaust device.

4. A portable reaction-controlled solid fuel cell according to claim 1, characterized in that: The porous aluminum rod is formed by mixing refined aluminum powder, quicklime powder and a reaction catalyst and placing the mixture in a fixed container and pressing the mixture under high pressure.

5. A portable reaction-controlled solid fuel cell according to claim 1, characterized in that: The U-shaped drying tube of the gas filtering device is filled with soda lime, glass fiber and cotton.

6. A portable reaction-controlled solid fuel cell according to claim 1, characterized in that: The hydrogen storage tank is provided with a hydrogen filling valve for filling with 0.1-1 MPa high-purity hydrogen for standby or emergency use.

7. A portable reaction-controlled solid fuel cell according to claim 1, characterized in that: The hydrogen generation system and the gas filtering device, as well as the gas filtering device and the fuel cell system are detachably connected via connecting slide rails.

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