阅读说明：本技术 微型重整装置以及微型重整系统 (Micro reforming device and micro reforming system ) 是由 张磊 翁幼云 翁玉冰 于 2019-10-18 设计创作，主要内容包括：本发明涉及醇类重整制氢技术领域,尤其是涉及一种微型重整装置以及微型重整系统,包括：气化单元、重整单元以及为二者加热的加热单元；气化单元与重整单元并排设置,且气化单元上开设有若干尺寸为微米级的气化孔,重整单元上开设有若干尺寸为微米级的重整孔。在工作中,甲醇和水的混合液体进入装置,在通过气化单元的后,甲醇和水的液体被加热气化,达到甲醇反应重整所需要的温度。在微型重整装置中,微米级别的气化孔和重整孔具有更大的比较面积,能够使得甲醇和水的混合液体进入装置,在通过气化单元的后,甲醇和水的液体后被加热气化,接触更加充分,从而反应也更加全面,达到更大的产氢量。并且,生产成本低且应用灵活,具有广泛的应用前景。(The invention relates to the technical field of hydrogen production by alcohol reforming, in particular to a micro reforming device and a micro reforming system, which comprise: a gasification unit, a reforming unit and a heating unit for heating the gasification unit and the reforming unit; the gasification unit and the reforming unit are arranged side by side, a plurality of gasification holes with micron-sized sizes are formed in the gasification unit, and a plurality of reforming holes with micron-sized sizes are formed in the reforming unit. In operation, the mixed liquid of methanol and water enters the device, and after passing through the gasification unit, the liquid of methanol and water is heated and gasified to reach the temperature required by the reforming reaction of methanol. In miniature reforming apparatus, the micron level gasification hole and the reforming hole have bigger comparative area, can make the mixed liquid of methanol and water get into the device, through the back of gasification unit, heated gasification behind the liquid of methanol and water, the contact is more abundant to the reaction is also more comprehensive, reaches bigger hydrogen output. And the production cost is low, the application is flexible, and the application prospect is wide.)

1. A micro reformer, comprising: a gasification unit (200), a reforming unit (300), and a heating unit that heats both;

The gasification unit (200) and the reforming unit (300) are arranged side by side, a plurality of gasification holes with micron-sized sizes are formed in the gasification unit (200), and a plurality of reforming holes with micron-sized sizes are formed in the reforming unit (300).

2. the micro reformer according to claim 1, wherein the gasification unit (200) comprises a plurality of gasification plates (201) arranged in a stacked manner, and the gasification holes are formed in the gasification plates (201);

The reforming unit (300) comprises a plurality of reforming plates (301) which are arranged in a stacked manner, and the reforming holes are formed in the reforming plates (301).

3. The micro reformer according to claim 2, wherein an inner surface of the reforming hole and both surfaces of the reforming plate (301) are coated with a reforming catalyst.

4. The micro reformer according to claim 3, wherein the heating unit is a heating power supply (100), the gasification unit (200) and the reforming unit (300) are both made of conductive materials, and positive and negative stages of the heating power supply (100) are electrically connected to the gasification unit (200) and the reforming unit (300), respectively.

5. The micro reformer according to claim 4, wherein the heating power source (100) comprises a battery and a hydrogen fuel cell.

6. The reformer according to claim 2, wherein the vaporization plate (200) and the reforming plate (300) are both made of a conductive ceramic.

7. The micro reformer according to claim 3, further comprising an upper end cap (401) and a lower end cap (402) connected by bolts (403), the upper end cap (401) being connected to the reforming unit (300), the lower end cap (402) being connected to the gasification unit (200); and the upper end cover (401) and the lower end cover (402) are respectively provided with a conductive electrode which is electrically connected with the heating power supply (100).

8. The micro reformer according to any one of claims 2 to 5, wherein a sealing gasket is provided between any two adjacent gasification plates (201) or any two reforming plates (301).

9. The micro reformer according to any one of claims 1 to 5, wherein a temperature sensor is provided between the gasification unit (200) and the reforming unit (300), and a temperature controller is connected to the temperature sensor.

10. A micro reforming system comprising a raw material feeding means 500, a processing means, and the micro reforming apparatus of any one of claims 1 to 9 disposed therebetween, wherein the raw material feeding means (500) communicates with the micro reforming apparatus through a feeding pipe provided with a feeding pump.

Technical Field

The invention relates to the technical field of hydrogen production by alcohol reforming, in particular to a micro reforming device and a micro reforming system.

Background

The fuel cell has the advantages of high energy conversion efficiency, no pollution and the like, and is used in aerospace, military, transport tools, vehicles, etc,

The fuel used by the fuel cell is undoubtedly excellent in terms of the use performance, and hydrogen is a basic material commonly used in industrial production and is widely applied to various occasions of industrial production. Especially, when hydrogen is used as the hydrogen source of the fuel cell, the pollution and toxicity are less than those caused by burning other fuels, so that the hydrogen can be basically used for the electric automobile with the fuel cell to realize zero emission. However, hydrogen is a normal temperature gas, so how to conveniently carry is a great problem, a high-pressure steel cylinder is heavy and occupies a large area, and a rare earth hydrogen absorption material is low in specific energy and too expensive.

An Indirect Methanol Fuel Cell (IMFC) is a type of proton exchange membrane Fuel Cell that uses Methanol as a Fuel. It has the features of high efficiency, small module, low temperature operation, no need of water management system, etc. Before being sent to the fuel cell, the methanol is subjected to methanol reforming reaction through a reformer. And the methanol is in liquid state at-97.0 ℃ to 64.7 ℃, so that the fuel cell can operate at lower temperature to generate pure water and carbon dioxide after power generation. The device is a power generation device which converts methanol into hydrogen through a reformer and supplies the hydrogen to a fuel cell, and integrates the superiorities of a pure hydrogen fuel cell in the aspects of low-temperature quick start, specific power, high energy conversion efficiency and the like. Methanol is a good liquid fuel, because the methanol has high hydrogen-carbon ratio, no carbon-carbon bond and high potential product capacity, is in the same state regardless of use or storage, has mild conditions, has high yield, is the third commercial chemical second to ethylene and ammonia in more than 6000 million tons in domestic annual production, and has the yield far more than the total demand; in addition, because the methanol is a normal-temperature liquid and cannot be easily combusted without naked fire, the methanol is a well-known preferred fuel source of the future fuel cell.

The existing tubular reforming hydrogen production reactor has simple structure, easy catalyst addition or removal and no catalyst damage, and has the problems of large volume, low catalyst utilization rate and limited heat exchange area for a fuel cell system.

The plate type reactor has compact structure, large heat exchange area, good heat transfer performance, easy amplification and high production efficiency. The problems exist that the volume is large, the heat transfer between adjacent reactors needs to be reasonably controlled during scale-up, and the using amount of the catalyst is large.

The micro-reactor contains micro-channels with various shapes, and reactants can react correspondingly when passing through the micro-channels, and the micro-reactor has small size, neat structure, large specific surface area and small reaction space, thereby enhancing the mass transfer and heat transfer capacity and improving the conversion rate of chemical reaction

The micro-reactor has the characteristics of small volume, neat structure, high heat transfer, mass transfer and reaction efficiency, safety and portability. For portable fuel cells, the microreactor is an ideal reforming reactor, but has the problems of high manufacturing cost, high processing precision requirement and limited processing capacity, and the problems of cost, service life and the like need to be solved when the microreactor is used in a large scale.

The existing micro methanol reforming device is provided with a micro-channel reforming device and a micro-boss reforming device, and the two micro-channels have the defects of complex processing, high manufacturing cost, small specific surface area and low hydrogen production.

Disclosure of Invention

The invention aims to provide a micro reforming device and a micro reforming system, which solve the technical problems of small reaction specific surface area, complex processing, high cost and small hydrogen production amount in an alcohol reforming device in the prior art.

In one aspect, the present invention provides a micro reformer, including: a gasification unit, a reforming unit and a heating unit for heating the gasification unit and the reforming unit;

the gasification unit and the reforming unit are arranged side by side, a plurality of gasification holes with micron-sized sizes are formed in the gasification unit, and a plurality of reforming holes with micron-sized sizes are formed in the reforming unit.

furthermore, the gasification unit comprises a plurality of gasification plates which are arranged in a stacked mode, and the gasification holes are formed in the gasification plates;

The reforming unit comprises a plurality of reforming plates which are stacked, and the reforming holes are formed in the reforming plates.

Further, the inner surface of the reforming hole and both surfaces of the reforming plate are coated with a reforming catalyst.

Furthermore, the heating unit is a heating power supply, the gasification unit and the reforming unit are both made of conductive materials, and the positive and negative stages of the heating power supply are respectively electrically connected with the gasification unit and the reforming unit.

Further, the heating power source includes a storage battery and a hydrogen fuel cell.

Furthermore, the gasification plate and the reforming plate are both made of conductive ceramics.

The gasification unit further comprises an upper end cover and a lower end cover which are connected through bolts, wherein the upper end cover is connected with the reforming unit, and the lower end cover is connected with the gasification unit; and the upper end cover and the lower end cover are respectively provided with a conductive electrode which is electrically connected with the heating power supply.

Further, a sealing gasket is arranged between any two adjacent gasification plates or any two adjacent reforming plates.

Further, a temperature sensor is arranged between the gasification unit and the reforming unit, and the temperature sensor is connected with a temperature controller.

On the other hand, the invention provides a micro reforming system, which comprises a raw material conveying device, a processing device and any one of the micro reforming devices provided by the technical scheme, wherein the raw material conveying device is communicated with the micro reforming device through a conveying pipeline, and a conveying pump is arranged on the conveying pipeline.

The micro reforming device and the micro reforming system provided by the invention can achieve the following beneficial effects.

The invention provides a micro reforming device and a micro reforming system, comprising a gasification unit, a reforming unit and a heating unit for heating the gasification unit and the reforming unit; the gasification unit and the reforming unit are arranged side by side, a plurality of gasification holes with micron-sized sizes are formed in the gasification unit, and a plurality of reforming holes with micron-sized sizes are formed in the reforming unit. The gasification unit is used for gasifying the introduced alcohol and water, the gasified water and alcohol enter the reforming unit to carry out reforming reaction to generate hydrogen, carbon dioxide and a small amount of carbon monoxide, and the heating unit provides heat required by gasification and reaction for the gasification unit and the reforming unit. In operation, the mixed steam of methanol and water enters the apparatus and is heated to the temperature required for reactive reforming of methanol as it passes through the gasification unit. In the micro-reforming device, the micron-scale gasification holes and the reforming holes have larger comparative areas, so that the methanol can be more fully contacted with the water, the reforming reaction is more comprehensive, and the larger hydrogen production is achieved. And the production cost is low, the application is flexible, and the application prospect is wide.

Drawings

in order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

Fig. 1 is a schematic external structural view of a micro reformer according to an embodiment of the present invention;

FIG. 2 is a schematic diagram of an internal structure of a micro reformer according to an embodiment of the present invention;

FIG. 3 is an exploded view of a micro reformer according to an embodiment of the present invention;

FIG. 4 is a right side view of FIG. 1;

Fig. 5 is a schematic structural diagram of a micro reforming system according to a second embodiment of the present invention.

Icon: 100-a heating power supply; 200-a gasification unit; 201-a gasification plate; 300-a reforming unit; 301-a reforming plate; 401-upper end cap; 402-lower end cap; 403-bolt; 404-a conductive electrode; 500-a feedstock delivery device; 600-cooling box.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The following detailed description of embodiments of the invention refers to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present invention, are given by way of illustration and explanation only, not limitation.