JP2006206366A - Container for housing fuel reformer and fuel reforming apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a lightweight container for housing a fuel reformer which enables to prevent temperature rise of the container, and a fuel reforming apparatus. <P>SOLUTION: The container for housing a fuel reformer comprises a base body 1 having a cavity in which a fuel reformer 9 is housed, a lid member 4 which is attached to the upper surface of the base body 1 so as to cover the cavity, a discharge pipe 5b which connects the inside of the cavity and the outside for discharging a reformed gas from the fuel reformer 9, and a supply pipe 5a which connects the inside of the cavity and the outside for supplying a fuel into the fuel reformer 9, wherein slender protrusions (A) are formed on at least one of the inner surface of the base body 1, the outer surface of the base body 1, the inner surface of the lid member 4, and the outer surface of the lid member 4. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a fuel reformer storage container and a fuel reformer that store a fuel reformer that generates hydrogen gas from various fuels in a fuel cell system, for example.

  In recent years, fuel cell systems have been in the limelight as next-generation power systems that produce electric energy efficiently and cleanly. In the cogeneration power generation system market, which is already represented by the automobile market and household fuel cell power generation systems. In the field, field tests for practical application aiming at low cost are actively conducted.

  More recently, the fuel cell system has been reduced in size and is being studied for use as a power source for portable devices such as mobile phones, PDAs (Personal Digital Assistants), notebook computers, digital video cameras, and digital still cameras.

  In general, a fuel cell uses, for example, hydrocarbon gas such as methane or natural gas (CNG) or alcohol such as methanol or ethanol as fuel, and is converted to hydrogen gas or other gas by a fuel reformer using a fuel reformer. Then, the hydrogen gas is supplied to a power generation device called a power generation cell to generate power.

  The reforming of fuel by the fuel reformer here refers to a process of generating hydrogen gas by a catalytic reaction.

For example, when methanol is used as the fuel, there are several reactions for reforming the fuel. For example, in the steam reforming reaction shown in the following chemical reaction formula (1) (in formula (1), steam is added to methanol. This is a process for generating hydrogen gas (H ₂ ) by combining them with a reaction to reform hydrogen and carbon dioxide. Note that a very small amount of product gas (mainly CO ₂ ) other than hydrogen produced by this reforming reaction is usually discharged into the atmosphere.

CH ₃ OH + H ₂ O → 3H ₂ + CO ₂ (1)
Since such a steam reforming reaction is an endothermic reaction, it is necessary to maintain the reaction temperature by heating from the outside with a heater or the like. Therefore, in order to reform the fuel in the fuel reformer, for example, methanol was used as the fuel in order to prevent the steam reforming activity of the catalyst from being lowered and to maintain a high concentration of generated hydrogen gas. In some cases, a temperature of about 200 to 500 ° C. is required, and in the case of using methane gas, a high temperature of about 300 to 800 ° C. is required.

  For example, in the partial oxidation reforming reaction as shown in the following chemical reaction formula (2), a reforming temperature of about 400 to 600 ° C. is required.

CH ₃ OH + 1 / 2O ₂ + 2N ₂ → 2H ₂ + CO ₂ + 2N ₂ (2)
Therefore, in a cogeneration power generation system typified by a household fuel cell system, since this system itself is large, the outer wall of the fuel reformer storage container is made into a double structure to form a vacuum container, or 2 By filling a heat insulating material between the inner and outer walls having a heavy structure, the heat inside the fuel reformer is prevented from being conducted to the outside and the temperature of the fuel reformer is lowered. Therefore, when a fuel reformer is used as a fuel reformer storage container, the fuel reformer can be directly joined and fixed to the inner wall of the double structure of the fuel reformer storage container. is there.
JP 2003-2602 A

  In recent years, fuel cell systems for portable devices have been required to be reduced in size and height for storage in portable devices. However, the conventional structure of the outer wall of the fuel reformer storage container having a double structure cannot be employed in a fuel cell system for portable devices because the entire fuel cell system becomes complicated and large. . Therefore, in a fuel cell system for portable equipment, when reforming fuel in the fuel reformer by evacuating the inside of the container for housing the fuel reformer composed of a base body having a cavity and a lid. It has been proposed to provide a fuel cell system that cuts off heat generated to the outside and reduces power generation loss.

  However, when the inside of the cavity is evacuated, the lid and the base are deformed toward the inside of the cavity, and the lid and the base are in contact with the fuel reformer, so that the heat in the fuel reformer is As a result of heat transfer to the substrate, the fuel reformer storage container becomes hot due to the heat, and there is a fear that other components in the portable device are destroyed.

  By increasing the thickness of the lid and the base, it is possible to reduce the deformation of the lid and the base due to evacuation of the inside of the cavity. There was a risk that it would be difficult to store.

  The present invention has been completed in view of the above problems in the prior art, and an object of the present invention is to prevent a high temperature of a fuel reformer storage container and to store a lightweight fuel reformer. An object of the present invention is to provide a container and a fuel reformer.

  A container for housing a fuel reformer according to the present invention includes a base having a cavity in which a fuel reformer that generates reformed gas including hydrogen gas from fuel is stored, and an upper surface of the base covering the cavity. A lid to be attached, a discharge pipe communicating between the inside of the cavity and the outside for discharging the reformed gas from the fuel reformer, and the inside of the cavity for supplying the fuel to the fuel reformer A fuel reformer storage container comprising a supply pipe communicating with the outside, wherein the container is long on at least one of the inner surface of the base, the outer surface of the base, the inner surface of the lid, and the outer surface of the lid A thin protrusion is formed.

  In the fuel reformer storage container of the present invention, preferably, the projection or the fuel reformer overlaps the inner surface of the base body or the lid body in a plan view of the base body or the lid body. A protrusion is provided.

  In the fuel reformer storage container according to the present invention, preferably, the protrusion and the fuel reformer overlap the outer surface of the base body or the lid body so that the base body or the lid body is seen through in plan view. A protrusion is provided.

  The fuel reformer storage container according to the present invention is preferably characterized in that the protrusion is formed in a wavy shape in plan view.

  The fuel reformer of the present invention includes a fuel reformer storage container according to the present invention, a fuel reformer stored in the cavity, and an upper surface of the base so as to close an opening of the cavity. And a lid to be attached.

  The fuel reformer storage container of the present invention has a long and thin protrusion formed on at least one of the inner surface of the substrate, the outer surface of the substrate, the inner surface of the lid, and the outer surface of the lid, and is thus emitted from the fuel reformer. Thus, the heat transmitted to the base body and the lid can be effectively dispersed by the protrusions, and it is possible to effectively prevent the fuel reformer storage container from being locally heated. In addition, in order to cut off the conduction of heat generated when reforming the fuel in the fuel reformer to the outside, the inside of the fuel reformer storage container consisting of a base body having a cavity and a lid is evacuated. In this case, the lid body and the base body are effectively prevented from deforming toward the inside of the cavity and coming into contact with the fuel reformer, and heat is transferred from the fuel reformer to the lid body and the base body, It is possible to effectively prevent the temperature of the substrate surface from rising. As a result, it is possible to effectively prevent other components in the portable device from being destroyed, and the fuel cell system can be used stably and safely for a long time.

  Furthermore, it is not necessary to increase the thickness of the base body and the cover body, and the base body and the cover body can be reinforced by the protrusions, so that the weight of the fuel reformer storage container is not increased. it can.

  The container for housing a fuel reformer according to the present invention is provided with a protrusion on the inner surface of the base body or the cover body so that the protrusion and the fuel reformer overlap each other when the base body or the cover body is seen through the plane. The heat radiated from the container can be well dispersed by the protrusions, and the radiated heat can be diffusely reflected by the protrusions to effectively prevent the heat from concentrating on a part of the base body or the lid and becoming high temperature. Therefore, the heat influence with respect to other components can be suppressed more effectively.

  The fuel reformer storage container of the present invention is provided with a protrusion on the outer surface of the base or lid so that the protrusion and the fuel reformer overlap each other when the base or the lid is seen through the plane. The heat radiated from the vessel and transmitted to the base body and the lid body can be efficiently radiated to the outside by the protrusions, and the occurrence of stress due to the thermal expansion and distortion of the base body and lid body can be effectively suppressed. Therefore, the airtightness of the fuel reformer storage container can be maintained satisfactorily.

  Since the fuel reformer storage container of the present invention is formed in a wavy shape in plan view, the protrusions are not only formed in one direction on the inner and outer surfaces of the base body and the lid, but also in the vertical direction. Since the portion extending in the lateral direction is formed, it is possible to effectively prevent the bending strength of the base body and the cover body from becoming anisotropic and the strength from being weakened in a specific direction. This can be prevented more effectively.

  The fuel reformer of the present invention is attached to the upper surface of the base body so as to close the opening of the fuel reformer, the fuel reformer accommodated in the cavity, and the cavity of the present invention. Therefore, it is possible to prevent a high temperature and to reduce the weight of the fuel reformer, which has the characteristics of the fuel reformer storage container of the present invention.

  Embodiments of a fuel reformer storage container and a fuel reformer of the present invention will be described in detail below. FIG. 1 is a cross-sectional view showing an example of an embodiment of a fuel reformer storage container and a fuel reformer according to the present invention. In this figure, 1 is a base, 2 is an external lead terminal as wiring for supplying power to the fuel reformer, 12 is a lead terminal to which a gas adsorbent is fixed, 3 is a bonding wire, 4 is a lid, 5a is a supply pipe for supplying fuel to the fuel reformer, 5b is a discharge pipe for discharging the reformed gas from the fuel reformer, 7 is an electrode, 8 is an external lead terminal 2 in the through-hole of the base 1 1 is a fuel reformer, 10 is a gas adsorbent, and A is a projection, and mainly the base body 1, the lid 4, the supply pipe 5 a and the discharge pipe. A fuel reformer storage container for storing the fuel reformer 9 is configured in 5b. The fuel reformer 9 is stored in the fuel reformer storage container, and the base body 1 and the lid 4 are joined together. It becomes the fuel reformer 11 of the present invention.

Both the base body 1 and the lid body 4 in the present invention have a role as a container for storing the fuel reformer 9. These include, for example, Fe-based alloys such as SUS, Fe—Ni—Co alloy, and Fe—Ni alloy, metal materials such as oxygen-free copper, aluminum oxide (Al ₂ O ₃ ) sintered body, mullite (3Al ₂ Ceramic materials such as O ₃ .2SiO ₂ ) sintered body, silicon carbide (SiC) sintered body, aluminum nitride (AlN) sintered body, silicon nitride (Si ₃ N ₄ ) sintered body, and glass ceramics In addition, it is made of a highly heat-resistant resin material such as polyimide.

The glass ceramics applicable to the substrate 1 and the lid 4 are composed of a glass component and a filler component. As the glass component, for example, SiO ₂ —B ₂ O ₃ system, SiO ₂ —B ₂ O ₃ —Al ₂ O ₃ system, SiO ₂ —B ₂ O ₃ —Al ₂ O ₃ —MO system (where M is Ca, Sr, Mg, Ba or Zn), SiO ₂ —Al ₂ O ₃ —M ¹ O—M ² O system (where M ¹ and M ² are the same or different and Ca, Sr, Mg, Ba or Zn), SiO ₂ —B ₂ O ₃ —Al ₂ O ₃ —M ¹ O—M ² O system (where M ¹ and M ² are the same as above), SiO ₂ —B ₂ O ₃ — M ³ ₂ O system (where M ³ represents Li, Na or K), SiO ₂ —B ₂ O ₃ —Al ₂ O ₃ —M ³ ₂ O system (where M ³ is the same as above) , Pb glass, Bi glass and the like.

Examples of the filler component include a composite oxide of Al ₂ O ₃ , SiO ₂ , ZrO ₂ and an alkaline earth metal oxide, a composite oxide of TiO ₂ and an alkaline earth metal oxide, Al ₂ O _3. And composite oxides containing at least one selected from SiO ₂ (for example, spinel, mullite, cordierite) and the like.

  On the other hand, when the base 1 and the lid 4 are formed of a dense aluminum oxide sintered body having a relative density of 95% or more, for example, first, rare earth oxide powder or aluminum oxide powder is added to the aluminum oxide powder. A raw material powder of an aluminum oxide sintered body is prepared by adding and mixing a sintering aid such as the above. Next, an organic binder and a dispersion medium are added to the raw material powder, mixed to form a paste, and this paste is green by a doctor blade method, or an organic binder is added to the raw material powder, press forming, rolling forming, etc. A sheet is produced. Then, after aligning a predetermined number of sheet-like molded bodies and laminating and pressure-bonding, the laminated body is fired at a firing maximum temperature of 1200 to 1500 ° C., for example, in a non-oxidizing atmosphere, and the target ceramic A base body 1 and a lid 4 made of the product are obtained. The base 1 and the lid 4 may be molded by a powder molding press method.

  On the other hand, when the base 1 and the lid 4 are made of a metal material, they are formed into a predetermined shape by a cutting method, a press method, a MIM (Metal Injection Mold) method, or the like.

  Since the base body 1 and the lid body 4 have a wave-like structure in the longitudinal direction of the fuel reforming storage container, conduction of heat generated when reforming the fuel in the fuel reformer to the outside is performed. Is generated in the base body 1 and the cover body 4 when the inside of the fuel reformer storage container composed of the base body 1 and the cover body 4 having a cavity is evacuated in order to obtain a fuel cell system with low power generation loss. The stress to be relieved can be reduced, and the deformation of the base 1 and the lid 4 can be reduced.

  In the fuel reformer storage container of the present invention, a long and narrow protrusion A is formed on at least one of the inner surface of the substrate 1, the outer surface of the substrate 1, the inner surface of the lid 4, and the outer surface of the lid 4. As a result, the heat radiated from the fuel reformer 9 and transmitted to the base body 1 and the lid 4 can be effectively dispersed by the protrusions A, and the fuel reformer storage container is locally heated. It can be effectively prevented. Further, in order to cut off the conduction of heat generated when reforming the fuel in the fuel reformer 9 to the outside, the inside of the fuel reformer storage container comprising the base body 1 having a cavity and the lid 4 Is effectively prevented from deforming toward the inside of the cavity and coming into contact with the fuel reformer 9, and the lid 4 and the base body from the fuel reformer 9. It is possible to effectively prevent heat from being transmitted to 1 and the temperature of the lid 4 and the surface of the substrate 1 from rising. As a result, it is possible to effectively prevent other components in the portable device from being destroyed, and the fuel cell system can be used stably and safely for a long time.

  The protrusion A has an elongated shape, and a plurality of protrusions A may be formed. The protrusion A is preferably formed so as to be hard to bend by reinforcing the base 1 and the lid body 4 so that the base body 1 and the lid body 4 are easy to bend. It may be formed in parallel with the long side direction. Rather than bend the plurality of protrusions A in the same direction, as shown in FIG. 4, in order to reinforce both the vertical and horizontal directions, the base 1 and the lid 4 may be formed radially from the central portion toward the outer peripheral portion. .

  The protrusion A is not limited to a straight shape, but may be zigzag, spiral, or arranged in an annular shape having different diameters, or may be wavy as shown in FIG. Preferably, the protrusion A is formed in a wavy shape in plan view. Thereby, not only the protrusion A is formed in one direction on the inner and outer surfaces of the base body 1 and the lid body 4, but also a portion extending in the vertical direction and the lateral direction is formed. It is possible to effectively prevent anisotropy in the bending strength and to weaken the strength in a specific direction, and to more effectively prevent the base body 1 and the lid body 4 from being deformed.

  Further, the heat radiated from the fuel reformer 9 is well dispersed by the protrusion A and the radiated heat is diffusely reflected by the protrusion A, so that the heat concentrates on a part of the base body 1 and the lid body 4 and becomes high temperature. From the viewpoint of effectively preventing the above, the protrusion A is provided on the inner surface of the base body 1 or the cover body 4 so that the protrusion A and the fuel reformer 9 overlap each other when the base body 1 or the cover body 4 is seen through the plane. Good.

  Further, the heat radiated from the fuel reformer 9 and transmitted to the base body 1 and the lid body 4 is efficiently radiated to the outside by the projections A, and the base body 1 and the lid body 4 are thermally expanded and distorted to cause stress. From the viewpoint of effective suppression, it is preferable to provide the protrusion A on the outer surface of the base body 1 or the cover body 4 so that the protrusion A and the fuel reformer 9 overlap each other when the base body 1 or the cover body 4 is seen through. .

  The width and height of the protrusion A are preferably 0.01 to 3 cm. When the thickness is less than 0.01 cm, the effect of reinforcing the base body 1 and the lid body 4 is reduced, and the base body 1 and the lid body 4 are deformed and easily come into contact with the fuel reformer 9. If it exceeds 3 cm, it is difficult to reduce the weight of the fuel reforming storage container.

  Further, the interval between the protrusions A is desirably 0.01 cm to 1 cm. If it exceeds 1 cm, the stress generated when the inside of the fuel reformer storage container including the base body 1 having a cavity and the lid 4 is evacuated cannot be sufficiently relaxed, and the base 1 and the lid 4 may be deformed. If it is less than 0.01 cm, it is difficult to reduce the weight of the fuel reforming storage container.

  Further, when the base 1 and the lid 4 are made of a metal material, the surface thereof is subjected to a coating treatment such as Au or Ni plating or a resin coating such as polyimide in order to prevent corrosion. Is desirable. For example, in the case of Au plating treatment, the thickness is desirably about 0.1 to 5 μm.

  Next, the external lead terminal 2 in the present invention is preferably made of a metal that is the same as or close to the thermal expansion coefficient of the base 1 and the lid 4, and is made of, for example, an Fe—Ni alloy or an Fe—Ni—Co alloy. However, it is possible to prevent the occurrence of thermal strain with respect to temperature changes during practical use. In addition, a good sealing property between the external lead terminal 2 and the substrate 1 can be obtained, and the bonding property is excellent, and the strength necessary for mounting and good solderability and weldability can be ensured.

  The insulating sealing material 8 of the present invention is made of, for example, a glass material such as borosilicate glass, alkali glass, or insulating glass mainly containing lead, or a ceramic material such as aluminum oxide. The base 1 and the external lead terminal 2 are electrically insulated by the insulating sealing material 8 in the through hole, and the external lead terminal 2 is sealed and fixed. The through-hole through which the external lead terminal 2 formed in the base body 1 is inserted needs to have a size that prevents the base body 1 and the external lead terminal 2 from coming into electrical contact with each other. An inner diameter that can secure a distance of 0.1 mm or more from the lead terminal 2 to the base 1 is required.

  When the insulating sealing material 8 is made of a ceramic material such as aluminum oxide, the external lead terminal 2 is inserted into the through hole of the base 1 via the insulating sealing material 8 made of, for example, a cylindrical ceramic material, and insulated. The connection between the sealing material 8 and the substrate 1 and the connection between the insulating sealing material 8 and the external lead terminal 2 can be made with a brazing material such as Au—Ge or Ag—Cu.

  The electrode 7 on the fuel reformer 9 and the external lead terminal 2 are electrically connected via the bonding wire 3. Furthermore, by sealing the cavity of the base body 1 using the lid 4, there is provided a fuel reformer storage container that hermetically seals the fuel reformer 9 stored in the cavity of the fuel reformer storage container. It is formed.

  The fuel reformer 9 housed in the fuel reformer housing container of the present invention is a device for reforming fuel, and a fine channel in which a catalyst for reforming the fuel is supported. Or it has a space | gap.

  The shape of the fuel reformer 9 is various. For example, as a fine chemical device, by applying a semiconductor manufacturing technology or the like, for example, a semiconductor such as silicon, a substrate of an inorganic material such as quartz, glass, metal, ceramics, A liquid flow path is created by forming a narrow groove by a cutting method, etching method, blasting method, etc., and for the purpose of preventing evaporation of the liquid during operation, a glass plate, a metal cover, etc. are anodic bonded, brazed, For example, a substantially rectangular shape is used which is used in close contact with the surface by welding or the like. Moreover, it is a tube made of an inorganic material such as quartz, glass, metal, ceramics, etc., and the inner surface of which is supported with a catalyst for reforming the fuel.

  When the fuel reforming reaction is an endothermic reaction such as a steam reforming reaction, the fuel reformer 9 has a temperature control mechanism, for example, a thin film heater (not shown) or a thick film heater (not shown) composed of a resistance layer or the like. The electrode 7 is formed on the surface as a terminal for supplying power to the heater. By adjusting the temperature condition to about 200 to 800 ° C. corresponding to the fuel reforming condition by this temperature adjusting mechanism, the fuel supplied from the fuel supply port to which the supply pipe 5a is connected is caused to react with the water vapor. The reforming reaction for generating hydrogen gas from the discharge pipe 5b connected to the discharge port can be favorably promoted.

  Such a heater is disposed in or near the flow path, the gap, or the like where the catalyst in the fuel reformer 9 is supported and reforms the fuel. Thereby, the heat generated from the heater can be efficiently used for the fuel reforming reaction.

  The fuel reformer 9 has a cover 4 attached to the base 1 so as to cover the concave portion by bonding with a metal brazing material such as Au alloy, Ag alloy, Al alloy, or a glass material, or by a seam weld method. The fuel reformer is stored in a container for storing the fuel reformer.

  In the fuel reformer 9, the electrode 7 on the fuel reformer 9 is electrically connected to the external lead terminal 2 provided on the substrate 1 through the bonding wire 3. Thereby, the heater formed on the surface or inside of the fuel reformer 9 can be heated through the electrode 7. As a result, the reaction temperature can be maintained in the fuel reformer 9, and the fuel reforming reaction can be stabilized.

The supply pipe 5a and the discharge pipe 5b are a supply path for raw materials and fuel gas fluid and a discharge path for reformed gas containing hydrogen, respectively. These include, for example, Fe-Ni alloy, Fe-Ni-Co alloy, a metal material such as SUS, _Al 2 _{O 3} sintered _material, 3Al ₂ O 3 · 2SiO ₂ sintered material, SiC sintered material, It is formed of a ceramic material such as an AlN sintered body, a Si ₃ N ₄ sintered body, a glass ceramic sintered body, a highly heat resistant resin material such as polyimide, or glass.

  Preferably, it is difficult to be embrittled by hydrogen contained in the reformed gas. Such materials include Fe alloys, ceramics, and glass.

  The supply pipe 5 a and the discharge pipe 5 b may be formed so as to penetrate the base body 1 or may be formed so as to penetrate the lid body 4. Alternatively, the substrate 1 and the lid 4 may be sandwiched and fixed.

  In the fuel reformer storage container of the present invention, the gas adsorbent 10 that adsorbs the gas in the cavity is preferably stored in the cavity. Thereby, after sealing with the lid 4, the gas adsorbed on the surface of each part inside the fuel reformer storage container such as the inside of the fuel reformer storage container or the surface of the fuel reformer 9 itself is absorbed. Even if the gas is released as outgas into the fuel reformer 11 with the influence of temperature during fuel reforming or with the passage of time, the gas can be adsorbed by the gas adsorbent 10, so that the fuel reforming is possible. The vacuum state inside the apparatus 11 can be maintained for a long period of time not only immediately after the fuel reformer 9 is housed and sealed in the fuel reformer 11.

  The gas adsorbing material 10 performs vacuum evacuation by utilizing the gas adsorption action of chemically active metal powder, and is one or both sides of a metal plate made of Ni—Cr or the like having a thickness of about 10 to 500 μm. And a metal powder containing Zr, Fe, V, etc. as a main component and having a thickness of 10 μm to 1 mm.

  In addition, since the surface of the metal powder of the gas adsorbent 10 is usually covered with an oxide film, the gas adsorbing action does not appear as it is. The metal powder of the gas adsorbent 10 is heated, and the oxide film on the surface diffuses into the gas adsorbent 10 and a new active surface appears on the surface, whereby the gas adsorbing action is activated (activated).

  The gas adsorbent 10 is heated by causing the metal plate to generate heat by transmitting electrical energy from an external power source to the metal plate inside the gas adsorbent through a lead terminal, or to the lid 4 or the substrate 1. The gas adsorbent 10 is irradiated with light rays such as infrared rays and laser light through the provided window, and the energy of the light rays is directly converted into thermal energy by the gas adsorbent 10.

  In addition, this invention is not limited to the example of the above embodiment, A various change may be added in the range which does not deviate from the summary of this invention.

It is an upper side perspective view showing an example of an embodiment of a fuel reformer of the present invention. FIG. 2 is a lower perspective view of the fuel reformer of FIG. 1. It is a top view of the protrusion in the fuel reformer of FIG. It is a top view of the protrusion in other examples of an embodiment of a fuel reformer of the present invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Base | substrate 4 ... Lid body 5a ... Supply pipe 5b ... Discharge pipe 9 ... Fuel reformer 11 ... Fuel reformer A ... .... Protrusions

Claims (5)

A base having a cavity in which a fuel reformer for generating a reformed gas containing hydrogen gas from fuel is stored; a lid attached to the upper surface of the base so as to cover the cavity; and the fuel reformer A discharge pipe that communicates the inside and outside of the cavity to discharge the reformed gas from the fuel, and a supply pipe that communicates the inside and outside of the cavity to supply the fuel to the fuel reformer. A fuel reformer storage container, characterized in that a long protrusion is formed on at least one of the inner surface of the base, the outer surface of the base, the inner surface of the lid, and the outer surface of the lid. Container for storing quality organs. 2. The fuel according to claim 1, wherein the protrusion is provided on an inner surface of the base body or the lid body so that the protrusion and the fuel reformer overlap each other when the base body or the lid body is seen in a plan view. Reformer storage container. The projection is provided on an outer surface of the base body or the lid body so that the projection and the fuel reformer overlap each other when the base body or the lid body is seen through the plane. The fuel reformer storage container according to 2. The fuel reformer storage container according to any one of claims 1 to 3, wherein the protrusion is formed in a wavy shape in plan view. A fuel reformer storage container according to any one of claims 1 to 4, a fuel reformer stored in the cavity, and an upper surface of the base so as to close an opening of the cavity. A fuel reformer comprising: a lid to be attached.

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