JP5700978B2 - Cell stack device, fuel cell module and fuel cell device - Google Patents

Description

  The present invention relates to a cell stack device, a fuel cell module, and a fuel cell device.

  In recent years, as a next generation energy, a fuel cell (hydrogen-containing gas) and air (oxygen-containing gas) are used, and a cell stack in which a plurality of fuel cells that can obtain electric power are arranged and supplied to the cell stack A cell stack device configured to combust fuel gas that has not been used for power generation at one end of the fuel cell, and the cell stack device in a storage container. Various fuel cell modules that are housed have been proposed (see, for example, Patent Document 1).

  Further, the apparatus has a burner for heating the reformer, the vaporizer and the reformer are disposed between the solid oxide fuel cell and the burner, and the reformer includes the first reforming chamber, There is known a fuel cell having a reformer having a second reforming chamber arranged in contact with the lower side of the first reforming chamber and having a structure in which a gas flowing inside the reformer is folded back (for example, , Cited reference 2).

  In such a fuel cell, since the vaporizer and the reformer are heated using the burner, it is necessary to provide the burner with the fuel cell, and there is a problem that the configuration of the fuel cell becomes complicated.

  Therefore, there is known a fuel cell having a configuration in which excess fuel is combusted between the carburetor / reformer and the fuel cell without using a burner, and the carburetor / reformer is heated by the combustion heat.

JP 2007-059377 A Japanese Patent Laid-Open No. 2007-17984

  However, in the case of the fuel cell configured to burn between the reformer and the fuel cell, the second reforming chamber is provided between the fuel cell and the vaporization chamber. Since it cannot be heated, raw fuel with low temperature cannot be heated sufficiently. Therefore, there has been a problem that the power generation efficiency cannot be increased because the reforming is not sufficiently performed.

The cell stack device according to the present invention comprises a plurality of fuel cells arranged in an erected state and electrically connected thereto, and burns fuel gas that has not been used for power generation at one end of the fuel cells. A cell stack apparatus comprising: a cell stack having a configuration; and a reformer that performs steam reforming that is spaced apart from one end of the cell stack. Further, the reformer is disposed on one side in the arrangement direction of the fuel cell, comprising: a vaporizing chamber for vaporizing the water supplied from the outside, the reforming catalyst is supplied via the vaporizing chamber RuHara The fuel gas flows toward the other side in the arrangement direction of the fuel cells, and is in contact with the reforming catalyst to be reformed into the fuel gas, and is in contact with the lower part of the vaporization chamber and the first reforming chamber. And a temperature raising chamber that allows the fuel gas supplied from the first reforming chamber to flow from the other side to the one side in the arrangement direction of the fuel cells. Further, the reformer has a hollow portion provided through the temperature raising chamber so that the lower surface of the vaporization chamber is exposed.

  Moreover, the fuel cell module of the present invention comprises the above cell stack device housed in a housing container.

  The fuel cell according to the present invention includes the above-described fuel cell module and an auxiliary device for operating the above-described cell stack device in an outer case.

  ADVANTAGE OF THE INVENTION According to this invention, the raw fuel with low temperature can be warmed effectively, and the cell stack apparatus with improved electric power generation efficiency can be provided.

It is an external appearance perspective view which shows one Embodiment of the cell stack apparatus of this invention. It is a perspective view of the reformer which comprises the cell stack apparatus shown in FIG. It is a figure which shows the reformer which comprises the cell stack apparatus shown in FIG. 1, (a) is sectional drawing, (b) is the bottom view which looked at the reformer from the back surface side. It is a figure which shows the reformer which comprises other embodiment of the cell stack apparatus of this invention, (a) is sectional drawing, (b) is the bottom view which looked at the reformer from the back surface side. It is a figure which shows the reformer which comprises further another embodiment of the cell stack apparatus of this invention, (a) is a perspective view, (b) is the bottom view which looked at the reformer from the back surface side. It is an external appearance perspective view which shows one Embodiment of the fuel cell module of this invention. It is sectional drawing of the fuel cell module shown in FIG. It is a block diagram which shows one implementation disassembly of the fuel cell apparatus of this invention.

  The cell stack apparatus 1 will be described with reference to FIG. In FIG. 1, the reforming catalyst is omitted.

  The cell stack device 1 shown in FIG. 1 is electrically connected via a current collecting member (not shown) between the fuel cells 2 in a state where a plurality of fuel cells 2 each having a fuel gas flow path are erected. A cell stack 3 connected in series is provided. Further, the lower end portion of the fuel cell 2 constituting the cell stack 3 is fixed to a gas tank 4 for supplying fuel gas to the fuel cell 2 with an insulating adhesive, and the fuel cell 2 generates electric power. A conductive member 5 having an extraction portion 6 for extracting an electric current to the outside sandwiches the cell stack 3 from both ends.

A reformer is disposed above the cell stack 3 so as to be separated from the cell stack 3. The reformer is disposed on one side in the arrangement direction of the fuel cells 3 (hereinafter sometimes abbreviated as the cell arrangement direction), a vaporization chamber 8 for vaporizing water supplied from the outside, and the reformer A first reforming chamber 9 provided with a catalyst and supplied to the other side in the cell arrangement direction through the raw fuel gas supplied through the vaporizing chamber and in contact with the reforming catalyst to reform the fuel gas, and the vaporizing chamber 8 And a heating chamber 10 disposed in contact with the lower side of the first reforming chamber 9 and flowing the fuel gas supplied from the first reforming chamber 9 from the other side to the one side in the cell arrangement direction of the reformer 7; It has.

  Here, the fuel battery cell 2 has a hollow flat plate shape having a fuel gas flow path in which fuel gas (hydrogen-containing gas) flows in the longitudinal direction of the fuel battery cell 2, and a fuel-side electrode layer is formed on the surface of the support. 1 illustrates a solid oxide fuel cell 2 in which a solid electrolyte layer and an oxygen-side electrode layer are sequentially provided.

In addition, the cell stack device 1 is configured to combust fuel gas that has not been used for power generation of the fuel cell 2 at one end side (upper end side) of the fuel cell 2. The cell stack 1 efficiently raises the temperature of the reformer 7 (the vaporization chamber 8, the first reforming chamber 9, and the temperature raising chamber 10) by heat generated by combustion (hereinafter sometimes abbreviated as combustion heat). Can be made.

Vaporization chamber 7 the raw fuel gas supplied through is supplied to the first reforming chamber 9 provided continuously in a state of contact with the vaporization chamber 7. The first reforming chamber 9 is provided with a reforming catalyst for reforming the raw fuel gas into a fuel gas, and the raw fuel gas is a combustion gas from one side to the other side in the cell arrangement direction. It will flow while being reformed. The fuel gas that has flowed to the other end of the reformer 7 in the cell arrangement direction flows into the temperature raising chamber 10 disposed in contact with the lower side of the first reforming chamber 9, and passes through the temperature raising chamber 10 in the cell arrangement direction. It will flow from the other side to one side. The fuel gas flowing through the temperature raising chamber 10 is heated by the combustion heat and supplied to the gas tank 4 through the fuel gas supply pipe 12 provided on one side of the reformer.

The vaporization chamber 8, the first reforming chamber 9, and the temperature raising chamber 10 are partitioned by a partition plate 13 as shown in FIG. The partition plate 13 can be a breathable plate, and for example, a porous plate or a metal mesh can be used. Although not shown, the vaporizing chamber 8 may be provided with a ceramic ball or the like. Thereby, when performing water steam reforming can vaporize the water efficiently steam. Further, by providing the partition plate 13 described above, the movement of the ceramic balls and the reforming catalyst described later can be reduced.

  As the reforming catalyst provided in the first reforming chamber, a reforming catalyst excellent in reforming efficiency and durability can be used. For example, Ru, a porous carrier such as γ-alumina, α-alumina, or cordierite. A reforming catalyst carrying a noble metal such as Pt or a base metal such as Ni or Fe can be used.

  Examples of the raw fuel that is reformed into fuel gas (hydrogen-containing gas) include hydrocarbon gas such as city gas and liquid fuel such as kerosene. When gaseous fuel such as hydrocarbon-based gas is used as the raw fuel, the raw fuel gas means a hydrocarbon-based gas, and the raw fuel gas (hydrocarbon-based gas) whose temperature has increased in the vaporization chamber 8 is used. be able to.

  Examples of the reforming method of the fuel gas include a steam reforming method in which the raw fuel gas and steam are reacted, and a partial oxidation reforming method in which the raw fuel gas is reacted with the reforming catalyst. By using this method, fuel gas (hydrogen-containing gas) can be efficiently generated.

  The reformer 7 will be further described with reference to FIG. FIG. 2 is a perspective view of the reformer 7 as seen from the back side.

  In the reformer 7, the raw fuel supply pipe 11 is connected to the center of the side surface of the vaporization chamber 8, and the first reforming chamber 9 is arranged on the side surface of the vaporization chamber 8 where the raw fuel supply pipe 11 is not connected. The heating chamber 10 is arranged in contact with the lower surface (the upper surface in FIG. 2) of the vaporizing chamber 8 and the first reforming chamber 9. A fuel gas supply pipe 12 is connected to the lower surface of the temperature raising chamber 10 on the vaporization chamber side, and fuel gas is supplied to the gas tank 4.

As described above, the cell stack device 1 is configured to burn fuel gas that has not been used for power generation above the cell stack 2, that is, in a region (combustion region) between the cell stack 2 and the reformer 7. Yes. As shown in FIG. 2, the reformer 7 is provided with a hollowed portion 14 so as to penetrate the temperature raising chamber 10, and the lower surface of the vaporizing chamber 8 is exposed to the outside when viewed from the back surface. Thereby, the vaporization chamber 8 is exposed to the combustion region, and combustion heat can be effectively supplied to the vaporization chamber 8. Therefore, the raw fuel having a low temperature can be warmed to the raw fuel gas in the vaporizing chamber 8. In particular, when the fuel gas is generated by the steam reforming method, the steam reforming method is an endothermic reaction, and therefore, efficient reforming can be performed by supplying the raw fuel gas having an increased temperature.

  Further, since the hollow portion 14 is provided so as to penetrate the temperature rising chamber 8, the surface area of the temperature rising chamber 8 can be increased, and combustion heat can be further supplied to the temperature rising chamber 8. Thereby, combustion heat can be supplied to the gas flowing through the temperature raising chamber, the fuel gas whose temperature has been increased can be supplied to the gas tank 4, and the power generation efficiency of the cell stack device 1 can be improved.

  The reformer 7 can be produced, for example, by welding a box-shaped member. The hollow portion 14 can be manufactured by press molding, or can be manufactured by welding the vaporization chamber 8, the first reforming chamber 9, and the temperature raising chamber 10 as separate members. In addition, the reformer 7 can be easily manufactured by manufacturing by press molding.

  In addition, it is preferable that the hollow portion 14 is provided in the heating chamber 10 with a size corresponding to the vaporizing chamber 8. In other words, it is preferable that the lower surface of the vaporizing chamber 8 is completely exposed in terms of supplying heat to the vaporizing chamber 8. However, in order to supply the fuel gas from the reformer to the fuel gas supply pipe 12, It is necessary to provide a hollow portion 14 in the fuel gas supply pipe 12 provided in the pipe appropriately so that the fuel gas flows.

  The flow of various gases (raw fuel gas or fuel gas) inside the reformer 7 will be described with reference to FIG. The arrows shown in FIGS. 3A and 3B indicate the flow of various gases flowing inside the reformer 7.

Fuel consumption supplied from the raw fuel supply tube 11 is flow towards the vaporization chamber 8 to the first reforming chamber 9, a vaporizing chamber 8 of the first reforming chamber 9 while being reformed by the reforming catalyst 17 It flows toward the opposite side. The fuel gas that has flowed to the end of the reformer 7 flows downward toward the temperature raising chamber 10. The fuel gas flowing in the temperature raising chamber 10 flows toward the fuel gas supply pipe 12 provided on the vaporizing chamber 8 side while being heated by the combustion heat.

  The flow of the fuel gas in the hollowed portion 14 flows along the periphery of the hollowed portion 14 as shown in FIG. The fuel gas that flows along the periphery of the hollow portion 14 is supplied with combustion heat from the combustion region when flowing through the temperature raising chamber 10 that is in contact with the hollow portion 14, and further becomes a fuel gas whose temperature has risen to the gas tank 4. Supplied.

  Thereby, the fuel gas whose temperature rose to the cell stack device 1 can be supplied, and the power generation efficiency can be improved.

  A reformer 15 which is another embodiment of the cell stack device of the present invention will be described with reference to FIG. In the following drawings, the same numbers are assigned to the same members. Also, the arrows shown in FIGS. 4A and 4B indicate the flow of various gases flowing inside the reformer 15.

In the reformer 15, the temperature raising chamber 10 is provided with a reforming catalyst 17 to form a second reforming chamber 16, and a partition plate 13 is provided between the first reforming chamber 9 and the second reforming chamber 16. Absent. Other configurations are the same as those of the reformer 7. The reformer 15 is provided with a second reforming chamber 16 below the first reforming chamber 9, and the first reforming in the flow direction of various gases (fuel gas and raw fuel gas) flowing through the reformer 15. The second reforming chamber 16 is provided downstream of the quality chamber 9. Therefore, even when the reforming reaction is not sufficiently performed in the first reforming chamber, the reforming reaction can be sufficiently performed in the second reforming chamber 16.

The flow of various gases inside the reformer 15 will be described with reference to FIG. Raw fuel supplied from the raw fuel supply tube 11 is flow towards the vaporization chamber 8 to the first reforming chamber 9, the vaporizing chamber 8 of the first reforming chamber 9 while being reformed by the reforming catalyst 17 opposite It flows toward the side. The fuel gas or raw fuel gas that has flowed to the end of the reformer 15 flows downward toward the second reforming chamber 16. Here, since the fuel gas or the raw fuel gas flows downward, the fuel gas or the raw fuel gas can be reliably brought into contact with the reforming catalyst 17. The fuel gas flowing in the second reforming chamber 16 flows toward the fuel gas supply pipe 12 provided on the vaporization chamber 8 side while being heated by the combustion heat. In addition, the raw fuel gas flowing in the second reforming chamber 16 flows toward the fuel gas supply pipe 12 while being reformed into the fuel gas. As shown in FIG. 4B, the fuel gas is supplied with combustion heat from the combustion region when flowing through the second reforming chamber 16 in contact with the hollowed portion 14, and further becomes a fuel gas whose temperature has risen. To be supplied.

  Although FIG. 4 shows an example in which the reforming catalyst 17 is not provided around the hollowed portion 14, the reforming catalyst 17 may also be provided around the hollowed portion 14. Thereby, supply of raw fuel gas to the gas tank 4 can be reduced.

  A reformer 18 constituting still another embodiment of the cell stack apparatus of the present invention will be described with reference to FIG. In FIG. 5B as well, arrows indicate the flow of various gases flowing through the reformer 18.

  The reformer 18 shown in FIG. 5 is provided with a plurality of hollow portions 20 in the temperature raising chamber 19, and the other configuration is the same as that of the reformer 18. The reformer 18 is provided with a plurality of hollow portions 20 in the width direction of the fuel cell 2 along the cell arrangement direction. Since a plurality of hollow portions 20 are provided, various gases flowing through the temperature raising chamber 19 can be further heated by combustion heat, and high-temperature fuel gas can be supplied to the gas tank 4. Thereby, the power generation efficiency of the cell stack apparatus 1 can be improved.

  In addition, since the hollow portion 20 is provided along the cell arrangement direction, it is difficult to hinder the flow of various gases flowing in the temperature rising chamber 19. Thereby, the residence of various gases in the temperature raising chamber 19 can be reduced.

  FIG. 6 is an external perspective view showing an example of the fuel cell module 30 (hereinafter sometimes referred to as a module) of the present invention in which the above-described cell stack device 1 is housed in the housing container 31. In addition, as the cell stack apparatus 1, the state which removed the modifier 7 is shown.

  Further, in the module 30 shown in FIG. 6, a part (front and rear surfaces) of the storage container 31 is removed, and the cell stack device 1 (shown with the reformer 6 removed in FIG. 6) stored inside. The state taken out backward is shown. Below, the storage container 31 which comprises the module 30 is demonstrated.

  FIG. 7 is a cross-sectional view schematically showing an example of the module 30. The storage container 31 constituting the module 30 is formed with an outer frame of the storage container 31 by an outer wall 32, and a power generation chamber 49 for storing the fuel cell 2 (cell stack 3) is formed therein.

  In such a storage container 31, air or exhaust gas is allowed to flow between the side part along the arrangement direction of the fuel cells 2 constituting the cell stack 3 and the outer wall of the storage container 31 facing the side part. The flow path is provided.

  Here, in the storage container 31, a first wall 33 is formed inside the outer wall 32 with a predetermined interval, and a second wall 34 is arranged inside the first wall 33 with a predetermined interval. Furthermore, a third wall 35 is arranged inside the second wall 34 with a predetermined interval.

  Thereby, the space formed by the outer wall 32 and the first wall 33 becomes the first storage container flow path 36, and the space formed by the second wall 34 and the third wall 35 is the second storage. A space formed by the first wall 33 and the second wall 34 becomes the container flow path 37, and becomes a third storage container flow path 38.

  In the storage container 31 shown in FIG. 7, the upper end of the first wall 33 is connected to the second wall 34, and the second wall 34 is connected to the upper wall (outer wall 32) of the storage container 31. The upper end of the third wall 35 is connected to the second wall 34.

  In addition, an air supply pipe 39 for supplying air (oxygen-containing gas) into the storage container 31 is connected to the bottom of the storage container 31, and the air supplied from the air supply pipe 39 is the air introduction part 40. Flowing into. Since the air introduction part 40 is connected to the first end container flow path 36 by the air introduction port 41, the air flowing through the air introduction part 40 flows to the first storage container flow path 36 through the air introduction port 41. The air that has flowed upward in the first storage container flow path 36 flows into the second storage container flow path 37 through the air circulation port 42 provided in the second wall 34. The air flowing downward through the second storage container channel 37 is supplied into the power generation chamber 49 through the air outlet 43 provided in the third wall 35.

  On the other hand, the exhaust gas discharged from the fuel cell 2 and the exhaust gas generated by burning the fuel gas not used for power generation on the upper end side of the fuel cell 2 are exhaust gas circulation provided on the second wall 39. It flows into the third storage container flow path 38 through the port 44. The exhaust gas flowing downward through the third storage container flow path 38 flows to the exhaust gas collection unit 46 through the exhaust gas collection port 45 and then passes through the exhaust gas exhaust pipe 47 connected to the exhaust gas collection unit 46. Exhausted outside.

  Therefore, the air supplied from the air introduction pipe 39 is heat-exchanged with the exhaust gas flowing through the exhaust gas collection unit 46 while flowing through the air introduction unit 40, and the third Heat exchange with the exhaust gas flowing through the storage container flow path 38 and heat exchange with the heat in the power generation chamber 49 while flowing through the second storage container flow path 37.

  7 shows an example in which the exhaust gas exhaust pipe 47 is located inside the air introduction pipe 39, but it is also possible to provide the air introduction pipe 39 so as to be located inside the exhaust gas exhaust pipe 47. Further, the air introduction pipe 39 and the exhaust gas exhaust pipe 47 can be provided with their positions shifted.

  Here, in the module 30 shown in FIG. 7, the heat insulating material 48 (the heat insulating material 48 is indicated by hatching in the drawing) is fixed to the second wall 38 side in the third storage container flow path 38. Are arranged. Thereby, heat exchange between the air flowing through the second storage container flow path 37 and the exhaust gas flowing through the third storage container flow path 38 can be suppressed, and the temperature of the air flowing through the second storage container flow path 37 can be suppressed. Can be suppressed.

  Thereby, it can suppress that the temperature of the air supplied to the fuel cell 2 falls, and since it can supply high temperature air to the fuel cell 2, it can be set as the module 30 with high electric power generation efficiency.

The heat insulating material 48 disposed in the third storage container flow path 38 is preferably larger than the outer shape of the side portion along the arrangement direction of the fuel cells 2 constituting the cell stack 3. Thereby, heat exchange between the air flowing through the second storage container channel 37 and the exhaust gas flowing through the third storage container channel 38 can be efficiently suppressed.

  In addition to the third storage container flow path 38, the heat insulating material 48 radiates the heat in the storage container 31 extremely, and the temperature of the fuel cell 2 (cell stack 3) decreases and the power generation amount does not decrease. In FIG. 7, in addition to the third storage container flow path 38, the bottom of the gas tank 4, both side surfaces of the fuel cell 2 (cell stack 3), and the top of the storage container 31 are shown in FIG. 7. The example provided between the wall (outer wall 32) and the reformer 6 is shown.

  Here, in the heat insulating material 48 arranged on both side surfaces of the cell stack 3 (fuel cell 2), a hole for allowing air to flow to the fuel cell 2 side is provided corresponding to the air outlet 36. It has been.

  The air supplied from the air outlet 43 into the power generation chamber 49 flows from the lower end side of the fuel cell 2 toward the upper end side, so that the fuel cell 2 can generate power efficiently.

  By storing the cell stack device 1 with improved power generation efficiency in the power generation chamber 49 of the storage container as described above, the module 30 with improved power generation efficiency can be obtained.

  And in this invention, it can be set as the fuel cell apparatus of this invention by accommodating the module 30 mentioned above and the auxiliary machine for operating the cell stack apparatus 1 in an exterior case. The exterior case is divided into upper and lower parts by a partition member, the module 30 is accommodated in the upper room, and an auxiliary machine for operating the cell stack device 1 is accommodated in the lower room, so that a compact fuel cell device is provided. It can be.

  FIG. 8 shows an example of the fuel cell device of the present invention in which the fuel cell module 30 shown in FIG. 6 and an auxiliary machine (not shown) for operating the fuel cell module 30 are housed in an outer case. It is a disassembled perspective view shown. In FIG. 9, a part of the configuration is omitted.

  The fuel cell device 55 shown in FIG. 8 divides the inside of an outer case made up of a column 56 and an outer plate 57 by a partition plate 58, and a module storage chamber 59 for storing the above-described fuel cell module 30 on the upper side. The lower side is configured as an auxiliary equipment storage chamber 60 for storing auxiliary equipment for operating the fuel cell module 35. In addition, the auxiliary machine stored in the auxiliary machine storage chamber 60 is omitted.

  In addition, the partition plate 58 is provided with an air circulation port 61 for allowing the air in the auxiliary machine storage chamber 60 to flow toward the module storage chamber 59, and a part of the exterior plate 57 constituting the module storage chamber 59 is An exhaust port 62 for exhausting the air in the module storage chamber 59 is provided.

  In such a fuel cell device 55, as described above, the fuel cell module 30 with improved power generation efficiency is stored in the module storage chamber 59, and an auxiliary machine for operating the fuel cell module 30 is an auxiliary device storage chamber 60. Thus, the fuel cell device 55 with improved power generation efficiency can be obtained.

  Although the present invention has been described in detail above, the present invention is not limited to the above-described embodiments, and various modifications and improvements can be made without departing from the scope of the present invention.

  For example, although an example in which a plurality of hollow portions are provided along the cell arrangement direction has been shown, one end portion of the hollow portion provided on the side close to the fuel gas supply pipe may be directed to the fuel gas supply pipe. Thereby, the fuel gas can be easily guided to the fuel gas supply pipe. Further, one end of every hollow portion may be directed to the fuel gas supply pipe. Thereby, it becomes easier to supply the fuel gas to the fuel gas supply pipe.

1: Cell stack device 2: Fuel cell 3: Cell stack 4: Gas tanks 7, 15, 18: Reformer 8: Vaporization chamber 9: First reforming chamber 10: Temperature raising chamber 11: Raw fuel supply pipe 12: Fuel Gas supply pipes 14 and 20: hollow parts 16 and 19: second reforming chamber 30: fuel cell module 55: fuel cell device

Claims (5)

A plurality of fuel cells arranged in an upright state and electrically connected, and a cell stack configured to burn fuel gas not used for power generation on one end side of the fuel cells; and A cell stack device comprising: a reformer that performs steam reforming disposed separately on one end side of the cell stack;
The reformer is
A vaporization chamber disposed on one side in the arrangement direction of the fuel cells and vaporizing water supplied from the outside;
Comprising a reforming catalyst, the RuHara fuel gas is supplied through the vaporizing chamber with flow toward the other side in the arrangement direction of the fuel cells, reformed to the fuel gas in contact with the reforming catalyst A first reforming chamber;
An ascending position that is disposed in contact with the vaporization chamber and the first reforming chamber and flows the fuel gas supplied from the first reforming chamber from the other side to the one side in the arrangement direction of the fuel cells. With a greenhouse,
A cell stack apparatus comprising a hollow portion provided through the temperature raising chamber so that a lower surface of the vaporization chamber is exposed.   The cell stack apparatus according to claim 1, wherein the temperature raising chamber includes the reforming catalyst and also serves as a second reforming chamber.   The cell stack apparatus according to claim 1, wherein the reformer is provided with a plurality of the hollow portions.   A fuel cell module comprising the cell stack device according to any one of claims 1 to 3 stored in a storage container.   5. A fuel cell device comprising: the fuel cell module according to claim 4; and an auxiliary device for operating the cell stack device.

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