JP2001043886A - Fuel cell module - Google Patents

Abstract

PROBLEM TO BE SOLVED: To simplify module structure, reduce the number of constituting members and improve output density by forming a fuel chamber between a top plate and a tube plate arranged within a module main body surrounded with a heat insulating material, and installing a reaction tube composed of plural cell tubes so as to pass through the tube plate and face openings of both ends to the fuel chamber. SOLUTION: A cell chamber 10a of a module main body 10 is heated to working temperature, fuel gas 20 such as hydrogen is supplied from a fuel introduction pipe 16, and air 22 of an oxidizing agent gas is supplied from an air supply pipe 19. The fuel gas 20 supplied through the fuel introduction pipe 16 flows in a cell tube 15 from an opening 15a opened in the fuel chamber 13, is used in reaction, exhausted from an opening 15b of the other end, and flows in a cell tube 15 from an adjacent opening 15a. A supply tube of fuel or air is made unnecessary, the number of module constituting members can be reduced, and as a result, the number of seal components and current collecting components can be reduced.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cylindrical solid electrolyte fuel cell module for improving the module output density.

[0002]

2. Description of the Related Art FIG. 8 shows a schematic structure of a conventional cylindrical solid electrolyte fuel cell module.

[0003] As shown in FIG. 8, a top plate 02, an upper tube plate 03 and a lower tube plate 04 are provided in a module body 01 surrounded by a heat insulating material, and below the lower tube plate 04. ,
A battery chamber 01a is formed. On the other hand, a fuel supply chamber 05 is formed between the top plate 02 and the upper tube plate 03 of the module body 01. Further, a fuel discharge chamber 06 is formed between the upper tube sheet 03 and the lower tube sheet 04. An outer pipe 07 that communicates the fuel supply chamber 05 with the outside of the module main body 01 is connected to the top plate 02 of the fuel supply chamber 05 through the module main body 01. Inside the outer tube 07, a lower tube plate 04 is provided so as to communicate the fuel discharge chamber 06 with the outside of the module main body 01.
Is provided. A Ni-based catalyst is provided at the lower end of the outer tube 07 to reform the fuel gas.

A cell tube 010 having a unit cell film (not shown) formed on the outer peripheral surface of the lower tube sheet 04 has an upper end located in the fuel discharge chamber 06 and a lower part toward the module body 01. Of the battery chamber 01a. Inside the cell tube 010, a fuel injection pipe 011 penetrating the upper tube plate 03 is provided so as to communicate the lower inside of the cell tube 010 with the inside of the fuel supply chamber 05.

[0005] Inside the guide tube 011, the upper end is located in the fuel supply chamber 05 and the lower end is located in the cell tube 01.
A current collecting rod 012 is provided near the lower end of the zero. The lower end of the current collecting rod 012 is electrically connected to the unit cell membrane and connected to a current collecting member 013 that closes the lower end of the cell tube 010. The upper end of the current collecting rod 012 is electrically connected to the outside of the module main body 01 via a nickel current collecting member 013 and a conductive rod 014. On the other hand, a current collecting connector 015 that is electrically connected to the unit cell membrane is attached to the upper end of the cell tube 010. The current collecting connector 015 is connected to another cell tube 01 and the current collecting connector (Ni felt). ) 015 are connected in parallel. The cell tubes are connected in series depending on the mounting orientation of the upper and lower ends of the cell tubes.

A porous ceramic partition plate 016 is provided below the battery chamber 01a of the module main body 01. Below the partition plate 016, an air preheating chamber 017 communicating with the battery chamber 01a via the partition plate 016 is provided. An air supply pipe 018 communicating with the outside of the module main body 01 is connected to the air preheating chamber 017. Also, the battery compartment 01 of the module body 01
One end of the air discharge pipe 019 is located inside a. The other end of the air discharge pipe 019 is located outside the module main body 01, and the middle part is the air preheating chamber 017.
It is arranged so as to pass through the inside and heat exchange is performed.

The operation of the cylindrical solid electrolyte fuel cell module having such a structure will be described below.

The inside of the battery chamber 01a of the module body 01 is heated to the operating temperature (about 900 to 1000 ° C.), and the outer tube 07 is heated.
Supplies a fuel gas 020 such as hydrogen, and supplies air 021 which is an oxidizing gas from an air supply pipe 018. The fuel gas 020 supplied via the outer pipe 07 is
The fuel flows from the fuel supply chamber 05 to the lower end of the cell tube 010 via the injection pipe 011. On the other hand, the air preheating chamber 017
The air 021 that has passed through the partition plate 016 through the battery compartment 0
1a.

[0009] When the fuel 020 passes through the porous base tube of the cell tube 010 and is supplied to a unit cell membrane (not shown), and the air (oxygen) 021 contacts the unit cell membrane,
The cell membrane electrochemically reacts hydrogen and air (oxygen) to generate electric power, and the electric power is sent to the outside via the current collecting member 013 and the conductive rod 014.

[0010] The remaining fuel gas 02 after being supplied for power generation
2 flows into the fuel discharge chamber 06 from the upper end of the cell tube 010 and is discharged to the outside through the inner pipe 08,
The remaining air 023 after being supplied to the power generation is supplied to the air discharge pipe 019
Is discharged to the outside through

[0011]

In the cylindrical solid electrolyte fuel cell module as described above, the operating temperature is high (around 900 to 1100 ° C.), so that the top plate 02, The material of the upper tube sheet 03 and the lower tube sheet 04 must be made of a heat-resistant alloy. This is because the fuel supply and discharge pipes such as the injection pipe 011 are made of ceramics, so they are fragile. Because there is.

Further, since the top plate 02, the upper tube plate 03, and the lower tube plate 04 have to be thickened in consideration of durability so as not to cause distortion, the manufacturing cost is further improved. Has become.

In view of the above problems, an object of the present invention is to provide a fuel cell module in which the module structure is simplified, the number of module components is reduced, the manufacturing cost is reduced, and the output density is improved. I do.

[0014]

According to a first aspect of the present invention, a unit cell film is formed on an outer peripheral surface of a battery chamber under an operating temperature environment by oxidizing gas and fuel gas. In the cylindrical solid electrolyte fuel cell module in which the oxidant gas and the fuel gas are electrochemically reacted with each other to obtain electric power,
A module body surrounded by a heat insulating material, a top plate and a tube sheet disposed in the module body, and a space between the top plate and the tube sheet as a fuel chamber, penetrating the tube sheet, and entering the fuel chamber A reaction tube comprising a plurality of cell tubes provided so as to face the openings at both ends.

According to a second aspect of the present invention, in the first aspect, the reaction tube is formed by continuously turning the inside of the battery chamber, and the fuel is supplied from the inlet end of the cell tube of the continuously formed reaction tube. In addition, the fuel discharge gas is discharged from the final end of the continuously formed cell tube of the reaction tube, and power is generated while continuously supplying the supplied fuel.

The invention according to claim 3 is characterized in that, in claim 1 or 2, the cell tube is a U-shaped tube.

According to a fourth aspect of the present invention, in the first or second aspect, the cell tube is a cylindrical tube and ends of the air chamber are connected by a communication member.

[0018]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the fuel cell module according to the present invention will be described below, but the present invention is not limited to these embodiments.

[First Embodiment] A first embodiment of the present invention will be described with reference to FIGS. FIG. 1 is a schematic diagram of a fuel cell module, and FIG. 2 is a schematic diagram of a U-shaped cell tube provided in the module. As shown in FIG. 1, in the fuel cell module according to the present embodiment, a unit cell membrane is formed on the outer peripheral surface of a battery chamber under an operating temperature environment by using a fuel gas (eg, hydrogen) and an oxidizing gas (eg, air). In a cylindrical solid electrolyte fuel cell module in which the oxidant gas and the fuel gas are electrochemically reacted to obtain electric power by supplying the oxidant gas and the fuel gas to the membrane-formed cell tube, a module surrounded by a heat insulating material Body 10
A top plate 11 and a tube plate 12 disposed in the module main body 10; a fuel chamber 13 formed between the top plate 11 and the tube plate 12; Room 13
A reaction tube composed of a plurality of cell tubes 15 provided so as to face the openings 15a and 15b at both ends, a fuel introduction tube 16 for introducing the fuel 20 from one end of the module body 10, and a fuel introduction tube from the other end. A fuel discharge pipe 17 for discharging the fuel 21 of the reaction, a partition member 18 for separating a supply side and a discharge side of the supplied fuel gas 20, and an air 22 is provided from one end provided at the lower end of the module body 10. It comprises an air introduction pipe 19 and an air discharge pipe 20 for discharging exhaust air 23 from the other end. In the present invention, the supplied fuel is continuously supplied without using a fuel injection pipe for supplying the fuel into the cell tube as in the related art.

Although two cell tubes are shown in FIG. 1 for the purpose of explanation, a plurality of cell tubes are appropriately arranged in the module main body 11 so as to reach a predetermined power generation level.

The fuel chamber 13 has a function of supplying fuel into the cell tube and a function of discharging fuel from the cell tube. In the present invention, the fuel supply side means a side in which fuel flows through the fuel chamber 13 from above and reacts in the reaction tube, and the fuel discharge side flows fuel through the fuel chamber 13 from below and reacts in the reaction tube. This is the side that lets you.

In the fuel chamber 13, a fuel introduction pipe 16 for communicating the fuel chamber 13 with the outside of the module body 10 is provided.
Are connected. Inside the fuel introduction pipe 16, a fuel discharge pipe 17 for discharging unreacted fuel 21 from the final end of the continuously formed reaction pipe is provided as an inner pipe. When hydrogen of the fuel gas is supplied by a reforming reaction, a catalyst (for example, a Ni-based catalyst or the like) may be provided inside the fuel introduction pipe 16.

Hereinafter, the module structure of the present embodiment will be described in detail. On the tube sheet 12, a cell tube 15 having a unit cell film (not shown) formed on the outer peripheral surface is positioned so that both end openings 15a and 15b face the inside of the fuel chamber 13, and a lower side. Of the U-tube 15c to the battery chamber 11a
It is penetrated and supported so as to be positioned inside.

The first opening 15a on the fuel supply end side of the cell tube 15 is connected to the outside of the module body 10 through a nickel current collecting felt 25a and a conductive rod 25b which are electrically connected to the unit cell membrane. (Positive side). On the other hand, a current collecting connector 26 that is electrically connected to the unit cell membrane is attached to an opening of the cell tube 15 from which the fuel is discharged and supplied, and the current collecting connector 26 is connected to another adjacent cell. The cell tube 15 and the current collecting connector 26 are connected in series. The last opening 15b on the fuel discharge end side of the cell tube 15 is electrically connected to the outside of the module body 10 through a nickel current collecting felt 25a and a conductive rod 25b that are electrically connected to the unit cell membrane. (Negative electrode side).

A porous ceramic partition plate 27 is provided below the battery chamber 10a of the module body 10. Below the partition plate 27, the partition plate 27
There is provided an air preheating chamber 28 which communicates with the battery chamber 10a through the air. An air supply pipe 19 communicating with the outside of the module main body 10 is connected to the air preheating chamber 28. One end side of the air discharge pipe 20 is located inside the battery chamber 10a of the module body 10. The other end of the air discharge pipe 20 is located outside the module main body 10, and a middle portion thereof is disposed so as to pass through the inside of the air preheating chamber 28, and heat exchange is performed.

The partition member 18 for separating the supply side and the discharge side of the fuel gas 20 to be supplied is for continuously supplying the fuel 20 to be supplied into the continuously formed reaction tube, and is used for discharging the fuel gas 20. The supplied fuel is sequentially supplied into the next cell tube.

FIG. 2 is a schematic view of the cell tube 15.
As shown in FIG. 2, the cell tube 15 includes a base tube 31, a fuel electrode 32 provided on the surface of the base tube 31, and a fuel electrode 3.
The electrolyte 33 made of oxygen-ion electric motor provided on the surface of the electrode 2 and the air electrode 34 provided on the surface of the
These are formed by forming a film with the interconnector 36 interposed therebetween. A lead film 37 is provided on the interconnector 36 at the final end on the lower end side of the cell tube 15. Outside the lead film 37, a confidential airtight film 3 is provided.
9 is formed. The other end of the base tube 31 has U
The pipe 40 is joined at the joint 41. The U-shaped tube 40
Is made of the same material as the base tube or a material having a current collecting property, and a current collecting film 42 of the same material as that of the interconnector 36 and an airtight film 43 for maintaining airtightness are formed on the outside thereof.

The unit cell membrane 356 may be formed on the U-shaped tube to improve the power generation density.

The operation of the cylindrical solid electrolyte fuel cell module having such a structure will be described below.

The inside of the battery chamber 10a of the module main body 10 is heated to an operating temperature (about 900 to 1000 ° C.), a fuel gas 20 such as hydrogen is supplied from a fuel introduction pipe 16 and an oxidant gas is supplied from an air supply pipe 19 to the fuel cell. A certain air 22 is supplied. Fuel gas 20 supplied via fuel introduction pipe 16
Flows into the cell tube 15 from an opening 15a opening to the fuel chamber 13. The fuel gas that has flowed into the cell tube 15 is subjected to the reaction and is discharged from the opening 15b at the other end.
It flows into the cell tube 15 from the adjacent opening 15a. The fuel gas supplied to the last cell tube is discharged from the discharge pipe 17 to the outside. The fuel gas 20 to be supplied is preheated by the double pipe structure.

When a catalyst is provided in the fuel introduction pipe 16 to reform the fuel gas to generate hydrogen, a gas such as methane or propane can be used as the gas to be introduced.

The fuel 20 passes through the porous base tube of the cell tube 15 and is supplied to a unit cell membrane (not shown).
When the air (oxygen) 22 contacts the unit cell membrane, the unit cell membrane electrochemically reacts hydrogen and air (oxygen) to generate electric power, and the electric power is generated by the current collecting member 25a and the conductive rod 2.
5b.

It should be noted that the exhaust air 23 after being subjected to power generation is
The air is discharged to the outside via the air discharge pipe 24.

According to the present embodiment, a fuel or air injection pipe, which is indispensable for a conventional cell tube of a cylindrical fuel cell, becomes unnecessary, and the module components can be saved. Also, as a result of this labor saving, the number of seal components and current collecting components is reduced by half. Further, an expensive high-temperature-resistant supporting tube plate for supporting the fuel or air injection pipe is not required, and the production cost of the module is reduced. Further, conventionally, since the injection tube and the cell tube had a double structure, the tube plate was thickened to prevent contact or the like due to the occurrence of distortion. Since the cell tube may be supported on the tube sheet, the thickness of the tube sheet can be made smaller than before. Furthermore, since the mounting density of the cell tubes can be improved, the output density of the entire module can be improved.

[Second Embodiment] A second embodiment of the present invention will be described with reference to FIGS. 3 is a schematic perspective view of the fuel cell module. FIG. 4 is a view of the fuel cell module as viewed in the direction of arrow A, FIG. 5 is a view of the fuel cell module as viewed in the direction of arrow B, and FIG. It is the schematic of the cell tube arrange | positioned. In the above-described first embodiment, the lower end side of the cell tube is connected by a U-shaped tube to form a continuous reaction tube. However, in the present embodiment, a fuel communication member is provided instead of using a U-shaped tube to provide a fuel communication member. The gas is supplied continuously. In this embodiment, the module structure is omitted.

As shown in FIGS. 3 to 5, in this embodiment, a top plate 11 is provided in a module body (not shown).
And the top plate 11 and the top plate 1 are provided.
2 is defined as a fuel chamber 13. In the tube sheet 12,
A plurality of cell tubes 50 penetrating through the tube sheet 12 and facing the openings 50a, 50b at both ends in the fuel chamber 13 are provided via fastening means 51 such as a holding ring 51a and a nut 51b. I have. A dense sealing member 53 such as zirconia is provided around the cell tube 50 via an airtight bonding film 52.

In the present embodiment, three supply-side cell tubes 50 for reacting while supplying fuel downward and three discharge-side cell tubes 50 for reacting while supplying fuel upward are defined as one unit. Although a plurality of units are installed in the module main body, the present invention is not limited to this.

A partition member 18 for partitioning the fuel gas 20 to be supplied between a supply side and a discharge side in the fuel chamber 13 between the top plate 11 and the tube plate 12 is hung down from the top plate 11. A seal member 55 is provided on the tube sheet 12 side to separate the fuel supply side and the fuel discharge side.

A heat insulating material 56 is provided inside the battery chamber 10a to keep the battery chamber at a high temperature.

At the lower end of the cell tube 50, there is provided a seal cap 57 for integrally connecting the adjacent cell tubes 50 at the lower end.

At the lower end of the cell tube 50 in the seal cap 57, a current collecting rod 58 is disposed at the center, and a porous conductive current collecting member 60 having a plurality of fuel passage holes 59 is provided with a Ni current collecting member. It is mounted together with the member 61. The current collecting rods 58 are electrically connected to each other by the conductive rods 62 disposed on the seal cap 57. In addition, a sealing member 63 made of a porous material such as zirconia is provided through a sealing film 52 having a confidential property in order to seal the adjacent cell tubes 50. In addition, the cell tube 5
A current collecting cap 60 is provided on the upper end side between 0 and 50 to collect current.

FIG. 7 is a schematic view of the cell tube 50.
As shown in FIG. 7, the cell tube 50 includes a base tube 31, a fuel electrode 32 provided on the surface of the base tube 31, and a fuel electrode 3.
The electrolyte 33 made of oxygen-ion electric motor provided on the surface of the electrode 2 and the air electrode 34 provided on the surface of the
These are formed in a horizontal stripe shape with the interconnector 36 interposed therebetween. A lead film 37 is provided on the interconnector 36 at the final end on the lower end side of the cell tube 50. An airtight film 43 for maintaining airtightness is formed on the outer peripheral side of the lead film 37, and a current collecting film 42 electrically connected to the lead film 37 is formed on the inner side of the end of the base tube 31. ing.

The operation of the cylindrical solid electrolyte fuel cell module having such a structure will be described below.

The fuel gas 20 supplied from a fuel supply pipe (not shown) flows into the cell tube 50 from an opening 50 a opened in the fuel chamber 13. The fuel gas that has flowed into the cell tube 50 is subjected to a reaction, and the fuel that has reached the lower end of the cell tube 50 is folded back in the seal cap 52, rises in the cell tube 50, and rises in the fuel chamber 13 through the opening 50b. Is discharged. Next, it is sequentially supplied into the adjacent cell tube 50 into the downstream cell tube 50 and is used for power generation. Then, the final cell tube 50
Unreacted fuel gas that has been supplied is discharged outside through a discharge pipe.

According to the present embodiment, a fuel or air injection pipe, which is indispensable for a conventional cell tube of a cylindrical fuel cell, is not required, and the module components can be saved. Also, as a result of this labor saving, the number of seal components and current collecting components is reduced by half. Further, an expensive high-temperature-resistant supporting tube plate for supporting the fuel or air injection pipe is not required, and the production cost of the module is reduced. Also, unlike the first embodiment, a cylindrical tube cell tube currently used can be used without joining a U-shaped tube. Conventionally, since the injection tube and the cell tube were double-structured, the tube plate was thickened to prevent contact due to the occurrence of distortion. Since it is sufficient to support the cell tube, the thickness of the tube sheet can be made smaller than before. Furthermore, since the mounting density of the cell tubes can be improved, the output density of the entire module can be improved.

In the present invention, the fuel supply is made inside the cell tube, and the air supply is made outside the cell tube. However, the present invention is not limited to this. The air supply is made inside the cell tube, and the fuel supply is made outside the cell tube. May be reversed.

[0047]

As described above, according to the first aspect of the present invention, a unit cell film is formed by forming an oxidizing gas and a fuel gas on the outer peripheral surface of a battery chamber under an operating temperature environment. In a cylindrical solid electrolyte fuel cell module in which the oxidant gas and the fuel gas are electrochemically reacted to obtain electric power by supplying the oxidant gas and the fuel gas to the cell tube, a module body surrounded by a heat insulating material; A top plate and a tube plate disposed in the module main body, and a plurality of fuel plates provided between the top plate and the tube plate as a fuel chamber, penetrating the tube plate, and facing the openings at both ends into the fuel chamber. And a reaction tube composed of the above-mentioned cell tube, so that a fuel or air injection tube, which is indispensable in a conventional cell tube of a cylindrical fuel cell, is not required, and the module components can be saved. Can be. Also, as a result of this labor saving, the number of seal components and current collecting components is reduced by half. Further, an expensive high-temperature-resistant supporting tube plate for supporting the fuel or air injection pipe is not required, and the production cost of the module is reduced. Furthermore, since the mounting density of the cell tubes can be improved, the output density of the entire module can be improved.

According to a second aspect of the present invention, a reaction tube is formed by continuously turning the inside of the battery chamber, fuel is supplied from the inlet end of a cell tube of the continuously formed reaction tube, and the reaction tube is continuously formed. Since the fuel exhaust gas is discharged from the final end of the cell tube of the reaction tube formed in the above, and the supplied fuel is continuously supplied to generate power, the mounting density of the cell tubes can be improved, so that the entire module can be improved. Output density can be improved.

According to a third aspect of the present invention, in the first or second aspect, since the cell tube is a U-shaped tube, fuel or air which is indispensable in a conventional cell tube of a cylindrical fuel cell is used. The need for an injection tube is eliminated, so that the power consumption of the module components can be reduced, and the output density of the entire module can be improved by forming the power generation film on the U-shaped tube portion.

According to a fourth aspect of the present invention, in the first or second aspect, the cell tube is a cylindrical tube, and the ends in the air chamber are connected by a communication member. Instead, it is possible to use a cylindrical cell tube currently used. Further, the filling density of the cell tube can be improved as compared with the U-shaped tube, and the output density of the entire module can be improved.

[Brief description of the drawings]

FIG. 1 is a schematic diagram of a fuel cell module according to an embodiment.

FIG. 2 is a schematic view of a U-shaped cell tube arranged in a module.

FIG. 3 is a schematic perspective view of a fuel cell module.

FIG. 4 is a view taken in the direction of arrow A in FIG. 3;

FIG. 5 is a view taken in the direction of arrow B in FIG. 3;

FIG. 6 is a sectional view taken along line CC of FIG. 5;

FIG. 7 is a schematic view of a cell tube.

FIG. 8 is a schematic view of a conventional fuel cell module.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Module main body 11 Top plate 12 Tube plate 13 Fuel chamber 15a, 15b opening 15 Cell tube 16 Fuel introduction pipe 17 Fuel discharge pipe 18 Partition member 19 Air introduction pipe 20 Fuel 21 Unreacted fuel 22 Air 23 Exhaust air 24 Air exhaust Tube 25a current collecting felt 25b conductive rod 26 current collecting connector 27 partitioning plate 28 air preheating chamber 50a, 50b opening 50 cell tube 52 airtight bonding film 53 sealing member 55 sealing member 57 seal cap 58 current collecting rod 59 fuel passage hole 60 Sealing member 61 Ni current collecting member 62 Conductive rod 63 Sealing member 31 Base tube 32 Fuel electrode 33 Electrolyte 34 Air electrode 35 Interconnector 37 Lead film 39 Airtight film 40 U-shaped tube 41 Joint 42 Current collecting film 43 Airtight film

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Kazuo Tomita 1-1, Akunoura-cho, Nagasaki-shi, Nagasaki Mitsubishi Heavy Industries, Ltd. Nagasaki Shipyard (72) Inventor Junichi Kamimae 1-1, Akunoura-cho, Nagasaki-shi, Nagasaki Mitsubishi (72) Inventor, Yukio Yoshida 2-5-1 Marunouchi, Chiyoda-ku, Tokyo Mitsui Heavy Industries, Ltd. (72) Inventor Yasushi Mori, 2-5-1 Marunouchi, Chiyoda-ku, Tokyo Fishi term in Mitsuishi Heavy Industries, Ltd. (reference) 5H026 AA06 CC06 CV02 CX06 CX10

Claims (4)

[Claims] An oxidizing gas and a fuel gas are supplied to a cell tube formed by forming a unit cell film on an outer peripheral surface in a battery chamber under an operating temperature environment, so that the oxidizing gas and the fuel gas are separated from each other. In a cylindrical solid electrolyte fuel cell module configured to obtain electric power by electrochemical reaction, a module main body surrounded by a heat insulating material, a top plate and a tube plate arranged in the module main body, and the top plate And a tube plate as a fuel chamber, comprising a reaction tube comprising a plurality of cell tubes provided so as to penetrate the tube plate and face the openings at both ends in the fuel chamber. Fuel cell module. 2. The reaction tube according to claim 1, wherein a reaction tube is formed by continuously turning the inside of the battery chamber, and fuel is supplied from an inlet end of a cell tube of the continuously formed reaction tube and formed continuously. A cylindrical solid electrolyte fuel cell module, characterized in that a fuel exhaust gas is discharged from a final end of a cell tube of a reaction tube and power is supplied while continuously supplying supplied fuel. 3. The fuel cell module according to claim 1, wherein the cell tube is a U-shaped tube. 4. The fuel cell module according to claim 1, wherein the cell tube is a cylindrical tube, and the ends in the air chamber are connected by a communication member.