Fuel cell power generation equipment

Abstract

To provide a fuel cell power generator capable of integrally transporting a fuel cell unit and an auxiliary machine unit.SOLUTION: A fuel cell power generator comprises a pallet having a longitudinal direction in a first direction, a fuel cell unit attached to an upper part of a first side in the first direction, and an auxiliary machine unit attached to an upper part of a second side opposite to the first side in the first direction. The pallet comprises: a first frame member extending in the first direction, having a first placement part in which the fuel cell unit is placed on the first side of its upper part and a second placement part in which the auxiliary machine unit is placed on the second side of its upper part, and having a space opened on the first side: a second frame member being isolated from the first frame member in a second direction intersecting with the first direction, extending in the first direction, having a third placement part in which the fuel cell unit is placed on the first side of its upper part and a fourth placement part in which the auxiliary machine unit is placed on the second side of its upper part, and having a space opened on the first side: and a connection member connecting the first frame member with the second frame member.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] FIELD OF THE DISCLOSURE The present disclosure relates to fuel cell power plants. [Background technology]

[0002] Patent document 1 discloses a fuel cell module comprising a fuel cell stack, a plurality of auxiliary machines for driving the fuel cell stack, a plurality of maintenance parts, and a frame for supporting the fuel cell stack, the plurality of auxiliary machines, and the plurality of maintenance parts. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Publication No. 2022-086272 Summary of the Invention [Problem to be solved by the invention]

[0004] There is a demand for a fuel cell module such as that disclosed in Patent Document 1 to be transported and installed as a whole.

[0005] The present disclosure provides a fuel cell power generation system in which the fuel cell unit and the auxiliary unit can be transported as a single unit. [Means for solving the problem]

[0006] According to one aspect of the present disclosure, there is provided a fuel cell power generation device comprising: a pallet having a longitudinal direction in a first direction; a fuel cell unit attached to an upper part of a first side of the pallet in the first direction and having a fuel cell cell; and an auxiliary unit attached to an upper part of a second side of the pallet opposite the first side in the first direction and used to operate the fuel cell cell, wherein the pallet extends in the first direction and has a first mounting portion on an upper part of the first side on which the fuel cell unit is mounted and a second mounting portion on an upper part of the second side on which the auxiliary unit is mounted, and the pallet comprises a first frame member having an internal space open to the first side; a second frame member separated from the first frame member in a second direction intersecting the first direction and extending in the first direction, the second frame member having a third mounting portion on an upper part of the first side on which the fuel cell unit is mounted and a fourth mounting portion on an upper part of the second side on which the auxiliary unit is mounted, the second frame member having an internal space open to the first side; and a connecting member connecting the first frame member and the second frame member. [Effects of the Invention]

[0007] According to the fuel cell power generation system of the present disclosure, the fuel cell unit and the auxiliary unit can be transported as a unit. [Brief explanation of the drawings]

[0008] [Figure 1] FIG. 1 is a perspective view of a fuel cell power generation device according to a first embodiment. [Figure 2] FIG. 2 is a front view of the fuel cell power generator according to the first embodiment. [Figure 3] FIG. 3 is a rear view of the fuel cell power generator according to the first embodiment. [Figure 4] FIG. 4 is a plan view of the fuel cell power generator according to the first embodiment. [Figure 5] FIG. 5 is a diagram illustrating the configuration of the fuel cell power generator according to the first embodiment. [Figure 6] FIG. 6 is a perspective view of a pallet in the fuel cell power generation system according to the first embodiment. [Figure 7]FIG. 7 is a side view of a frame member provided on a pallet in the fuel cell power generation system according to the first embodiment. [Figure 8] FIG. 8 is a diagram showing a state in which forks are inserted into frame members provided on a pallet in the fuel cell power generation system according to the first embodiment. [Figure 9] FIG. 9 is a perspective view of a first modification of the fuel cell power generator according to the first embodiment. [Figure 10] FIG. 10 is a perspective view of a second modified example of the fuel cell power generator according to the first embodiment. [Figure 11] FIG. 11 is a perspective view of a mobile platform in Modification 2 of the fuel cell power generation system according to the first embodiment. [Figure 12] FIG. 12 is a side view of a mobile platform in Modification 2 of the fuel cell power generation system according to the first embodiment. [Figure 13] FIG. 13 is a bottom view of a transport platform in Modification 2 of the fuel cell power generation system according to the first embodiment. [Figure 14] FIG. 14 is a perspective view of a fuel cell power generator according to the second embodiment. [Figure 15] FIG. 15 is a perspective view of a mobile platform in a fuel cell power generation system according to the second embodiment. [Figure 16] FIG. 16 is a perspective view of a modified example of the fuel cell power generator according to the second embodiment. [Figure 17] FIG. 17 is a perspective view of a modified example of the transport platform for the fuel cell power generation system according to the second embodiment. [Figure 18] FIG. 18 is a diagram showing a modified example of the transport stand for the fuel cell power generation system according to the second embodiment in use. DETAILED DESCRIPTION OF THE INVENTION

[0009] Hereinafter, embodiments will be described with reference to the accompanying drawings. Note that the present disclosure is not limited to these examples, but is defined by the claims, and is intended to include all modifications within the meaning and scope of the claims.

[0010] In the description of the specification and drawings of each embodiment, components having substantially the same or corresponding functional configurations may be designated by the same reference numerals to avoid redundant explanation. In addition, the scale of each part in the drawings may differ from the actual scale to facilitate understanding.

[0011] In the directions of parallel, right-angle, orthogonal, horizontal, vertical, up-down, left-right, front-back, etc., deviations are permitted to the extent that they do not impair the effects of the embodiments. The shape of the corners is not limited to right angles and may be rounded. Parallel, right-angle, orthogonal, horizontal, and vertical may include approximately parallel, approximately right-angle, approximately orthogonal, approximately horizontal, and approximately vertical, respectively.

[0012] For example, "substantially parallel" means that even if two lines or two surfaces are not completely parallel to each other, they can be treated as parallel as long as it is within the range of manufacturing tolerance. As with "substantially parallel," "substantially right angle," "substantially perpendicular," "substantially horizontal," and "substantially vertical" are also intended to fall under the respective terms as long as the relative positional relationship between the two lines or two surfaces is within the range of manufacturing tolerance.

[0013] First Embodiment <Fuel cell power generation equipment> The fuel cell power generation apparatus according to the first embodiment includes a pallet having a longitudinal direction in a first direction. The fuel cell power generation apparatus according to the first embodiment also includes a fuel cell unit attached to an upper portion of a first side of the pallet in the first direction and including fuel cell cells. The fuel cell power generation apparatus according to the first embodiment also includes an auxiliary unit attached to an upper portion of a second side of the pallet opposite the first side in the first direction and used when operating the fuel cell cells.

[0014] The pallet of the fuel cell power generation system according to the first embodiment includes a first frame member, a second frame member, and a connecting member that connects the first frame member and the second frame member.

[0015] The first frame member extends in a first direction and has a first mounting portion on an upper first side on which the fuel cell unit is mounted and a second mounting portion on an upper second side on which the accessory unit is mounted. The first frame member also has an internal space with the first side open. For example, when transporting the fuel cell power generation system, one of the forks of a forklift is inserted into the space in the first frame member from the first side.

[0016] The second frame member is spaced from the first frame member in a second direction intersecting the first direction, extends in the first direction, and has a third mounting portion on a first side of an upper portion on which a fuel cell unit is mounted, and a fourth mounting portion on a second side of an upper portion on which an accessory unit is mounted. The second frame member has an internal space with an open first side. For example, when transporting the fuel cell power generation system, the other fork of a forklift is inserted into the space in the second frame member from the first side.

[0017]

[0023] Also, the fuel cell power generation apparatus according to the first embodiment will be described from another perspective. The fuel cell power generation apparatus according to the first embodiment comprises a mobile platform having a longitudinal direction in a first direction, and a fuel cell module including an auxiliary unit used when operating the fuel cell. The mobile platform in the fuel cell power generation apparatus according to the first embodiment comprises a first frame member and a second frame member having an internal space that is open on at least one of a first side in the first direction or a second side opposite to the first side. Furthermore, the second frame member in the fuel cell power generation apparatus according to the first embodiment is spaced apart from the first frame member in a second direction that intersects with the first direction. Furthermore, the first frame member and the second frame member in the fuel cell power generation apparatus according to the first embodiment each extend in the first direction. Furthermore, a fuel cell module is placed on top of each of the first frame member and the second frame member in the fuel cell power generation apparatus according to the first embodiment.

[0018] A fuel cell power generation system according to a first embodiment will be described. FIG. 1 is a perspective view of a fuel cell power generation system 1, which is an example of a fuel cell power generation system according to the first embodiment. FIG. 2 is a front view of a fuel cell power generation system 1, which is an example of a fuel cell power generation system according to the first embodiment. FIG. 3 is a rear view of a fuel cell power generation system 1, which is an example of a fuel cell power generation system according to the first embodiment. FIG. 4 is a plan view of a fuel cell power generation system 1, which is an example of a fuel cell power generation system according to the first embodiment. FIG. 5 is a diagram illustrating the configuration of a fuel cell power generation system 1, which is an example of a fuel cell power generation system according to the first embodiment.

[0019] For ease of explanation, the drawings include a virtual three-dimensional coordinate system (XYZ Cartesian coordinate system) consisting of mutually orthogonal X, Y, and Z axes (XYZ axes). For coordinate axes perpendicular to the paper surface of the drawings, a black circle within a circle indicates that the coordinate axis faces toward the front of the paper. A cross within a circle indicates that the coordinate axis faces away from the paper.

[0020] However, this coordinate system is defined for the purpose of explanation and does not limit the attitude of the fuel cell power generation system etc. according to the first embodiment.

[0021] In the following drawings, the X-axis direction is the direction in which the fuel cell unit 10 and the auxiliary unit 20 are aligned. The X-axis direction is parallel to the horizontal plane. The Y-axis direction is perpendicular to the X-axis direction and parallel to the horizontal plane. The Z-axis direction is perpendicular to the X-axis direction and the Y-axis direction. The Z-axis direction is perpendicular to the horizontal plane. In other words, the Z-axis direction is the vertical direction.

[0022] Additionally, a view of an object viewed from the +Y side along the Y-axis is called a front view, and a view of an object viewed from the -Y side is called a back view. Viewing an object from the +Y side along the Y-axis is called a front view, and viewing an object from the -Y side is called a back view. Viewing an object from the +Z side along the Z-axis is called a plan view, and viewing an object from the +Z side along the Z-axis is called a plan view.

[0023] With the front view as the reference, the X-axis direction is sometimes referred to as the left-right direction, the Y-axis direction as the front-back direction, and the Z-axis direction as the up-down direction. With respect to an object, the +X side is sometimes referred to as the left side, the -X side as the right side, the +Y side as the front side, the -Y side as the back side, the +Z side as the top side, and the -Z side as the bottom side.

[0024] The fuel cell power generation system 1 is a fuel cell that uses fuel cells. The fuel cell power generation system 1 is a chemical cell that uses hydrogen as fuel and converts chemical energy into electricity by reacting with oxygen in the air.

[0025] The fuel cell power generation system 1 includes a fuel cell unit 10 and an auxiliary unit 20. The fuel cell unit 10 and the auxiliary unit 20 may be collectively referred to as a fuel cell module 60. The fuel cell power generation system 1 also includes a pallet 30 that holds the fuel cell unit 10 and the auxiliary unit 20. The pallet 30 is an example of a mobile platform. In other words, the fuel cell power generation system 1 includes the pallet 30, which is an example of a mobile platform on which the fuel cell module 60 is placed. The mobile platform is not limited to a pallet, and may be, for example, any platform used when transporting the fuel cell module 60. The fuel cell power generation system 1 also includes insulating members 41a and 41b (see FIG. 6) between the fuel cell unit 10 and the pallet 30. The fuel cell power generation system 1 also includes insulating members 42a and 42b (see FIG. 6) between the auxiliary unit 20 and the pallet 30. In other words, the fuel cell power generation system 1 includes insulating members between the pallet 30 (mobile platform) and the fuel cell module 60. The insulating members are not necessarily required.

[0026] [Fuel cell unit 10] The fuel cell unit 10 generates electricity by chemically reacting hydrogen and oxygen. The fuel cell unit 10 is attached to the upper part of the +X side in the X-axis direction of the pallet 30. The fuel cell unit 10 includes fuel cells 11, a boost converter 12, a hydrogen pump 13, a coolant pump 14, and an air compressor 15.

[0027] The fuel cell 11 generates electricity by chemically reacting the supplied hydrogen SH with oxygen contained in the air SA. The fuel cell 11 is, for example, a polymer electrolyte fuel cell (PEFC). The fuel cell 11, which is a polymer electrolyte fuel cell, has a stack structure in which many unit cells are stacked.

[0028] A single cell in the fuel cell 11, which is a polymer electrolyte fuel cell, includes a membrane electrode assembly (MEA) having a polymer electrolyte membrane and a pair of electrodes provided on both sides of the polymer electrolyte membrane. The polymer electrolyte membrane selectively transports hydrogen ions. Each electrode is formed from a porous material. Each of the pair of electrodes includes a catalyst layer whose main component is carbon powder supporting a platinum-based metal catalyst (electrode catalyst), for example, and a gas diffusion layer that is both breathable and electronically conductive. The single cell also includes a pair of separators that sandwich the membrane electrode assembly (MEA) from both sides.

[0029] The electricity generated by the fuel cell 11 is boosted by the boost converter 12 and output as electric power EP. The boost converter 12 is, for example, a DC / DC converter.

[0030] The fuel cell 11 is cooled by a coolant CL1 that circulates between the fuel cell 11 and the auxiliary unit 20. The auxiliary unit 20 supplies a coolant CL1L, which is a low-temperature coolant CL1, to the fuel cell 11. The coolant CL1L is sent to the fuel cell 11 by a coolant pump 14. The coolant CL1L cools the fuel cell 11. The fuel cell unit 10 then discharges a coolant CL1H, which is the coolant CL1 that has cooled the fuel cell 11 and whose temperature has increased, to the auxiliary unit 20.

[0031] The boost converter 12 is also cooled by the coolant CL2 circulating between the boost converter 12 and the auxiliary unit 20. Similarly, the motor of the air compressor 15 is cooled by the coolant CL2 circulating between the boost converter 12 and the auxiliary unit 20. The auxiliary unit 20 supplies coolant CL2L, which is the low-temperature coolant CL2, to the boost converter 12 and the air compressor 15. The coolant CL2L cools the boost converter 12 and the motor of the air compressor 15. The fuel cell unit 10 then discharges coolant CL2H, which is the coolant CL2 whose temperature has increased after cooling the boost converter 12 and the motor of the air compressor 15, to the auxiliary unit 20.

[0032] Hydrogen SH is supplied to the fuel cell 11 provided in the fuel cell unit 10 through the auxiliary unit 20. Of the hydrogen SH supplied to the fuel cell 11, unreacted hydrogen that is discharged is returned to the fuel cell 11 by the hydrogen pump 13. In addition, air SA is supplied to the fuel cell unit 10 from the auxiliary unit 20. The air SA supplied from the auxiliary unit 20 is compressed by an air compressor 15 and supplied to the fuel cell 11.

[0033] [Auxiliary Unit 20] The auxiliary equipment unit 20 is used when operating the fuel cell cells 11 of the fuel cell unit 10. The auxiliary equipment unit 20 is attached to the upper part of the pallet 30 on the -X side in the X-axis direction. The auxiliary equipment unit 20 supplies coolant and the like to the fuel cell unit 10. The auxiliary equipment unit 20 includes a heat exchanger 21, a heat exchanger 22, a reservoir tank 23, a reservoir tank 24, an ion exchanger 25, an air filter 26, an electric circuit box 27, a coolant pump 28, and a gas-liquid separator 29.

[0034] (heat exchanger 21) The heat exchanger 21 exchanges heat between the coolant CL1 that has cooled the fuel cell 11 and the coolant CL that is supplied from an external cooling device 50. The heat exchanger 21 is, for example, a plate-type heat exchanger, particularly a brazed plate-type heat exchanger. The heat exchanger 21 cools the coolant CL1H that has returned from the fuel cell unit 10 after cooling the fuel cell 11 and whose temperature has increased, using the coolant CL that is supplied from the cooling device 50. The coolant CL1L that has been cooled by heat exchange in the heat exchanger 21 is then supplied to the fuel cell 11.

[0035] The external cooling device 50 supplies the coolant CLL, which is a low-temperature coolant CL, to the auxiliary unit 20. The cooling device 50 then recovers the coolant CLH, which is a high-temperature coolant CL, from the auxiliary unit 20. The cooling device 50 cools the recovered coolant CLH. The cooling device 50 then cools the coolant CLH and supplies the coolant CLL, whose temperature has been reduced, to the auxiliary unit 20.

[0036] Regarding the coolant CL, the heat exchanger 21 exchanges heat between the coolant CLaL, which is supplied by branching off from the coolant CLL, and the coolant CL1, and discharges the coolant CLaH, which has an increased temperature. The discharged coolant CLaH is combined with another coolant and returns to the cooling device 50 as the coolant CLH. Regarding the coolant CL1, the heat exchanger 21 exchanges heat between the coolant CL1H, which is supplied from the fuel cell 11, and the coolant CL, and discharges the coolant CL1L, which has a decreased temperature. The discharged coolant CL1L is supplied to the fuel cell unit 10.

[0037] In the heat exchanger 21, the coolant CL1H returning from the fuel cell unit 10 is introduced from the lower side of the heat exchanger 21. The coolant CL1L is discharged from the lower side of the heat exchanger 21. The coolant CLaL supplied from the cooling device 50 is introduced from the upper side of the heat exchanger 21. The coolant CLaH is discharged from the upper side of the heat exchanger 21.

[0038] (heat exchanger 22) The heat exchanger 22 exchanges heat between the coolant CL2 that has cooled the boost converter 12 and the coolant CL supplied from an external cooling device 50. The heat exchanger 22 is, for example, a plate-type heat exchanger, particularly a brazed plate-type heat exchanger. The heat exchanger 22 cools the coolant CL2H that has returned from the boost converter 12 and the air compressor 15 after cooling the boost converter 12 and the air compressor 15, respectively, with the coolant CL supplied from the cooling device 50. The coolant CL2L that has been cooled by heat exchange in the heat exchanger 21 is supplied to the boost converter 12 and the air compressor 15, respectively.

[0039] Regarding the coolant CL, the heat exchanger 22 exchanges heat between the coolant CLbL, which is supplied by branching off from the coolant CLL, and the coolant CL2, and discharges the coolant CLbH, which has an increased temperature. The discharged coolant CLbH is combined with another coolant and returns to the cooling device 50 as the coolant CLH. Regarding the coolant CL2, the heat exchanger 22 exchanges heat between the coolant CL2H, which is supplied from the boost converter 12 and the air compressor 15, and the coolant CL, and discharges the coolant CL2L, which has a decreased temperature. The discharged coolant CL2L is supplied to the boost converter 12 and the air compressor 15, respectively.

[0040] (Reservoir tank 23) The reservoir tank 23 is a tank that stores the coolant CL1 that cools the fuel cell 11. The reservoir tank 23 adjusts the increase or decrease of the coolant CL1 that cools the fuel cell 11. The reservoir tank 23 is provided above the auxiliary unit 20.

[0041] (Reservoir tank 24) The reservoir tank 24 is a tank that stores the coolant CL2 that cools the boost converter 12 and the air compressor 15. The reservoir tank 24 adjusts the increase or decrease of the coolant CL2 that cools the boost converter 12 and the air compressor 15. The reservoir tank 24 is provided above the auxiliary unit 20.

[0042] (Ion exchanger 25) The ion exchanger 25 removes impurity ions contained in the coolant CL1 that cools the fuel cell 11. A degassing unit 25a that exhausts air from the piping is provided in a piping connected to the ion exchanger 25. The degassing unit 25a is provided above the auxiliary unit 20.

[0043] (Air filter 26) The air filter 26 removes dust contained in the air SA and impurities that have a negative effect on the fuel cell. The air filter 26 filters the air SA supplied to the fuel cell unit 10. The air filter 26 supplies clean air to the fuel cell 11, from which dust contained in the air SA and impurities that have a negative effect on the fuel cell have been removed.

[0044] (Electrical Circuit Box 27) The electric circuit box 27 houses an electric circuit used to drive the fuel cell unit 10. The electric circuit box 27 includes a circuit board, a relay, and the like inside.

[0045] (Coolant Pump 28) The coolant pump 28 is a pump that sends the coolant CL2 to the boost converter 12 and the air compressor 15 of the fuel cell unit 10, respectively.

[0046] (Gas-liquid separator 29) The gas-liquid separator 29 separates the moisture EW contained in the exhaust gas EG from the fuel cell 11. The gas-liquid separator 29 discharges the moisture EW separated from the exhaust gas EG, and exhaust gas EA obtained by separating the moisture EW from the exhaust gas EG.

[0047] [Regarding the arrangement in the auxiliary unit 20] The auxiliary unit 20 includes a frame 20f. The frame 20f has a rectangular parallelepiped shape. The heat exchanger 21, the heat exchanger 22, the reservoir tank 23, the reservoir tank 24, the ion exchanger 25, the air filter 26, the electric circuit box 27, and the coolant pump 28 are provided in a space inside the frame 20f. The heat exchanger 21, the heat exchanger 22, the reservoir tank 23, the reservoir tank 24, the ion exchanger 25, the air filter 26, the electric circuit box 27, and the coolant pump 28 are also provided inside the frame 20f in a plan view. Note that the heat exchanger 21, the heat exchanger 22, the reservoir tank 23, the reservoir tank 24, the ion exchanger 25, etc. may be provided on the top surface of the frame 20f, for example, so that the devices are provided outside the frame 20f. In this case, even if they are outside the frame 20f, they are still provided inside the frame 20f in a plan view. By arranging the heat exchanger 21, the heat exchanger 22, the reservoir tank 23, the reservoir tank 24, the ion exchanger 25, the air filter 26, the electrical circuit box 27, and the coolant pump 28 in the space inside the frame 20f, these devices can be protected from external mechanical shocks.

[0048] The heat exchanger 21 is provided on the lower side (-Z side) and -X side inside the frame 20f. The heat exchanger 21 is one of the heaviest accessories provided in the accessory unit 20. Furthermore, when the weights of the fuel cell unit 10 and the accessory unit 20 are compared, the fuel cell unit 10 is heavier. Therefore, by providing the heavier heat exchanger 21 in the accessory unit 20 on the lower side (-Z side) and -X side inside the frame 20f, the overall weight balance of the fuel cell power generation system 1 can be improved.

[0049] The air filter 26 and the electric circuit box 27 are each provided at a position higher than the heat exchanger 21. By providing each air filter 26 at a position higher than the heat exchanger 21, it is possible to prevent the coolant CL1 from flowing into the air filter 26 when the coolant CL1 leaks. Furthermore, by providing the electric circuit box 27 at a position higher than the heat exchanger 21, it is possible to prevent the coolant CL1 from getting on the electric circuit box 27 when the coolant CL1 leaks. By preventing the coolant CL1 from getting on the electric circuit box 27, it is possible to prevent a current leak at the electric circuit box 27.

[0050] Furthermore, the air filter 26 and the electric circuit box 27 are provided at positions that do not overlap the heat exchanger 22, the ion exchanger 25, the reservoir tank 23, and the reservoir tank 24, respectively, in a plan view.

[0051] By arranging the air filter 26 in a position that does not overlap with the heat exchanger 22, the ion exchanger 25, the reservoir tank 23, and the reservoir tank 24 in a plan view, the coolant CL1 or the coolant CL2 can be prevented from flowing into the air filter 26 when the coolant CL1 or the coolant CL2 leaks.

[0052] By providing the electric circuit box 27 at a position that does not overlap with the heat exchanger 22, the ion exchanger 25, the reservoir tank 23, and the reservoir tank 24 in a plan view, when the coolant CL1 or CL2 leaks, the coolant CL1 or CL2 can be prevented from getting on the electric circuit box 27. By preventing the coolant CL1 or CL2 from getting on the electric circuit box 27, it is possible to prevent a current leak at the electric circuit box 27.

[0053] Ion exchanger 25 is provided above air filter 26. Meanwhile, the position at which the ion exchanger is connected to the pipe through which coolant CL1 flows is provided at a position that does not overlap, in plan view, with the intake port of air filter 26. By providing the position at which the ion exchanger is connected to the pipe through which coolant CL1 flows at a position that does not overlap, in plan view, with the intake port of air filter 26, it is possible to prevent coolant CL1 from flowing into air filter 26 when coolant CL1 leaks.

[0054] The temperature of the coolant CL1H recovered from the fuel cell unit 10 reaches approximately 70°C. Therefore, to prevent the electric circuits and the like housed in the electric circuit box 27 from becoming too hot, the electric circuit box 27 may be located away from the path through which the coolant CL1H passes. By providing the heat exchanger 21 below the auxiliary unit 20 and the electric circuit box 27 above the auxiliary unit 20, the temperature rise of the electric circuit box 27 due to the coolant CL1H can be suppressed.

[0055] The accessories included in the accessory unit 20 are not limited to the heat exchanger 21, the heat exchanger 22, the reservoir tank 23, the reservoir tank 24, the ion exchanger 25, the air filter 26, the electric circuit box 27, the coolant pump 28, and the gas-liquid separator 29. The accessories included in the accessory unit 20 may be an appropriate combination of the heat exchanger 21, the heat exchanger 22, the reservoir tank 23, the reservoir tank 24, the ion exchanger 25, the air filter 26, the electric circuit box 27, the coolant pump 28, and the gas-liquid separator 29. The accessories included in the accessory unit 20 are not limited to including all of the above-mentioned devices, and may include only some of them. For example, the air filter 26 may be provided separately from the accessory unit. The accessory unit may also include devices other than those listed above.

[0056] [Palette 30] FIG. 6 is a perspective view of a pallet 30 in the fuel cell power generation system 1, which is an example of a fuel cell power generation system according to the first embodiment. The pallet 30 holds and places the fuel cell unit 10 and the auxiliary unit 20 on it. When the fuel cell power generation system 1 is transported by a forklift, which is an example of transport equipment, the forks of the forklift are inserted into the pallet 30. The forks are an example of a loading member of the transport equipment. Note that the transport equipment is not limited to a forklift, but may be any equipment capable of transporting the fuel cell power generation system 1, such as a cargo handling vehicle, a crane, or a hand lifter. Furthermore, the loading member is not limited to a fork, but may be any member on which the fuel cell power generation system 1 can be placed.

[0057] Pallet 30 has a longitudinal direction in the X-axis direction. Pallet 30 includes square pipes 31 and 32 as an example of frame members. Pallet 30 also includes connecting members 33a, 33b, and 33c that connect square pipes 31 and 32 together.

[0058] (Square pipe 31) The square pipe 31 is a square pipe extending in the X-axis direction. The square pipe 31 has a mounting portion 31A on the upper part of the +X side on which the fuel cell unit 10 is mounted. The square pipe 31 also has a mounting portion 31B on the upper part of the -X side on which the auxiliary unit 20 is mounted.

[0059] When the fuel cell power generation system 1 is transported, one of the forks of a forklift is inserted into the square pipe 31 from the +X side in the direction indicated by the arrow FA.

[0060] The square pipe 31 has a mounting portion 31A on the +X side on which the fuel cell unit 10 is mounted. In the fuel cell power generation system 1, the fuel cell unit 10 is heavier than the auxiliary unit 20, so when transporting the fuel cell power generation system 1, it is advisable to insert the forks of a forklift from the +X side of the square pipe 31. The same applies to the square pipe 32.

[0061] The structure of the square pipe 31 will be described in more detail. Since the square pipe 32 has a similar structure to the square pipe 31, a detailed description of the square pipe 32 will be omitted and the description of the square pipe 31 will be referred to.

[0062] FIG. 7 is a side view of a square pipe 31 which is a frame member provided on a pallet 30 in a fuel cell power generator 1 which is an example of a fuel cell power generator according to the first embodiment.

[0063] The square pipe 31 has a rectangular cross section in the YZ plane perpendicular to the X-axis direction. The square pipe 31 includes a horizontal plate portion 31a, a vertical plate portion 31b, a horizontal plate portion 31c, and a vertical plate portion 31d. The +X side of the square pipe 31 is open. In other words, the square pipe 31 includes an open portion 31h1 (see FIG. 6) on the +X side. Similarly, the -X side of the square pipe 31 is open. In other words, the square pipe 31 includes an open portion 31h2 (see FIG. 6) on the -X side.

[0064] The horizontal plate portion 31a is a plate-like member parallel to the XY plane and having a longitudinal direction in the X-axis direction. The horizontal plate portion 31a has an upper surface 31aA on the +Z side and an inner surface 31aB on the -Z side. The square pipe 31 has mounting portions 31A and 31B on the upper surface 31aA. The forks of a forklift come into contact with the inner surface 31aB when transporting the fuel cell power generation system 1.

[0065] Vertical plate portion 31b is a plate-like member parallel to the ZX plane and having a longitudinal direction in the X-axis direction. Vertical plate portion 31b extends from the +Y side end of horizontal plate portion 31a to the -Z side. The -Z side of vertical plate portion 31b is connected to the +Y side of horizontal plate portion 31c.

[0066] The horizontal plate portion 31c is a plate-like member that is parallel to the XY plane and has a longitudinal direction in the X-axis direction. The horizontal plate portion 31c is provided on the -Z side of the horizontal plate portion 31a and is spaced apart from it.

[0067] Vertical plate portion 31d is a plate-like member that is parallel to the ZX plane and has a longitudinal direction in the X-axis direction. Vertical plate portion 31d is provided to extend from the -Y side end of horizontal plate portion 31a to the -Z side. The -Z side of vertical plate portion 31d is connected to the -Y side of horizontal plate portion 31c. Vertical plate portion 31d is provided at a distance from vertical plate portion 31b on the -Y side.

[0068] When the fuel cell power generator 1 is transported by a forklift, the vertical plate portions 31b and 31d prevent the forks from shifting in the horizontal direction (Y-axis direction) and the fuel cell power generator 1 from coming off the forks.

[0069] The square pipe 31 has a space 31S inside surrounded by horizontal plate portion 31a, vertical plate portion 31b, horizontal plate portion 31c, and vertical plate portion 31d. As described above, the space 31S is open to the +X side and the -X side. One of the forks of a forklift is inserted into the space 31S from the +X side of the square pipe 31. Figure 8 is a diagram showing a state in which a fork F is inserted into the square pipe 31, which is a frame member provided on the pallet 30 of the fuel cell power generation system 1, which is an example of the fuel cell power generation system according to the first embodiment. In Figure 8, the square pipe 31 is shown in cross section.

[0070] The square pipe 31 has an internal space 31S into which the forks F of a forklift are inserted. The width W in the Y-axis direction and the height H in the Z-axis direction of the space 31S are determined so that the forks F can be inserted into the space 31S. More specifically, the shape of the forks F is determined by factors such as the weight of the object to be transported, so the width W is made wider than the width of the forks F suitable for transporting the fuel cell power generation system 1, and the height H is made higher than the height of the forks F. For example, the width W of the space 31S is set to be approximately 1.1 to 1.3 times the width of the forks F. Furthermore, for example, the height H of the space 31S is set to be approximately 1.5 to 3.5 times the height of the forks F.

[0071] 8, the length of the fork F may be longer than the length L of the square pipe 31. Therefore, the space 31S may be formed along the longitudinal direction (X-axis direction) of the square pipe 31. Furthermore, the square pipe 31 is configured so that no protrusions or the like are provided on the inner surface 31aB, at least during transportation of the fuel cell power generation system 1. In other words, the inner surface 31aB is formed flat. It is desirable that no protrusions or the like are provided on the inner surfaces of the vertical plate portion 31b, the horizontal plate portion 31c, and the vertical plate portion 31d, at least during transportation of the fuel cell power generation system 1. Furthermore, if protrusions or the like are provided on the inner surfaces of the vertical plate portion 31b, the horizontal plate portion 31c, and the vertical plate portion 31d, it is desirable that the dimensions are such that the fork F can be inserted at least during transportation of the fuel cell power generation system 1. The same applies to the square pipe 32.

[0072] For example, when providing protrusions or the like on the outer surface of the square pipe 31, the protrusions or the like are attached to the outer surface of the square pipe 31 by welding or the like so that there are no protrusions or the like on the inside of the square pipe 31. When the fuel cell power generation system 1 is not being transported, the protrusions or the like may be present on the inside of the square pipe 31.

[0073] As described above, the space 31S of the square pipe 31 is formed so that the forks F of the forklift can be inserted from the +X side. In other words, the space 31S of the square pipe 31 is larger than the forks F of the forklift so that the forks F do not interfere with the square pipe 31 when inserted from the +X side.

[0074] When the fuel cell power generator 1 is not being transported, such as after installation, the open portion 31h1 and the open portion 31h2 may be covered with a cover or the like.

[0075] Furthermore, in the square pipe 31, the space 31S does not have to penetrate the square pipe 31 as long as a fork can be inserted therein. For example, the space 31S may be formed partway in the X-axis direction as long as a fork can be inserted therein. In other words, the square pipe 31 may have the open portion 31h1 but not the open portion 31h2, and the -X side of the square pipe 31 may be closed. The same applies to the square pipe 32.

[0076] (Square pipe 32) The square pipe 32 is a square pipe that extends in the X-axis direction. The square pipe 32 is provided at a distance from the square pipe 31 on the -Y side in the Y-axis direction. The square pipe 32 has a mounting portion 32A on an upper portion on the +X side on which the fuel cell unit 10 is mounted. The square pipe 32 also has a mounting portion 32B on an upper portion on the -X side on which the auxiliary unit 20 is mounted.

[0077] When the fuel cell power generation system 1 is transported, the other fork of the forklift is inserted into the +X side of the square pipe 32 in the direction indicated by the arrow FA.

[0078] As explained for the square pipe 31, the square pipe 32 has an opening 32h1 (see FIG. 6) on the +X side and an opening 32h2 (see FIG. 6) on the -X side. The square pipe 32 also has a space 32S inside. After the fuel cell power generation system 1 is installed, or when the fuel cell power generation system 1 is not being transported, the openings 32h1 and 32h2 may be covered with a cover or the like.

[0079] (Connecting member 33a, connecting member 33b, and connecting member 33c) The connecting member 33a, the connecting member 33b, and the connecting member 33c connect the square pipe 31 and the square pipe 32, respectively.

[0080] The pallet 30 in the fuel cell power generation system 1 according to the first embodiment includes square pipes 31 and 32 as frame members, but the frame members are not limited to square pipes. The frame members may be any member into which the forks of a forklift can be inserted. Shape steel, for example, lip-channel steel, or so-called C-channel steel, may also be used as the frame members.

[0081] For example, in the case where lip channel steel is used as a frame member, horizontal plate portion 31c is not included in the example shown in Figure 7. When lip channel steel is used as a frame member, the forks of a forklift are inserted into the space surrounded by horizontal plate portion 31a, vertical plate portion 31b, and vertical plate portion 31d.

[0082] Furthermore, in the above example, two square pipes are used as the frame members, but the number of square pipes may be three or more.

[0083] The transportation of the fuel cell power generation system according to the first embodiment is not limited to transportation by a forklift, and the fuel cell power generation system may be transported, for example, by inserting two lifters, one from the +X side and the other from the -X side, into the opening. Furthermore, for example, the fuel cell power generation system may be transported by passing a plate through each of the square pipes 31 and 32, which are the frame members, and lifting the plate with a crane or the like.

[0084] <Summary> According to the fuel cell power generation system of the first embodiment, the fuel cell unit and the auxiliary unit can be transported as a unit. According to the fuel cell power generation system of the first embodiment, the fuel cell unit and the auxiliary unit are attached together to a pallet, and the fuel cell power generation system can be transported by inserting the forks of a forklift into the pallet.

[0085] Furthermore, in the fuel cell power generation system according to the first embodiment, insulating members are provided between the fuel cell unit and the pallet, and between the auxiliary unit and the pallet, thereby isolating the fuel cell unit from the auxiliary unit. By insulating the fuel cell unit from the auxiliary unit, it becomes easier to investigate the cause of insulation deterioration.

[0086] Furthermore, in the fuel cell power generation system according to the first embodiment, the auxiliary equipment is stored in the space inside the frame of the auxiliary equipment unit, and is structured so that it does not protrude outside the frame, thereby preventing the auxiliary equipment from coming into contact with external structures or devices when transporting the fuel cell. Also, by storing the auxiliary equipment in the space inside the frame of the auxiliary equipment unit, and is structured so that it does not protrude outside the frame, the auxiliary equipment can be protected from external impacts, etc.

[0087] The X-axis direction is an example of a first direction, the Y-axis direction is an example of a second direction intersecting the first direction, the +X side is an example of a first side, and the -X side is an example of a second side opposite the first side. Furthermore, the square pipe 31 is an example of a first frame member, the square pipe 32 is an example of a second frame member, the placement portion 31A is an example of a first placement portion, the placement portion 31B is an example of a second placement portion, the placement portion 32A is an example of a third placement portion, and the placement portion 32B is an example of a fourth placement portion. Furthermore, the coolant CL1 is an example of a first coolant, and the coolant CL is an example of a second coolant.

[0088] <Variation 1> A first variant of the fuel cell power generation system according to the first embodiment will now be described. In the fuel cell power generation system 1, which is an example of the fuel cell power generation system according to the first embodiment, the fuel cell module 60 includes a fuel cell unit 10 and an auxiliary unit 20. The fuel cell module in the fuel cell power generation system according to the first embodiment is not limited to a system including a fuel cell unit and an auxiliary unit. The fuel cell module in the fuel cell power generation system according to the first embodiment may include a fuel cell module including a fuel cell cell and an auxiliary unit used to operate the fuel cell cell.

[0089] Variation 1 of the fuel cell power generator according to the first embodiment will be described in detail with reference to the drawings. Fig. 9 is a perspective view of a fuel cell power generator 101, which is an example of Variation 1 of the fuel cell power generator according to the first embodiment.

[0090] The fuel cell power generation system 101 includes a fuel cell module 160 instead of the fuel cell module 60 in the fuel cell power generation system 1. The fuel cell module 160 includes a fuel cell unit and auxiliary equipment used to operate the fuel cell. The fuel cell module 160 in the fuel cell power generation system 101 is placed on a pallet 30. As with the fuel cell power generation system 1, the fuel cell power generation system 101 is transported by a transport device. When the fuel cell power generation system 101 is transported, as with the fuel cell power generation system 1, a loading member of the transport device is inserted inside the pallet 30.

[0091] <Variation 2> Modification 2 of the fuel cell power generation system according to the first embodiment will be described. In fuel cell power generation system 1, which is an example of the fuel cell power generation system according to the first embodiment, pallet 30, which is an example of a mobile stand, uses square pipes 31 and 32 as examples of frame members. The frame members in the fuel cell power generation system according to the first embodiment are not limited to square pipes. In Modification 2 of the fuel cell power generation system according to the first embodiment, an example will be described in which members having a C-shaped (U-shaped) cross section are used as frame members.

[0092] Variation 2 of the fuel cell power generator according to embodiment 1 will now be described in detail with reference to the drawings. Fig. 10 is a perspective view of a fuel cell power generator 201, which is an example of variation 2 of the fuel cell power generator according to embodiment 1.

[0093] The fuel cell power generation system 201 has a mobile platform 230 instead of the pallet 30 in the fuel cell power generation system 101. The fuel cell module 160 in the fuel cell power generation system 210 is placed on the mobile platform 230. Like the fuel cell power generation systems 1 and 101, the fuel cell power generation system 201 is transported by a transport device. When the fuel cell power generation system 201 is transported, like the fuel cell power generation systems 1 and 101, a loading member of the transport device is inserted into the mobile platform 230.

[0094] [Mobile stand 230] Fig. 11 is a perspective view of the mobile platform 230 in the fuel cell power generation system 201, which is an example of Modification 2 of the fuel cell power generation system according to the first embodiment. Fig. 12 is a side view of the mobile platform 230 in the fuel cell power generation system 201, which is an example of Modification 2 of the fuel cell power generation system according to the first embodiment. Specifically, it is a side view seen from the +X side along the X-axis direction. Fig. 13 is a bottom view of the mobile platform 230 in the fuel cell power generation system 201, which is an example of Modification 2 of the fuel cell power generation system according to the first embodiment.

[0095] The moving platform 230 has a longitudinal direction in the X-axis direction.

[0096] The mobile platform 230 includes frame members 231 and 232 each having a C-shaped or U-shaped cross section. In other words, the frame members 231 and 232 are each composed of a C-shaped member having a C-shaped cross section or a U-shaped member having a U-shaped cross section. In this specification, a C-shaped cross section or a U-shaped cross section means that one of the four sides of a rectangular cross section is open. In other words, it does not mean that the unopened side is rounded, as in the case of a C, for example. The C-shaped member or U-shaped member is, for example, a shaped steel, such as a lip-channel steel material, or a so-called C-channel steel material.

[0097] The frame members 231 and 232 each extend along the X-axis direction. The frame member 232 is provided spaced apart from the frame member 231 in the Y-axis direction.

[0098] Plate member 231a is provided at the end of frame member 231 on the +X side so as to cover the -Z side. Frame member 231 and plate member 231a form opening 231h1 on the +X side. Plate member 231b is provided at the end of frame member 231 on the -X side so as to cover the -Z side. Frame member 231 and plate member 231b form opening 231h2 on the -X side.

[0099] Plate member 232a is provided at the end of frame member 232 on the +X side so as to cover the -Z side. Frame member 232 and plate member 232a form opening 232h1 on the +X side. Plate member 232b is provided at the end of frame member 232 on the -X side so as to cover the -Z side. Frame member 232 and plate member 232b form opening 232h2 on the -X side.

[0100] In order to connect frame member 231 and frame member 232, moving platform 230 includes connecting member 233a, connecting member 233b, connecting member 233c, connecting member 233d, and connecting member 233e. Each of connecting member 233a, connecting member 233b, connecting member 233c, connecting member 233d, and connecting member 233e is formed of a C-shaped member having a C-shaped cross section or a U-shaped member having a U-shaped cross section.

[0101] Second Embodiment <Fuel cell power generation equipment> A fuel cell power generation apparatus according to a second embodiment includes a mobile platform having a longitudinal direction in a first direction, and a fuel cell module including an auxiliary unit used when operating the fuel cell. The mobile platform in the fuel cell power generation apparatus according to the second embodiment includes a first frame member and a second frame member extending in the first direction. The second frame member in the fuel cell power generation apparatus according to the second embodiment is spaced apart from the first frame member in a second direction intersecting the first direction. Furthermore, the fuel cell module is mounted on top of the first frame member and the second frame member. Each of the first and second frame members in the fuel cell power generation apparatus according to the second embodiment includes a first space penetrating in the second direction at the same first position in the first direction. Each of the first and second frame members in the fuel cell power generation apparatus according to the second embodiment includes a second space penetrating in the second direction at the same second position in the first direction that is different from the first position.

[0102] The fuel cell power generation system according to the second embodiment will be described in detail with reference to the drawings. Figure 14 is a perspective view of a fuel cell power generation system 301, which is an example of the fuel cell power generation system according to the second embodiment.

[0103] The fuel cell power generation system 301 includes a fuel cell module 160 and a mobile platform 330. The fuel cell module 160 in the fuel cell power generation system 301 is placed on the mobile platform 330. The fuel cell power generation system 301 is transported by a transport device. When the fuel cell power generation system 301 is transported, a loading member of the transport device is inserted into the mobile platform 330 along the Y-axis direction.

[0104] [Mobile stand 330] FIG. 15 is a perspective view of a mobile platform 330 in a fuel cell power generator 301, which is an example of a fuel cell power generator according to the second embodiment.

[0105] The moving platform 330 has a longitudinal direction along the X-axis direction.

[0106] The moving platform 330 includes frame members 331 and 332, which are square pipes. Each of the frame members 331 and 332 extends along the X-axis direction. The frame member 332 is spaced apart from the frame member 331 in the Y-axis direction.

[0107] The frame member 331 has a space 331S1 that is open in the Y-axis direction and penetrates the frame member 331 at a first position Pos1 in the X-axis direction. The frame member 331 also has a space 331S2 that penetrates the frame member 331 in the Y-axis direction at a second position Pos2 in the X-axis direction that is away from the first position Pos1 on the -X side. In other words, the frame member 331 has the space 331S2 at a second position Pos2 different from the first position Pos1 where the space 331S1 is provided. The spaces 331S1 and 331S2 are spaced apart by a distance that allows a loading member of a transport device to be inserted. The center of gravity of the fuel cell power generation system in the X-axis direction is located between the spaces 331S1 and 331S2.

[0108] The frame member 332 has a space 332S1 that is open in the Y-axis direction and penetrates the frame member 332 at a first position Pos1 in the X-axis direction. The frame member 332 also has a space 332S2 that penetrates the frame member 332 in the Y-axis direction at a second position Pos2 in the X-axis direction that is away from the first position Pos1 on the -X side. In other words, the frame member 332 has the space 332S2 at a second position Pos2 different from the first position Pos1 where the space 332S1 is provided. The spaces 332S1 and 332S2 are spaced apart by a distance that allows a loading member of a transport device to be inserted. The center of gravity of the fuel cell power generation system in the X-axis direction is located between the spaces 332S1 and 332S2.

[0109] The space 331S1 in the frame member 331 and the space 332S1 in the frame member 332 are provided at the same first position Pos1 in the X-axis direction. The space 331S2 in the frame member 331 and the space 332S2 in the frame member 332 are provided at the same second position Pos2 in the X-axis direction. Here, the same position in the X-axis direction does not necessarily mean that the position is exactly the same, but means that the position is considered to be the same as long as it is within a manufacturing allowable range.

[0110] According to the fuel cell power generation system of the second embodiment, the loading member of the transportation equipment can be inserted from the second direction intersecting with the first direction, which is the longitudinal direction of the mobile pedestal. Note that, in the fuel cell power generation system of the second embodiment, the loading member of the transportation equipment may be inserted from the first direction, which is the longitudinal direction of the mobile pedestal, as in the fuel cell power generation system of the first embodiment.

[0111] A description will be given of a modified example of the fuel cell power generator according to the second embodiment. Fig. 16 is a perspective view of a fuel cell power generator 302, which is an example of a modified example of the fuel cell power generator according to the second embodiment.

[0112] The fuel cell power generation system 302 includes a fuel cell module 160 and a mobile platform 335. The mobile platform 335 includes a pallet 30, which is an example of a mobile platform, and a mobile platform 330. From another perspective, the fuel cell power generation system 302 includes the mobile platform 330 below the pallet 30 in the fuel cell power generation system 101 shown in FIG.

[0113] The fuel cell power generation system 302 includes, as a mobile platform 335, a pallet 30 into which a load member of a transport device can be inserted from the X-axis direction, and a mobile platform 330 into which a load member of a transport device can be inserted from the Y-axis direction. By including the pallet 30 and the mobile platform 330 as the mobile platform 335, the fuel cell power generation system 302 can also insert a load member of a transport device from the Y-axis direction.

[0114] For example, the fuel cell power generation system 101 allows the loading member of the transport equipment to be inserted from the X-axis direction, but not from the Y-axis direction. In the fuel cell power generation system 101, by using a two-tiered mobile platform, the loading member of the transport equipment can be inserted from the Y-axis direction as well.

[0115] A description will now be given of a modified example of the mobile pedestal in the fuel cell power generation system according to the second embodiment. Fig. 17 is a perspective view of a mobile pedestal 430, which is an example of a modified example of the mobile pedestal in the fuel cell power generation system according to the second embodiment.

[0116] The moving platform 430 has a longitudinal direction in the X-axis direction.

[0117] The moving platform 430 includes frame members 431 and 432, each having a C-shaped or U-shaped cross section. The frame members 431 and 432 each extend along the X-axis direction. The frame member 432 is spaced apart from the frame member 431 in the Y-axis direction.

[0118] Plate member 431a is provided at the +X side end of frame member 431 so as to cover the -Z side. Plate member 431b is provided at the -X side end of frame member 431 so as to cover the -Z side. Plate member 432a is provided at the +X side end of frame member 432 so as to cover the -Z side. Plate member 432b is provided at the -X side end of frame member 432 so as to cover the -Z side.

[0119] The frame member 431 has a space 431S1 that is open in the Y-axis direction and penetrates the frame member 431 at a first position Pos1 in the X-axis direction. The frame member 431 also has a space 431S2 that penetrates the frame member 431 in the Y-axis direction at a second position Pos2 in the X-axis direction that is away from the first position Pos1 on the -X side. In other words, the frame member 431 has the space 431S2 at a second position Pos2 that is different from the first position Pos1 where the space 431S1 is provided. The space 431S1 and the space 431S2 are separated by a distance that allows a load member of a transport device to be inserted.

[0120] The frame member 432 has a space 432S1 that is open in the Y-axis direction and penetrates the frame member 432 at a first position Pos1 in the X-axis direction. The frame member 432 also has a space 432S2 that penetrates the frame member 432 in the Y-axis direction at a second position Pos2 in the X-axis direction that is away from the first position Pos1 on the -X side. In other words, the frame member 432 has the space 432S2 at a second position Pos2 that is different from the first position Pos1 where the space 432S1 is provided. The space 432S1 and the space 432S2 are separated by a distance that allows a load member of a transport device to be inserted.

[0121] In order to connect the frame members 431 and 432, the moving platform 430 is provided with connecting members 433a and 433b. The connecting members 433a and 433b are each formed of a C-shaped member having a C-shaped cross section or a U-shaped member having a U-shaped cross section. The connecting member 433a is provided at a first position Pos1. When the connecting member 433a is provided at the first position Pos1, the space 431S1 and the space 432S1 communicate with each other along the Y-axis direction. The connecting member 433b is provided at a second position Pos2. When the connecting member 433b is provided at the second position Pos2, the space 431S2 and the space 432S2 communicate with each other along the Y-axis direction.

[0122] The following describes the state of use of the mobile platform 430 after it has been transported by a transport device. Figure 18 is a diagram showing the state of use of the mobile platform 430, which is an example of a modified mobile platform for the fuel cell power generation system according to the second embodiment.

[0123] In the mobile platform 430, for example, after transportation by a transport device, the opening on the side of the frame member 431 may be closed with a flat plate 431c in order to reinforce the mobile platform 430. Similarly, the opening on the side of the frame member 432 may be closed with a flat plate 432c.

[0124] <Summary> According to the fuel cell power generation system of the second embodiment, the fuel cell module (fuel cell unit and auxiliary unit) can be transported as a single unit. According to the fuel cell power generation system of the second embodiment, the fuel cell module is attached to a mobile platform, and the loading member of the transporting equipment can be inserted into the mobile platform in a direction intersecting the longitudinal direction of the mobile platform to transport the fuel cell power generation system.

[0125] The present disclosure also includes aspects described in the following appendices.

[0126] [Appendix 1] a mobile platform having a longitudinal direction in a first direction; a fuel cell module including a fuel cell unit and an auxiliary device used to operate the fuel cell unit; Equipped with the moving platform includes a first frame member and a second frame member having an internal space in which at least one of a first side in the first direction and a second side opposite to the first side is open, the second frame member is spaced apart from the first frame member in a second direction intersecting the first direction, each of the first frame member and the second frame member extends in the first direction; the fuel cell module is placed on the upper portion of each of the first frame member and the second frame member; Fuel cell power generation equipment.

[0127] [Appendix 2] a mobile platform having a longitudinal direction in a first direction; a fuel cell module including a fuel cell unit and an auxiliary device used to operate the fuel cell unit; Equipped with the moving platform includes a first frame member and a second frame member extending in the first direction, the second frame member is spaced apart from the first frame member in a second direction intersecting the first direction, the fuel cell module is placed on the top of each of the first frame member and the second frame member; each of the first frame member and the second frame member has a space penetrating in the second direction at the same position in the first direction; Fuel cell power generation equipment.

[0128] [Appendix 3] Each of the first frame member and the second frame member is a C-shaped member or a square pipe. 10. A fuel cell power generation device according to claim 1 or 2.

[0129] [Appendix 4] The space of the first frame member is formed so that one of the load members of the transport device can be inserted from the first side, The space of the second frame member is formed so that the other loading member of the transport device can be inserted from the first side. 2. The fuel cell power generation device according to claim 1.

[0130] [Appendix 5] the space of the first frame member is formed from the first side to the second side of the first frame member, The space of the second frame member is formed from the first side to the second side of the second frame member. 2. The fuel cell power generation device according to claim 1.

[0131] [Appendix 6] an auxiliary unit including the auxiliary; The auxiliary unit includes a heat exchanger that exchanges heat between a first coolant that cools the fuel cell module and a second coolant that is supplied from an external source, an ion exchanger that removes ions contained in the first coolant, and a reservoir tank that stores the first coolant. 2. The fuel cell power generation device according to claim 1.

[0132] [Appendix 7] the accessory unit comprises a frame; the heat exchanger, the ion exchanger, and the reservoir tank are provided inside the frame in a plan view. 7. The fuel cell power generation device according to claim 6.

[0133] [Appendix 8] the frame has a rectangular parallelepiped shape, and the heat exchanger, the ion exchanger, and the reservoir tank are provided inside the frame. 8. The fuel cell power generation device according to claim 7.

[0134] [Appendix 9] The heat exchanger is provided below the frame and on the second side. 8. The fuel cell power generation device according to claim 7. [Explanation of symbols]

[0135] 1. Fuel cell power generation equipment 10 Fuel Cell Unit 20 Auxiliary Unit 20f frame 21, 22 Heat exchanger 23, 24 Reservoir tank 25 Ion exchanger 25a Degassing section 26 Air filter 27 Electrical Circuit Box 30 palettes 31, 32 Square pipe 31A, 31B, 32A, 32B Placement section 33a, 33b, 33c connecting members 41a, 41b, 42a, 42b Insulating members

Claims

1. a pallet having a longitudinal direction in a first direction; a fuel cell unit attached to an upper portion of the pallet on a first side in the first direction and including fuel cells; an auxiliary unit attached to an upper portion of a second side of the pallet opposite to the first side in the first direction, the auxiliary unit being used when operating the fuel cell; Equipped with The pallet is a first frame member extending in the first direction and having a first mounting portion on the first side of an upper portion on which the fuel cell unit is mounted and a second mounting portion on the second side of an upper portion on which the auxiliary unit is mounted, the first frame member having an internal space that is open on the first side; a second frame member that is spaced from the first frame member in a second direction intersecting the first direction, extends in the first direction, and has a third mounting portion on the first side of an upper portion on which the fuel cell unit is mounted, and a fourth mounting portion on the second side of an upper portion on which the auxiliary unit is mounted, and has an internal space that is open on the first side; a connecting member having one end connected to a side surface of the first frame member on the side of the second frame member and the other end connected to a side surface of the second frame member on the side of the first frame member, thereby connecting the first frame member and the second frame member; Equipped with Fuel cell power generation equipment.

2. an insulating member is provided between the pallet and the fuel cell unit; 2. The fuel cell power generation system according to claim 1.

3. an insulating member provided between the pallet and the auxiliary unit; 3. The fuel cell power generation system according to claim 2.

4. Each of the first frame member and the second frame member is a square pipe. The fuel cell power generation system according to any one of claims 1 to 3.

5. The space of the first frame member is formed so that one of the forks of a forklift can be inserted from the first side, The space of the second frame member is formed so that the other fork of the forklift can be inserted from the first side. The fuel cell power generation system according to any one of claims 1 to 3.

6. the space of the first frame member is formed from the first side to the second side of the first frame member, The space of the second frame member is formed from the first side to the second side of the second frame member. The fuel cell power generation system according to any one of claims 1 to 3.

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