JP2002075389A - Fuel cell device and fuel cell device composite body - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a fuel cell device composite body contributing to the effective utilization of the device. SOLUTION: This fuel cell device composite body 10 comprises a fuel cell device 1 generating power and an air conditioning device 11 performing the air-conditioning. The air conditioning device 11 is provided with a cooling unit 12 performing the cooling and a heating unit 13 performing the heating. The cooling unit 12 is provided with a cooling unit body 121 and a first heat exchange line 122. The heating device 13 is provided with a heating unit body 131 and a second heat exchange line 132. The fuel cell device 1 is provided with a cell body, a fuel feed means, an air feed means, a moisture state adjusting water feed means, an air-liquid mixing means, a regeneration means, a cooling water feed means 7, a control means, and an output means.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a fuel cell device and a fuel cell device composite.

[0002]

2. Description of the Related Art Fuel cells generate electricity by oxidizing fuel and reducing oxygen. This fuel cell
It is attracting attention as a clean power source.

[0003]

SUMMARY OF THE INVENTION An object of the present invention is to provide a fuel cell device and a fuel cell device composite which can contribute to effective use of the device.

[0004]

This and other objects are achieved by the present invention described below.

(1) A fuel cell device comprising: a fuel cell; cooling means for supplying a refrigerant to the fuel cell to cool the fuel cell; and a heat exchange unit for exchanging heat of the refrigerant. The fuel cell device, wherein the heat exchange unit is shared with a device other than the fuel cell device.

(2) Devices other than the fuel cell device include:
The fuel cell device according to (1), which is a cooling device that performs cooling using a refrigerant.

(3) The fuel cell device according to (2), wherein the heat exchange unit can cool the refrigerant supplied to the fuel cell and the refrigerant of the cooling device.

(4) The fuel cell device according to (3), wherein the refrigerant supplied to the fuel cell and the refrigerant of the cooling device are cooled by performing heat exchange with the atmosphere.

(5) The fuel cell device according to the above (3) or (4), further comprising cooling promoting means for promoting cooling of the refrigerant supplied to the fuel cell and the refrigerant of the cooling device in the heat exchange section. .

(6) The fuel cell device according to the above (5), wherein the cooling promoting means comprises a blower for blowing air to the heat exchange section.

(7) The heat exchange section has a heat exchanger for cooling a refrigerant supplied to the fuel cell, and this heat exchanger is used for sharing with devices other than the fuel cell device. The fuel cell device according to any one of the above (1) to (6).

(8) The heat exchanger has a first heat exchanger and a second heat exchanger for cooling the refrigerant supplied to the fuel cell, and the first heat exchanger includes The fuel cell device according to any one of (1) to (7), wherein a cooling device is connected, and a heating device is connected to the second heat exchanger.

(9) In the above (8), which has a flow path switching means for switching a flow path of a refrigerant supplied to the fuel cell between the first heat exchanger and the second heat exchanger. The fuel cell device according to claim 1.

(10) The fuel cell device according to the above (8) or (9), wherein the cooling device and / or the heating device performs cooling or heating in a vehicle cabin.

(11) The fuel cell device according to any one of (1) to (10), wherein the refrigerant supplied to the fuel cell is water.

(12) A fuel cell device having a fuel cell and a cooling means for supplying a refrigerant to the fuel cell to cool the fuel cell, and a cooling device for cooling using the refrigerant. A fuel cell device composite, wherein a portion for cooling the refrigerant supplied to the fuel cell and a portion for cooling the refrigerant of the cooling device are at least partially shared.

(13) A fuel cell device complex comprising: a fuel cell device that generates power using a fuel cell; and a heating device that performs heating by using heat generated by the fuel cell device.

[0018]

DETAILED DESCRIPTION OF THE INVENTION At present, fuel cells have attracted much attention in terms of power generation. As described above, the fuel cell can generate electricity efficiently and cleanly. By the way, such a fuel cell generates a great deal of heat during power generation. That is, when the fuel cell generates electricity, a large amount of heat is generated as a by-product. The present inventor paid attention to the heat generated in this fuel cell, and thought that this heat could be used effectively.

A fuel cell device for operating a fuel cell usually has a cooling means for cooling the fuel cell. In addition, the fuel cell device has various devices in order to operate the fuel cell smoothly. Therefore, the fuel cell device becomes large-scale to some extent, and it is necessary to secure a sufficient installation space. The present inventor thought that the installation space for the fuel cell device and the like could be managed effectively.

The present invention has been made based on such findings. Hereinafter, the present invention will be described in detail based on preferred embodiments shown in the accompanying drawings.

FIGS. 1 and 10 are circuit diagrams showing an embodiment of the fuel cell device composite according to the present invention. FIG.
FIG. 2 is a longitudinal sectional view showing a fuel cell included in the fuel cell device shown in FIG. FIG. 3 is a block diagram showing a control system of the fuel cell device composite according to the present embodiment.

As shown in FIGS. 1 and 10, a fuel cell device composite 10 of the present invention is a fuel cell device
And a cooling and heating device 11 for performing cooling and heating. FIG.
As shown in FIG. 0, the cooling / heating device 11 includes a cooling device 12 that supplies cooling air to perform cooling, and a heating device 13 that supplies warm air to perform heating.

The cooling device 12 has a cooling device main body 121 for cooling using the refrigerant C, and a first heat exchange line 122 extended from the cooling device main body 121 and exchanging heat of the refrigerant C. The heating device 13 includes a heating device main body 131 that performs heating, and a second heat exchange line 132 that is extended from the heating device main body 131 and that performs heat exchange with the fuel cell device 1. In the cooling / heating device 11, the cooling device main body 121 and the heating device main body 131 are housed in the cooling / heating device main body 110, and the first heat exchange line 122 and the second heat exchange line 132 are extended from the cooling / heating device main body 110. .

The cooling / heating device 11 has a control means (not shown) for controlling the cooling device 12 and the heating device 13 therein. The control means of the air conditioner 11 is, for example, a microcomputer. This control means can exchange information with the fuel cell device 1, and can control cooling and heating based on the result of the exchange. Such a cooling / heating device 1 uses, for example, electricity generated by the fuel cell device 1 as a power source (wiring is not shown). Therefore, when the fuel cell device 1 starts power generation, the cooling and heating device 11 can start operating.

The fuel cell device 1 has a fuel cell 91 as shown in FIG. This fuel cell device 1 can generate power by supplying fuel and oxygen to the fuel cell 91. This power generation involves a large amount of heat. Therefore, the fuel cell device 1 can cool the fuel cell 91 by supplying the cooling water W2 to the fuel cell 91 during power generation.

The fuel cell device 1 has a heat exchanger (first heat exchanger 752) for cooling the cooling water W2. In the fuel cell device complex 10 of the present invention, the first heat exchanger 752 includes the refrigerant C of the cooling device 12 in addition to the cooling water W2.
Can also be cooled. Furthermore, the fuel cell device composite 10 of the present invention can use the heat obtained by the cooling water W2 by cooling the fuel cell 91 for heating performed by the heating device 13.

The fuel cell device 1 comprises a battery body 9, a fuel supply means 2, an air supply means 3, a humidified water supply means 4, a gas-liquid mixing means 5, a regeneration means 6, and a cooling water supply means. It has means 7, control means 8, and output mechanism 101.

More specifically, the fuel cell device 1 includes a fuel cell 9
1, a fuel supply means 2 for supplying the fuel F to the fuel cell 91, an air supply means 3 for supplying the air A to the fuel cell 91, and a wet condition adjusting water W for the fuel cell 91.
And a fuel cell 9 for supplying conditioned water for supplying
A gas-liquid mixing means 5 for mixing the air A supplied to 1 with the wet condition adjusting water W1; a regenerating means 6 for regenerating the wet condition adjusting water W1 supplied to the fuel cell 91; Cooling water supply means 7 for supplying the fuel cell device 1
And the like, and an output mechanism 101 for outputting electricity generated by the fuel cell 91. Hereinafter, the fuel cell device 1 will be described for each component.

<Battery Body 9> The battery body 9 houses at least one fuel cell 91 as shown in FIG.

As shown in the figure, the fuel cell 91 is provided with a fuel electrode (negative electrode; anode) 94, an oxygen electrode (positive electrode; cathode) 95, and between the fuel electrode 94 and the oxygen electrode 95. It has an electrolyte layer 93, a fuel electrode side battery frame 97 adjacent to the fuel electrode 94, and an oxygen electrode side battery frame 98 adjacent to the oxygen electrode 95. These fuel electrode 94, oxygen electrode 95,
The electrolyte layer 93 and the electrolyte layer 93 are both layered and constitute a laminate.

The fuel electrode 94 has a catalyst (for example, platinum) that promotes the oxidation of the fuel (reducing agent) F, and can oxidize the fuel F. Further, the oxygen electrode 95 has a catalyst (for example, platinum or the like) that promotes the reduction of oxygen (oxidizing agent), and can reduce oxygen. The fuel cell 91 is
By oxidizing the fuel F at the fuel electrode 94 and reducing oxygen at the oxygen electrode 95, electricity is generated. The electrolyte layer 93
It has an electrolyte (eg, an ion exchange resin) and functions as a transfer medium for substances (eg, hydrogen ions) that need to move between the fuel electrode 94 and the oxygen electrode 95 when the fuel cell 91 performs power generation. .

In the fuel cell 91, the fuel electrode 94, the oxygen electrode 95, and the electrolyte layer 93 constitute a reaction section 92 where a reaction for generating electricity (oxidation-reduction reaction) is performed.

In such a reaction section 92, when each layer (particularly, the electrolyte layer 93) contains an appropriate amount of water, a reaction occurs efficiently, and electricity can be generated efficiently. Therefore, in the fuel cell device 1 of the present embodiment, the wet state adjustment water W1 for adjusting the wet state of the reaction section 92 is supplied to the fuel cell 91.

In the fuel cell 91 of this embodiment, for example, hydrogen (H ₂ ) is used as the fuel F. Oxygen (O ₂ ) is supplied from, for example, air A (a gas containing oxygen). In other words, in the fuel cell 91 of the present embodiment, when the air A is supplied to the oxygen electrode 95, the oxygen in the air A is supplied to the oxygen electrode 95. Hereinafter, supplying oxygen to the oxygen electrode 95 will be simply referred to as "supplying air A" for easy understanding.

In the fuel cell 91, the reaction section 92 is supported by two cell frames (separators). Specifically, a fuel electrode side battery frame 97 is in contact with the fuel electrode 94, and an oxygen electrode side battery frame 98 is in contact with the oxygen electrode 95. These battery frames support the reaction section 92. are doing.

As shown in FIG. 2, the fuel cell frame 97 has, for example, a plate shape (or a block shape).
The fuel electrode side battery frame 97 has a groove 972 and a hole 974.

As shown in FIG. 2, the groove 972 has a quadrangular cross-sectional shape, and a plurality of grooves 972 are arranged in parallel on the surface of the fuel cell frame 97 (in the figure, the groove 972 is shown).
Is formed so as to penetrate the paper surface). These grooves 972 face the anode 4. In the fuel cell 91,
These grooves 972 allow the fuel flow path 9, which is the flow path of the fuel F,
71 are configured. The fuel passage 971 is shown in FIG.
As shown in FIG. 7, the electrode is formed along the surface of the fuel electrode 94. In the fuel cell 91, the fuel F is supplied to the fuel electrode 94 through these fuel channels 971.

The hole (tube) 974 is provided inside the fuel cell frame 97 on the anode side, and is located near the groove 972. These holes 974 have, for example, a rectangular cross-sectional shape, and are provided so as to penetrate the fuel electrode side battery frame 97. Further, a plurality of the holes 974 are arranged in parallel so as to be substantially orthogonal to the groove 972 (in the figure, the holes 97
4 extend in the up-down direction of the paper surface, and the holes 974 are arranged in parallel along the vertical direction of the paper surface). As described above, when the hole 974 and the groove 972 are not parallel, the piping in the battery main body 9 becomes easy.

These holes 974 are located near the fuel electrode 94 with the groove 972 interposed therebetween. In the fuel cell 91, these holes 974 form a fuel electrode side cooling water flow path 973 which is a flow path of the cooling water W2.

As described above, the fuel cell 97 on the fuel electrode side is located outside the fuel electrode 94 with respect to the fuel electrode 94.
1 and further outside the fuel electrode side cooling water flow path 9.
73 is located. The fuel flow path 971 and the fuel electrode side cooling water flow path 973 are partitioned by a fuel electrode side battery frame 97. That is, the fuel flow path 971
And the fuel electrode side cooling water flow path 973 are not in communication. That is, in the fuel cell 1, the cooling water W2 does not directly contact (mix) with the fuel F and the fuel electrode 94.

The fuel cell frame 97 is preferably made of a material having high thermal conductivity, such as a metal or a carbon material. Thereby, the heat generated in the reaction section 92 is transferred to the cooling water W flowing through the fuel electrode side cooling water
2, it is transmitted efficiently.

The oxygen electrode side battery frame 98 is connected to the fuel electrode side battery frame 9.
7 has the same configuration as that of FIG. In the fuel cell 91, the air A
An oxygen flow path 981 that is a flow path of (ie, oxygen) is configured. This oxygen flow path 981 also serves as a flow path for the wet state conditioning water W1 in addition to the air A. That is, the oxygen flow path 981 has both a flow path for the air A supplied to the oxygen electrode 95 and a flow path for the wet state adjustment water W1. The oxygen flow path 981 is formed along the surface of the oxygen electrode 95 as shown in FIG. In the fuel cell 91, the air A and the humidified water W 1 are supplied to the oxygen electrode 95 through the oxygen flow path 981.

In the fuel cell 91, the hole 984 allows the oxygen-side cooling water flow path 983 serving as the flow path of the cooling water W2 to flow.
Is configured.

As shown in FIG. 1, the oxygen electrode side cooling water flow path 983 provided near the oxygen electrode 95 and the fuel electrode side cooling water flow path 973 provided near the fuel electrode 94 are formed by Are connected by a pipe 71 provided therein.

In the fuel cell 91 shown in FIG. 2, the fuel cell side battery frame 97 is arranged so that the groove 972 and the groove 982 are substantially perpendicular to each other.
The oxygen electrode side battery frame 98 is attached to the reaction section 92. Therefore, in the fuel cell 91, the fuel flow path 97
1 and the oxygen flow path 981 have a positional relationship of being substantially orthogonal. Thereby, the configuration of the member for supplying the fuel F and the air A can be simplified.

In order to operate such a fuel cell 91 smoothly, the fuel cell device 1 has various members (means). Hereinafter, each means of the fuel cell device 1 will be described. First, each means shown in FIG. 1 will be described.

<Fuel Supply Means 2> The fuel supply means (fuel supply line) 2 has a function of supplying fuel F to the fuel electrode 94.

The fuel supply means 2 includes a fuel source 21, a pipe 22 having one end connected to the fuel source 21 and the other end connected to a fuel flow path 971, and a valve 2 installed on the pipe 22.
3, a pressure sensor 24 installed on the pipe 22 downstream of the valve 23, and a fuel discharge unit 25 connected to the fuel flow path 971 and the gas-liquid mixing unit 5.

The fuel discharging means 25 can discharge the fuel F and other gases in the fuel flow path 971. The fuel discharge means 25 includes a pipe 251 having one end connected to the fuel flow path 971 and the other end connected to the gas-liquid mixing means 5,
And a valve 252 provided on the pipe 251. In the fuel supply means 2, when the valve 252 is closed, the flow path between the fuel source 21 and the valve 252 forms a closed system.

The fuel source (fuel supply device) 21 is composed of, for example, a cylinder and stores, for example, hydrogen gas as the fuel F. The fuel source 21 can supply the stored fuel F to the fuel electrode 94.

The internal pressure of the flow path between the valve 23 and the valve 251 (in particular, the internal pressure of the fuel flow path 971) can be adjusted by adjusting the opening of the valve (pressure adjusting valve) 23. The pressure sensor 24 can detect the internal pressure of the flow path between the valve 23 and the valve 251 (the internal pressure of the fuel flow path 971).

<Air Supply Means 3> The air supply means (oxygen supply means) 3 has a function of supplying air A (ie, oxygen) to the oxygen electrode 95.

This air supply means (air supply line) 3
Has a pipe 31 having one end open to the atmosphere and the other end connected to the gas-liquid mixing means 5, and a first fan 32 provided on the pipe 31.

The first fan 32 has a predetermined air volume (supply amount).
Thus, the air A can be supplied to the oxygen electrode 95.

<Wet condition adjusting water supply means 4> The wet condition adjusting water supply means (wet condition adjusting water supply line) 4 has a function of supplying the wet condition adjusting water W1 to the oxygen electrode 95.

The wet condition adjusting water supply means 4 is installed on the first tank 41, a pipe 42 having one end connected to the first tank 41, and the other end connected to the gas-liquid mixing means 5, and a pipe 42. A first pump 43, a water pressure sensor 44 installed on a pipe 42 downstream of the first pump 43, and a pipe 4.
2 and one end is connected to the first pump 43 and the water pressure sensor 4
4 and a bypass line 45, the other end of which is connected to the upstream side of the first pump 43.
Connected to the valve 46 installed above and the first tank 41,
And a first water level detecting means 47 installed.

The first tank 41 stores the conditioned water W1. The first water level detecting means 47 is provided in the first tank 4
1 has a function of monitoring the water level of the humidified condition adjusting water W1 stored therein. The first water level detecting means 47
It has a first water level sensor 471 for detecting the water level of the wet condition adjusting water W1 stored in the tank 41, and a first alarm 472 connected to the first water level sensor 471.

<Gas-Liquid Mixing Means 5> The gas-liquid mixing means (gas-liquid supply means) 5 has a function of mixing the air A and the wet state adjusting water W1.

The gas-liquid mixing means 5 has a nozzle 51 to which the pipe 42 is connected, and a space (gas-liquid supply chamber) 52 communicating with the oxygen flow path 981. The air supply means 3
The pipe 31 communicates with the space 52. Further, a pipe 251 of the fuel supply means 2 also communicates with the space 52.

The gas-liquid mixing means 5 includes, for example, a fuel cell 9
1 is installed in the battery main body 9 so as to be located vertically above.

<Reproduction means 6> Reproduction means (reproduction line) 6
Has a function of regenerating the wet-conditioning water W1 supplied to the oxygen flow path 981.

The regenerating means 6 includes a manifold 66 to which an oxygen flow path 981 communicates, a regenerator 62 located downstream of the manifold 66, and one end connected to the manifold 66 and the other end connected to the regenerator 62. Connected piping 61,
A first temperature sensor 67 installed on the pipe 61, an exhaust line 63 having one end connected to the regenerator 62 and the other end open to the atmosphere, and a valve 6 installed on the exhaust line 63.
4 and a pipe 65 having one end connected to the regenerator 62 and the other end connected to the first tank 41.

The manifold (lower manifold) 66
Is positioned vertically below the fuel cell 91, for example.
It is installed in the battery body 9. This manifold 66
Can collect the conditioned water W1 that has passed through the oxygen flow path 981.

The regenerator 62 is composed of, for example, a condenser that condenses and condenses moisture in the air A, and can separate the air A passing through the oxygen flow path 981 and the wet condition adjusting water W1. In addition, the regenerator 62 is provided with the wet-conditioning water W
1 can also be discharged.

The first temperature sensor 67 is installed near the outside of the battery body 9, specifically, near the manifold 66. The first temperature sensor 67 includes an oxygen flow path 891
, And the conditioned water W1 flowing out of the battery body 9
Alternatively, the temperature of the air A can be detected. Thus, in the fuel cell device 1, the temperature of the fuel cell 91 is detected.

In the fuel cell device 1, the regenerating means 6 and the wet condition adjusting water supply means 4 provide the wet condition adjusting water W
A circulation line (first circulation line) through which 1 circulates is configured.

<Cooling Water Supply Means 7> A part of the cooling water supply means 7 is shown in FIG. 1, and the other part is shown in FIG. The cooling water supply means (cooling water supply line) 7 has a function of supplying cooling water (refrigerant) W2 to the oxygen electrode side cooling water channel 983 and the fuel electrode side cooling water channel 973.

The cooling water supply means 7 is provided with a cooling water W2
Can be supplied to the fuel cell 91. As described above, when the flow path for supplying the cooling water W2 and the flow path for supplying the wet state adjusting water W1 are different from each other, the cooling of the fuel cell 91 and the adjustment of the wet state of the reaction unit 92 are independent. Control.

The cooling water supply means 7 includes a second tank 72,
A pipe 73, a second pump 74, a pipe 71, a first heat exchange unit 75, a pipe 76, a second temperature sensor 77, a pipe 78, a second heat exchange unit 85, and a flow path switching unit 86
, A pipe 87, a pipe 88, and a second water level detecting means 79.

More specifically, the cooling water supply means 7 includes a second tank 72, a pipe 73 having one end connected to the second tank 72, and the other end connected to the oxygen electrode side cooling water flow path 983, And a pipe 71 connected at one end to the oxygen-electrode-side cooling water flow path 983 and the other end to the fuel-electrode-side cooling water flow path 973, and at a downstream side of the fuel cell 91. A first heat exchange unit 75, a pipe 76 having one end connected to the fuel electrode side cooling water flow path 973, and the other end connected to the first heat exchange unit 75, and a second temperature sensor installed on the pipe 76. 77, a pipe 78 having one end connected to the first heat exchange unit 75 and the other end connected to the second tank 72, and a flow path provided to the first heat exchange unit 75 on the downstream side of the fuel cell 91. A second heat exchange unit 85 provided to bypass the
Flow path switching means 86 provided upstream and downstream of the first heat exchange section 75 and the second heat exchange section 85, one end is connected to the pipe 76, and the other end is connected to the second heat exchange section 85. Pipe 87, one end of which is connected to the second heat exchange section 85,
A pipe 88 having the other end connected to the pipe 78;
2 and a second water level detecting means 79 connected and installed.

The cooling water supply means 7 constitutes a circulation line (second circulation line) through which the cooling water W2 circulates.

The second tank 72 stores the cooling water W2. The second water level detecting means 79 has a function of monitoring the water level of the cooling water W2 stored in the second tank 72. The second water level detecting means 79 includes a second water level sensor 791 for detecting the water level of the cooling water W2 stored in the second tank 72, and a second water level sensor 791 connected to the second water level sensor 791.
An alarm 792 is provided.

The second temperature sensor 77 is installed near the outside of the battery main body 9, specifically, near the fuel electrode side cooling water flow path 973. The second temperature sensor 77 can detect the temperature of the cooling water W2 flowing through the fuel cell 91 and flowing out of the cell body 9. The fuel cell device 1 can use the temperature of the cooling water W2 as an index of the temperature of the fuel cell 91.

The flow path switching means 86 is provided in the first heat exchange section 7.
The flow path of the cooling water W2 can be switched between the fifth heat exchange unit 85 and the second heat exchange unit 85. Specifically, the flow path switching means 86
Represents the flow path of the cooling water W2 that has passed through the fuel cell 91,
It is possible to selectively switch between the flow path to the heat exchange section 75 and the flow path to the second heat exchange section 85.

The flow path switching means 86 includes an upstream switching valve 861 provided on the pipe 76 and a pipe 78
And a downstream switching valve 862 provided above. The pipe 87 is connected to the upstream switching valve 861. Further, a pipe 88 is connected to the downstream switching valve 862. The upstream switching valve 861 can selectively switch the flow path between the pipe 76 and the pipe 87. Downstream switching valve 862
Can selectively switch the flow path between the pipe 78 and the pipe 88. These upstream switching valves 861
The downstream switching valve 862 can switch the flow path of the cooling water W2 in conjunction with the switching valve 862.

The first heat exchanging section 75 can exchange heat of the cooling water W2 that has passed through the fuel cell 91. Further, the first heat exchange unit 75 can also perform heat exchange of the refrigerant C used for cooling by the cooling device 12.

The first heat exchange section 75 promotes heat exchange between the cooling water W2 and the refrigerant C in the first heat exchanger 751 for exchanging heat between the cooling water W2 and the refrigerant C. And a second fan (cooling promoting means) 752.

The first heat exchanger 751 has cooling water W inside.
The cooling water channel 753 serving as a second channel and the coolant channel 754 serving as a channel for the refrigerant C are provided. A pipe 76 is connected to an inflow port of the cooling water channel 753, and a pipe 78 is connected to an outflow port of the cooling water channel 753. Further, the refrigerant flow path 754 forms a part of the first heat exchange line 122.

The cooling water flow path 753 and the refrigerant flow path 7
54 are isolated from each other. That is, the cooling water channel 753 and the coolant channel 754 are independent from each other. Therefore, the cooling water W2 flowing through the cooling water flow path 753 and the refrigerant C flowing through the refrigerant flow path 754 are not mixed with each other. These cooling water channels 75
The 3 and the coolant flow path 754 are configured by, for example, piping.

The first heat exchanger 751 is composed of, for example, a radiator. In the first heat exchanger 751, the surface area of the pipe forming the cooling water flow path 753 and the surface area of the pipe forming the refrigerant flow path 754 are increased, and these pipes are in contact with the atmosphere. For this reason, the cooling water W2 is
When flowing through the inside 3, the cooling water W2 can exchange heat with the atmosphere via the pipe. Thereby, the cooling water W2
Radiates heat and is cooled. Similarly, the refrigerant C is
When flowing through 54, the refrigerant C can exchange heat with the atmosphere via the pipe. Thereby, the refrigerant C radiates heat and is cooled.

The second fan (blower) 752 can send air to the cooling water channel 753 and the refrigerant channel 754 at a predetermined air volume. That is, the second fan 7
52 sends air to the first heat exchanger 751 at a predetermined air volume,
Heat exchange between the cooling water W2 and the refrigerant C with the atmosphere can be promoted. Thereby, heat radiation of the cooling water W2 and the refrigerant C, that is, cooling is promoted.

The cooling water supply means 7 is provided with a second heat exchange section 85 so as to bypass such a first heat exchange section 75. For example, in the cooling water supply means 7, when the flow path to the first heat exchange section 751 is a main line, the flow path to the second heat exchange section 85 (the pipe 87, the second heat exchange section 85, The pipe 88) forms a bypass line (a bypass line) that bypasses the first heat exchange unit 75.

The second heat exchanging unit 85 can exchange heat of the cooling water W2 that has passed through the fuel cell 91. The heat exchanged by the second heat exchanging unit 85 is heated air (heat medium) H
Is supplied to the heating device main body 131.

The second heat exchanger 85 includes a second heat exchanger 851 for exchanging heat of the cooling water W2, and a second heat exchanger 851.
And a third fan (heat exchange promoting means) 852 that promotes the heat exchange of the cooling water W2 in the first embodiment.

The second heat exchanger 851 has cooling water W inside.
A cooling water flow path 853 serving as a second flow path and an air flow path 854 serving as a flow path of air in the atmosphere are provided. Cooling water channel 8
A pipe 87 is connected to the inlet of the cooling water channel 53,
A pipe 88 is connected to the outlet 53. Also,
The air flow path 854 forms a part of the second heat exchange line 132.

The cooling water passage 853 is constituted by, for example, a pipe. The air flow path 854 is a space that accommodates, for example, the cooling water flow path 853.

The second heat exchanger 851 is composed of, for example, a radiator. In the second heat exchanger 851, the surface area of the pipe constituting the cooling water flow path 853 is increased, and this pipe is in contact with the air in the air flow path 854. Therefore, when the cooling water W2 flows in the cooling water flow path 853, the cooling water W2 can perform heat exchange with the air in the air flow path 854 via the pipe. The cooling water W2 is
When heat exchange is performed with the air in 4, the cooling water W2 radiates heat,
Cooled. On the other hand, the air in the air flow path 854 acquires heat and warms by the heat exchange.

The third fan (blower) 852 can send air to the air flow path 854. That is, the third fan 852 can send air to the second heat exchanger 851 to promote heat exchange between the cooling water W2 in the cooling water channel 853 and the air in the air channel 854. Thereby, heat radiation of the cooling water W2 and heat acquisition of the air in the air flow path 854 are promoted.

In the fuel cell device 1, the cooling means 70 for cooling the fuel cell 91 is constituted by the cooling water supply means 7, the oxygen electrode side cooling water flow path 983, and the fuel electrode side cooling water flow path 973. ing.

<Output Mechanism 101> The output mechanism 101 is a mechanism that outputs electricity generated by the fuel cell 91.

The output mechanism 101 includes a minus terminal 107 connected to the fuel electrode 94 via the wiring 105 and a plus terminal 10 connected to the oxygen electrode 95 via the wiring 106.
8, an ammeter 102 provided on the wiring 105, a voltmeter 103 connected to the wiring 105 and the wiring 106, and a switch 104 provided on the wiring 106.

<Control Unit 8> The control unit 8 mainly has a function of controlling the operation of the fuel cell device 1. In addition, the control means 8 has a function of assisting the operation of the cooling and heating device 11.

As shown in FIG. 3, the control means 8 includes a CPU (control device) 81 for performing control processing of the fuel cell device 1 and the like.
A memory 82 in which predetermined programs, tables, and the like are recorded; a CPU 81; an I / O port (input / output port) 83 that mediates input / output between each member of the fuel cell device 1 and the cooling / heating device 11; have.

The control means 8 is connected to the fuel supply means 2, the air supply means 3, the wet condition adjusting water supply means 4, the regeneration means 6, the cooling water supply means 7, and the output mechanism 101. Operation of the member can be controlled. For example, in the fuel cell device 1, the supply of the fuel F, the air A, the wet condition adjusting water W 1, and the cooling water W 2 to the fuel cell 91 is controlled by the control unit 8. Further, the control means 8 is also connected to the cooling and heating device 11, and can exchange information with the cooling and heating device 11.

The information detected by each means of the fuel cell device 1 and the information from the cooling / heating device 11 are recognized by the CPU 81 via the I / O port 83. The CPU 81 performs a process described below based on this information, a program recorded in the memory 82 (for example, a program for performing a process described below), a table recorded in the memory 82, and the like. Based on this processing result, the CPU
81 controls each unit of the fuel cell device 1 through the I / O port 83 and transmits information to the cooling / heating device 11.

As shown in FIG. 3, in the fuel cell device 1,
Pressure sensor 24, water pressure sensor 44, first water level sensor 471, first temperature sensor 67, second temperature sensor 7
7. Information from the second water level sensor 791, the ammeter 102, and the voltmeter 103 is transmitted through the I / O port 83,
It reaches the CPU 81. That is, in the fuel cell device 1, the pressure sensor 24, the water pressure sensor 44,
First water level sensor 471, first temperature sensor 67, second
Temperature sensor 77, second water level sensor 791, ammeter 1
02 and the voltmeter 103 are connected to the I / O port 83.

The CPU 81 also controls the valve 23, the valve 252, the first fan 32,
First pump 43, valve 46, first alarm 472, regenerator 62, valve 64, second pump 74, second fan 7
52, a second alarm 792, a third fan 852, an upstream switching valve 861, a downstream switching valve 862,
And the switch 104 can be controlled.
That is, in the fuel cell device 1, the valve 23, the valve 2
52, a first fan 32, a first pump 43, a valve 46,
The first alarm 472, the regenerator 62, the valve 64, the second pump 74, the second fan 752, the second alarm 792, the third fan 852, the upstream switching valve 861, the downstream switching valve 862, and the switch 104 /
It is connected to the O port 83.

Further, the CPU 81 is provided with the I / O port 8
3, information can be transmitted and received to and from the cooling / heating device main body 110. That is, in the fuel cell device 1, the I / O port 83 is
It is connected to the.

Hereinafter, the processing performed by the CPU 81 using the memory 82 and the I / O port 83 will be described simply by the control means 8.
It is described as the processing of.

(2) Fuel cell device composite 10
The operation of the fuel cell device complex 10 will now be described with reference to FIGS.
A description will be given based on FIG.

As shown in FIG. 4, the operation of the fuel cell device 1 mainly includes a start process S1, a main process, and a termination process S1.
9. The main processing includes a fuel supply control processing S2, an air supply control processing S3, a wet state adjustment water supply control processing S4, a cooling water supply control processing S5, and a cooling start processing S71 (see FIG. 6) performed by interruption, which are performed sequentially. , Cooling end process S75 and heating start process S81 (see FIG. 7)
And heating end processing S85.

The fuel cell device 1 performs a fuel supply control process S2
Controls supply of the fuel F to the fuel cell 91. Thus, the fuel cell device 1 can supply the fuel F to the fuel electrode 94 smoothly and stably. The fuel cell device 1 controls the supply of the air A to the fuel cell 91 in the air supply control process S3. Thereby, the fuel cell device 1
Can supply the air A to the oxygen electrode 95 smoothly and stably. The fuel cell device 1 controls the supply of the wet condition adjusted water W1 to the fuel cell 91 in the wet condition adjusted water supply control processing S4. The fuel cell device 1 controls the supply of the cooling water W2 to the fuel cell 91 in the cooling water supply control process S5. Thereby, the fuel cell device 1 can maintain the temperature of the fuel cell 91 within a temperature range suitable for power generation.

Further, the fuel cell device 1 performs the cooling start process S
With 71, control corresponding to the start of operation of the cooling device 12 is performed. Thereby, the cooling device 12 can perform cooling appropriately and smoothly, and the fuel cell device 1 can continue to operate smoothly. The fuel cell device 1 performs control corresponding to the end of the operation of the cooling device 12 by the cooling end process S75. This allows the fuel cell device 1 to smoothly and appropriately continue to operate even after the end of cooling. The fuel cell device 1 performs control corresponding to the start of operation of the heating device 13 by the heating start process S81. Thereby, the heating device 13 can perform heating appropriately and smoothly, and the fuel cell device 1 can continue to operate smoothly. The fuel cell device 1 performs the heating end process S85.
Thus, control corresponding to the end of operation of the heating device 13 is performed. This allows the fuel cell device 1 to continue operating smoothly and appropriately even after the end of heating.

The operation of the fuel cell device 1 is performed, for example, such that each valve is closed (closed), the flow path switching means 86 selects the first heat exchange section 75, each member (means) except the control means 8 is off, and The air conditioner 11 is started from an off state.

[Starting Process S1] The starting process S1 is a process of starting the fuel cell device 1 and putting the operation on track.
When operating the fuel cell device 1, the control means 8 first performs the start-up process S1. As shown in FIG. 5, the starting process S1 includes steps S11 to S16.

[S11] First, the control means 8 checks the water levels of the wet condition adjusting water W1 in the first tank 41 and the cooling water W2 in the second tank 72. Specifically, the control means 8 includes the first water level sensor 471 and the second water level sensor 471.
From the water level sensor 791, water level information on the wet state adjustment water W1 in the first tank 41 and the cooling water W2 in the second tank 72 is obtained. If the water level of the wet condition adjusting water W1 in the first tank 41 has not reached the predetermined value, the control unit 8 drives the first alarm 472 to issue a warning, and the wet condition adjusting water W1 Notify that is missing or low. Then, the control means 8 may, if necessary,
The operation of the fuel cell device 1 is stopped. The second tank 7
If the water level of the cooling water W2 in the second cooling water 2 has not reached the predetermined value, the control means 8 issues a warning by driving the second alarm 792 to indicate that the cooling water W2 is insufficient or small. Inform. Then, the control unit 8 stops the operation of the fuel cell device 1 as necessary. On the other hand, if the water levels of the wet condition adjusting water W1 and the cooling water W2 are normal, the control means 8 performs step S12.

[S12] Next, the control means 8 turns on the reproduction means 6. Specifically, the control means 8 controls the valve 64
Is opened at a predetermined opening to open the discharge path of the air A. Further, the control means 8 operates the reproducing device 62.

[S13] Next, the control means 8 turns on the wet condition adjusting water supply means 4. Specifically, the control means 8
Operates the first pump 43, and controls the wet condition adjusting water W1.
Is supplied to the nozzle 51 at a predetermined flow rate.

[S14] Next, the control means 8 turns on the air supply means 3. Specifically, the control means 8 activates the first fan 32 and causes the air A to flow in the space 5 at a predetermined flow rate.
Feed into 2.

[S15] Next, the control means 8 turns on the fuel supply means 2. Specifically, the control means 8 opens the valve 23 at a predetermined opening to open the fuel F supply path.
Further, the control means 8 opens the valve 252 for a predetermined time. Thereby, the fuel flow path 97 from the fuel source 21 of the fuel F
1 is promoted, and the concentration (partial pressure) of the fuel F near the fuel electrode 94 is quickly increased. Then, the fuel flow path 97
The control means 8 controls the pressure sensor 24 so that the internal pressure of the fuel F in the fuel flow path 971
The opening degree of the valve 23 is adjusted while monitoring the internal pressure.

♪♪ Operation of Fuel Cell Device 1 ♪♪ When the control means 8 performs the above processing, the fuel cell device 1
State (see FIG. 15 and Table 1 described later). The fuel cell device 1 operates as follows (see FIG. 1).
And FIG. 10).

When the valve 23 is opened, the fuel F stored in the fuel source 21 is supplied to the fuel electrode 94 through the pipe 22 and the fuel flow path 971.

When the first pump 43 is started, the wet condition adjusting water W1 in the first tank 41 passes through the pipe 42,
It is supplied to the nozzle 51. The wet state adjustment water W1 supplied to the nozzle 51 is sprayed into the space 52 from the nozzle 51, and becomes a mist (particle).

When the first fan 32 is started, air A in the atmosphere enters the pipe 31, passes through the pipe 31,
It is supplied into the space 52.

In the space 52, the wet condition adjusting water W1 sprayed from the nozzle 51 and the air A supplied from the pipe 31 are mixed. The mixed wet-conditioning water W1 and air A are supplied to the oxygen flow path 981. The air A is supplied to the oxygen electrode 95 through the oxygen flow path 981.

Then, the fuel cell 91 is
Generates electricity from the fuel F supplied to the fuel electrode 94 and the air A supplied to the oxygen electrode 95. For more information,
When the fuel F is supplied to the fuel electrode 94, the fuel F is oxidized by the function of the catalyst at the fuel electrode 94. In addition, oxygen electrode 9
When the air A is supplied to 5, the oxygen in the air A is reduced by the function of the catalyst at the oxygen electrode 95. As a result, that is, as a result of the oxidation-reduction reaction, electricity is generated in the reaction section 92. This electricity is transmitted through wires 105 and 106.
Is output.

During the power generation, when the wet state adjusting water W1 is supplied to the surface of the oxygen electrode 95, the wet state of the reaction section 92 is maintained in a state suitable for power generation. At the oxygen electrode 95, water is generated by reducing oxygen. Such a phenomenon causes the amount of water contained in the reaction section 92 to increase. On the other hand, when the temperature of the reaction section 92 rises (the reduction reaction of oxygen involves a large amount of heat), water tends to evaporate and be lost in the reaction section 92. If the water content in the reaction section 92 becomes too small, the movement of the substance (hydrogen ion) which needs to be moved during the reaction is stalled, and the power generation efficiency is reduced. On the other hand, if the water in the reaction section 92 becomes too large, the oxygen molecules become
5, it is difficult to diffuse and move through the inside, and the power generation efficiency also decreases. At this time, as in the fuel cell device 1 of the present embodiment, when the wet condition adjusting water W1 is supplied to the surface of the oxygen electrode 95, if the water in the reaction unit 92 is small, the reaction unit 92
Evaporation of water from is suppressed. As a result, the reaction unit 92
Significant loss of moisture therein is prevented. on the other hand,
When the water content in the reaction part 92 is large, the water droplets of the wet condition adjusting water W1 attached to the surface of the oxygen electrode 95 become nuclei, and water flows out of the reaction part 92 so that the water droplets become large. come. As a result, the water in the reaction section 92 is discharged,
A large increase in the water content of the reaction section 92 is prevented. Therefore, when water is supplied to the surface of the oxygen electrode 95 during power generation, the water-containing state of the reaction section 92 is suitably maintained in a state suitable for power generation.

Thereafter, the wet condition adjusting water W1 and the air A that have passed through the oxygen flow path 981 are collected by the manifold 66. The wet condition adjusting water W1 and the air A collected by the manifold 66 flow into the regenerator 62 through the pipe 61. In the regenerator 62, the wet condition adjusting water W1 and the air A are separated. At this time, the vaporized wet state conditioning water W1 is condensed and condensed.

The air A separated from the humidified water W1 in the regenerator 62 is discharged (released) into the atmosphere through an exhaust line 63. The conditioned water W1 separated from the air A in the regenerator 62 flows into the first tank 41 through the pipe 65. Thereafter, the wet condition adjusting water W1
Is supplied to the fuel cell 91 again.

As described above, in the fuel cell device 1, the wet condition adjusting water W 1 circulates between the first tank 41 and the fuel cell 91. Thereby, the effective use of the wet state adjustment water W1 is achieved. Further, in the fuel cell device 1, the water generated in the fuel cell 91 by the power generation is also effectively used as the wet state adjusted water W1.

[S16] Thereafter, the fuel cell device 1 outputs electricity. Specifically, the control means 8 controls the ammeter 10
The output of the fuel cell 91 is monitored using the voltmeter 2 and the voltmeter 103. When the output of the fuel cell 91 is stabilized, the switch 104 is turned on to start supplying current.

Therefore, for example, when the load 109 is connected to the minus terminal 107 and the plus terminal 108, a current is supplied to the load 109. Also, by this step,
Electric current is supplied from the fuel cell device 1 to the cooling / heating device 11,
The cooling / heating device 11 can be operated.

When the supply of the fuel F is started after the fuel cell 91 is moistened as in the present embodiment, the temperature of the fuel cell 91 sharply increases when the fuel cell 91 is started (at the start of power generation). Is prevented.

<<<<< Main Processing >>>>>>>> Before describing the main processing, the fuel cell device composite 10
The possible operating states will be described. Fuel cell device 1
Basically, the operation differs depending on whether the temperature of the fuel cell 91 is low or high. Further, the fuel cell device 1 includes a case where the cooling / heating device 11 is off, a case where cooling is being performed,
In principle, the operation differs when heating is performed. Table 1 below summarizes the state of the fuel cell device complex 10 and the corresponding operation of the fuel cell device 1. FIG. 15 is a state transition diagram showing a relation between each state of the fuel cell device composite 10.

[0125]

[Table 1]

Initial operation of fuel cell device 1 (state)
The temperature of the fuel cell 91 is low. In this case, as shown in FIG. 10, the fuel cell device 1 does not supply the cooling water W2 to the fuel cell 91. That is, the fuel cell device 1 does not cool the fuel cell 91.

Since the power generation by the fuel cell 91 involves a large amount of heat, if the fuel cell device 1 continues to generate power thereafter, the temperature of the fuel cell 91 rapidly rises (state). Therefore, as shown in FIG.
2 is supplied to the fuel cell 91 to cool the fuel cell 91. Further, the fuel cell device 1 drives the second fan 752 to cool the cooling water W2.

When the cooling / heating device 11 performs cooling, whether the temperature of the fuel cell 91 is low or high (state),
As shown in FIG. 11 and FIG.
Drives the second fan 752 to cool the refrigerant C.

When the cooling / heating device 11 performs heating (state), the fuel cell device complex 10 switches the flow path of the cooling water W2 to the flow path to the second heat exchanger 851. Then, as shown in FIG. 14, the third fan 852 is driven to supply the heat of the cooling water W2 to the heating device 13. When the fuel cell 91 is not sufficiently heated, the fuel cell device complex 10 starts heating after the fuel cell 91 is heated.

The fuel cell device complex 10 can appropriately perform the transition to each state and the processing corresponding to each state by the following main processing. Thereby, the fuel cell device 1 and the cooling / heating device 11 can operate smoothly.

First, the normal processing (the fuel supply control processing S2, the air supply control processing S3, the wet state adjustment water supply control processing S4, and the cooling water supply control processing S5) sequentially performed by the control means 8 will be described. After the description of the normal processing, the interrupt processing (the cooling start processing S71, the cooling end processing S75, the heating start processing S81, and the cooling start processing S71, the cooling end processing performed by the control unit 8 by interrupting the normal processing by the interruption from the cooling and heating device 11)
And the heating termination process S85) will be described.

[Fuel Supply Control Process S2] The fuel supply control process (fuel supply adjustment process) S2 is a process for controlling (adjusting) the supply of the fuel F to the fuel electrode 4. When the fuel cell 91 generates power, the fuel in the fuel flow path 971 is gradually consumed by the fuel electrode 94. Therefore, in the fuel flow path 971, the concentration (partial pressure) of the fuel decreases, and the fuel supplied to the fuel electrode 94 decreases. This results in a decrease in the output of the fuel cell 91.

Therefore, in this processing, the control means 8 periodically opens the valve 252. Specifically, when a predetermined time has elapsed since the previous opening of the valve 252, the control unit 8 opens the valve 252 for a certain time.

♪♪ Operation of Fuel Cell Device 1 ♪♪ When the valve 252 is opened, the gas (including the fuel F) in the fuel flow path 971 is discharged into the space 52 through the pipe 251. As a result, new fuel F is supplied from the fuel source 21 to the fuel flow path 971. Thereby, the concentration (partial pressure) of the fuel F near the fuel electrode 94 increases. Thereafter, the internal pressure of the fuel F in the fuel flow path 971 recovers to an internal pressure corresponding to the opening of the valve 23. The pipe 251
The fuel F flowing into the space 52 from the
Is oxidized into water, for example.

As described above, in the fuel cell device 1, the present process prevents the concentration of the fuel F from decreasing near the fuel electrode 94. That is, in the fuel cell device 1, the concentration (amount) of the fuel F supplied to the fuel electrode 94 is maintained within a predetermined range by this processing. As a result, the output of the fuel cell 91 is prevented from lowering, and the fuel cell 9
The output of 1 stabilizes.

[Air Supply Control Process S3] The air supply control process (oxygen supply control process) S3 is a process for controlling the air A supplied to the fuel cell 91. In this process, the fuel cell device 1 controls and maintains the supply of oxygen necessary for the fuel cell 91 to generate power. In addition, this processing contributes to maintaining the wet state of the reaction unit 92 in a state suitable for power generation.

In order for the wet condition adjusting water W1 to properly exhibit its function, the oxygen electrode 9 is required together with the wet condition adjusting water W1.
The amount of air A supplied to 5 is also important. Therefore, in the present process, the control means 8 adjusts the supply amount of the air A so that the supply amount of the air A corresponds to the supply amount of the wet state adjustment water W1. More specifically, the supply amount of the air A is adjusted to the wet state conditioned water W
The control means 8 adjusts the rotation speed of the first fan 32 and adjusts the supply amount of the air A so as to be proportional to (corresponding to) the supply amount of the air. For example, when the supply amount of the wet state adjustment water W1 increases in the previous wet state adjustment water supply control process S4, the control unit 8 increases the supply amount of the air A in response to the increase. Further, when the supply amount of the wet state adjustment water W1 decreases in the previous wet state adjustment water supply control processing S4, the control means 8 decreases the supply amount of the air A in response to the decrease. However, when the operation of the first fan 32 is the maximum, the control unit 8 causes the first fan 32 to maintain the operation state. When the operation of the first fan 32 is the minimum, the control unit 8 causes the first fan 32 to maintain the operation state. Thus, the oxygen required for the reaction is continuously supplied to the oxygen electrode 95.

By performing such processing by the fuel cell device 1, the inside of the fuel cell 91 becomes more suitable for power generation due to its wet state.

[Wet Condition Conditioning Water Supply Control Process S4] The wet condition conditioning water supply control process S4 is a process for controlling the wet condition conditioning water W1 supplied to the fuel cell 91. In this process, the fuel cell device 1 maintains the wet state of the fuel cell 91 in a state suitable for power generation.

The optimum supply amount of the wet condition adjusting water W 1 is related to the temperature of the fuel cell 91. Generally, the fuel cell 91
When the temperature is high, it is preferable to supply a large amount of the wet condition adjusting water W1 in proportion to the temperature. Therefore, in the present process, the supply amount of the wet state adjustment water W1 is adjusted so that the supply amount of the wet state adjustment water W1 corresponds to the temperature of the fuel cell 91.

Specifically, first, the control means 8 sends the wet-conditioning water W1 or the air A
Is obtained (this temperature information corresponds to the temperature of the fuel cell 91). Next, the control unit 8 controls the inside of the pipe 42 obtained from the water pressure sensor 44 so that the supply amount of the wet state adjustment water W1 to the fuel cell 91 is proportional to (corresponding to) the temperature of the fuel cell 91. The water supply amount of the first pump 43 and the opening of the valve 46 are adjusted with reference to the water pressure information.

In this process, the control means 8 checks the water level in the first tank 41. And the first tank 41
When the water level in the inside is high, the fuel cell device 1 discharges the surplus wet-conditioning water W1 out of the fuel cell device 1. Specifically, first, the control means 8 controls the first water level sensor 47
From 1, the water level information of the wet condition adjusting water W1 in the first tank 41 is obtained. Next, when the water level of the wet condition adjusting water W1 is equal to or higher than the predetermined value, the control unit 8 causes the regenerator 62 to discharge the excess wet condition adjusting water W1. Thereby, the water generated in the fuel cell 91 by the power generation is appropriately discharged.

[Cooling Water Supply Control Process S5] The cooling water supply control process S5 is a process for controlling the supply of the cooling water W2 to the fuel cell 91. Thereby, the temperature of the fuel cell 91 rises and the temperature of the fuel cell 91 is preferably prevented from largely deviating from the temperature range suitable for power generation.

According to this process, the fuel cell device composite 10
Moves back and forth between states. As shown in FIG. 8, the cooling water supply control process S5 includes processes S501 to S512.

[S501] First, the control means 8 checks the water level in the second tank 72. Specifically, the control means 8 obtains water level information of the cooling water W2 in the second tank 72 from the second water level sensor 791. When the water level of the cooling water W2 is equal to or less than the predetermined value, the control unit 8 issues a warning using the second alarm 792.

[S502] Next, the control means 8 checks the temperature of the fuel cell 91. Specifically, the control unit 8 obtains temperature information of the cooling water (fluid discharged from the fuel cell 91) W2 from the second temperature sensor 77. Fuel cell device 1
Here, the temperature of the cooling water W2 measured by the second temperature sensor 77 is used as an index of the temperature of the fuel cell 91. Thus, the temperature of the fluid that has passed through the fuel cell 91 is
If the temperature index is used, the temperature of the fuel cell 91 can be checked without making the configuration of the fuel cell device 1 very complicated.

[S503] Next, the control means 8 checks whether or not the heating device 13 is operating. As a result, when the heating device 13 is operating, that is, when the fuel cell device complex 10 is in the state, the control unit 8 performs step S504. On the other hand, when the heating device 13 is not operating, that is, when the fuel cell device complex 10 is in a state other than the state, the control unit 8 performs step S505.

→ [S504] The control means 8 determines in step S
The amount of air blown by the third fan 852 is adjusted according to the temperature of the fuel cell 91 obtained in 502. Specifically, the third fan 8
The control means 8 adjusts the rotation speed of the third fan 852 such that the air flow rate of the fifth fan 5 is proportional to (corresponds to) the temperature of the fuel cell 91. Then, the control means 8 ends the cooling water supply control processing S5.

→ [S505] The control means 8 controls the fuel cell 9
When the temperature of the fuel cell 1 becomes equal to or higher than the predetermined temperature, the cooling of the fuel cell 91 is started using the cooling water W2. Specifically, the temperature of the fuel cell 91 obtained in step S501 and the memory 8
2. Compare with the threshold (threshold temperature) recorded in 2.
As a result, when the temperature of the fuel cell 91 is low (still low), that is, when the fuel cell device complex 10 is to be in the state or the state, the control unit 8 proceeds to step S5.
06. On the other hand, when the temperature of the fuel cell 91 is high, that is, when the fuel cell device complex 10 is to be in the state or the state, the control unit 8 performs step S509. Note that the threshold value in this step, that is, the temperature of the fuel cell 91 at which the fuel cell device 1 starts to cool the fuel cell 91 is not particularly limited.
It is preferable to set the temperature to about 0 to 90 ° C. Thereby, the fuel cell device 1 can suitably maintain the fuel cell 91 within a temperature range suitable for power generation.

→→ [S506] The control means 8 checks whether or not the cooling device 12 is operating. That is, the control unit 8 checks whether the fuel cell device complex 10 is in the state or the state or the state or the state. As a result, when the cooling device 12 is not operating, that is, when the fuel cell device complex 10 is in the state or the state, the control unit 8 performs Step S507. On the other hand, when the cooling device 12 is operating, that is, when the fuel cell device complex 10 is in the state or the state, the control unit 8 performs step S508.

→→→ [S507] The control means 8 turns off the second pump 74 and the second fan 752. As a result, the fuel cell device complex 10 changes from the state to the state. When the second pump 74 and the second fan 752 are off, the control unit 8 sets the second pump 74 and the second
The fan 752 is kept in that state. This allows
In the fuel cell device composite 10, the state is maintained. Thereafter, the control unit 8 performs Step S512.

→→→ [S508] The control means 8 turns off only the second pump 74. As a result, the fuel cell device complex 10 changes from the state to the state. When the second pump 74 is off, the control unit 8 sets the second pump 74
To maintain that state. As a result, the state is maintained in the fuel cell device composite 10. Thereafter, the control unit 8 performs Step S512.

→→ [S509] The control means 8 checks whether or not the cooling device 12 is operating. That is, the control unit 8 checks whether the fuel cell device complex 10 is in the state or the state or the state or the state. As a result, when the cooling device 12 is not operating, that is, when the fuel cell device complex 10 is in the state or the state, the control unit 8 performs Step S510. On the other hand, when the cooling device 12 is operating, that is, when the fuel cell device complex 10 is in the state or the state, the control unit 8 performs step S511.

→→→ [S510] The control means 8 turns on the second pump 74 and the second fan 752. As a result, the fuel cell device complex 10 changes from the state to the state. When the second pump 74 and the second fan 752 are on, the control unit 8 sets the second pump 74 and the second
The fan 752 is kept in that state. This allows
In the fuel cell device composite 10, the state is maintained. Thereafter, the control unit 8 performs Step S512.

→→→ [S511] The control means 8 turns on only the second pump 74. As a result, the fuel cell device complex 10 changes from the state to the state. When the second pump 74 is on, the control unit 8 controls the second pump 74
To maintain that state. As a result, the state is maintained in the fuel cell device composite 10. Thereafter, the control unit 8 performs Step S512.

[S512] The control means 8 determines in step S5
In accordance with the temperature of the fuel cell 91 obtained in step 02 and the operation state of the cooling device 12, the air flow of the second fan 752 is adjusted. More specifically, the control means 8 makes the amount of air blown by the second fan 752 proportional to (corresponds to) the sum of the temperature of the fuel cell 91 and the amount of cool air supplied (generated amount) in the cooling device main body 121. Next, the rotation speed of the second fan 752 is adjusted. Note that when the cooling device 12 is off, that is, when the fuel cell device complex 10 is in the state, the contribution of the cooling device 12 to the amount of air blown by the second fan 752 is set to zero. Therefore, when the cooling device 12 is off, the amount of air blown by the second fan 752 is proportional to (corresponds to) the temperature of the fuel cell 91. When the temperature of the fuel cell 91 is lower than the predetermined temperature (see the threshold value in step S505), that is, when the fuel cell device complex 10 is in the state, the second fan 7
It is assumed that the contribution of the fuel cell 91 to the air volume 52 is zero.
Therefore, when the temperature of the fuel cell 91 is lower than the predetermined temperature, the amount of air blown by the second fan 752 is
Will be proportional to (corresponding to) the operating status. Moreover,
When the cooling device 12 is off and the temperature of the fuel cell 91 is lower than the predetermined temperature, that is, when the fuel cell device complex 10 is in the state, the air volume of the second fan 752 becomes zero.

♪♪ Operation of Fuel Cell Device 1 ♪ Hereinafter, the operation when the fuel cell device complex 10 is in the state will be described with reference to FIG. The fuel cell device 1
The operation other than the cooling means 70 is the same as that of the state, and the description thereof is omitted (the same applies to the description of the operation in other states). The operation in the case of the state will be described after the description of the cooling start processing S71 is completed. The operation in the case of the state is performed after the description of the heating start process S81 is completed.
explain.

When the second pump 74 is operated, the cooling water W
2 is the second tank 72 → pipe 73 → oxygen electrode side cooling water flow path 983 → pipe 71 → fuel electrode side cooling water flow path 973 → pipe 7
6 → First heat exchanger 751 → Pipe 78 → Second tank 72
And circulate.

At this time, the fuel cell 91 is cooled by the cooling water W2 passing near the fuel cell 91.
Specifically, when the cooling water W2 passes through the oxygen electrode side cooling water flow path 983, the portion of the fuel cell 91 on the oxygen electrode 95 side is cooled, and when the cooling water W2 passes through the fuel electrode side cooling water flow path 973. The part of the fuel cell 91 on the fuel electrode 94 side is cooled. As a result, the temperature of the cooling water W2 increases in exchange for cooling the fuel cell 91.

The cooling water W2 whose temperature has increased is supplied to the first heat exchanger 751. The cooling water W2 supplied into the first heat exchanger 751 exchanges heat with the atmosphere in a cooling water channel 753. Thereby, the cooling water W2 radiates heat and is cooled.

At this time, the air is supplied to the cooling water channel 753 by the second fan 752. This wind promotes heat exchange between the atmosphere and the cooling water W2, and as a result, the second
Cooling of the cooling water W2 is promoted.

The cooled water W2 flows into the second tank 72. Thereafter, the cooled cooling water W2
Is supplied to the fuel cell 91 again. When the cooling water W2 is supplied to the fuel cell 91 in this manner, the fuel cell 91 can be efficiently cooled.

☆☆ When the control means 8 performs the normal processing in this way and the cooling / heating device 11 interrupts the control means 8, the control means 8 interrupts the normal processing, and Perform processing. After interrupt processing ends,
The control means 8 resumes the normal processing from the place where it was interrupted, for example.

The interrupt processing performed by the control means 8 includes:
As described above, the cooling start process S71 and the cooling end process S
75, heating start processing S81, and heating end processing S85
Is mentioned. Hereinafter, these processes will be described.

[Cooling start process S71] Cooling start process S7
1 is a process that the cooling / heating device 11 issues an interrupt request to the control unit 8 when the cooling device 12 starts cooling, and the control unit 8 responds to the request. Thereby, the cooling device main body 121 can appropriately and smoothly perform cooling.

By this processing, the fuel cell device composite 10
Becomes a state in the case of a state, and becomes a state in the case of a state. As shown in FIG. 6, the cooling start process S71 includes steps S711 to S713.

This processing is performed by the cooling / heating device 11 transmitting information to the effect that the cooling is to be started to the control means 8 in order to start the cooling.

[S711] The control means 8 controls the air conditioner 1
If a request to start cooling from 1 is received,
First, the second fan 752 is operated. Specifically, when receiving a request to start cooling from the cooling / heating device 11, the control unit 8 checks whether the second fan 752 is operating, and the second fan 752 is already operating. If it is, that is, if the fuel cell device complex 10 is in the state, → Step S713 is performed. As a result, the fuel cell device composite 10 enters a state. On the other hand, the second fan 752
If is not operating, that is, if the fuel cell device complex 10 is in the state, → [S712] After turning on the second fan 752, step S713 is performed. Thereby, the fuel cell device composite 1
0 is a state.

[S713] The control means 8 controls the air conditioner 1
1, information indicating that cooling is possible is transmitted.

♪♪ Operation of Fuel Cell Device Complex 10 ♪ When the temperature of the fuel cell 91 is low (state), the refrigerant C flows to the first heat exchange section 75 as shown in FIG.
Note that the cooling water W2 does not flow. On the other hand, when the temperature of the fuel cell 91 is high (state), the refrigerant C and the cooling water W2 flow to the first heat exchange unit 75, as shown in FIG. In this case, in the second heat exchange section 75, both the refrigerant C and the second cooling water W2 are simultaneously cooled. Note that the operation of the cooling water W2 in the state is the same as the operation described in the cooling water supply control processing S5, and a description thereof will be omitted.

When the cooling / heating device 11 receives the information indicating that cooling is possible, the cooling device 12 starts cooling.

When the cooling is started, the cooling device main body 121 is started.
Cools air using the refrigerant C and blows cool air. At this time, when the air is cooled, the heat transfers to the refrigerant C, and the temperature of the refrigerant C rises. This increased temperature of the refrigerant C
From the cooling device main body 121 to the first heat exchange line 122
Is supplied to the first heat exchanger 751 via the. The refrigerant C supplied into the first heat exchanger 751 is supplied to the refrigerant flow path 754
To exchange heat with the atmosphere. Thereby, the refrigerant C radiates heat and is cooled.

At this time, the air is supplied to the refrigerant channel 754 by the second fan 752. Due to this wind, heat exchange between the atmosphere and the refrigerant C is promoted, and as a result, cooling of the refrigerant C is promoted.

The refrigerant C that has radiated heat and cooled in the first heat exchanger 751 flows into the cooling device main body 121 through the first heat exchange line 122. Then, the cooling device body 121
Uses the cooled refrigerant C to cool air and blows cool air.

[Cooling end process S75] Cooling end process S7
5 is a process performed by the control means 8 by interruption when the cooling device 12 has finished cooling. Thereby, the fuel cell device composite body 10 can prevent unnecessary consumption of energy by driving the second fan 752 unnecessarily.

By this processing, the fuel cell device composite 10
Is a state in the case of a state and a state in the case of a state. As shown in FIG. 6, the cooling end process S75 includes steps S751 to S752.

Prior to performing this processing, the air conditioner 11
Terminates the cooling and stops the circulation of the refrigerant C. And
The cooling / heating device 11 transmits to the control means 8 information indicating that cooling has been completed.

[S751] The control means 8 terminates the operation of the second fan 752 when receiving the information indicating that the cooling has been completed from the cooling and heating device 11 and when the temperature of the fuel cell 91 is low. Specifically, when the control unit 8 receives the information indicating that the cooling has been completed from the cooling / heating device 11,
It is checked whether or not the second pump 74 is operating. If the second pump 74 is operating, that is, if the fuel cell device complex 10 is in a state, the cooling end process S75 is directly performed. finish. That is, the control means 8 does not perform any special processing, and the cooling end processing S
Terminate 75. Thereby, the fuel cell device composite 10
Becomes a state. On the other hand, when the second pump 74 is not operating, that is, when the fuel cell device complex 10 is in the state, → [S752] the second fan 752 is turned off. afterwards,
The control means 8 ends the cooling end process S75. As a result, the fuel cell device composite 10 enters a state.

[Heating Start Processing S81] Heating Start Processing S7
1 is a process performed by the cooling / heating device 11 when the heating device 13 starts heating, issues an interrupt request to the control means 8 and the control means 8 responds to the request. Thereby, the heating device main body 131 can appropriately and smoothly perform heating.

By this processing, the fuel cell device composite 10
Changes from state to state. As shown in FIG. 7, the heating start process S81 includes steps S811 to S816.

This processing is performed by the cooling / heating device 11 transmitting information to the effect that the heating is to be started to the control means 8 in order to start the heating.

[S811] The control means 8 controls the air conditioner 1
If you receive a request from 1 to start heating,
First, it is checked whether the temperature of the fuel cell 91 is equal to or higher than a predetermined temperature. That is, the control unit 8 controls the fuel cell device 1
Check to see if the state is Specifically, when receiving a request to start heating from the cooling / heating device 11, the control unit 8 checks whether the second pump 74 is operating, and determines whether the second pump 74 is operating. If not, that is, if the fuel cell device complex 10 is in the state, step S812 is performed. On the other hand, when the second pump 74 is operating, that is, when the fuel cell device complex 10 is in the state, step S813 is performed.

[S812] The control means 8 transmits to the cooling / heating device 11 information indicating that the temperature of the fuel cell 91 has not yet risen sufficiently and hot air cannot be supplied. After that, the control unit 8 ends the heating start process S81.

* In this case, after waiting for a predetermined time, the cooling / heating device 11 transmits information indicating that heating is to be started again. That is, in the fuel cell device complex 10, after waiting for a predetermined time, the heating start process S81 is performed again. Since the fuel cell 91 generates a large amount of heat due to the power generation, if the power generation is continued, the temperature of the fuel cell 91 rises, and the fuel cell device complex 10 quickly transitions from the state to the state. For this reason, if the cooling / heating device 11 continues to transmit information indicating that heating is to be started periodically, the fuel cell device composite 1
At 0, heating is started immediately thereafter.

[S813] The control means 8 sets the cooling water W2
Is switched from the flow path to the first heat exchange section 75 to the flow path to the second heat exchange section 85. Specifically, the control means 8
Switches the flow path of the upstream switching valve 861 from the flow path to the first heat exchanger 751 to the flow path to the second heat exchanger 851. Further, the control means 8 switches the flow path of the downstream switching valve 862 from the flow path from the first heat exchanger 751 to the flow path from the second heat exchanger 851.

[S814] Next, the control means 8 promotes the heat exchange of the cooling water W2 in the second heat exchange section 85, and starts supplying the hot air H to the heating device main body 131. Specifically, the control unit 8 turns on the third fan 852.

[S815] Next, the control means 8 turns off the second fan 752. Thus, the fuel cell device composite body 10 can prevent unnecessary consumption of energy by driving the second fan 752 unnecessarily.

[S816] The control means 8 controls the air conditioner 1
1, information indicating that heating is possible and the supply of hot air H has started is transmitted. After that, the control unit 8 ends the heating start process S81. Thereby, the fuel cell device composite 1
0 is a state.

[0189] Upon transmitting the information indicating that the supply of the hot air H has been started, the cooling / heating device 11 starts heating.

♪♪ Operation of Fuel Cell Device Complex 10 ♪ The operation when the fuel cell device complex 10 is in the state will be described below with reference to FIG. In the basin flowing from the downstream switching valve 862 to the upstream switching valve 861 via the fuel cell 91, the operation of the cooling water W2 is as follows.
Since the operation is the same as that described in the cooling water supply control process S5,
Description is omitted.

The flow path to the first heat exchanger 751 is closed,
When the flow path to the second heat exchanger 851 is opened, the cooling water W2
From the upstream switching valve 861 to the pipe 87 → the second
Heat exchanger 851 → pipe 88 → downstream switching valve 86
2 and it starts to flow.

The cooling water W 2 whose temperature has risen due to the cooling of the fuel cell 91 is supplied to the second heat exchanger 851. Second
The cooling water W2 supplied into the heat exchanger 851 exchanges heat with the air in the air flow path 854 in the cooling water flow path 853.
Thereby, the cooling water W2 radiates heat and is cooled.

At this time, the air is supplied to the cooling water passage 853 by the third fan 852 through the air passage 854. This wind promotes heat exchange between the air in the air flow path 854 and the cooling water W2, and as a result, the second cooling water W
2 is promoted. Further, the air in the air flow path 854 acquires heat by heat exchange with the cooling water W2 and becomes warm air. This warm air is pushed by the new air blown by the third fan 852, becomes hot air H, and flows into the second heat exchange line 132. This hot air H is supplied to the second heat exchanger 8.
From 51, the air is sent to the heating device main body 131 through the second heat exchange line 132. And the heating device main body 131
Supplies the warm air H and performs heating.

The cooling water W2 cooled in the second heat exchange section 85 flows into the second tank 72.

[Heating end processing S85] Heating end processing S8
5 is a process performed by the control means 8 by interruption when the heating device 13 completes heating. Thus, the fuel cell device 1 can smoothly generate power thereafter.

By this processing, the fuel cell device composite 10
Changes from state to state. As shown in FIG. 7, the heating end process S85 includes steps S851 to S854.

This processing is performed by the cooling / heating device 11 transmitting information to the effect that the heating is to be ended to the control means 8 in order to end the heating.

[S851] When the control means 8 receives the information indicating that the heating is to be ended from the cooling / heating device 11, the control means 8 changes the flow path of the cooling water W2 from the flow path to the second heat exchange section 85 to the first heat exchange. The flow is switched to the flow path to the section 75. Specifically, the control means 8 sets the flow path of the upstream switching valve 861 to the second
The flow path to the heat exchanger 851 is switched to the flow path to the first heat exchanger 751. Further, the control unit 8 switches the flow path of the downstream switching valve 862 from the flow path from the second heat exchanger 851 to the flow path from the first heat exchanger 751.

[S852] Next, the control means 8 uses the first heat exchange section 75 instead of the second heat exchange section 85 to control the cooling water W1.
Continue cooling. Specifically, the control unit 8 turns on the second fan 752. Thereby, the fuel cell device 1
With this configuration, the cooling of the fuel cell 91 can be suitably and smoothly continued.

[S853] Next, the control means 8 turns off the third fan 852. Thereby, the heating device body 13
The supply of the warm air H to 1 ends. Thus, the fuel cell device composite 10 can prevent unnecessary consumption of energy by driving the third fan 852 unnecessarily.

[S854] Next, the control means 8 stops supplying the hot air H to the cooling / heating device 11 and transmits information to the effect that the preparation for ending the heating is completed. As a result, the fuel cell device composite 10 enters a state. Then, the cooling and heating device 1
1 ends heating.

The control means 8 comprises a fuel supply control process S2, an air supply control process S3, and a wet condition adjusted water supply control process S
4, and after performing the cooling water supply control processing S5, the following step S90 is performed.

[Step S90] Thereafter, when the operation of the fuel cell device 1 is to be terminated, the control means 8 performs a termination process S9,
If the operation is not completed, the control means 8 waits for a predetermined time (wait) and then performs the main processing again.

[End Process S9] The end process S9 is a process for properly terminating the fuel cell device complex 10. When the fuel cell device complex 10 is terminated, the control means 8
Performs this termination processing S9. As shown in FIG. 9, the end process S9 includes steps S91 to S97.

[S91] First, the control means 8 causes the cooling / heating device 11 to terminate the operation. Specifically, the control means 8
Transmits information to the effect that the operation of the fuel cell device 1 is terminated to the cooling / heating device 11. At the same time, the air conditioner 11
If is performing cooling, the control means 8 performs cooling end processing S75. When the cooling / heating device 11 is performing heating, the control unit 8 performs a heating end process S85. As described above, in the fuel cell device complex 10, the operation of the cooling / heating device 11 is completed.

[S92] Next, the control means 8 ends the output of electricity of the fuel cell device 1. Specifically, the control unit 8 turns off the switch 104 and stops the current supply.

[S93] Next, the control means 8 turns off the fuel supply means 2. Specifically, the control means 8 closes the valve 23 and shuts off the flow path of the fuel F. The control means 8 opens the valve 252 for a predetermined time and then closes it.
Thereby, the fuel cell device 1 can release the pressure in the fuel flow path 971. As described above, in the fuel cell device 1, the supply of the fuel F to the fuel electrode 94 is stopped.

[S94] Next, the control means 8 turns off the cooling water supply means 7. More specifically, the control unit 8
When the fan 752 is on, the second fan 752 is turned off. Further, the control means 8 controls the second pump 7
When the switch 4 is on, the second pump 74 is turned off. Thus, in the fuel cell device 1, the circulation of the cooling water W2 is stopped, and the supply of the cooling water W2 to the fuel cell 91 is stopped.

[S95] Next, the control means 8 turns off the wet condition adjusting water supply means 4. Specifically, the control means 8
Turns off the first pump 43 and closes the valve 46. As described above, in the fuel cell device 1, the circulation of the wet condition adjusting water W1 is stopped, and the supply of the wet condition adjusting water W1 to the surface of the oxygen electrode 95 is stopped.

[S96] Next, the control means 8 turns off the air supply means 3. Specifically, the control unit 8 turns off the first fan 32. As described above, in the fuel cell device 1, the supply of the air A to the oxygen electrode 95 is stopped.

[S97] Next, the control means 8 turns off the reproduction means 6. Specifically, the control means 8 controls the playback device 62
Turn off. Further, the control means 8 closes the valve 64,
Close the air A discharge path. As described above, the fuel cell device 1
The operation of is terminated.

(2) Fuel cell device composite 10
Advantages ◆◆◆◆◆◆◆ The fuel cell device complex 10 described above has the following advantages.

In the fuel cell device composite 10 of the present invention, the number of members to be installed can be reduced, and the installation space for the device can be reduced. Moreover, the fuel cell device composite 10 of the present invention
Can effectively use the heat generated in the fuel cell 91.

As described above, the fuel cell device composite 10
In this configuration, a portion for cooling the cooling water W2 and a portion for cooling the refrigerant C are shared. Fuel cell device complex 10
Uses the second heat exchanger 751 to cool not only the cooling water W2 for cooling the fuel cell 91 but also the refrigerant C used for the cooling device 12. Therefore, the fuel cell device complex 1
In the case of 0, the heat exchanger of the cooling device 12 is omitted to save space.

In response, the fuel cell device composite 10
Thus, the common use of the cooling promotion means for promoting the cooling of the cooling water W2 and the cooling promotion means for promoting the cooling of the refrigerant C is achieved. The fuel cell device complex 10 can promote cooling of both the cooling water W2 and the refrigerant C by the second fan (blower) 752. For this reason, in the fuel cell device composite 10, the number of installed blowers is reduced, and space is saved. Further, the fuel cell device complex 1
A value of 0 is excellent from the viewpoint of energy saving because the cooling of the cooling water W2 and the cooling of the refrigerant C can be promoted by one fan.

Further, in the fuel cell device complex 10 of the present invention, the heat generated in the fuel cell 91 can be used for heating. Moreover, such a point leads to heating without using the electricity generated by the fuel cell 91 to generate heat. For this reason, in the fuel cell device composite 10,
Electricity generated by the fuel cell 91 can be meaningfully distributed to uses other than heating. Fuel cell device complex 10
In this regard, in this regard, energy is being effectively used.

Further, in the fuel cell device complex 10, since the heat generated by the fuel cell 91 is used as the heat source of the heating device 13, the heating device 13 needs to have its own heat source for heating. Disappears. This contributes to further space saving of the fuel cell device composite 10.

As described above, the fuel cell device composite of the present invention can effectively use the heat generated in the fuel cell. This has a high value in terms of effective use of energy. Further, the fuel cell device composite of the present invention is also excellent in space saving. Therefore, the fuel cell device composite of the present invention is extremely advantageous for installation in a car or the like. For example, when a fuel cell device is installed in an automobile or the like, the fuel cell device is greatly restricted in installation space. According to the present invention, a cooling and heating device (so-called air conditioner) normally mounted in an automobile and members Can be shared. Therefore, according to the present invention, it is possible to preferably perform cooling and heating in the vehicle interior while effectively utilizing a small installation space in the vehicle. As described above, the present invention is also excellent in terms of miniaturization of the device, and can greatly contribute to mounting of a fuel cell in a field where application is considered to be promising, such as an automobile.

Although the present invention has been described based on the preferred embodiments shown in the accompanying drawings, it goes without saying that the present invention is not limited to these embodiments.

[0220] For example, the fuel supply means may be configured to store methanol in a fuel source, decompose the methanol to generate hydrogen, and supply the hydrogen to the fuel electrode.

In the embodiment of the present invention described above, a blower is mentioned as a means for promoting cooling of cooling water. However, means for promoting cooling of cooling water include those other than the blower.
For example, a Pelze (Peltier) element, a ram style, or the like may be used.

In the embodiment of the present invention described above, water (including pure water) is described as a representative of the refrigerant used for cooling the fuel cell. However, a refrigerant other than water may be used as the refrigerant. Good.

[0223]

As described above, according to the present invention, the heat generated in the fuel cell, the installation space of the apparatus, and the like can be effectively utilized. Through these points, the present invention can contribute to the effective use of the fuel cell device from a viewpoint and direction different from the supply of electricity.

[Brief description of the drawings]

FIG. 1 is a circuit diagram showing an embodiment of a fuel cell device composite according to the present invention, in combination with FIG.

FIG. 2 is a longitudinal sectional view showing a fuel cell included in the fuel cell device shown in FIG.

FIG. 3 is a block diagram showing a control system of the fuel cell device composite according to the embodiment.

FIG. 4 is a flowchart illustrating an operation procedure of the fuel cell device composite according to the present embodiment.

FIG. 5 is a flowchart showing a procedure of a starting process shown in FIG. 4;

FIG. 6 is a flowchart illustrating a procedure of an interrupt operation of the cooling device.

FIG. 7 is a flowchart illustrating a procedure of an interrupt operation of the heating device.

8 is a flowchart showing a procedure of a cooling water supply control process shown in FIG.

FIG. 9 is a flowchart illustrating a procedure of an end process illustrated in FIG. 4;

FIG. 10 is a circuit diagram showing an embodiment of the fuel cell device composite according to the present invention, together with FIG.

FIG. 11 is a circuit diagram for explaining the operation of the fuel cell device complex shown in FIGS. 1 and 10;

FIG. 12 is a circuit diagram for explaining the operation of the fuel cell device complex shown in FIGS. 1 and 10;

FIG. 13 is a circuit diagram for explaining the operation of the fuel cell device complex shown in FIGS. 1 and 10;

FIG. 14 is a circuit diagram for explaining an operation of the fuel cell device complex shown in FIGS. 1 and 10;

FIG. 15 is a state transition diagram illustrating an operation procedure of the fuel cell device composite according to the present embodiment.

[Explanation of symbols]

 REFERENCE SIGNS LIST 10 fuel cell device composite 1 fuel cell device 2 fuel supply means 21 fuel source 22 pipe 23 valve 24 pressure sensor 25 fuel discharge means 251 pipe 252 valve 3 air supply means 31 pipe 32 first fan 4 wet condition adjusted water supply means 41 First tank 42 Piping 43 First pump 44 Water pressure sensor 45 Bypass line 46 Valve 47 First water level detecting means 471 First water level sensor 472 First alarm 5 Gas-liquid mixing means 51 Nozzle 52 Space 6 Regenerating means 61 Piping 62 Regenerating machine 63 Exhaust line 64 Valve 65 Piping 66 Manifold 67 First temperature sensor 7 Cooling water supply means (refrigerant supply means) 70 Cooling means 71 Pipe 72 Second tank 73 Pipe 74 Second pump 75 First heat exchanger 751 First heat exchanger 752 Second fan (cooling promotion Step) 753 Cooling water flow path 754 Refrigerant flow path 76 Piping 77 Second temperature sensor 78 Piping 79 Second water level detecting means 791 Second water level sensor 792 Second alarm 85 Second heat exchange part 851 Second heat exchanger 852 Third fan (Heat exchange promoting means) 853 Cooling water flow path 854 Air flow path 86 Flow path switching means 861 Upstream switching valve 862 Downstream switching valve 87 Piping 88 Piping 8 Controlling unit 81 CPU 82 Memory 83 I / O port 9 Battery body 91 Fuel Battery 92 Reaction part 93 Electrolyte layer 94 Fuel electrode 95 Oxygen electrode 97 Fuel electrode side battery frame 971 Fuel flow path 972 groove 973 Fuel electrode side cooling water flow path 974 Hole 98 Oxygen electrode side battery frame 981 Oxygen flow path 982 Groove 983 Oxygen electrode side Cooling water flow path 984 holes 101 Output mechanism 102 Ammeter 103 Voltmeter 04 switch 105 wiring 106 wiring 107 minus terminal 108 plus terminal 109 load F fuel A air W1 wet condition adjustment water W2 cooling water (refrigerant) 11 cooling / heating device 110 cooling / heating device body 12 cooling device 121 cooling device body 122 first heat exchange line 13 Heating device 131 Heating device main body 132 Second heat exchange line C Refrigerant H Hot air S1 Start-up process S11 to S16 Step S2 Fuel supply control process S3 Air supply control process S4 Wet state adjustment water supply control process S5 Cooling water supply control process S501 to S501 S512 Step S71 Cooling start processing S711 to S713 Step S75 Cooling end processing S751 to S752 Step S81 Heating start processing S811 to S816 Step S85 Heating end processing S851 to S854 Step S90 Step S 9 End processing S91 to S97 Step

 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 3L054 BE10 5H026 AA06 5H027 AA06 BA13 DD00 5H115 PG10 PI18 PI30 QA02 QA04 QN02 QN12 TI05 TI06 TI10 TR19 TU12 TZ07 UI29 UI30

Claims (13)

[Claims] 1. A fuel cell device comprising: a fuel cell; cooling means for supplying a refrigerant to the fuel cell to cool the fuel cell; and a heat exchange unit for exchanging heat of the refrigerant. A fuel cell device wherein the heat exchange part is shared with a device other than the fuel cell device. 2. The fuel cell device according to claim 1, wherein the device other than the fuel cell device is a cooling device that performs cooling using a refrigerant. 3. The fuel cell device according to claim 2, wherein the heat exchange unit can cool the refrigerant supplied to the fuel cell and the refrigerant of the cooling device. 4. By performing heat exchange with the atmosphere,
The fuel cell device according to claim 3, wherein cooling of the refrigerant supplied to the fuel cell and cooling of the cooling device is performed. 5. The fuel cell device according to claim 3, further comprising cooling promotion means for promoting cooling of the refrigerant supplied to the fuel cell and the refrigerant of the cooling device in the heat exchange unit. 6. The fuel cell device according to claim 5, wherein the cooling promotion unit is configured by a blower that sends air to the heat exchange unit. 7. The heat exchange unit includes a heat exchanger that cools a refrigerant supplied to the fuel cell, and the heat exchanger is used for sharing with a device other than the fuel cell device. Item 7. The fuel cell device according to any one of Items 1 to 6. 8. The heat exchange unit has a first heat exchanger and a second heat exchanger for cooling a refrigerant supplied to the fuel cell, wherein the first heat exchanger includes: The fuel cell device according to any one of claims 1 to 7, wherein a cooling device is connected, and a heating device is connected to the second heat exchanger. 9. The fuel cell system according to claim 8, further comprising a flow path switching means for switching a flow path of a refrigerant supplied to the fuel cell between the first heat exchanger and the second heat exchanger. Fuel cell device. 10. The fuel cell device according to claim 8, wherein the cooling device and / or the heating device performs cooling or heating in a vehicle cabin. 11. The fuel cell device according to claim 1, wherein the refrigerant supplied to the fuel cell is water. 12. A fuel cell device composite comprising: a fuel cell device having a fuel cell and cooling means for supplying a refrigerant to the fuel cell to cool the fuel cell; and a cooling device performing cooling using the refrigerant. A fuel cell device composite, wherein a portion for cooling a refrigerant supplied to the fuel cell and a portion for cooling a refrigerant of the cooling device are at least partially shared. 13. A fuel cell device composite, comprising: a fuel cell device that generates power using a fuel cell; and a heating device that performs heating by using heat generated by the fuel cell device.