JP5444828B2 - Fuel cell power generator - Google Patents

Description

  The present invention relates to a fuel cell power generator used in a stationary cogeneration system installed on a site such as a pipe shaft (PS) of an apartment house, a general household, or a business office.

  Conventionally, fuel cell power generators capable of high-efficiency and small-scale power generation are easy to construct a system for using thermal energy generated during power generation. Development is underway as a power generation system.

  In a fuel cell power generator, during a power generation operation, a fuel gas and an oxidant gas are respectively supplied to a fuel cell main body (hereinafter referred to as a cell stack) disposed as a main body of the power generation unit. In the cell stack, a predetermined electrochemical reaction proceeds using hydrogen in the supplied fuel gas and oxygen in the oxidant gas. As the electrochemical reaction proceeds, the chemical energy of hydrogen and oxygen is converted into electrical energy and thermal energy. Electric energy is converted from direct current generated into alternating current and used as electric power at home. In order to make effective use of thermal energy, it is stored in the form of hot water in hot water storage tanks and used as heat for hot water used at home and the like.

  Therefore, as shown in FIG. 10, the conventional fuel cell power generation apparatus has a main body package 100 including a power generation unit that generates power, such as a cell stack, and an auxiliary device that holds heat as hot water and performs boiling when there is no hot water. An example is disclosed in which a hot water storage package 110 including a hot water storage tank having a heat source is disposed separately (see, for example, Patent Document 1).

  Moreover, the example which comprised the fuel cell power generation system containing a cell stack and the hot water storage system containing an auxiliary heat source in the common baseplate comprised the fuel cell cogeneration system is disclosed (for example, refer patent document 2).

JP 2004-111208 A JP-A-2005-32461

  However, in the configuration of the conventional fuel cell power generation device of Patent Document 1, since the main body package 100 and the hot water storage package 110 are separately arranged, the occupied area becomes large, and thus there is a problem that the place where it can be installed is limited. It was.

  In addition, according to the configuration of the fuel cell cogeneration system of Patent Document 2, in order to eliminate connection work in the field, the installation is improved by fixing and integrating parts on a common base plate. The installation area can be reduced. However, in the above configuration, if the exhaust direction of the exhaust gas is not fixed and there are walls or objects that obstruct the exhaust gas flow on the exhaust gas discharge surface, the air or gas discharged by the fuel cell cogeneration system is sucked again. There was a problem that the power generation efficiency decreased. Further, there is a problem that the arrangement of the fuel cell cogeneration system is limited if there is not enough open space around.

The present invention solves the above-mentioned conventional problems, and maintains high power generation efficiency without sucking exhausted air or gas again, and can be easily installed even in a place where there is a structure between external spaces It aims at providing a battery power generation device.

In order to solve the above-described conventional problems, the present invention provides a fuel generator that generates a fuel gas from a raw material gas , an oxidant gas supply unit that supplies an oxidant gas , and power from the fuel gas and the oxidant gas. and FC unit having the cell stack, a for generating the hot water storage tank for storing the recovered heat in FC units, and the hot water storage auxiliary heat source apparatus for heating the water in the tank, the fuel cell power generation comprising: a hot water storage unit, a with The FC unit and the hot water storage unit are arranged adjacent to a space surrounded by a shield including a front door and a wall, and are arranged between the FC unit and the door. The FC outlet guide member that guides the gas exhausted from the FC unit to the outside of the door, and is disposed between the hot water storage unit and the door, and exhausts from the hot water storage unit. A hot water storage exit guide member for guiding the body to the outside of the door, are disposed on the exterior surface of the FC unit is a fuel cell power generator and a FC air inlet to supply air to the FC unit.
The present invention also includes a fuel generator that generates fuel gas from a raw material gas, an oxidant gas supply unit that supplies oxidant gas, and a cell stack that generates electric power from the fuel gas and oxidant gas. A fuel cell power generator comprising: an FC unit; and a hot water storage unit having a hot water storage tank for storing heat recovered by the FC unit, and an auxiliary heat source unit for heating water in the hot water storage tank, wherein the FC unit The hot water storage unit is disposed adjacent to a space surrounded by a shield including a front door and a wall on the front, and is disposed between the FC unit and the door, and gas exhausted from the FC unit. Is disposed between the hot water storage unit and the door, and stores the gas exhausted from the hot water storage unit to the outside of the door. An outlet guide member, disposed between the FC unit and the door, and the FC inlet guide member for guiding a gas for supply to the FC unit from outside of the door may be a fuel cell power plant having a.
The present invention also includes a fuel generator that generates fuel gas from a raw material gas, an oxidant gas supply unit that supplies oxidant gas, and a cell stack that generates electric power from the fuel gas and oxidant gas. A fuel cell power generator comprising: an FC unit; a hot water storage tank for storing heat recovered by the FC unit; and a hot water storage unit having an auxiliary heat source unit for heating water in the hot water storage tank. And the hot water storage unit is disposed adjacent to a space surrounded by a shield including a front door and a wall, and is disposed between the fuel cell power generation device and the door, and the FC unit and the An all-air outlet guide member that guides the gas exhausted from the hot water storage unit to the outside of the door, and is disposed between the fuel cell power generator and the door, and the FC unit and the A total air inlet guide member for guiding the gas to supply the hot water unit from the outside of the door may be a fuel cell power plant having a.
The present invention also includes a fuel generator that generates fuel gas from a raw material gas, an oxidant gas supply unit that supplies oxidant gas, and a cell stack that generates electric power from the fuel gas and oxidant gas. A fuel cell power generation apparatus comprising: an FC unit; and an auxiliary heat source unit that heats water in a hot water storage tank that stores heat recovered by the FC unit, wherein the FC unit and the auxiliary heat source unit are surrounded by Adjacent to a space surrounded by a shield including the front door and wall
Disposed between the FC unit and the door, between the FC outlet guide member that guides the gas exhausted from the FC unit to the outside of the door, and between the auxiliary heat source device and the door. An auxiliary heat source unit outlet guide member that guides the gas exhausted from the auxiliary heat source unit to the outside of the door, and an FC air supply port that is disposed on the exterior surface of the FC unit and supplies air to the FC unit. A fuel cell power generator may be used.
The present invention also includes a fuel generator that generates fuel gas from a raw material gas, an oxidant gas supply unit that supplies oxidant gas, and a cell stack that generates electric power from the fuel gas and oxidant gas. A fuel cell power generation apparatus comprising: an FC unit; and an auxiliary heat source unit that heats water in a hot water storage tank that stores heat recovered by the FC unit, wherein the FC unit and the auxiliary heat source unit are surrounded by An FC outlet disposed adjacent to a space surrounded by a shield including a front door and a wall, disposed between the FC unit and the door, and guides gas exhausted from the FC unit to the outside of the door. A guide member, an auxiliary heat source unit outlet guide member that is disposed between the auxiliary heat source unit and the door, and guides the gas exhausted from the auxiliary heat source unit to the outside of the door; the FC unit; Disposed between the FC inlet guide member for guiding a gas for supply to the FC unit from outside of the door may be a fuel cell power plant having a.
The present invention also includes a fuel generator that generates fuel gas from a raw material gas, an oxidant gas supply unit that supplies oxidant gas, and a cell stack that generates electric power from the fuel gas and oxidant gas. A fuel cell power generation apparatus comprising: an FC unit; and an auxiliary heat source unit that heats water in a hot water storage tank that stores heat recovered by the FC unit, wherein the FC unit and the auxiliary heat source unit are surrounded by Arranged adjacent to a space surrounded by a shield including a front door and a wall, disposed between the fuel cell power generation device and the door, and the gas exhausted from the FC unit and the auxiliary heat source unit An all-air outlet guide member that leads to the outside of the door, and is arranged between the fuel cell power generation device and the door, and guides the gas supplied to the FC unit and the auxiliary heat source unit from the outside of the door. An air inlet guide member may be a fuel cell power plant having a.

  Thereby, since the exhausted air and gas are not sucked again, a high power generation efficiency can be maintained, and a fuel cell power generator that can be installed even if there is a structure between the external spaces can be realized.

  The fuel cell power generation device according to the present invention provides high power generation because a gas such as used or used air is not sucked again by providing a guide member that communicates with the external space through the structure. Efficiency can be maintained. In addition, the fuel cell power generator can be easily installed in a narrow place where there are walls, doors, and the like.

The perspective view which shows the external appearance of the fuel cell power generator in Embodiment 1 of this invention The perspective view which shows the structure of the main components inside which removed the exterior plate of the fuel cell power generator in Embodiment 1 of this invention. Schematic sketch for explaining a state in which the fuel cell power generation device according to Embodiment 1 of the present invention is installed at the fuel cell device installation site The perspective view which shows the external appearance of the fuel cell power generation device in Embodiment 2 of this invention. The perspective view which shows the external appearance of the fuel cell power generation device in Embodiment 3 of this invention. The perspective view which shows the structure of the main components inside which removed the exterior plate of the fuel cell power generator in Embodiment 3 of this invention. The perspective view which shows the external appearance of the fuel cell power generation device in Embodiment 4 of this invention. The perspective view which shows the external appearance of the fuel cell power generator in Embodiment 5 of this invention. The perspective view which shows the structure of the main components inside which removed the exterior board of the fuel cell power generator in Embodiment 5 of this invention. A perspective view showing a configuration of a conventional fuel cell power generator

The present invention is a fuel generator for generating the fuel gas from a raw material gas, the oxidizing gas supply unit for supplying an oxidant gas, and the FC unit having a stacked cell for generating electric power from said oxidant gas and said fuel gas And a hot water storage unit having a hot water storage tank for storing heat recovered by the FC unit , and an auxiliary heat source unit for heating water in the hot water storage tank , wherein the FC unit and the fuel cell power generator The hot water storage unit is disposed adjacent to a space surrounded by a shield including a front door and a wall on the front, and is disposed between the FC unit and the door, and the gas exhausted from the FC unit is exhausted from the FC unit. An FC outlet guide member that leads to the outside of the door, and a hot water outlet that is disposed between the hot water storage unit and the door and guides the gas exhausted from the hot water storage unit to the outside of the door. And id member, wherein disposed on the exterior surface of the FC unit is a fuel cell power generator and a FC air inlet to supply air to the FC unit.
The present invention also includes a fuel generator that generates fuel gas from a raw material gas, an oxidant gas supply unit that supplies oxidant gas, and a cell stack that generates electric power from the fuel gas and oxidant gas. A fuel cell power generator comprising: an FC unit; and a hot water storage unit having a hot water storage tank for storing heat recovered by the FC unit, and an auxiliary heat source unit for heating water in the hot water storage tank, wherein the FC unit The hot water storage unit is disposed adjacent to a space surrounded by a shield including a front door and a wall on the front, and is disposed between the FC unit and the door, and gas exhausted from the FC unit. Is disposed between the hot water storage unit and the door, and stores the gas exhausted from the hot water storage unit to the outside of the door. An outlet guide member, between the FC unit and the door
It is good also as a fuel cell power generator provided with the FC inlet guide member which is arranged and guides the gas supplied to the FC unit from the outside of the door.
The present invention also includes a fuel generator that generates fuel gas from a raw material gas, an oxidant gas supply unit that supplies oxidant gas, and a cell stack that generates electric power from the fuel gas and oxidant gas. A fuel cell power generator comprising: an FC unit; a hot water storage tank for storing heat recovered by the FC unit; and a hot water storage unit having an auxiliary heat source unit for heating water in the hot water storage tank. And the hot water storage unit is disposed adjacent to a space surrounded by a shield including a front door and a wall, and is disposed between the fuel cell power generation device and the door, and the FC unit and the An all-air outlet guide member that guides the gas exhausted from the hot water storage unit to the outside of the door, and is disposed between the fuel cell power generator and the door, and the FC unit and the A total air inlet guide member for guiding the gas to supply the hot water unit from the outside of the door may be a fuel cell power plant having a.
The present invention also includes a fuel generator that generates fuel gas from a raw material gas, an oxidant gas supply unit that supplies oxidant gas, and a cell stack that generates electric power from the fuel gas and oxidant gas. A fuel cell power generation apparatus comprising: an FC unit; and an auxiliary heat source unit that heats water in a hot water storage tank that stores heat recovered by the FC unit, wherein the FC unit and the auxiliary heat source unit are surrounded by An FC outlet disposed adjacent to a space surrounded by a shield including a front door and a wall, disposed between the FC unit and the door, and guides gas exhausted from the FC unit to the outside of the door. A guide member, an auxiliary heat source unit outlet guide member that is disposed between the auxiliary heat source unit and the door and guides the gas exhausted from the auxiliary heat source unit to the outside of the door; and an exterior of the FC unit Disposed, the FC air inlet to supply air to the FC unit may be a fuel cell power plant having a.
The present invention also includes a fuel generator that generates fuel gas from a raw material gas, an oxidant gas supply unit that supplies oxidant gas, and a cell stack that generates electric power from the fuel gas and oxidant gas. A fuel cell power generation apparatus comprising: an FC unit; and an auxiliary heat source unit that heats water in a hot water storage tank that stores heat recovered by the FC unit, wherein the FC unit and the auxiliary heat source unit are surrounded by An FC outlet disposed adjacent to a space surrounded by a shield including a front door and a wall, disposed between the FC unit and the door, and guides gas exhausted from the FC unit to the outside of the door. A guide member, an auxiliary heat source unit outlet guide member that is disposed between the auxiliary heat source unit and the door, and guides the gas exhausted from the auxiliary heat source unit to the outside of the door; the FC unit; Disposed between the FC inlet guide member for guiding a gas for supply to the FC unit from outside of the door may be a fuel cell power plant having a.
The present invention also includes a fuel generator that generates fuel gas from a raw material gas, an oxidant gas supply unit that supplies oxidant gas, and a cell stack that generates electric power from the fuel gas and oxidant gas. A fuel cell power generation apparatus comprising: an FC unit; and an auxiliary heat source unit that heats water in a hot water storage tank that stores heat recovered by the FC unit, wherein the FC unit and the auxiliary heat source unit are surrounded by Arranged adjacent to a space surrounded by a shield including a front door and a wall, disposed between the fuel cell power generation device and the door, and the gas exhausted from the FC unit and the auxiliary heat source unit An all-air outlet guide member that leads to the outside of the door, and is arranged between the fuel cell power generation device and the door, and guides the gas supplied to the FC unit and the auxiliary heat source unit from the outside of the door. An air inlet guide member may be a fuel cell power plant having a.

  Thereby, since the exhausted air and gas are not sucked again, it is possible to realize a fuel cell power generator that maintains high power generation efficiency and can be installed even if there is a structure between the external space.

Further, in the present invention, the guide member may be a gas exhausted air guide for guiding the exhaust gas or exhaust air of the fuel generator FC unit. This eliminates the inhalation of combustion exhaust gas that adversely affects power generation and supplies external air to prevent a decrease in power generation efficiency and to realize a fuel cell power generator that can be installed in a narrow place.

In the present invention, the guide member may be a hot water storage exhaust gas guide that guides the exhaust gas of the hot water storage unit. Thereby, the air with low oxygen concentration after using with an auxiliary heat source machine can be discharged | emitted to external space. Therefore, even if air in a narrow space is supplied to the auxiliary heat source machine, stable combustion can be maintained.

In the present invention, the guide member may be an exhaust air guide that guides air after being used for power generation in the cell stack of the FC unit. This eliminates the inhalation of low oxygen concentration air into the FC unit after it has been used in the cell stack, thereby preventing a decrease in the voltage of the cell stack and a decrease in conversion due to poor combustion of the fuel generator. As a result, it is possible to realize a fuel cell power generator that can suppress a decrease in power generation efficiency and can be installed even in a small place.

In the present invention, the guide member may be a ventilation guide that guides air for ventilating the inside of the FC unit. Thereby, since external air can be supplied inside the FC unit, it is possible to prevent a decrease in power generation due to temperature unevenness due to inhalation of air with insufficient ventilation.

In the present invention, the guide member may be a combustion air guide that guides air used for combustion of the FC unit. As a result, it is possible to eliminate the suction of low oxygen concentration air after use in the cell stack into the FC unit, and to supply external air to the FC unit. As a result, it is possible to realize a fuel cell power generator that maintains a high conversion rate by stable combustion, prevents a decrease in power generation efficiency, and can be installed even in a narrow place.

In the present invention, the guide member may be an air guide that guides air used for power generation in the cell stack to the FC unit. This eliminates inhalation of combustion exhaust gas that adversely affects power generation, and prevents external power generation efficiency from being reduced by supplying external air.

In the present invention, the guide member may be configured to guide at least two of exhaust gas, air after being used in power generation in the cell stack, and air after the inside of the FC unit is ventilated. Thereby, even if it is a place where it is difficult to mount a plurality of guide members, it is possible to exhaust the exhausted air, the air after being used in the cell stack, or the air that has ventilated the FC unit. As a result, it is possible to prevent a decrease in power generation efficiency and to realize a fuel cell power generation device having a simple structure that is easy to install.

In the present invention, the guide member may be configured to guide at least two of air used for combustion, air used for power generation in the cell stack, and air for ventilating the inside of the FC unit. . Thereby, even if it is a place where it is difficult to mount a plurality of guide members, external air can be supplied. As a result, it is possible to prevent a decrease in power generation efficiency and to realize a fuel cell power generation device having a simple structure that is easy to install.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. Note that the present invention is not limited to the present embodiment.

(Embodiment 1)
Hereinafter, a fuel cell power generator according to Embodiment 1 of the present invention will be described with reference to FIG.

  FIG. 1 is a perspective view showing an appearance of a fuel cell power generator according to Embodiment 1 of the present invention.

  As shown in FIG. 1, the fuel cell power generator includes at least an FC (Fuel Cell) unit 1 and a hot water storage unit 20, and an FP (Fuel Processor) exhaust gas exhaust air guide of the FC unit 1. 15 and a hot water storage exhaust gas guide 22 of the hot water storage unit 20 are connected to, for example, a door 61 constituting a part of the shield. The shield is basically composed of a wall and a door surrounding the fuel cell power generation system as will be described with reference to FIG. 3, but hereinafter, the door will be described as a representative of the shield.

  Here, the FC unit 1 includes a front exterior plate 2 provided on a surface facing the door 61, a left side exterior plate 3 and a right side exterior plate provided on a side surface, and a rear exterior plate provided on a back surface. The interior is surrounded by a ceiling exterior plate 6 provided on the ceiling. At this time, the front exterior plate 2 has an intake port 7 for taking air into the fuel cell power generation device, a ventilation outlet 10 for exhausting air that has ventilated the fuel cell power generation device, and a combustion for reforming reaction. An FP exhaust gas exhaust air guide 15 which is an exhaust gas exhaust air guide is provided as a guide member for guiding the FP exhaust gas subjected to the above and the remaining exhaust air used for power generation.

  Further, the hot water storage unit 20 has a hot water inlet 21 for taking air into the hot water storage unit 20 on a surface facing the door 61 and a guide member for guiding the exhaust gas used for combustion discharged from the hot water exhaust gas outlet 24. As shown, a hot water storage exhaust gas guide 22 is provided.

  Then, the heat generated by the fuel cell power generator is stored in the hot water storage unit 20.

  In addition, the door 61 installed in front of the fuel cell power generation device is provided with a lower slit 62 and an upper slit 63 that cause air to enter and exit between the fuel cell power generation device and the door 61. Further, an FP exhaust gas exhaust air guide outlet 16 connected to the FP exhaust gas exhaust air guide 15 of the FC unit 1 and a hot water storage exhaust gas guide outlet 23 connected to the hot water storage exhaust gas guide 22 of the hot water storage unit 20 are provided.

  The fuel cell power generator according to Embodiment 1 of the present invention will be described below with reference to FIG.

  FIG. 2 is a perspective view showing the configuration of the main components inside the fuel cell power generation apparatus according to Embodiment 1 of the present invention with the exterior plate removed.

  As shown in FIG. 2, an oxidant gas supply unit 31, a fuel generator 32, a cell stack 33, a cooling water tank 34, and a purification unit 36 are provided in the first frame 30 of the fuel cell power generator. The circuit part 37 and the auxiliary machine part 38 are directly or indirectly attached to the first frame 30. Here, the oxidant gas supply unit 31 supplies air or the like, and the fuel generator 32 generates fuel gas containing hydrogen from a source gas such as city gas. The cell stack 33 generates power from oxygen supplied from the oxidant gas supply unit 31 and hydrogen supplied from the fuel generator 32. The cooling water tank 34 collects at least heat generated in the cell stack 33 by the heat exchange unit 40 and stores the cooling water generated thereby. Moreover, the purification | cleaning part 36 removes the impurity in air, water, and source gas. Furthermore, the circuit unit 37 converts the direct current generated in the control of the fuel cell power generator and the cell stack 33 into alternating current. The auxiliary unit 38 is a pump or a valve for operating the FC unit.

  The FC unit includes at least a fuel generator 32, an oxidant gas supply unit 31, a cell stack 33, and a first frame 30 that holds them.

  Further, the FC ventilation outlet 11 shown in FIG. 2 is an exhaust port through which the air inside the FC unit is discharged to the outside by the ventilation fan 41. Further, the FP exhaust gas exhaust air outlet 12 is an exhaust port that collects the exhaust gas after combustion inside the fuel generator 32 and the air exhausted from the cell stack 33 and exhausts it to the outside of the FC unit.

  Then, the heat generated in the FC unit is finally stored as hot water in the hot water storage tank 51, and the hot water stored in the hot water storage tank 51 is mixed and adjusted to an appropriate temperature with, for example, city water by the mixing valve 52. Used by users.

  The hot water storage unit 49 includes at least a hot water storage tank 51 and a mixing valve 52, and is held by the second frame 50 in the present embodiment. The second frame 50 is provided with an auxiliary heat source unit 53 as required. For example, when the temperature of hot water stored in the hot water storage tank 51 is low, the second frame 50 is heated by the auxiliary heat source unit 53 and used as hot water such as hot water supply. Is done. At this time, the auxiliary heat source unit exhaust port 55 is an exhaust port for discharging exhaust gas when the burner in the auxiliary heat source unit 53 burns, and is exhausted in the same direction as the FP exhaust gas exhaust air outlet 12. In this embodiment, exhaust is performed toward the front of the fuel cell power generator, for example, toward the door shown in FIG.

  The outline of the operation of the fuel cell power generator according to the embodiment of the present invention will be described below with reference to FIGS. 1 and 2.

  First, when the fuel cell power generator is operated, the ventilation fan 41 is operated to suck air from the intake port 7 and exhaust air from the ventilation outlet 10.

  Next, a hydrocarbon-based source gas such as methane or propane is introduced from the outside of the fuel cell power generator. In this embodiment, 13A gas which is city gas is used.

  The introduced raw material gas causes a chemical reaction represented by (Chemical Formula 1) as a catalytic reaction with the reforming catalyst of the fuel generator 32. In addition, since this chemical reaction is an endothermic reaction, it is necessary to apply heat during the reaction. At this time, when the chemical reaction shown in (Chemical Formula 1) occurs, hydrogen and carbon dioxide are generated. Further, the generated carbon dioxide generates carbon monoxide by the chemical reaction shown in (Chemical Formula 2).

  Next, the concentration of the generated carbon monoxide is reduced by, for example, a shift catalyst and a shift reaction shown in (Chemical Formula 3). Furthermore, carbon monoxide is finally removed by a selective oxidation catalyst and a carbon monoxide selective oxidation reaction shown in (Chemical Formula 4) until a trace amount of, for example, about 20 ppm or less.

  Next, the fuel gas containing hydrogen, carbon dioxide and water vapor, and a small amount of carbon monoxide generated from the raw material gas by the chemical reaction of the fuel generator 32 is sent to the cell stack 33. The air supplied from the oxidant gas supply unit 31 such as an air blower or a compressor is sent to the air purification part of the purification unit 36 and also sent to the cell stack 33. In this embodiment, the example in which air is sent from the oxidant gas supply unit 31 to the purification unit 36 has been described. However, the present invention is not limited to this, and the air passing through the purification unit 36 is transferred from the oxidant gas supply unit 31 to the cell stack 33. You may guide.

  As a result, the cell stack 33 generates water by the chemical reaction shown in (Chemical Formula 5) with the oxygen and hydrogen in the air that has been sent, and generates heat and electricity.

  The electricity generated in the cell stack 33 is converted from direct current to alternating current by the circuit unit 37, and is used as electric power for an external device or the like outside the fuel cell power generator. The heat generated in the cell stack 33 is carried from the cell stack 33 when the cooling water held in the cooling water tank 34 flows through the cell stack 33. And the cooling water which carries heat returns to the cooling water tank 34 again, and circulates. At this time, the circulating cooling water is heat-exchanged with the water connected to the hot water storage tank 51 by the heat exchanging unit 40 arranged in the path, so that the temperature of the cooling water is kept almost constant.

  Further, the fuel gas that has not been consumed in the cell stack 33 is supplied to the burner of the fuel generator 32 as off-gas and burned. The heat generated by the combustion is effectively used in the fuel generator 32 as the heat required for the endothermic reaction of (Chemical Formula 1).

  In the present embodiment, out of the heat generated in the FC unit, in addition to the heat generated in the cell stack 33, the FP exhaust gas generated in the burner of the fuel generator 32 and the air exhausted and not used in the cell stack 33 This heat is also recovered by the heat exchange unit and used to raise the temperature of the cooling water. Further, in this embodiment, auxiliary machines such as a pump for operating the FC unit and a heat exchanging unit are accommodated in the auxiliary machine unit 38, but this is related to the fuel generator 32, the cell stack 33, etc. constituting the FC unit. Each auxiliary machine may be arranged separately and distributed throughout.

  Further, the cooling water heated by the heat generated in the FC unit and the water whose temperature has been increased by heat exchange in the heat exchanging unit 40 are stored in the hot water storage tank 51.

And although not shown in figure, water is taken out from the bottom part of the hot water storage tank 51, passes through the piping part of the hot water storage side connection part, water flows into the FC side connection part via the FC hot water storage connection member, and the heat exchange part 40
Led to. Further, the water whose temperature has risen in the heat exchanging unit 40 flows from the FC-side connection portion into the hot-water storage-side connection portion via the FC hot-water storage connection member, and then returns from the upper portion of the hot-water storage tank 51. That is, the water in the hot water storage tank 51 is taken out from the bottom and heated, and then returns to the top again. Therefore, the water temperature in the hot water storage tank 51 is low at the bottom, but the top is high. Available as

  In this embodiment, the amount of circulating water is adjusted so that hot water of 60 ° C. or higher is accumulated in the upper part of the hot water storage tank 51, but is arbitrarily adjusted if it is 40 ° C. or higher and lower than 100 ° C. be able to. Therefore, when the hot water of the fuel cell power generator is used at home or the like, high temperature water (that is, hot water) flows into the mixing valve 52 from the upper part of the hot water storage tank 51. At this time, the mixing valve 52 mixes hot water from the hot water storage tank 51 with water such as a water pipe connected externally so that the temperature of the water requested by the user is reached, and the temperature requested by the user. Adjust to. This makes it possible to use water at the temperature requested by the user such as a bath or kitchen.

  However, at the start of the operation of the fuel cell power generation device or when a demand exceeding the amount of hot water stored in the hot water storage tank 51 occurs, the temperature required by the user is required even for the water above the hot water storage tank 51. You may not be able to supply hot water. In that case, after mixing external water with the mixing valve 52, it heats with the auxiliary | assistant heat-source unit 53, and uses it by making it the temperature which a user requests | requires.

  In the present embodiment, the FC unit and the hot water storage unit are connected and transported with water, etc., and the electrical signal is transferred using the FC hot water storage connection member. However, the present invention is not limited to this. For example, the flow of water from the FC unit to the hot water storage unit, the flow of water from the hot water storage unit to the FC unit, and the flow of electricity and signals between the FC unit and the hot water storage unit may be performed by separate components.

  The operation and effect of the FP exhaust gas exhaust air guide 15 and the hot water storage exhaust gas guide 22 which are guide members for connecting the fuel cell power generation apparatus and the door, which are the points of the present embodiment, will be described below.

  Therefore, first, a phenomenon that occurs when the fuel cell power generator does not include the FP exhaust gas exhaust air guide 15 and the hot water storage exhaust gas guide 22 will be described.

  Generally, in a fuel cell power generator installed in an outdoor environment, for example, various gases and trace substances exist in the FC unit.

  In other words, since raw material gas such as city gas, fuel gas produced by a fuel generator, or air is used in power generation in the cell stack 33, oxygen in the air is consumed for power generation, and thus is discharged from the cell stack 33. The oxygen concentration in the exhaust air is very low.

  Further, for use in the reforming reaction, the fuel gas discharged from the cell stack 33 is burned by the burner of the fuel generator 32 to supply heat. At that time, the combustion exhaust gas after combustion contains trace components such as nitrogen oxide and sulfur oxide in addition to moisture and carbon dioxide. And when these trace components are mixed in the air supplied to the cell stack 33, the electrochemical reaction which produces electric power generation in the cell stack 33 will be inhibited, and electric power generation efficiency will be reduced.

  Moreover, when combustion exhaust gas mixes in the air which ventilates the inside of the fuel cell power generator, moisture moves to the heat insulating material used for the fuel generator 32 and the like, and the heat insulating performance is lowered. As a result, in order to maintain a predetermined temperature, useless energy is required, and the efficiency of power generation and heat recovery is reduced.

  Further, since the exhaust air after being used for the power generation of the cell stack 33 has a low oxygen concentration, if it is mixed in the combustion air of the fuel generator 32, combustion cannot be maintained due to lack of oxygen or incomplete combustion occurs. There is a case. As a result, the production of fuel gas from the source gas is hindered, and power generation efficiency and heat recovery efficiency are reduced.

  Also, if exhaust air enters the ventilation air, the oxygen concentration in the FC unit will be low, causing sensor malfunctions and reducing power generation efficiency and heat recovery efficiency by interrupting power generation. End up.

  The operation and effect of the FP exhaust gas exhaust air guide 15 and the hot water storage exhaust gas guide 22 provided as guide members will be described with reference to FIG.

  FIG. 3 is a schematic sketch for explaining a state in which the fuel cell power generation device according to the embodiment of the present invention is installed at the fuel cell device installation site. FIG. 3 shows the fuel cell power generation device viewed from the top when installed in the fuel cell device installation site.

  As shown in FIG. 3, the front surface of the fuel cell power generator includes a door 61, and both side surfaces and the back surface are surrounded by a wall 65. At this time, the air in the fuel cell power plant installation site 60 is ventilated by the lower slit 62 and the upper slit 63 provided in the door 61 shown in FIG. In addition, the fuel cell power generator is supplied with a raw material gas from a raw material gas pipe 66, and is supplied and discharged from a water supply / drainage 67. Further, the air that ventilates the FC unit is sucked from the fuel cell power generation device installation site 60 around the lower part of the fuel cell power generation device and discharged to the upper part.

  Then, the air used in the cell stack 33 for power generation is sucked from the fuel cell power generator installation site 60 around the lower part of the fuel cell power generator, and is discharged by the FP exhaust gas exhaust air guide 15 by the FP exhaust gas exhaust air guide outlet. 16 is discharged to the outside. Further, air used for combustion of the fuel generator 32 is also sucked from the fuel cell power generator installation site 60 around the lower part of the fuel cell power generator, and is discharged from the FP exhaust gas exhaust air guide outlet 16 by the FP exhaust gas exhaust air guide 15. It is discharged outside.

  That is, when there is no FP exhaust gas exhaust air guide 15, the combustion exhaust gas and exhaust air are exhausted into a narrow space surrounded by the wall 65 and the door 61 in the fuel cell power plant installation site 60. Therefore, exhausted exhaust gas and exhaust air may be sucked again as ventilation air, power generation air of the cell stack 33, or combustion air of the fuel generator 32.

  However, according to the present embodiment, even if the fuel cell power generation device is arranged in a narrow space where there is a structure or the like around it, the FP exhaust gas exhaust air guide 15 ensures the exhaust air and exhaust gas to the outside space. Can be discharged. As a result, it is possible to realize a fuel cell power generator that can prevent combustion exhaust gas and exhaust air from being sucked into the FC unit again and maintain high power generation efficiency and heat recovery efficiency.

(Embodiment 2)
Hereinafter, a fuel cell power generator according to Embodiment 2 of the present invention will be described with reference to FIG.

  FIG. 4 is a perspective view showing an external appearance of the fuel cell power generator according to Embodiment 2 of the present invention.

  The fuel cell power generator according to the present embodiment is provided with an FC ventilation outlet guide 68 that is a ventilation guide as a guide member at the FC ventilation outlet of the FC unit 1 between the FC unit 1 and the door 61. This is different from the first embodiment. Since other configurations and operations are the same as those of the first embodiment, description thereof is omitted.

  That is, as shown in FIG. 4, the fuel cell power generation device includes at least an FC (Fuel Cell) unit 1 and a hot water storage unit 20, and an FP (reformer: Fuel Processor) exhaust gas exhaust gas of the FC unit 1. The air guide 15 and the FC ventilation outlet guide 68 are connected to the door 61 through the hot water storage exhaust gas guide 22 of the hot water storage unit 20.

  In addition, the door 61 installed in front of the fuel cell power generation device is provided with a lower slit 62 and an upper slit 63 that cause air to enter and exit between the fuel cell power generation device and the door 61. Further, the FP exhaust gas exhaust air guide outlet 16 connected to the FP exhaust gas exhaust air guide 15 of the FC unit 1 and the FC ventilation outlet guide outlet 69 connected to the FC ventilation outlet guide 68 and the hot water storage exhaust gas guide 22 of the hot water storage unit 20 are provided. A hot water storage exhaust gas guide outlet 23 to be connected is provided.

  The operation and effect of the FC ventilation outlet guide 68 that connects the fuel cell power generation device and the door, which are the points of the present embodiment, will be described below.

  In general, the air that ventilates the FC unit contains trace components such as oil generated from equipment used in the FC unit, and raw material gas and fuel gas leaking from a joint. In a narrow space where there are shielding objects such as structures (eg doors) around the fuel cell power generator, there is little air flow (ventilation), so there are trace components such as oil in the fuel cell power generator installation site. The raw material gas and fuel gas leaking from the joints etc. are retained.

  That is, in the absence of the FC ventilation outlet guide 68, trace components, raw material gas and fuel gas are discharged into a narrow space surrounded by the fuel cell power generation device and the door 61 and the like, and from the FC intake port 7 and the hot water storage intake port 21, May be inhaled again. And when these trace components, source gas, and fuel gas mix in the air supplied to the cell stack 33, the electrochemical reaction which produces electric power generation in the cell stack 33 will be inhibited, and electric power generation efficiency will be reduced.

  However, according to the present embodiment, trace components, source gas, and fuel gas can be released to the external space through the FC ventilation outlet guide outlet 69 of the door 61 connected to the FC ventilation outlet guide 68. . Thereby, the air which ventilated FC unit does not stay in a fuel cell storage place. Then, it is not taken in as combustion air in the fuel generator 32, power generation air in the cell stack 33, or ventilation air in the FC unit. As a result, it is possible to realize a fuel cell power generator capable of preventing the adverse effect on the power generation of the cell stack 33 even when installed in a narrow place and maintaining high power generation efficiency and heat recovery efficiency.

(Embodiment 3)
Hereinafter, a fuel cell power generator according to Embodiment 3 of the present invention will be described with reference to FIGS.

  FIG. 5 is a perspective view showing an external appearance of the fuel cell power generator according to Embodiment 3 of the present invention. FIG. 6 is a perspective view showing the configuration of the main components inside the exterior plate of the fuel cell power generator according to Embodiment 3 of the present invention.

  In the fuel cell power generator according to the present embodiment, an FP combustion air inlet guide 71 that is a combustion air guide is provided as a guide member at the FP combustion air inlet 70 of the FC unit 1 between the FC unit 1 and the door 61. This is different from the first embodiment. Since other configurations and operations are the same as those in the first embodiment, description thereof is omitted. In the first embodiment, the FP combustion air inlet is not shown because it is provided inside the FC unit 1 (region surrounded by the exterior plate).

  That is, as shown in FIGS. 5 and 6, the fuel cell power generation device includes at least an FC (Fuel Cell) unit 1 and a hot water storage unit 20, and an FP (reformer: Fuel Processor) of the FC unit 1. The exhaust gas exhaust air guide 15, the FP combustion air inlet guide 71, and the hot water storage exhaust gas guide 22 of the hot water storage unit 20 are connected to the door 61.

  In addition, the door 61 installed in front of the fuel cell power generation device is provided with a lower slit 62 and an upper slit 63 that cause air to enter and exit between the fuel cell power generation device and the door 61. Further, the FP exhaust gas exhaust air guide outlet 16 connected to the FP exhaust gas exhaust air guide 15 of the FC unit 1, the FP combustion air inlet guide inlet 72 connected to the FP combustion air inlet guide 71, and the hot water storage exhaust gas guide of the hot water storage unit 20. A hot water storage exhaust gas guide outlet 23 connected to 22 is provided.

  The operation and effect of the FP combustion air inlet guide 71 that connects the fuel cell power generation device and the door, which are the points of the present embodiment, will be described below.

  Generally, in a narrow space where there are shielding objects such as structures (for example, doors and walls) around the fuel cell power generator, there is less air flow (ventilation). As a result, the raw material gas and fuel gas leaking from the trace components, the joints, etc. are retained.

  At this time, if there is no FP combustion air inlet guide 71, the remaining trace components, raw material gas and fuel gas are sucked again from the FP combustion air inlet of the FC unit 1 as air used in the combustion of the fuel generator 32. Sometimes. And if these trace components, raw material gas, and fuel gas mix in the air supplied to the fuel generator 32, the production efficiency of the fuel gas of the fuel generator 32 will be reduced.

  However, according to the present embodiment, the air used in the combustion of the fuel generator 32 is shown in FIG. 6 through the FP combustion air inlet guide inlet 72 and the FP combustion air inlet guide 71 from the outside space. The FP combustion air inlet 70 can be taken into the FC unit. As a result, in a narrow space where there are shielding objects such as structures (for example, doors and walls) around the fuel cell power generator, air containing trace components and gas components other than normal oxygen and nitrogen is supplied to the fuel cell power generator. Even if it stays at the installation site 60, it is not necessary to use them. Therefore, stable combustion can be maintained without affecting the combustion in the fuel generator 32. In addition, since the oxygen component in the air does not fluctuate, the fuel generator does not consume extra raw material gas or fuel gas, so that the efficiency of the fuel generator can be increased. As a result, it is possible to realize a fuel cell power generation apparatus that can prevent the adverse effects on the power generation of the cell stack 33 and the fuel generator even when installed in a narrow place, and maintain high power generation efficiency and heat recovery efficiency.

  In the above description, the combustion air guide that guides air to the fuel generator has been described as an example. Similarly, an air guide that guides air of the cell stack may be provided. Thereby, air with a stable oxygen concentration can be supplied to the cell stack. As a result, the power generation efficiency of the cell stack can be stably maintained.

(Embodiment 4)
Hereinafter, a fuel cell power generator according to Embodiment 4 of the present invention will be described with reference to FIG.

  FIG. 7 is a perspective view showing an external appearance of the fuel cell power generation device according to Embodiment 4 of the present invention.

The fuel cell power generator according to the present embodiment includes an FC air total inlet guide 74 in which the FC intake port of the FC unit 1 and the FP combustion air inlet are combined between the FC unit 1 and the door 61, and an FC
The FC air total outlet guide 77 that combines the exhaust outlet and the FP exhaust gas exhaust air outlet differs from the first embodiment in that it is provided as a guide member. Since other configurations and operations are the same as those of the first embodiment, description thereof is omitted.

  That is, as shown in FIG. 7, the fuel cell power generator includes at least an FC (Fuel Cell) unit 1 and a hot water storage unit 20, and the FC air total inlet guide 74 and the FC air total outlet of the FC unit 1. The guide 77 and the hot water storage exhaust gas guide 22 of the hot water storage unit 20 are connected to the door 61.

  In addition, the door 61 installed in front of the fuel cell power generation device is provided with a lower slit 62 and an upper slit 63 that cause air to enter and exit between the fuel cell power generation device and the door 61. Further, the FC air total inlet guide inlet 75 connected to the FC air total inlet guide 74 of the FC unit 1 and the FC air total outlet guide outlet 78 connected to the FC air total outlet guide 77, and the hot water storage exhaust gas guide of the hot water storage unit 20. A hot water storage exhaust gas guide outlet 23 connected to 22 is provided.

  The operation and effect of the FC air total inlet guide inlet 75 and the FC air total outlet guide 77 that connect the fuel cell power generation apparatus and the door, which are the points of the present embodiment, will be described below.

  First, all the air used in the FC unit is sucked from the external FC space from the FC air total inlet guide inlet 75 and supplied from the FC air total inlet 73 to the FC unit via the FC air total inlet guide 74.

  In the FC unit, the air is distributed and supplied to the air used for combustion of the fuel generator 32, the air used for power generation in the cell stack 33, and the air used for ventilation of the FC unit.

  Thereafter, the air after being used for combustion of the fuel generator 32, the air after being used for power generation in the cell stack 33, and the air after being used for ventilation of the FC unit are collected, and the FC air total outlet is collected. 76, the FC air total outlet guide outlet 78 is discharged to the outside through the FC air total outlet guide 77.

  Thereby, the air inside the fuel cell power generator installation site, which is a narrow space surrounded by a shield such as a structure (for example, a door or a wall) around the fuel cell power generator, is not used at all. For this reason, even if air containing components that adversely affect power generation or combustion, such as trace substances, is present in the fuel cell power generation apparatus installation site 60, such air is not used. Has no effect.

  In addition, the fuel cell power generation apparatus can be installed by consolidating the inlet for taking air from the external space into each part of the fuel cell power generation apparatus and the outlet for discharging into one FC air total inlet 73 and one FC air total outlet guide 77. Construction can be simplified.

  In other words, according to the present embodiment, a fuel cell power generator that can be easily installed in a narrow place and that can prevent the power generation of the cell stack and the fuel generator from being adversely affected and maintain high power generation efficiency and heat recovery efficiency. realizable.

(Embodiment 5)
Hereinafter, a fuel cell power generator according to Embodiment 5 of the present invention will be described with reference to FIGS.

  FIG. 8 is a perspective view showing an external appearance of the fuel cell power generation device according to Embodiment 5 of the present invention. FIG. 9 is a perspective view showing the configuration of the main components inside the exterior plate of the fuel cell power generator according to Embodiment 5 of the present invention.

  The fuel cell power generator according to the present embodiment includes an all air inlet guide 80 in which the FC air total inlet guide and the hot water storage inlet are combined, the FC air total outlet guide, and the hot water storage exhaust gas between the FC unit 1 and the door 61. The difference from the fourth embodiment is that an all-air outlet guide 83 in which guides are combined is provided as a guide member. Since other configurations and operations are the same as those in the fourth embodiment, description thereof is omitted.

  That is, as shown in FIGS. 8 and 9, the fuel cell power generator includes at least an FC (Fuel Cell) unit 1 and a hot water storage unit 20, and includes an all air inlet guide 80 and an all air outlet guide 83. It is connected to the door 61 via

  In addition, the door 61 installed in front of the fuel cell power generation device is provided with a lower slit 62 and an upper slit 63 that cause air to enter and exit between the fuel cell power generation device and the door 61. Further, an all-air inlet guide inlet 81 connected to the all-air inlet guide 80 of the fuel cell power generator and an all-air outlet guide outlet 84 connected to the all-air outlet guide 83 are provided.

  The operation and effect of the all-air inlet guide 80 and the all-air outlet guide 83 that connect the fuel cell power generation device and the door, which are the points of the present embodiment, will be described below. Here, the total air is the air used in the fuel cell power generator, and specifically, the total air used in the FC unit and the air used in the auxiliary heat source unit 53 are combined.

  First, air used in the fuel cell power generator is sucked from the all-air inlet guide inlet 81 from the external space, and is supplied from the all-air inlet 79 to the hot water storage unit 20 and the FC unit 1 via the all-air inlet guide 80. .

  The air used in the auxiliary heat source unit 53 of the hot water storage unit 20, the air used for combustion of the fuel generator 32 inside the FC unit, the air used for power generation in the cell stack 33, and the air used for ventilation of the FC unit. Are distributed and supplied.

  Thereafter, air used for combustion of the fuel generator 32, air used for power generation in the cell stack 33, air used for ventilation of the FC unit, and combustion in the auxiliary heat source unit 53 Then, the air is discharged from the all air outlet 82 through the all air outlet guide 83 to the external space from the all air outlet guide outlet 84 of the door 61.

  In addition, the air used for combustion of the auxiliary heat source unit 53 of the hot water storage unit 20 has a low oxygen concentration, contains water vapor, and often contains impurities such as nitrogen oxides. Therefore, when this air is taken into the FC unit and flows into the combustion air in the fuel generator 32, incomplete combustion or a state where combustion cannot be maintained occurs, and excess energy or power generation stops. As a result, power generation efficiency decreases.

  Moreover, when taken in as air for power generation in the cell stack 33, the power generation efficiency decreases due to the low oxygen concentration and the inhibition of power generation reaction by impurities. Further, when used for the ventilation air of the FC unit 29, moisture is given to the heat insulating material of the fuel generator 32, so that the heat insulating performance is lowered, and the power generation efficiency is lowered due to the consumption of excess energy.

However, according to the present embodiment, not only the air used in the FC unit but also the air used in the auxiliary heat source unit 53 is not sucked into the FC unit, so that fuel cell power generation that can maintain high power generation efficiency A device can be realized.

  In addition, the air inside the fuel cell power plant installation site, which is a narrow space surrounded by a shield such as a structure (for example, a door or a wall) around the fuel cell power plant, is not used at all. For this reason, even if air containing components that adversely affect power generation or combustion, such as trace substances, is present in the fuel cell power generation apparatus installation site 60, such air is not used. Will not be affected at all. As a result, a fuel cell device having excellent reliability and stability can be realized.

  Also, the installation work for the fuel cell power generator is performed by consolidating the inlet for taking air from the external space into each part of the fuel cell power generator and the outlet for discharging it into one all air inlet guide 80 and one all air outlet guide 83. Etc. can be simplified.

  In the present embodiment, the all air inlet guide 80 and the all air outlet guide 83 are configured so that the air used in the auxiliary heat source unit 53 or the air after use, the air used in the FC unit, or the air after use. The configuration in which the passing portion is independent has been described as an example, but the configuration is not limited thereto. For example, a wall that separates the inside of one pipe may be provided, or a plurality of pipes may be bundled together. Moreover, it is good also as a structure which isolate | separates the path | route through which the air used after the fuel generator 32, the cell stack 33, and FC unit flows, or the air flow after using inside FC unit. As a result, even if the amount of air used in ventilation of the auxiliary heat source unit 53, the fuel generator 32, the cell stack 33, and the FC unit changes, each of them does not affect the other, so that high power generation efficiency is maintained. it can.

  Since the fuel cell power generation device according to the present invention can be configured not to use air containing components that affect power generation and combustion, the fuel cell power generation device is installed in a small place for business use in addition to a general single-family house or apartment house. Useful when installing.

DESCRIPTION OF SYMBOLS 1 FC unit 2 Front exterior board 3 Left side exterior board 6 Ceiling exterior board 7 Intake port 10 Ventilation outlet 11 FC ventilation outlet 12 FP exhaust gas exhaust air outlet 15 FP exhaust gas exhaust air guide (exhaust gas exhaust air guide)
16 FP exhaust gas exhaust air guide outlet 20 Hot water storage unit 21 Hot water storage air inlet 22 Hot water storage exhaust gas guide 23 Hot water storage exhaust gas guide outlet 24 Hot water storage exhaust gas outlet 30 First frame 31 Oxidant gas supply unit 32 Fuel generator 33 Cell stack 34 Cooling water tank 36 Purification Section 37 Circuit section 38 Auxiliary machine section 40 Heat exchange section 41 Ventilation fan 49 Hot water storage unit 50 Second frame 51 Hot water storage tank 52 Mixing valve 53 Auxiliary heat source machine 55 Auxiliary heat source machine exhaust port 60 Fuel cell power generator installation place 61 Door 62 Lower slit 63 Upper slit 65 Wall 66 Source gas piping 67 Water supply / drainage pipe 68 FC ventilation outlet guide 69 FC ventilation outlet guide outlet 70 FP combustion air inlet 71 FP combustion air inlet guide 72 FP combustion air inlet guide inlet 73 FC air total inlet 74 FC air total Entrance guide 75 FC air total inlet guide inlet 76 FC air total outlet 77 FC air total outlet guide 78 FC air total outlet guide outlet 79 All air inlet 80 All air inlet guide 81 All air inlet guide inlet 82 All air outlet 83 All air outlet guide 84 All Air outlet guide outlet

Claims (6)

Fuel generator for generating the fuel gas from a raw material gas, and FC unit having oxidant gas supply unit supplying oxidant gas, and the stack, the cell for generating electric power from said fuel gas and the oxidant gas,
A hot water storage unit having a hot water storage tank for storing heat recovered by the FC unit , and an auxiliary heat source device for heating water of the hot water storage tank ;
A fuel cell power generator comprising:
The FC unit and the hot water storage unit are arranged adjacent to each other in a space surrounded by a shield including a front door and a wall.
An FC outlet guide member that is disposed between the FC unit and the door and guides the gas exhausted from the FC unit to the outside of the door;
A hot water storage outlet guide member that is disposed between the hot water storage unit and the door and guides the gas exhausted from the hot water storage unit to the outside of the door;
A fuel cell power generator comprising: an FC air supply port that is arranged on an exterior surface of the FC unit and supplies air to the FC unit.   An FC unit having a fuel generator that generates fuel gas from a raw material gas, an oxidant gas supply unit that supplies oxidant gas, and a cell stack that generates electric power from the fuel gas and the oxidant gas;
  A hot water storage unit having a hot water storage tank for storing heat recovered by the FC unit, and an auxiliary heat source device for heating water of the hot water storage tank;
A fuel cell power generator comprising:
    The FC unit and the hot water storage unit are arranged adjacent to each other in a space surrounded by a shield including a front door and a wall.
    An FC outlet guide member that is disposed between the FC unit and the door and guides the gas exhausted from the FC unit to the outside of the door;
    A hot water storage outlet guide member that is disposed between the hot water storage unit and the door and guides the gas exhausted from the hot water storage unit to the outside of the door;
    An FC inlet guide member that is disposed between the FC unit and the door and guides the gas supplied to the FC unit from the outside of the door;
A fuel cell power generator comprising:   An FC unit having a fuel generator that generates fuel gas from a raw material gas, an oxidant gas supply unit that supplies oxidant gas, and a cell stack that generates electric power from the fuel gas and the oxidant gas;
  A hot water storage unit having a hot water storage tank for storing heat recovered by the FC unit, and an auxiliary heat source device for heating water of the hot water storage tank;
A fuel cell power generator comprising:
    The FC unit and the hot water storage unit are arranged adjacent to each other in a space surrounded by a shield including a front door and a wall.
    An all-air outlet guide member that is disposed between the fuel cell power generator and the door and guides the gas exhausted from the FC unit and the hot water storage unit to the outside of the door;
    An all-air inlet guide member that is disposed between the fuel cell power generation device and the door and guides the gas supplied to the FC unit and the hot water storage unit from the outside of the door;
A fuel cell power generator comprising: Fuel generator for generating the fuel gas from a raw material gas, and FC unit having oxidant gas supply unit supplying oxidant gas, and the stack, the cell for generating electric power from said fuel gas and the oxidant gas,
An auxiliary heat source device for heating water in a hot water storage tank that stores heat recovered by the FC unit, and a fuel cell power generation device comprising:
The FC unit and the auxiliary heat source machine are arranged adjacent to a space surrounded by a shield including a front door and a wall,
An FC outlet guide member that is disposed between the FC unit and the door and guides the gas exhausted from the FC unit to the outside of the door;
An auxiliary heat source unit outlet guide member that is disposed between the auxiliary heat source unit and the door and guides the gas exhausted from the auxiliary heat source unit to the outside of the door;
A fuel cell power generator comprising: an FC air supply port that is arranged on an exterior surface of the FC unit and supplies air to the FC unit.   An FC unit having a fuel generator that generates fuel gas from a raw material gas, an oxidant gas supply unit that supplies oxidant gas, and a cell stack that generates electric power from the fuel gas and the oxidant gas;
  An auxiliary heat source device for heating water in a hot water storage tank that stores heat recovered by the FC unit, and a fuel cell power generation device comprising:
    The FC unit and the auxiliary heat source machine are arranged adjacent to a space surrounded by a shield including a front door and a wall,
    An FC outlet guide member that is disposed between the FC unit and the door and guides the gas exhausted from the FC unit to the outside of the door;
    An auxiliary heat source unit outlet guide member that is disposed between the auxiliary heat source unit and the door and guides the gas exhausted from the auxiliary heat source unit to the outside of the door;
    An FC inlet guide member that is disposed between the FC unit and the door and guides the gas supplied to the FC unit from the outside of the door;
A fuel cell power generator comprising:   An FC unit having a fuel generator that generates fuel gas from a raw material gas, an oxidant gas supply unit that supplies oxidant gas, and a cell stack that generates electric power from the fuel gas and the oxidant gas;
  An auxiliary heat source device for heating water in a hot water storage tank that stores heat recovered by the FC unit, and a fuel cell power generation device comprising:
    The FC unit and the auxiliary heat source machine are arranged adjacent to a space surrounded by a shield including a front door and a wall,
    An all-air outlet guide member that is disposed between the fuel cell power generation device and the door and guides the gas exhausted from the FC unit and the auxiliary heat source unit to the outside of the door;
    An all-air inlet guide member that is disposed between the fuel cell power generation device and the door and guides the gas supplied to the FC unit and the auxiliary heat source unit from the outside of the door;
A fuel cell power generator comprising:

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