JP6654684B2 - Bathroom pure water utilization equipment - Google Patents

Description

  TECHNICAL FIELD The present invention relates to a bathroom pure water utilization device for utilizing pure water.

  In a fuel cell such as a solid oxide fuel cell, it is known that power is generated by a fuel cell reaction by oxidation on a fuel electrode side and reduction on an oxygen electrode side, and water is discharged by the power generation. Water generated by the fuel cell reaction is pure water, and pure water can be easily obtained by operating the fuel cell.

  As one method of using this water (pure water), it has been proposed to use it as reforming water (for example, see Patent Document 1). This fuel cell system comprises a reformer for steam reforming a raw fuel gas, and a fuel cell for generating electricity by oxidizing and reducing a reformed fuel gas and an oxidant (air) reformed by the reformer. And a condensing and collecting means for condensing and collecting water vapor contained in exhaust gas discharged from the fuel cell, and a water supply for sending condensed and collected condensed water (pure water) to the reformer. Means. In this fuel cell system, the condensing and recovering means includes a water collecting tank for collecting and storing condensed water, and the water collecting tank and the reformer are connected via a water supply flow path. A water feed pump is provided in the flow path.

  In this fuel cell system, the water vapor contained in the exhaust gas from the fuel cell is recovered by the condensation and recovery means, and the recovered condensed water (pure water) is stored in a water recovery tank. The recovered water (pure water) in the water recovery tank is supplied to the reformer through a water supply channel by the action of a water supply pump, and the reformer uses the steam of fuel gas as reforming water. Used for reforming.

JP 2013-243146 A

  In such a fuel cell system (for example, one having a rated output of about 1 kW), for example, when operated at the rated output for 24 hours, several liters of water (pure water) can be condensed and recovered. As described above, simply using as reforming water wastefully drains much recovered water (pure water).

  In general, pure water is known to have excellent penetrating power, decomposition power, and the like.Pure water having such properties can be used for removing oil stains and suppressing mold generation, and the like. Accordingly, new utilization of water (pure water) generated by a fuel cell system or the like, for example, utilization for suppressing mold generation in a bathroom is desired.

  An object of the present invention is to provide a bathroom pure water utilization device that can effectively utilize pure water for suppressing mold generation in a bathroom.

The apparatus for utilizing pure water for bathroom according to claim 1 of the present invention is a method for condensing water vapor contained in exhaust gas by heat exchange between exhaust gas from a fuel cell in a fuel cell system and water from a hot water storage tank of a hot water storage device. A pure water storage container for recovery as a shower for using hot water from a hot water storage device, a hot water supply flow path connecting the hot water storage device and the shower, the pure water storage container and the hot water supply flow passage, And a pure water pump disposed in the pure water supply flow path, and the pure water in the pure water container is reduced by the action of the pure water pump. Water is discharged from the shower through a pure water supply passage and the hot water supply passage.

Further, the apparatus for utilizing pure water for bathroom according to claim 2 of the present invention is capable of removing water vapor contained in exhaust gas by heat exchange between the exhaust gas from the fuel cell in the fuel cell system and the water from the hot water storage tank of the hot water storage device. A pure water storage container for collecting as condensed water , mist generating means for generating mist to have a mist effect in the bathroom, and a mist water supply flow for supplying water or hot water to the mist generating means A channel or a hot water supply flow path for mist, a pure water supply flow path connecting the pure water storage container and the mist water supply flow path or the mist hot water supply flow path, and a pure water supply path. A pure water pump disposed in the flow path, and the pure water in the pure water storage container is turned into the pure water supply flow path and the mist water supply flow path or the pure water in the pure water storage container by the action of the pure water pump. Of the mist generating means through the hot water supply flow path for mist Characterized in that it is ejected from the strike jetting nozzle.

ADVANTAGE OF THE INVENTION According to the pure water utilization apparatus for bathrooms of Claim 1 of this invention, it is provided with the pure water storage container for containing pure water, and the shower for using warm water from a hot water storage apparatus, and contains pure water. The container is connected to a hot water supply channel connected to a shower via a pure water supply channel, and a pure water pump is provided in the pure water supply channel. The pure water inside is supplied to the shower through the pure water supply flow path and the hot water supply flow path, and the bathroom and the bathtub can be cleaned (suppression of mold generation, etc.) using the pure water discharged from the shower.
The pure water container is a pure water recovery container for condensing and recovering water vapor contained in the exhaust gas from the fuel cell, and the pure water collected in the pure water recovery container is used to generate the exhaust gas. Pure water obtained from can be effectively used for washing the bathroom via a shower.

According to the apparatus for utilizing pure water for bathroom according to claim 2 of the present invention, a pure water storage container for storing pure water, and a mist for generating mist and having a mist effect in the bathroom are provided. A pure water container connected to a mist water supply flow path (or a mist hot water supply flow path) connected to the mist generation means via the pure water supply flow path. Since the pure water pump is provided in the flow path, the pure water in the pure water container is supplied by the pure water pump to the pure water supply flow path and the mist water supply flow path (or the mist hot water supply flow path). The inside of the bathroom is filled with mist-like pure water by the pure water jetted from the mist generating means of the mist generating means through the mist generating means through the mist generating means, and the entire bathroom is washed (control of mold generation, etc.). It can be performed.
Further, the pure water container is a pure water recovery container for condensing and recovering water vapor contained in exhaust gas from the fuel cell, and the pure water collected in the pure water recovery container is used to generate exhaust gas. The pure water obtained from can be effectively used for cleaning the bathroom via the mist generating means.

FIG. 1 is a simplified diagram schematically showing a reference embodiment of a pure water utilization device using a fuel cell system. Sectional drawing which shows the pure water collection | recovery means of the pure water utilization apparatus of FIG. 1, and the structure relevant to it in partial cross section. FIG. 2 is a block diagram schematically showing a control system of the pure water utilization device of FIG. 1. FIG. 1 is a simplified diagram schematically showing an embodiment of a bathroom pure water utilization device according to the present invention. The front view which shows the operation remote control for controlling the bathroom pure water utilization apparatus of FIG.

  Hereinafter, a reference embodiment of a pure water utilization device using a fuel cell system and an embodiment of a bathroom pure water utilization device according to the present invention will be described with reference to the accompanying drawings.

[Reference embodiment of pure water utilization device]
First, a reference embodiment of a pure water utilization device using a fuel cell system will be described with reference to FIGS. Referring to FIG. 1, an example of a fuel cell system used in this pure water utilization device will be described. The illustrated fuel cell system 2 includes a reformer 4 for reforming raw fuel gas (for example, natural gas). And a fuel cell 6 that generates electricity by oxidizing and reducing the reformed fuel gas reformed by the reformer 4 and air as an oxidant, and air (including oxygen) as an oxidant to the fuel cell 6. And a blower blower 8 for feeding.

  The fuel cell 6 is composed of, for example, a solid oxide fuel cell, but may be of another form, for example, a polymer electrolyte fuel cell. The fuel cell 6 is composed of a cell stack in which fuel cells for generating electricity by a fuel cell reaction are stacked and arranged. Such a fuel cell includes a solid electrolyte 10 that conducts oxygen ions, The fuel cell includes a fuel electrode (not shown) provided on one side and an oxygen electrode (not shown) provided on the other side of the solid electrolyte 10. For example, zirconia doped with yttria is used as the solid electrolyte 10.

  The introduction side of the fuel electrode side 12 of the fuel cell 6 is connected to the reformer 4 via a reformed fuel gas supply passage 14, and the reformer 4 is connected to the reformer 4 via a fuel gas supply passage 16. A fuel gas supply source 18 for supplying fuel gas (for example, a buried pipe, a storage tank, or the like) is connected. A fuel pump 20 for supplying raw fuel gas is provided in the fuel gas supply passage 16. Have been. In addition, the reformer 4 is connected to a water supply source 23 (for example, a water tank or the like) for supplying reforming water via a water supply flow path 21. A water pump 25 for supplying is provided.

  Further, the introduction side of the oxygen electrode side 22 of the fuel cell 6 is connected to an air preheater 26 for preheating air via an air supply passage 24, and the air preheater 26 is connected to an air supply passage 28. Is connected to the blower blower 8.

  A combustion area 30 is provided on each of the fuel electrode side 12 and the oxygen electrode side 22 of the fuel cell 6, and the reaction fuel gas (including the residual fuel gas) discharged from the fuel electrode side 12 and the oxygen electrode side 22 The discharged air (including oxygen) is supplied to the combustion zone 30 and burned. The combustion zone 30 is connected to an air preheater 26 via an exhaust gas supply passage 32, and an exhaust gas discharge passage 34 is connected to the air preheater 26.

  The fuel cell system 2 is provided with pure water recovery means 36 for condensing water vapor contained in exhaust gas discharged from the fuel cell 6 through the exhaust gas discharge flow path 34 and collecting the water as pure water. The pure water recovery means 36 will be described later. Further, the fuel cell system 2 includes a battery housing 38, which defines a high-temperature space 40 maintained at a high temperature, and the fuel cell 6, the reformer 4, and the air preheater 26 It is provided in the housing 38 (high temperature space 40).

  The operation of the fuel cell system 2 is performed as follows. The raw fuel gas from the fuel gas supply source 18 is supplied to the reformer 4 through the fuel gas supply passage 16, and the reforming water from the water supply source 23 is supplied to the reformer 4 through the water supply passage 21. Is done. In the reformer 4, the raw fuel gas is steam-reformed by the reforming water, and the reformed fuel gas thus reformed is passed through the reformed fuel gas supply passage 14 to the fuel electrode side 12 of the fuel cell 6. Sent to The air from the blower blower 8 is supplied to an air preheater 26 through an air supply passage 28, heated by heat exchange with exhaust gas in the air preheater 26, and then passed through an air supply passage 24. The fuel is supplied to the oxygen electrode side 22 of the fuel cell 6.

  On the fuel electrode side 12 of the fuel cell 6, the reformed reformed fuel gas is oxidized, and on the oxygen electrode side 22, oxygen in the air is reduced, and the oxidation of the fuel electrode side 12 and the oxygen electrode side 22 Power generation is performed by a fuel cell reaction (electrochemical reaction) by reduction. The reaction fuel gas from the fuel electrode side 12 and the air from the oxygen electrode side 22 are supplied to the combustion zone 30, respectively, and excess fuel gas is burned using oxygen in the air.

  The exhaust gas from the combustion zone 30 is supplied to an air preheater 26 through an exhaust gas supply passage 32, and is used for heat exchange with air from the blower 8 in the air preheater 26. It is discharged to the outside through the discharge channel 34. Then, while flowing through the exhaust gas discharge passage 34, the water vapor contained in the exhaust gas is condensed and recovered by the pure water recovery means 36.

  Next, the pure water collecting means 36 will be described with reference to FIG. 2 together with FIG. The pure water recovery means 36, which constitutes a part of the pure water utilization device, includes a condensing heat exchanger 42 for exchanging heat with the exhaust gas flowing through the exhaust gas discharge passage 34. An exchanger 34 is provided in the exhaust gas discharge passage 34. The exhaust gas discharge passage 34 is defined by exhaust gas discharge ducts 44 and 46 shown in FIG.

  A radiator 48 for cooling the circulating water is provided in association with the heat exchanger 42 for condensation. The radiator 48 and the condensing heat exchanger 42 are connected via a cooling circulation channel 50, and a circulation pump 52 is provided in the cooling circulation channel 50. The radiator 48 includes a cooling fan 54, and the cooling fan 54 cools the circulating water flowing through the radiator 48.

  The pure water collecting means 36 further includes a pure water collecting container 56 (which functions as a pure water container) for collecting and storing condensed water (pure water) condensed in the heat exchanger 42 for condensing. The pure water recovery container 56 and the condensing heat exchanger 42 are connected via a pure water recovery flow path 58, and the pure water recovery flow path 58 is defined by a pure water recovery pipe 60 in FIG. In addition, in order to remove impurities in the pure water to be collected, an impurity removing unit, for example, a pure water treatment unit may be provided in the pure water collecting channel 58.

  Such pure water recovery means 36 is disposed in a pure water recovery housing 61 installed adjacent to the battery housing 38. For example, the exhaust gas exhaust duct 44 on the upstream side is connected to the side wall of the battery housing 38 and the pure water recovery duct 61. The exhaust gas discharge duct 46 on the downstream side passes through the side wall of the water recovery housing 61 and is connected to the bottom wall of the heat exchanger 42 for condensation. It is open to the atmosphere through the wall. The pure water recovery housing 61 and the battery housing 38 constitute a system housing of the pure water utilization device.

  In this reference embodiment, an overflow hole (not shown) is provided at the upper end of the pure water recovery container 56 (pure water storage container), and a drain tube 62 communicates with the overflow hole. When the stored amount of pure water in the inside exceeds the upper limit, the water is drained to the outside from the overflow hole through the drain tube 62. A drain hole (not shown) is provided at a lower end portion of the pure water recovery container 56, a drain pipe 64 is provided in the drain hole, and a drain valve 66 is provided in the drain pipe 64.

  In the pure water utilization device of the reference embodiment, a carrying container 68 for carrying the pure water stored in the pure water collecting container 56 is used. Various containers made of, for example, plastic or metal can be used as the carrying container 68. When utilizing the pure water stored in the pure water recovery container 56, as shown in FIG. 2, the carrying container 68 may be placed below the drain valve 66 and the drain valve 66 may be opened, and the operation is performed in this manner. Thereby, the pure water collected in the pure water collecting container 68 can be transferred to the carrying container 68 and used for various washings (for example, oil removal, suppression of mold generation, and the like).

  In the pure water utilization device using such a fuel cell system 2, the control is performed as shown in FIG. Referring mainly to FIGS. 1 and 3, in this embodiment, a remote control 70 for controlling the operation of the pure water utilization device is provided, and the remote control 70 includes an operation switch 72 for operating the pure water utilization device and A mode selection switch 74 for selecting an operation mode is provided. The operation switch 72 is for operating the system. When the operation switch 72 is pressed, the operation starts, and when the operation is performed again, the operation ends. The mode selection switch 74 includes a normal operation mode switch 76 and a pure water generation operation mode switch 78. When the normal operation mode switch 76 is pressed, the normal operation mode is set, and the pure water generation operation switch 78 is pressed. When operated, the pure water generation operation mode is set.

  Various operation signals from the remote controller 70 are sent to the controller 80 of the pure water utilization device. The controller 80 including a microprocessor includes a control unit 82, a normal operation signal generation unit 84, and a pure water generation operation signal generation unit 86. The control unit 82 includes the fuel pump 20, the water pump 25, the blower blower, the radiator 48, etc., as described later, the normal operation signal generation means 84 generates a normal operation signal based on the operation signal from the normal operation mode switch 76, and the pure water generation operation signal generation means 86 A pure water generation operation signal is generated based on an operation signal from the operation mode switch 78.

  The operation of the pure water utilization device is performed, for example, as follows. When the normal operation mode switch 76 is operated after the operation switch 72 is operated (or the normal operation mode switch 76 is operated during the operation in the pure water generation operation mode), the normal operation signal generation unit 84 outputs the normal operation signal. Based on the generated normal operation signal, the control means 82 operates the pure water utilization device (the fuel pump 20, the water pump 25, the blower 8 and the radiator 48, etc.) in the normal operation mode. In the normal operation mode, for example, the power generated by the fuel cell 6 fluctuates following the power load, and the generated power is consumed by the power load and condensed by the condensing heat exchanger 42 during this operation. The condensed water (pure water) is collected in the pure water recovery container 56 through the pure water recovery channel 58.

  If the pure water generation operation mode switch 78 is operated after the operation switch 72 is operated (or the pure water generation operation mode switch 78 is operated during the normal operation mode), the pure water generation operation signal generation means is generated. 84 generates a pure water generation operation signal, and based on the pure water generation operation signal, the control means 82 controls the pure water utilization device (the fuel pump 20, the water pump 25, the blower 8 and the radiator 48, etc.) to perform the pure water generation operation. Drive in mode. In the pure water generation operation mode, the power generation output of the fuel cell 6 is set to the rated output, the rotation speed of the circulating pump of the radiator 48 increases, the circulation flow rate of the circulating water increases, and the cooling fan The rotation speed of the radiator increases, and the cooling effect of the circulating water in the radiator 48 is enhanced. Therefore, in this pure water generation operation mode, the amount of condensed water (pure water) recovered in the heat exchanger 42 for condensation is increased, and the recovery efficiency is also increased. 56. At this time, the power generated by the fuel cell 6 is consumed by the power load. However, when the power load is smaller than the power output, the power is controlled so that a part of the power output is reversely flowed to the commercial power side. You.

  In the present embodiment, the pure water collected by the pure water collecting means 36 is transferred to the carrying container 68 and carried to be used for washing (for example, oil dropping, suppression of mold generation, etc.). It can be used without being transferred to the container 68. In this case, the pure water recovery container 56 also functions as a carrying container, and the pure water recovery container 56 is detachably attached to the system housing (for example, the pure water recovery housing 61). When utilizing the pure water, the pure water recovery container 56 may be removed from the system housing (the pure water recovery housing 61) and carried. When the pure water recovery container 56 is removed in this way, a new pure water recovery container is used so that the pure water is not wasted. Preferably, 56 is attached.

  Further, in the present embodiment, all the pure water collected in the pure water collecting container 56 of the pure water collecting means 36 is used as extra pure water for washing or the like. The reformer 4 is connected via a pure water supply channel (not shown), and a pure water pump (not shown) is provided in the pure water supply channel. The pure water collected in the above step may be sent to the reformer 4 by a pure water pump as reforming water.

[One Embodiment of Bathroom Pure Water Utilization Device]
Next, an embodiment of a bathroom pure water utilization device according to the present invention will be described with reference to FIGS. 4 and 5. In one embodiment of the bathroom pure water utilization device, a hot water storage device and mist generation means are provided in connection with the fuel cell. In this embodiment, members that are substantially the same as those in the above-described reference embodiment are given the same reference numerals, and descriptions thereof are omitted.

  In FIG. 4, a fuel cell system 2 to which the bathroom pure water utilization device is applied and a configuration related thereto are the same as in the above-described reference embodiment. The hot water storage device 102 in this bathroom pure water utilization device has the following configuration. The illustrated hot water storage device 102 includes a hot water storage tank 104 for storing the exhaust heat of the exhaust gas flowing from the fuel cell 6 through the exhaust gas exhaust passage 34 as hot water, and circulates water from the bottom of the hot water tank 104 to the upper end thereof. And a heat exchanger 42A for recovering exhaust heat is provided between the circulation channel 106 and the exhaust gas discharge channel 34 of the fuel cell system 2, and the heat exchanger 42A Also functions as a condensing heat exchanger for condensing water vapor (moisture) in the exhaust gas. A first opening / closing valve 108 and a circulation pump 110 are provided in the circulation passage 106.

  With this configuration, when the first on-off valve 108 is opened and the circulation pump 110 is operated, water at the bottom of the hot water storage tank 104 flows through the circulation flow path 106, and the exhaust heat recovery heat exchanger 42A The heat is exchanged with the exhaust gas flowing through the exhaust gas discharge flow path 58 and heated, and the warm water thus heated is stored from the upper end of the hot water storage tank 104 through the circulation flow path 106. Water vapor (moisture) in the exhaust gas is condensed by the heat exchange, and the condensed water (pure water) is collected in the pure water recovery container 56 through the pure water recovery flow path 58.

  A tap water supply channel 112 is connected to the bottom of the hot water storage tank 104, and a second on-off valve 114 is provided in the tap water supply channel 112. Therefore, when the second on-off valve 114 is opened, the tap water is supplied to the hot water storage tank 104 through the tap water supply channel 112.

  A hot water supply channel 116 is connected to the upper end of the hot water storage tank 104, and a first branch hot water supply channel 120 connected to a shower 118 in a bathroom is connected to the hot water supply channel 116. A second on-off valve 126 is disposed in the first branch hot water supply passage 120. Therefore, when the third opening / closing valve 126 is opened, the hot water in the hot water storage tank 104 is supplied to the shower 118 through the hot water supply channel 116 and the first branch hot water supply channel 120, and is discharged from the shower 118. When the callan 122 is opened, the hot water in the hot water storage tank 104 is supplied to the callan 122 through the hot water supply passage 116 and the second branch hot water supply passage 124, and the hot water is discharged from the callan 12.

  The illustrated mist generating means 132 is provided in connection with the bathroom heating / drying machine 134. The bathroom heating dryer 134 includes a heating dryer main body 136, and the heating dryer main body 136 is attached to, for example, a ceiling of a bathroom. A heating heat exchanger 138 for heating the air and a circulation fan 139 for circulating the air in the bathroom are provided in an air circulation passage provided in the heating / drying body 136. When the circulation fan 139 operates, the air in the bathroom flows through the air circulation channel in the heating / drying body 136, and the air heated by the heating heat exchanger 138 blows out into the bathroom through the air circulation channel. .

  Further, an exhaust passage (not shown) is provided in the heating / drying body 134, and a ventilation fan 142 is provided in an exhaust port 140. When the ventilation fan 142 operates, air in the bathroom is ventilated. It is discharged outside the room through a flow path (not shown).

  A heat source device 144 is provided in connection with the heating / drying device main body 134, and hot water as a heating medium generated by the heat source device 144 is supplied to the heating / drying device main body 136. The heat source device 144 includes, for example, a gas water heater, and includes a combustion burner 146 for burning a combustion gas (for example, city gas) to generate hot water and a feed pump 148 for feeding hot water. The supply side of the heat source unit 46 is connected to the inflow side of the heating heat exchanger 138 via the hot water outflow channel 150, and the return side thereof is connected to the outflow side of the heating heat exchanger 8 via the hot water return channel 152. In addition, a thermal valve 154 is disposed in the hot water outflow channel 46. With such a configuration, the hot water from the heat source device 144 is circulated through the hot water outflow channel 150, the heating heat exchanger 138, and the hot water return channel 152.

  The mist generating means 132 includes a mist heat exchanger 154, a splash mist ejection nozzle 156, and a micro mist ejection nozzle 158. The mist heat exchanger 154 is for warming tap water or the like to obtain hot water having a desired temperature. The inflow side of the hot water system is connected to the hot water outflow channel 150 through the mist hot water outflow channel 160, The outflow side of the system is connected to a hot water return channel 152 via a mist hot water return channel 161, and a proportional valve 162 for controlling the flow rate of hot water is provided in the mist hot water outflow channel 160.

  Further, the inflow side of the water system of the mist heat exchanger 154 is connected to a water pipe (not shown) via a mist water supply passage 164, and the fifth on-off valve 166 is connected to the mist water supply passage 164. Are arranged.

  With this configuration, when the proportional valve 162 is opened, the hot water from the hot water outflow channel 150 is discharged from the hot water outflow channel 160, the mist heat exchanger 154, and the mist hot water return channel 161. Through the hot water return flow path 152. When the fourth on-off valve 166 is opened, the tap water from the water pipe flows through the mist water supply flow path 164 and the mist heat exchanger 154, and the hot water of the hot water system passes through the mist heat exchanger 154. The water in the water system is heated by the heat exchange with the water to become hot water.

  The splash mist ejection nozzle 156 is a nozzle that sprays a splash mist (a mist having a particle size of about 50 to 100 μm), and is provided in the vicinity of the outlet of the heating / drying device main body 136. A first mist supply flow path 168 extending from the mist heat exchanger 154 is connected to the splash mist ejection nozzle 156, and a fifth on-off valve 170 is provided in the first mist supply flow path 168. ing. Therefore, when the fifth on-off valve 170 is opened, the hot water from the mist heat exchanger 154 is supplied through the first mist supply flow path 168 and is sprayed in a mist form from the splash mist jet nozzle 156.

  The micro mist ejection nozzle 158 is a nozzle for spraying a micro mist (a mist smaller than a splash mist and having a particle size of about 5 to 20 μm). It is arranged. This micro mist ejection nozzle 158 branches from the first mist supply flow path 168 (branches upstream of the location of the fifth on-off valve 170) and the second mist supply flow path 172. The sixth opening / closing valve 174 is disposed in the second mist supply flow path 172. Therefore, when the sixth on-off valve 174 is opened, the hot water from the mist heat exchanger 154 is supplied through the first mist supply passage 168 and the second mist supply passage 172, and the micro mist is ejected. Mist is sprayed from the nozzle 158.

  This bathroom pure water utilization device is configured such that hot water from the hot water storage device 102 is supplied to the mist heat exchanger 154 of the bathroom heating / drying device 134. That is, the hot water supply passage 116 and the mist water supply passage 164 (downstream from the portion where the fourth on-off valve 166 is provided) are connected via the mist hot water supply passage 182, and the mist hot water supply passage 182 is connected. A seventh opening / closing valve 184 is provided in the supply flow path 182, and when the seventh opening / closing valve 184 is opened, the hot water from the hot water storage tank 104 is supplied with the hot water supply flow path 116, the mist hot water supply flow path 182, and The water is supplied to the mist heat exchanger 154 through the mist water supply channel 164.

  In this bathroom pure water utilization device, the pure water recovered as described above in the pure water recovery container 56 (pure water storage container) of the pure water recovery means 36A can be used in the shower 118, and It is configured so that it can be used also in the bathroom heating / drying machine 134. More specifically, the pure water recovery container 56 and the first branch hot water supply channel 120 (downstream from the portion where the third on-off valve 126 is provided) are connected via the first pure water supply channel 186. An eighth on-off valve 188 and a pure water pump 190 are provided in the first pure water supply flow path 186. Therefore, when the eighth on-off valve 188 is opened and the pure water pump 190 is operated when the third on-off valve 126 is in the closed state, the pure water in the pure water recovery container 56 is supplied with the first pure water The water is supplied to the shower 118 through the passage 186 and the first branch hot water supply channel 120.

  In addition, the pure water recovery container 56 (in this embodiment, the first pure water supply flow path 186 extending from the pure water recovery container 56, upstream of the location of the eighth on-off valve 88) and the mist hot water supply flow The path 182 (downstream of the location of the seventh on-off valve 184) is connected via a second pure water supply flow path 192, and the ninth on-off valve 194 is connected to the second pure water supply flow path 192. Are arranged. Therefore, when the ninth on-off valve 194 is opened and the pure water pump 190 is operated when the seventh on-off valve 184 is in the closed state, the pure water in the pure water recovery container 56 is supplied with the first pure water The water is supplied to the mist water supply flow path 164 through the path 186, the second pure water supply flow path 186, and the mist hot water supply flow path 182. The second pure water supply flow path 194 may be connected to the mist water supply flow path 164 instead of being connected to the mist hot water supply flow path 182.

  The above-described bathroom pure water utilization device in which the fuel cell 6 is combined with the hot water storage device 102 and the mist generating means 132 is operated by, for example, a remote controller 202 shown in FIG. The illustrated remote controller 200 includes an operation switch 202, a bathroom heating switch 204, a bathroom ventilation switch 206, a bathroom drying switch 208, and a bathroom cool air switch 210. The operation switch 202 is a switch for operating the bathroom pure water utilization device. When the operation switch 202 is pressed, the operation starts, and when the operation is pressed again, the operation ends. The bathroom heating switch 204, the bathroom ventilation switch 206, the bathroom drying switch 208, and the bathroom cool air switch 210 are switches for controlling the operation of the bathroom heating / drying machine 134. For example, the bathroom heating switch 204 (or the bathroom ventilation switch 206, When the bathroom drying switch 208 and the bathroom cool air switch 210 are input, the operation of the bathroom heating and drying machine 134 is controlled in the same manner as in the related art, and the bathroom heating operation (or bathroom ventilation operation, bathroom drying operation, bathroom cooling air operation) is performed.

  The remote controller 200 further includes a mist operation input unit 212 and a cleaning operation input unit 213. The mist operation input unit 212 is an operation input unit for controlling the operation of the mist generation unit 132 and the bathroom heating / drying unit 134, and includes a micro switch 214, a splash switch 216, a hot water switch 218, and a cold water switch 220. When the micro switch 214 (or the splash switch 216) is operated, the operation of the mist generating means 132 and the bathroom heater / dryer 134 is controlled in the same manner as in the prior art, and the mist is discharged from the micro mist ejection nozzle 158 (or the splash mist ejection nozzle 156). A micro mist operation (or a splash mist operation) for spraying is performed. The hot water switch 218 (or cold water switch 220) sets the mist ejected from the mist ejection nozzles 156, 158 to hot water (or cold water).

  The cleaning operation input means 213 includes a shower switch 222 and a mist switch 224. When the input operation of the shower switch 222 is performed, the bathroom pure water utilization device performs a shower cleaning operation. That is, the eighth opening / closing valve 188 is opened, the pure water pump 190 is operated, and the pure water in the pure water recovery container 56 (pure water storage container) of the pure water recovery means 36A is supplied with the first pure water. The water is supplied to the shower 118 through the flow path 186 and a part of the first branch hot water supply flow path 120 to be discharged, and the bathroom, the bathtub, and the like are cleaned (suppressing the generation of mold, etc.) using the pure water from the shower 1118. Can be. At this time, the third on-off valve 126, the ninth on-off valve 194, and the like are kept closed.

  In addition, when the mist switch 224 is operated, the bathroom pure water utilization device performs a mist cleaning operation. That is, the circulating fan 139 of the bathroom heater / dryer 134 is operated, the sixth opening / closing valve 174 is opened, the ninth opening / closing valve 194 is further opened, and the pure water pump 190 is operated. Pure water in the water recovery container 56 is part of the first pure water supply flow path 186, the second pure water supply flow path 192, part of the mist hot water supply flow path 182, and the mist water supply flow path. 164 and the second mist supply flow path 172 are supplied to the micro mist discharge nozzle 158, and from the micro mist discharge nozzle 158 to the air circulating flow path (not shown) of the bathroom heating / drying device 134, the mist is formed. Sprayed. The pure water sprayed in this way flows into the bathroom through an air circulation channel (not shown) by the action of the circulation fan 139 and fills the bathroom, thus cleaning the entire bathroom (causing mold generation). Request, etc.). At this time, the fourth on-off valve 166, the fifth on-off valve 170, the seventh on-off valve 184, and the eighth on-off valve 188 are kept closed.

  In this embodiment, the pure water is ejected from the micro mist ejection nozzle 158, but instead, the pure mist may be ejected from the splash mist ejection nozzle 170 toward the bathroom. The fifth on-off valve 170 is kept open and the sixth on-off valve 174 is kept closed.

  In this embodiment, the pure water collected by the pure water collecting means 36A is configured to be used by both the shower 118 and the bathroom heater / dryer 134. However, the present invention is not limited to such a configuration. You may make it available only to any one of the heating dryers 134.

  Further, in the above-described embodiment, the bathroom heating / drying device 134 is provided with the splash mist ejection nozzle 156 and the micro mist ejection nozzle 158. However, the present invention is not limited to such an embodiment, and the splash mist is not limited to this. The present invention can be similarly applied to a device provided with only one of the ejection nozzle 156 and the micro mist ejection nozzle 158.

  As described above, one embodiment of the bathroom pure water utilization device according to the present invention has been described, but the present invention is not limited to such an embodiment, and various changes and modifications can be made without departing from the scope of the present invention.

2 Fuel Cell System 4 Reformer 6 Fuel Cell 36, 36A Pure Water Recovery Means 42 Condensing Heat Exchanger 42A Exhaust Heat Recovery Heat Exchanger (Condensing Heat Exchanger)
48 Radiator 56 Pure water recovery container (pure water storage container)
61 Pure water recovery housing 68 Carrying container 70, 200 Remote controller 84 Normal operation signal generation means 86 Pure water generation operation signal generation means 102 Hot water storage device 104 Hot water storage tank 118 Shower 134 Bathroom heater / dryer 156 Splash mist jet nozzle 158 Micro mist jet nozzle 164 Water supply channel for mist 182 Hot water supply channel for mist 186 First pure water supply channel 192 Second pure water supply channel

Claims (2)

A pure water container for recovering water vapor contained in the exhaust gas as condensed water by heat exchange between the exhaust gas from the fuel cell in the fuel cell system and water from the hot water storage tank of the hot water storage device, and hot water from the hot water storage device A shower for use, a hot water supply flow path connecting the hot water storage device and the shower, a pure water supply flow path connecting the pure water storage container and the hot water supply flow path, and a pure water supply flow A pure water pump disposed in a path, and pure water in the pure water container is discharged from the shower through the pure water supply flow path and the hot water supply flow path by the operation of the pure water pump. A device for utilizing pure water for bathrooms. In a fuel cell system, a pure water container for collecting water vapor contained in exhaust gas as condensed water by heat exchange between exhaust gas from the fuel cell and water from a hot water storage tank of a hot water storage device, and a bathroom by generating mist Mist generating means for providing a mist effect in the mist, a mist water supply flow path or a mist hot water supply flow path for supplying water or hot water to the mist generation means, the pure water container and the mist A pure water supply passage connecting the water supply passage or the hot water supply passage for mist, and a pure water pump disposed in the pure water supply passage; The pure water in the pure water storage container is ejected from the mist ejection nozzle of the mist generating means through the pure water supply channel and the mist water supply channel or the mist hot water supply channel. For bathrooms Water utilization apparatus.

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