JP2011050912A - Water treatment apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a water treatment apparatus capable of preventing propagation of fungus in a water treatment flow passage, thus ensuring a stable flow rate for a long time. <P>SOLUTION: The water treatment apparatus includes a storage tank 11, a fungus capture means 16 provided with a supporting plate 15 having an opening 17 and a TOC (total organic carbon) adsorbing means 14, a water pump 12, an ion-exchange device 13, a fuel cell generator 111, a cooling water tank 19, and a cooling water circulation pump 110. In the water treatment apparatus, water recovered from steam contained in an exhaust gas from the fuel cell generator 111 by means of an air side heat exchanger 112 and a fuel side heat exchanger 113 is brought into contact with the TOC adsorbing means 14 and stored in the storage tank 11, excess water in the storage tank 11 being discharged through a drain outlet 18. Thereby since the TOC concentration and the fungus are decreased in the water treatment flow passage, the water treatment apparatus can be obtained which is capable of preventing clogging of the water treatment flow passage due to the fungus propagation, and ensures the stable flow rate for a long time. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a water treatment device used for a fuel cell system or the like.

  Conventionally, a water treatment apparatus is for purifying water stored in a water tank by removing ion components through an ion exchange apparatus composed of an ion exchange resin or the like after pumping up water by a water pumping means such as a pump. (For example, refer to Patent Document 1). With reference to Patent Document 1, a general configuration of such a water treatment apparatus will be described.

  FIG. 6 is a configuration diagram showing an outline of a water treatment device mounted on a conventional fuel cell system described in Patent Document 1.

  In FIG. 6, the water pumped up from the water storage tank 65 by the water pump 66 is purified through the ion exchange device 69 and then stored in the cooling water tank 610. Here, an antibacterial filter 67 and an ultraviolet ray device 68 are provided in the preceding stage of the ion exchange device 69 for the purpose of inhibiting the growth of fungi in the water treatment path from the water storage tank 65 to the ion exchange device 69 via the water pump 66. Be placed. The water purified by the ion exchange device 69 is temporarily stored in the cooling water tank 610, pumped out from the cooling water tank 610 by the circulation pump 610, circulated through the fuel cell 61, and the fuel cell 61 is kept at a constant temperature. I keep it. Further, water is pumped out from the cooling water tank 610 by a water pump 612 and used as water for reforming the city gas and generating hydrogen in the fuel gas generator 63.

  Here, the fuel cell 61 receives the supply of hydrogen from the fuel gas generation device 63 and the air from the air supply device 62 to generate power, and exhaust air discharged from the fuel cell 61 is sent to the heat exchanger 64. The water is separated from the water vapor contained therein, and the separated water is collected in the water storage tank 65.

JP-A-9-63612

  However, in the conventional configuration, in the water treatment path from the water storage tank 65 to the ion exchange device 69 via the water pump 66, it is not a perfect means for suppressing the growth of fungi. There was a problem that blockage occurred and a stable flow rate could not be secured over a long period of time.

  That is, in the configuration of FIG. 6, the growth of fungi can be suppressed at the place where the antibacterial filter 67 is installed or where the ultraviolet ray is irradiated by the ultraviolet ray device 68, but without being sterilized by the antibacterial filter 67 or the ultraviolet ray device 68. The surviving fungi grew at a place away from the antibacterial filter 67 and the ultraviolet device 68, and eventually, there was a problem of causing clogging due to the growth of fungi in the water treatment route. Further, since a particulate antibacterial agent is generally used for the antibacterial filter 67, the antibacterial agent is released from the antibacterial filter 67, and the antibacterial agent itself has a problem of blocking the water treatment path.

In consideration of the above problems, the present invention provides a water treatment device used for a fuel cell system or the like,
An object of the present invention is to provide a means for avoiding blockage in a water treatment path generated by fungal growth more efficiently, and to provide a water treatment apparatus capable of ensuring a stable flow rate over a long period of time.

  In order to solve the conventional problems, the water treatment apparatus of the present invention is provided inside the water tank, and has fungus capturing means for actively capturing fungi contained in the water, and is generated in the fuel cell power generation apparatus. The condensed water is configured to be stored in a water tank after contacting the fungus capturing means.

  As a result, the fungi contained in the condensed water recovered from the exhaust air discharged from the fuel cell power generation device are actively captured by the fungus capturing means, so the ion exchange device from the water storage tank via the water pump In the water treatment route leading to, the growth of fungi can be suppressed. As a result, blockage due to fungal growth in the water treatment path can be avoided, and a stable flow rate can be secured over a long period of time.

  In addition, the fuel cell system of the present invention includes an organic substance adsorbing means (hereinafter referred to as TOC, organic substance adsorbing means is referred to as TOC adsorbing means) in which the fungus capturing means adsorbs organic substances contained in water. The generated condensed water is configured to be stored in a water tank after contacting the TOC adsorbing means.

  As a result, the TOC adsorbing means can actively adsorb TOC contained in the condensed water recovered from the exhaust air discharged from the fuel cell power generator, so that the TOC adsorbing means is rich in TOC. become. Then, the fungi contained in the condensed water are positively captured by the fungus capturing means using the abundant TOC adsorbed by the TOC adsorbing means as a nutrient source. Moreover, since the TOC contained in the condensed water is actively adsorbed by the TOC adsorbing means, a water storage tank disposed downstream of the TOC adsorbing means or the fungus capturing means, or a water pump from the water storage tank via the water pump Since the TOC concentration decreases in the path leading to the ion exchange apparatus, the fungus becomes poorly eutrophic, and the growth of the fungus can be suppressed in the water treatment path from the water tank to the ion exchange apparatus via the water pump. . As a result, blockage due to fungal growth in the water treatment path can be avoided, and a stable flow rate can be secured over a long period of time.

  In the fuel cell system of the present invention, the TOC adsorption means includes activated carbon.

  As a result, activated carbon as the TOC adsorbing means can adsorb TOC more effectively, so that the capture of fungi in the fungus capturing means can be further promoted, and the concentration of TOC in the water treatment path can be further reduced. Propagation of fungi in the treatment path can be more efficiently suppressed. This is because the surface of the activated carbon has many polar functional groups, has a high affinity with TOC, and can exhibit a higher TOC adsorption effect.

  Further, in the fuel cell system of the present invention, the fungus trapping means has an opening, and the condensed water generated in the fuel cell power generator comes into contact with the fungus trapping means or the TOC adsorbing means, and then the fungus trapping means has an opening. The water is stored in the water storage part of the water tank.

As a result, the condensed water flowing into the water storage tank always comes into contact with the fungus capturing means and the TOC adsorbing means, so that the fungi contained therein are captured by the fungus capturing means, and the TOC contained therein Is adsorbed by the TOC adsorbing means, the TOC concentration of the TOC adsorbing means can be improved with time, and as a result, the TOC adsorbing means can be promoted to a rich state. In addition, since the condensed water having a reduced TOC concentration is stored in the water storage tank through the opening, in the water treatment path from the water storage tank to the ion exchange device through the water pump, it is in a poor state for fungi. Since it can accelerate | stimulate, the propagation of the fungi in a water treatment path | route can be suppressed efficiently.

  In the fuel cell system of the present invention, the opening of the fungus capturing means has a narrow hole whose diameter is smaller than the size of the fungus.

  As a result, the fungi cannot pass through the narrow hole provided in the opening of the fungus capturing means, so that the fungi can be blocked from entering the water storage tank and reach the ion exchange device from the water storage tank via the water pump. Propagation of fungi in the water treatment route can be suppressed more efficiently.

  In the fuel cell system of the present invention, the fungus capturing means includes a heating means for heating the TOC adsorption means.

  Thereby, since the fungi captured by the TOC adsorbing means can be thermally sterilized, it is possible to prevent the fungi from growing unlimitedly in the fungus capturing means.

  In the fuel cell system of the present invention, the fungus trapping means is arranged so as to be detachable from the water tank.

  Thereby, since the fungus-capturing means can be periodically replaced, a water treatment apparatus that can secure a stable flow rate for a longer period can be realized.

  Further, the fuel cell system of the present invention is configured such that the water tank has a drain outlet that can drain condensed water at a position lower than the lowest height of the fungus capturing means.

  As a result, surplus water in the water storage tank can be drained to the outside of the water storage tank through the drain port, so that the fungus capturing means can be prevented from being submerged in the water stored in the water tank, and the fungus capturing means Can be prevented from flowing into the reservoir.

  The water treatment apparatus of the present invention can suppress the growth of fungi in the water treatment path, and thus can realize a water treatment apparatus that can secure a stable flow rate over a long period of time.

The block diagram which shows the water treatment apparatus in Embodiment 1 of this invention The block diagram which shows the water treatment apparatus in Embodiment 2 of this invention. The block diagram which shows the water treatment apparatus in Embodiment 3 of this invention. The block diagram which shows the water treatment apparatus in Embodiment 4 of this invention. The block diagram which shows the water treatment apparatus in Embodiment 5 of this invention. Configuration diagram showing a conventional water treatment device

  The first invention includes a water tank for storing water, water pumping means for pumping water from the water tank, ion exchange means for purifying the pumped water, and water disposed in the water tank. A water treatment apparatus comprising a fungus capturing means for capturing fungi and a fuel cell power generation device, wherein the condensed water generated in the fuel cell power generation device is contacted with the fungus capture means and then stored in a water tank. Thus, the fungus capturing means can actively capture the fungi contained in the condensed water collected from the exhaust air discharged from the fuel cell power generator, so that the ion exchange device can be transferred from the water storage tank to the ion exchange device via the water pump. In the water treatment route to reach, fungus growth can be suppressed. As a result, blockage due to fungal growth in the water treatment path can be avoided, and a stable flow rate can be secured over a long period of time.

  In the second invention, in particular, the fungus-capturing means of the first invention comprises a TOC adsorbing means for adsorbing TOC contained in water, and the condensed water generated in the fuel cell power generator is TOC adsorbed. This is a water treatment device that is stored in a water tank after coming into contact with the means. With this configuration, the TOC adsorbing means positively collects the TOC contained in the condensed water recovered from the exhaust air discharged from the fuel cell power generation device. Since it can adsorb | suck, in a TOC adsorption | suction means, it will be in a state with abundant TOC. The fungi contained in the condensed water can be positively captured by the fungus capturing means using the abundant TOC adsorbed by the TOC adsorbing means as a nutrient source. Further, since the TOC contained in the condensed water is positively adsorbed by the TOC adsorbing means, a water tank disposed downstream of the TOC adsorbing means or the fungus capturing means, or ions from the water tank via the water pump Since the TOC concentration decreases in the path leading to the exchange device, the fungus is in an eutrophic state. Therefore, it is possible to suppress the growth of fungi in the water treatment path from the water storage tank to the ion exchange device via the water pump. Become. As a result, blockage due to fungal growth in the water treatment path can be avoided, and a stable flow rate can be secured over a long period of time.

  In the third invention, in particular, the TOC adsorbing means of the second invention is configured by including activated carbon, so that the activated carbon as the TOC adsorbing means has many polar functional groups on its surface, and is higher. Since the TOC adsorption ability can be exhibited, TOC can be more effectively adsorbed, and as a result, the capture of fungi by the fungus breeding means can be further promoted. Moreover, since the TOC density | concentration in a water treatment path | route can be reduced more, propagation of the fungi in a water treatment path | route can be suppressed more efficiently.

  In particular, according to a fourth aspect of the present invention, in the second or third aspect of the present invention, the fungus trapping means includes an opening, and the condensed water generated in the fuel cell power generator contacts the fungus trapping means or the TOC adsorbing means. After that, the condensate flowing into the water storage tank is always in contact with the fungus trapping means or the TOC adsorbing means by storing water in the water reservoir of the water tank through the opening of the fungus trapping means. The fungi contained therein are captured by the fungus capturing means, and the TOC contained therein is adsorbed by the TOC adsorbing means, so that the TOC concentration in the TOC adsorbing means can be improved over time. The eutrophic state of the TOC adsorption means can be promoted. In addition, since condensed water with reduced TOC concentration is stored in the water storage tank through the opening, it is possible to promote an oligotrophic state in the water treatment path from the water storage tank to the ion exchange device via the water pump. it can. As a result, it is possible to prevent clogging associated with fungal growth in the water path.

  In the fifth invention, in particular, the opening in the fungus trapping means of the fourth invention is constituted by a narrow hole whose aperture is smaller than the size of the fungus, so that the fungus is provided in the opening of the fungus trapping means. Therefore, it is possible to block fungi from entering the water storage tank, and to more effectively suppress the growth of fungi in the water treatment path from the water storage tank to the ion exchange device via the water pump.

  In the sixth aspect of the present invention, in particular, the fungus captured by the TOC adsorbing means is configured such that the fungus capturing means of any one of the second to fifth inventions comprises a heating means for heating the TOC adsorbing means. Can be heat-sterilized, so that the fungus can be prevented from growing indefinitely in the fungus-capturing means.

  In the seventh aspect of the invention, in particular, the fungus-capturing means can be periodically replaced by arranging the fungus-capturing means of any one of the first to sixth inventions to be removable from the water tank. Thus, a water treatment device that can secure a stable flow rate over a longer period can be realized.

In the eighth aspect of the invention, in particular, the water tank of any one of the first to seventh aspects has a drain outlet from which condensed water can be drained at a position lower than the lowest height of the fungus capturing means. Therefore, surplus water stored in the water storage tank can be drained to the outside of the water storage tank through the drain port, so that the fungus capturing means can be prevented from being submerged with the water stored in the water storage tank, and the fungus can be removed from the fungus capturing means. It can be prevented from flowing into the reservoir. As a result, it is possible to prevent clogging associated with fungal growth in the water path.

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

(Embodiment 1)
FIG. 1 shows the configuration of a water treatment apparatus according to the first embodiment of the present invention. In FIG. 1, a water storage tank 11, a water pump 12, and an ion exchange device 13 are connected by a pipe to constitute a water treatment path. The water tank 11 has a drain port 18 for draining the water stored therein, and the fungus capturing means 16 is located above the height of the drain port 18 of the water tank 11 inside the water tank 11. It is arranged to become. Here, the fungus capturing means 16 is composed of activated carbon as the TOC adsorbing means 14 and a support plate 15 that supports the activated carbon, and the support plate 15 includes an opening 17 through which condensed water in contact with the activated carbon passes. To do. The fuel cell power generation device 111 is connected to the water storage tank 11 via the air side heat exchanger 112, the fuel side heat exchanger 113, and piping. The fuel cell power generation device 111 and the cooling water tank 19 are connected to the cooling water circulation pump 110 and piping. Connected through.

  About the water treatment apparatus comprised as mentioned above, the operation | movement and an effect | action are demonstrated below.

  First, the water stored in the water storage tank 11 is pumped up by the water pump 12, sent to the ion exchange device 13, ion components contained in the water are removed, and the water is stored in the cooling water tank 19. From the cooling water tank 19, the cooling water circulates through the fuel cell power generation device 111 by the cooling water circulation pump 110 to keep the fuel cell power generation device 111 at a constant temperature. Exhaust air and exhaust fuel gas discharged from the fuel cell power generator 111 are respectively sent to the air-side heat exchanger 112 and the fuel-side heat exchanger 113, and water is supplied from water vapor contained in the exhaust air and exhaust fuel gas. It is recovered and falls as condensed water onto the activated carbon as the TOC adsorbing means 14 of the fungus capturing means 16 from the upper part of the water storage tank 11. Thereafter, the condensed water that has come into contact with the activated carbon as the TOC adsorbing means 14 is stored in the water storage tank 11 through the opening 17 provided in the support plate 15 of the fungus capturing means 16. Further, in the water storage tank 11, when the water level of the stored water reaches a predetermined amount, excess water is drained from the drain port 18 provided on the side surface of the water storage tank 11.

  As described above, in the present embodiment, the fuel cell power generation includes the TOC adsorption unit that is disposed inside the water tank and captures the TOC contained in the water, and the fungus capture unit including the TOC adsorption unit. After the condensed water generated in the apparatus comes into contact with the TOC adsorbing means, the TOC adsorbing means collects the condensed water collected from the exhaust air discharged from the fuel cell power generation device. Since the contained TOC can be actively adsorbed, the TOC adsorbing means becomes rich in TOC. Then, the fungi contained in the condensed water are positively captured by the fungus capturing means using the abundant TOC adsorbed by the TOC adsorbing means as a nutrient source. Moreover, since the TOC contained in the condensed water is positively adsorbed by the TOC adsorbing means, a water storage tank disposed downstream of the TOC adsorbing means or the fungus capturing means, or a water pump from the water storage tank via the water pump Since the TOC concentration decreases in the path leading to the ion exchange device, the fungus is in an eutrophic state, so that the growth of the fungus can be suppressed in the water treatment path from the water storage tank to the ion exchange device via the water pump. Become. As a result, blockage due to fungal growth in the water treatment path can be avoided, and a stable flow rate can be secured over a long period of time.

  In addition, the water storage tank 11 of this Embodiment is an example of the water tank of this invention, and the water pump 12 of this Embodiment is an example of the water pumping-out means of this invention.

(Embodiment 2)
FIG. 2 shows a configuration of a water treatment apparatus according to the second embodiment of the present invention. In FIG. 2, the same components as those in FIG. 1 are denoted by the same reference numerals, and description thereof may be omitted.

  As shown in FIG. 2, the water treatment apparatus of the present embodiment is different from the first embodiment in that the opening of the support plate 22 of the fungus capturing means 21 is configured with a narrow hole 23 whose diameter is smaller than the size of the fungus. This is different from the one water treatment apparatus. Since other components are the same as those in the first embodiment, the description thereof is omitted.

  Below, the flow of the condensed water which is the point of invention of the water treatment apparatus of this Embodiment is demonstrated.

  First, the water stored in the water storage tank 11 is pumped up by the water pump 12, sent to the ion exchange device 13, ion components contained in the water are removed, and the water is stored in the cooling water tank 19. From the cooling water tank 19, the cooling water circulates through the fuel cell power generation device 111 by the cooling water circulation pump 110 to keep the fuel cell power generation device 111 at a constant temperature. Exhaust air and exhaust fuel gas discharged from the fuel cell power generator 111 are respectively sent to the air-side heat exchanger 112 and the fuel-side heat exchanger 113, and water is supplied from water vapor contained in the exhaust air and exhaust fuel gas. It is recovered and falls as condensed water onto the activated carbon as the TOC adsorbing means 14 of the fungus capturing means 21 from the upper part of the water storage tank 11. Thereafter, the condensed water that has come into contact with the activated carbon as the TOC adsorbing means 14 is stored in the water storage tank 11 through a narrow hole 23 provided in the support plate 22 of the fungus capturing means 21. Further, in the water storage tank 11, when the water level of the stored water reaches a predetermined amount, excess water is drained from the drain port 18 provided on the side surface of the water storage tank 11.

  Here, the fine holes 23 provided in the support plate 22 serve to filter the fungi. That is, since the fine hole 23 is smaller than the size of the fungus, the fungus cannot pass through the fine hole 23 and therefore remains in the fungus capturing means 23. On the other hand, the condensed water passes through the narrow hole 23 and is stored in the water storage tank 11.

  As described above, in this embodiment, since fungi cannot pass through the narrow hole provided in the opening of the fungus capturing means, it is possible to block fungi from entering the water tank, and to supply water from the water tank. Propagation of fungi in the water treatment path leading to the ion exchange device via the pump can be more effectively suppressed. As a result, it is possible to avoid clogging by fungi in the water purification path from the water storage tank to the ion exchange device via the water supply means, so that a water treatment device that can secure a stable flow rate over a long period of time can be realized.

  In addition, the water storage tank 11 of this Embodiment is an example of the water tank of this invention, and the water pump 12 of this Embodiment is an example of the water pumping-out means of this invention.

(Embodiment 3)
FIG. 3 shows a configuration of a water treatment apparatus according to the third embodiment of the present invention. In FIG. 3, the same components as those in FIG. 1 are denoted by the same reference numerals, and description thereof may be omitted.

  As shown in FIG. 3, the water treatment apparatus of the present embodiment is different from the water treatment apparatus of Embodiment 1 in that a heating means 32 for heating the TOC adsorption means 14 is arranged in the fungus propagation means 31. . Since other components are the same as those in the first embodiment, the description thereof is omitted.

  Below, the flow of the condensed water which is the point of invention of the water treatment apparatus of this Embodiment is demonstrated.

First, the water stored in the water storage tank 11 is pumped up by the water pump 12, sent to the ion exchange device 13, ion components contained in the water are removed, and the water is stored in the cooling water tank 19. From the cooling water tank 19, the cooling water circulates through the fuel cell power generation device 111 by the cooling water circulation pump 110 to keep the fuel cell power generation device 111 at a constant temperature. Exhaust air and exhaust fuel gas discharged from the fuel cell power generator 111 are respectively sent to the air-side heat exchanger 112 and the fuel-side heat exchanger 113, and water is supplied from water vapor contained in the exhaust air and exhaust fuel gas. It is collected and falls as condensed water onto the activated carbon as the TOC adsorbing means 14 of the fungus capturing means 31 from the upper part of the water storage tank 11. Thereafter, the condensed water that has come into contact with the activated carbon as the TOC adsorption unit 14 is stored in the water storage tank 11 through the opening 17 provided in the support plate 15 of the fungus capturing unit 31. Further, the fungi captured by the activated carbon as the TOC adsorption unit 14 are sterilized by heating by the heating unit 32. Further, in the water storage tank 11, when the water level of the stored water reaches a predetermined amount, excess water is drained from the drain port 18 provided on the side surface of the water storage tank 11.

  As described above, in the present embodiment, since the fungi actively captured by the TOC adsorbing means can be thermally sterilized, it is possible to prevent the fungi from growing unlimitedly in the fungus capturing means. As a result, it is possible to avoid clogging by fungi in the water purification path from the water storage tank to the ion exchange device via the water supply means, so that a water treatment device that can secure a stable flow rate over a long period of time can be realized.

  In addition, the water storage tank 11 of this Embodiment is an example of the water tank of this invention, and the water pump 12 of this Embodiment is an example of the water pumping-out means of this invention.

(Embodiment 4)
FIG. 4 shows the configuration of a water treatment apparatus according to the fourth embodiment of the present invention. In FIG. 4, the same components as those in FIG. 1 are denoted by the same reference numerals, and description thereof may be omitted.

  As shown in FIG. 4, the water treatment apparatus of the present embodiment is characterized in that the opening of the support plate 42 of the fungus breeding means 41 is formed by a narrow hole 43 whose diameter is smaller than the size of the fungus, The means 41 differs from the water treatment apparatus of the first embodiment in that a heating means 44 for heating the TOC adsorption means 14 is disposed. Since other components are the same as those in the first embodiment, the description thereof is omitted.

  Below, the flow of the condensed water which is the point of invention of the water treatment apparatus of this Embodiment is demonstrated.

  First, the water stored in the water storage tank 11 is pumped up by the water pump 12, sent to the ion exchange device 13, ion components contained in the water are removed, and the water is stored in the cooling water tank 19. From the cooling water tank 19, the cooling water circulates through the fuel cell power generation device 111 by the cooling water circulation pump 110 to keep the fuel cell power generation device 111 at a constant temperature. Exhaust air and exhaust fuel gas discharged from the fuel cell power generator 111 are respectively sent to the air-side heat exchanger 112 and the fuel-side heat exchanger 113, and water is supplied from water vapor contained in the exhaust air and exhaust fuel gas. It is collected and falls as condensed water onto the activated carbon as the TOC adsorbing means 14 of the fungus capturing means 41 from the upper part of the water storage tank 11. Thereafter, the condensed water that has come into contact with the activated carbon as the TOC adsorbing means 14 is stored in the water storage tank 11 through a narrow hole 43 provided in the support plate 42 of the fungus capturing means 41. Further, the fungi captured by the activated carbon as the TOC adsorption unit 14 are sterilized by heating by the heating unit 44. Furthermore, in the water storage tank 11, when the water level of the stored water reaches a predetermined amount, excess water is drained from the drain port 18 provided on the side surface of the water storage tank 11.

  Here, the fine holes 43 provided in the support plate 42 serve to filter the fungi. That is, since the fine hole 43 is smaller than the size of the fungus, the fungus cannot pass through the fine hole 43 and therefore remains in the fungus capturing means 41. On the other hand, the condensed water passes through the narrow hole 43 and is stored in the water storage tank 11.

  As described above, in this embodiment, since fungi cannot pass through the narrow hole provided in the opening of the fungus capturing means, it is possible to block fungi from entering the water tank, and to supply water from the water tank. Propagation of fungi in the water treatment path leading to the ion exchange device via the pump can be more effectively suppressed. Moreover, since the fungi actively captured by the TOC adsorption means can be thermally sterilized, the fungi can be prevented from growing indefinitely in the fungus capture means. As a result, it is possible to avoid clogging by fungi in the water purification path from the water storage tank to the ion exchange device via the water supply means, so that a water treatment device that can secure a stable flow rate over a long period of time can be realized.

  In addition, the water storage tank 11 of this Embodiment is an example of the water tank of this invention, and the water pump 12 of this Embodiment is an example of the water pumping-out means of this invention.

(Embodiment 5)
FIG. 5 shows a configuration of a water treatment apparatus according to the fifth embodiment of the present invention. In FIG. 5, the same components as those in FIG. 1 are denoted by the same reference numerals, and description thereof may be omitted.

  As shown in FIG. 5, the water treatment apparatus of the present embodiment is different from the water treatment apparatus of Embodiment 1 in that the fungus capturing means 16 can be removed from the water storage tank 11. Since other components are the same as those in the first embodiment, the description thereof is omitted.

  Below, the flow of the condensed water and the structure of the fungus capturing means, which are the points of the invention of the water treatment apparatus of the present embodiment, will be described.

  First, the water stored in the water storage tank 11 is pumped up by the water pump 12, sent to the ion exchange device 13, ion components contained in the water are removed, and the water is stored in the cooling water tank 19. From the cooling water tank 19, the cooling water circulates through the fuel cell power generation device 111 by the cooling water circulation pump 110 to keep the fuel cell power generation device 111 at a constant temperature. Exhaust air and exhaust fuel gas discharged from the fuel cell power generator 111 are respectively sent to the air-side heat exchanger 112 and the fuel-side heat exchanger 113, and water is supplied from water vapor contained in the exhaust air and exhaust fuel gas. It is recovered and falls as condensed water onto the activated carbon as the TOC adsorbing means 14 of the fungus breeding means 16 from the upper part of the water storage tank 11. Thereafter, the condensed water that has come into contact with the activated carbon as the TOC adsorbing means 14 is stored in the water storage tank 11 through the opening 17 provided in the support plate 15 of the fungus capturing means 16. Further, in the water storage tank 11, when the water level of the stored water reaches a predetermined amount, excess water is drained from the drain port 18 provided on the side surface of the water storage tank 11.

  Here, the fungus capturing means 16 is attached to the water storage tank 11 via a guide 51, and is configured so that the fungus capturing means 16 can be periodically removed from the water storage tank 11.

  As described above, in the present embodiment, since the fungus trapping means can be detached from the water storage tank through the guide, the fungus trapping means can be easily maintained regularly, so that the water treatment path Occlusion due to the propagation of fungi can be avoided, and a stable flow rate can be secured over a long period of time.

  In addition, the water storage tank 11 of this Embodiment is an example of the water tank of this invention, and the water pump 12 of this Embodiment is an example of the water pumping-out means of this invention.

  As described above, the water treatment apparatus according to the present invention can suppress the growth of fungi in the water treatment path and can secure a stable flow rate over a long period of time, and thus purifies water such as tap water such as a fuel cell system. Can be applied to industrial fields.

DESCRIPTION OF SYMBOLS 11 Water storage tank 12 Water pump 13 Ion exchange apparatus 14 TOC adsorption means 15, 22, 42 Support plate 16, 21, 31, 41 Fungi capture means 17 Opening part 18 Drain outlet 19 Cooling water tank 110 Cooling water circulation pump 111 Fuel cell 112 Air side Heat exchanger 113 Fuel side heat exchanger 23, 43 Narrow hole 32, 44 Heating means 51 Guide

Claims (8)

A water tank for storing water, a water pumping means for pumping water from the water tank, an ion exchange means for purifying the pumped water, and a fungus contained in the water disposed inside the water tank A water treatment apparatus comprising: a fungus trapping means; and a fuel cell power generator, wherein the condensed water generated in the fuel cell power generator is stored in the water tank after contacting the fungus breeding means. . The fungus capturing means includes an organic matter adsorbing means for adsorbing organic matter contained in water, and the condensed water is stored in the water tank after contacting the organic matter adsorbing means. Item 1. A water treatment apparatus according to item 1. The water treatment apparatus according to claim 2, wherein the organic substance adsorbing means comprises activated carbon. The fungus trapping means has an opening, and the condensed water is stored in a water storage part of a water tank through the opening of the fungus trapping means after contacting the fungus trapping means or the organic matter adsorbing means. The water treatment apparatus according to any one of claims 1 to 3, wherein the water treatment apparatus is characterized. The water treatment apparatus according to claim 4, wherein the opening of the fungus capturing means is composed of a narrow hole whose diameter is smaller than the size of the fungus. The water treatment apparatus according to any one of claims 2 to 5, wherein the fungus capturing unit includes a heating unit that heats the organic substance adsorption unit. The water treatment apparatus according to any one of claims 1 to 6, wherein the fungus capturing means is disposed so as to be removable from a water tank. 8. The water tank according to claim 1, wherein the water tank has a drain outlet at a position lower than a height of the lowest stage of the fungus trapping means for draining the condensed water stored in the water tank. The water treatment apparatus as described.