JP2019062992A - Bathroom washing system and method - Google Patents

Abstract

To prevent a bathroom from being contaminated by eliminating causes responsible for the contamination of the bathroom, and wash the bathroom while reducing time and labor of a user in contamination preventing operations.SOLUTION: A bathroom washing system includes: a supply water spraying process for spraying water supplied from a water supply source 11 in a bathroom 2; a silica removed water spraying process for spraying silica removed water in which a silica component is reduced to a concentration of 0.4 ppm or less from the water supplied from the water supply source 11, in the bathroom 2; and a drying process for drying the bathroom 2.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a bathroom cleaning system and method suitable for realizing contamination prevention in a bathroom by automatically removing dirt adhering to the inner wall, floor, bath, door and the like of the bathroom.

  Continuation of the use of the bathroom will cause the inner wall, floor, bath, door, etc. to become dirty. The first cause of this stain is considered to be a general stain caused by adhesion of sebum, dust, soap and the like. Moreover, the second cause of the contamination is considered to be a stain caused by the presence of dissolved substances such as silica, calcium and magnesium contained in tap water. In particular, when the inside of the bathroom is washed with tap water, the tap water remaining in the bathroom is evaporated, and the above-described dissolved substance causes the appearance of the water stain. Furthermore, the third cause of the contamination is considered to be microorganisms including fungi such as molds and yeasts which are carried into the bathroom by the occupants and the air flow. When mold or the like due to such microorganisms adheres to the inner wall in the bathroom, it becomes a persistent stain that can not be easily removed by rubbing.

  Therefore, in order to remove and clean the stains in the bathroom, it is necessary to remove any of the first to third causes of the stains.

  For this reason, research on a bathroom cleaning system capable of keeping the inside of the bathroom clean by removing such bathroom dirt has been developed. According to the disclosed technology of Patent Document 1, a bathroom cleaning system in which water is sprayed almost all over a bath or washing place in a bathroom, then a detergent is sprayed, and if necessary water is re-sprayed before ventilating the bathroom. Has been proposed.

  However, according to the disclosed technique of Patent Document 1, it is premised that the water droplets remaining after watering are evaporated and dried by ventilation without wiping off. For this reason, when this remaining water droplet evaporates, there is a possibility that a water stain due to the dissolved substance including silica, magnesium and the like contained in the tap water may be exposed and firmly attached to the inner wall or floor in the bathroom. There is. These dissolved substances may be combined with the soap component and remain as a metal soap which is hard to drop off even when rubbed. In particular, in the technology disclosed in Patent Document 1, since it is premised that the cleaning system is operated every time of bathing, the frequency of use is high, and the possibility that the above-mentioned water tank and metal soap are more deposited becomes high.

  In order to remove such stains such as water stains and metal soaps, a paper soaked with an acidic aqueous solution such as acetic acid or citric acid is pasted over the stains, and then covered with a wrap to prevent evaporation of the aqueous solution. It is necessary to improve the dissolution and removability of the soil by leaving it to stand. It is also possible to remove such dirt by polishing using an abrasive. However, there is also a problem that the burden of labor for removing these stains is increased.

  Further, Patent Document 2 discloses a technology of removing dissolved substances such as silica from tap water supplied from a water supply source through a reverse osmosis membrane, and then dispersing it in a bathroom. By spraying water from which such a dissolved substance has been removed, it is expected to suppress the generation of the above-described water tank and metal soap in the bathroom.

  However, in the technology disclosed in Patent Document 2, after the water from which the dissolved substance has been removed is dispersed in the bathroom, it is not particularly dried and only so-called natural drying is performed. I need it. Especially in winter when the temperature is low, the water droplets are difficult to dry, and the bathroom may continue to be damp until the next day's bathing. As a result, there is a possibility that the remaining fungi contained in the water droplets may grow. In particular, in the technology disclosed in Patent Document 2, there is a possibility that such a means for removing fungi in tap water can not be suppressed, and therefore the growth of fungi and the like due to grown fungi can not be suppressed.

  In addition, if the growth of such fungi continues, there is a problem that not only the bathroom can not be decontaminated, but also there is a risk of harming the human body.

Unexamined-Japanese-Patent No. 10-216068 gazette JP, 2009-125500, A

  Therefore, the present invention has been devised in view of the above-mentioned problems, and the purpose thereof is the first cause of stains in a bathroom (general stains due to adhesion of sebum, dust, soap, etc.), In the bathroom by removing all of the second cause (water stains due to dissolved substances such as silica in tap water) and the third cause (microbes etc. carried into the bathroom by the occupants and the air flow) It is an object of the present invention to provide a bathroom cleaning system and method capable of cleaning the inside of a bathroom in a manner that achieves contamination prevention and reduces the burden on the user in performing these processing operations.

  According to a first aspect of the present invention, there is provided a bathroom cleaning system comprising: silica removing water spraying means for spraying silica removing water having a concentration of silica component reduced to 0.4 ppm or less from water supplied from a water supply source; And drying means for drying the inside of the bathroom after spraying by the removing water spraying means.

  In the bathroom cleaning system according to the second aspect of the present invention, in the first aspect, the supply water distribution means for distributing the water supplied from the water supply source into the bathroom before the dispersion of the silica removal water by the silica removal water distribution means. It is characterized by having.

  The bathroom cleaning system according to the third invention is characterized in that, in the first invention or the second invention, the system further comprises a microorganism removing means for suppressing the infiltration of the microorganism from the inside of the bathroom to the silica removing water spraying means.

  A bathroom cleaning system according to a fourth aspect of the present invention is characterized in that, in any one of the first to third aspects, the drying means is dried by blowing air which has been dehumidified in advance.

  In the bathroom cleaning system according to the fifth aspect of the invention, silica removed water in which the concentration of the silica component is reduced to 0.4 ppm or less from the water supplied from the water supply source is sprayed into the bathroom and the silica component is filtered off. Means for separating the residual water from which it is concentrated, residual water application means for applying the residual water into the bathroom, and the application of the residual water application means and the residual water application means after application of the residual water. And drying means for drying the inside of the bathroom, wherein the residual water spraying means sprays the residual water into the bathroom before spraying by the silica removing water spraying means.

  A bathroom cleaning system according to a sixth aspect of the present invention is characterized in that, in the fifth aspect, the residual water dispersion means temporarily stores the residual water and then disperses the residual water in the bathroom.

  A bathroom cleaning method according to a seventh aspect of the present invention is a silica removal water spraying step of spraying silica removed water in which concentration of silica component is reduced to 0.4 ppm or less from water supplied from a water supply source in the bathroom; And drying the inside.

  According to the present invention having the above-described configuration, the silica removing water is sprayed before the sprayed tap water evaporates. As a result, tap water containing dissolved substances such as silica can be washed away by the silica-removed water. For this reason, by washing away the sprinkled tap water, the residual amount of dissolved substances such as silica, calcium, magnesium and the like contained in the tap water can be reduced, and the occurrence of water stains can be suppressed. As a result, it is possible to remove the second cause of water stains through the application of silica removing water. In addition, even if silica removal water evaporates as it is, since the density | concentration of a silica component is reduced to 0.4 ppm or less beforehand, it also prevents that the non volatile matter of the said silica component remains in a bathroom. It becomes possible.

It is a perspective view of a bathroom to which a bathroom cleaning system concerning the present invention is applied. It is a block block diagram of the bathroom washing system to which the present invention is applied. It is a figure which shows the example made into the common spreading part in a feed water dispersion | distribution unit and a silica removal water dispersion | distribution unit, respectively. It is a figure shown about the example which made the shower and the faucet common respectively dispersion means. It is a figure which shows the example which provided the microorganisms removal part in the downstream of the dissolved substance removal part. It is a figure which shows the example which sprays the dry air in a bathroom. It is a figure which shows the example which provided the residual water dispersion | distribution unit in the bathroom washing system which concerns on this invention. It is a figure which shows the other example which provided the residual water dispersion | distribution unit in the bathroom washing system which concerns on this invention. It is a flow chart of experimental verification of a bathroom cleaning system concerning the present invention. It is a figure which shows the experimental result of a blister suppression effect.

  Hereinafter, an embodiment for implementing a bathroom cleaning system to which the present invention is applied will be described in detail with reference to the drawings.

  A bathroom cleaning system to which the present invention is applied is applied to a bathroom 2 shown in FIGS. FIG. 1 is a perspective view of a bathroom 2 and FIG. 2 is a block diagram of a bathroom cleaning system 1.

  The bathroom 2 includes a bath 3 and a washing area 7 adjacent to the bath 3. An inner wall 4 surrounding the bath 3 and the upper space of the washing area 7 to form the bath 2 in the inner space and a ceiling 5 are provided There is. In addition, a shower 8 and a faucet 9 are provided on at least one inner wall 4. Outside the bathroom 2, an operation unit 10 is further provided for the user to control the bathroom cleaning system 1. The ceiling 5 is provided with a first spray unit 16 and a second spray unit 20 in the bathroom cleaning system 1, and a dryer 22 for drying the inside of the bathroom 2 is further provided.

  In addition, the bathroom cleaning system 1 branches the water supply source 11 for supplying tap water and the tap water from the water supply source 11 and guides one to the shower 8 and the faucet 9, and the other to the water supply channel 14. The feed water dispersion unit 17 and the silica-removed water dispersion unit 21 which are connected to the other end of the water supply passage 14 whose one end is connected to the branch unit 12; the supply water dispersion unit 17; and the silica-removed water dispersion unit 21 and a control unit 23 for controlling the dryer 22 respectively. The feed water distribution unit 17 has a control valve 15 to which tap water is supplied from the water supply passage 14, and continues from the outlet side of the control valve 15 to the first distribution unit 16 described above. Further, the silica removal water dispersion unit 21 has a control valve 18 to which tap water is supplied from the water supply path 14 and a dissolved substance removing unit 19 continuous from the control valve 18, and the outlet side of the dissolved substance removing unit 19 From the above to the second spreader 20 described above.

  The control valve 15 is a valve for performing control of water supply or water stop for the tap water supplied from the water supply path 14 based on a control signal from the control unit 23.

  The first spreader 16 is provided with an injection mechanism for spreading tap water having passed through the control valve 15 into the bathroom 2. The first spreader 16 may be provided with jet nozzles so that tap water can be spread over a wide range in each of the bath 3, the washing place 7, the inner wall 4 and the ceiling 5 in the bathroom 2.

  The control valve 18 is a valve for performing control of water supply or shutoff of tap water supplied from the water supply passage 14 based on a control signal from the control unit 23.

  The dissolved substance removing unit 19 is supplied with tap water that has passed through the control valve 15. The dissolved substance removing unit 19 is provided with an ion exchange resin, a reverse osmosis membrane, etc., and separates a specific substance or component. Through the dissolved substance removing unit 19, for example, dissolved substances such as silica, calcium, magnesium and the like can be removed. In the dissolved substance removing unit 19, for example, the concentration of the silica component may be reduced to 0.4 ppm or less. The water which reduced the density | concentration of such a silica component to 0.4 ppm or less is hereafter called silica removal water. The dissolved substance removing unit 19 supplies the silica removing water to the second spraying unit 20.

  The ion exchange resin and the reverse osmosis membrane that constitute the dissolved substance removing unit 19 both differ in the method of removing the dissolved substance, so the components remaining in the silica-removed water are also different. That is, since the ion exchange resin adsorbs the ionized and ionized dissolved substance in water using the ion exchange resin, it is suitable for removing the ionized dissolved substance. On the other hand, reverse osmosis membranes are suitable for removing large-sized dissolved substances and solids, because reverse osmosis membranes are configured to remove dissolved substances that can not permeate through the membrane. The state of the silica component in the aqueous solution may be ionized, but is often dispersed as colloidal particles. In the present invention, a reverse osmosis membrane is more suitable than an ion exchange resin because the purpose is mainly to remove the silica component through the dissolved substance removing portion 19.

  In the case where an ion exchange resin is employed in the dissolved substance removing unit 19, residual chlorine in tap water may deteriorate the ion exchange resin. For this reason, activated carbon (carbon filter or the like) may be installed upstream of the ion exchange resin in the dissolved substance removing unit 19 to remove residual chlorine. On the other hand, when a reverse osmosis membrane is used in the dissolved substance removing portion 19, the reverse osmosis membrane is classified into two types, a material that is degraded by chlorine (polyamide) and a chlorine resistant material (cellulose triacetate). , Replacement of activated carbon becomes unnecessary. This can reduce both the initial cost and the operating cost of the system.

  The method of removing the dissolved substance in the dissolved substance removing unit 19 also includes a method of electrolyzing the supplied tap water. For example, it is known that when aluminum is used for the anode, aluminum hydroxide is formed as a solution of aluminum ions and associated with hydroxide ions generated from the cathode side. Aluminum hydroxide has a strong aggregating action, and it is generally used in the step of adsorbing fine particles and suspended matter in waste liquid and precipitating it in a water purification plant. Since the dissolved substance is adsorbed and precipitated, the dissolved substance is removed from the tap water.

  The second spreader 20 is provided with a spray mechanism for spreading the silica-removed water supplied from the dissolved substance remover 19 into the bathroom 2. The second spray unit 20 may be provided with a jet-type nozzle so that the silica removing water can be sprayed in a wide range to each of the bath 3, the washing place 7, the inner wall 4 and the ceiling 5 in the bathroom 2. .

  The dryer 22 blows hot air into the bathroom 2 under the control of the control unit 23. The dryer 22 sucks in air from the external space and stores the heat, and uses the heat to blow warm air into the bathroom 2 or so-called heat pump system, or generates heat inside and blows the warm air into the bathroom 2 An electric heater system or the like may be adopted. By blowing the warm air from the dryer 22, the water in the bathroom 2 can be evaporated to be dried. In addition, this dryer 22 includes what discharges high humidity air from the inside of bathroom 2 by a ventilation fan.

  The operation unit 10 is configured of an operation panel or a remote controller installed outside the bathroom 2 and is a device capable of transmitting an operation signal to the control unit 23 through wired communication or wireless communication. When the user inputs an instruction to start cleaning in the bathroom 2, the operation unit 10 transmits an operation signal reflecting this to the control unit 23.

  The control unit 23 controls opening / closing of the control valve 15 and the control valve 18 and start / stop of drying by the dryer 22. When the control unit 23 receives an operation signal from the operation unit 10, the control unit 23 performs various controls based on the intention of the user reflected in the operation signal. The control unit 23 may perform these controls based on a program stored in advance, for example, under the control of a CPU (Central Processing Unit). The control unit 23 may control, for example, the opening times of the control valve 15 and the control valve 18 and the drying time of the dryer 22 in time series.

  According to the bathroom cleaning system 1 configured as described above, the tap water sent from the water supply passage 14 can be dispersed as it is into the bathroom 2 through the supply water distribution unit 17. Further, according to the bathroom cleaning system 1, it is possible to disperse the silica-removed water from which the silica component is reduced from the tap water sent from the water supply passage 14 into the bathroom 2 through the silica-removed water dispersion unit 21. Furthermore, according to the bathroom cleaning system 1, the inside of the bathroom 2 can be dried through the dryer 22.

  Next, the cleaning operation in the bathroom 2 by the bathroom cleaning system 1 to which the present invention is applied will be described.

  Since an operation signal is not generated before the user issues an instruction to start cleaning via the operation unit 10 such as while in the bathroom 2, the control valves 15 and 18 are both closed. . For this reason, the tap water supplied from the water supply source 11 is emitted only from the shower 8 and the faucet 9 through the branch part 12. After the user leaves the bathroom 2, an instruction to start cleaning the bathroom is issued via the operation unit 10. When receiving the instruction to start cleaning, the operation unit 10 generates an operation signal reflecting the instruction and transmits the operation signal to the control unit 23. Alternatively, the user may automatically detect the end of the bathroom, generate the above-described operation signal, and transmit the operation signal to the control unit 23 without the operation of the operation unit 10 by the user.

  The control unit 23 receives the operation signal and starts the cleaning process in the bathroom 2. The control unit 23 first performs control for opening the control valve 15. As a result, the tap water from the water supply source 11 passes through the water supply passage 14, passes through the control valve 15, and reaches the first distribution unit 16. By the way, since the cleaning process in the bathroom 2 is started after the user uses the bathroom 2, there are few cases where tap water is branched via the branching portion 12 and emitted from the shower 8 or the like. The tap water that has reached the first spray unit 16 is sprayed into the bathroom 2. The tap water is dispersed throughout the bathroom 2 such as the bathtub 3, the washing place 7, the inner wall 4, the ceiling 5 and the like. Therefore, when the user uses the bathroom 2, sebum, dust, soap and the like adhering to the inner wall 4 and the washing place 7 and the like are removed. As a result, it becomes possible to remove the 1st cause of the stain | pollution | contamination by adhesion of sebum, dust, a soap, etc. through dispersion | distribution of a tap water through this 1st spraying part 16.

  The control unit 23 closes the control valve 15 after continuing the application of the tap water by the first application unit 16 for a predetermined time. Thereby, the spraying of the tap water by the first spraying unit 16 is finished.

  Next, the control unit 23 performs control for opening the control valve 18. As a result, the tap water from the water supply source 11 passes through the water supply passage 14, passes through the control valve 18, and reaches the dissolved substance removing unit 19. The tap water having reached the dissolved substance removing unit 19 has the dissolved substance such as silica removed through an ion exchange resin, a reverse osmosis membrane or the like. At this time, tap water changes to silica-removing water in which the concentration of the silica component is reduced to 0.4 ppm or less. The silica-removed water reaches the second spray unit 20. The silica removal water that has reached the second spray unit 20 is sprayed into the bathroom 2. The silica removing water is dispersed throughout the bathroom 2 such as the bath 3, the washing place 7, the inner wall 4, the ceiling 5 and the like. As a result, the inner wall 4 and the washing place 7 in the bathroom 2 can be washed away through the silica-removed water.

  Since the tap water sprayed earlier by the first spraying unit 16 contains dissolved material such as silica, if it is left after spraying the tap water, it evaporates and dries, and the silica etc. adheres as a starch syrup Resulting in. However, according to the present invention, before the tap water sprayed by the first spraying unit 16 evaporates, silica removing water is sprayed through the second spraying unit 20. As a result, tap water containing dissolved substances such as silica can be washed away by the silica-removed water. For this reason, by washing away the tap water sprayed by the first spraying unit 16, the remaining amount of the dissolved substance such as silica, calcium, magnesium and the like contained in the tap water can be reduced, and the occurrence of water stains can be suppressed. Can. As a result, it is possible to remove the second cause of the contamination due to the water stain through the application of the silica removing water through the second application unit 20. In addition, even if silica removal water evaporates as it is, since the density | concentration of a silica component is beforehand reduced to 0.4 ppm or less, it also prevents that the non volatile matter of the said silica component remains in the bathroom 2, Is possible.

  The control unit 23 closes the control valve 18 after continuing dispersion of the silica-removed water by the second distribution unit 20 for a predetermined time. As a result, the application of the silica removing water by the second application unit 20 is completed.

  Next, the control unit 23 controls the dryer 22 to start drying in the bathroom 2. The dryer 22 can dry the water droplets of the silica-removed water remaining in the bathroom 2. As a result, it is possible to remove the silica removal water earlier than in the case of natural drying, and even if the user baths in the bathroom 2 every day, the microorganisms carried into the bathroom by the occupants and the air flow It is possible to maintain the dry state for a sufficient time to suppress the growth, which in turn makes it possible to suppress the occurrence of mold due to the grown microorganisms, and the third cause of stains (molds based on the microorganisms contained in tap water, etc. ) Can be removed. After continuing the drying by the dryer 22 for a predetermined time, the control unit 23 controls to stop the drying.

  According to the bathroom cleaning system 1 for cleaning the inside of the bathroom 2 based on the above-described operation, the first cause of bathroom dirt (general dirt due to adhesion of sebum, dust, soap etc.), second cause (under tap water) To prevent pollution in the bathroom 2 by removing all of the third cause (such as molds based on the microbes brought into the bathroom by the occupants and the flow of air) by dissolved substances such as silica and the third cause Is possible. Moreover, according to the bathroom cleaning system 1, since the system side can automatically execute all the cleaning operations described above, it is possible to reduce the burden of cleaning effort by the user.

  The dissolved substance removed from water gradually accumulates in the ion exchange resin, reverse osmosis membrane, etc. used in the dissolved substance removing portion 19, which may lead to a decrease in the dissolved substance removing performance. . However, according to the present invention, after a large amount of tap water is sprayed from the first spreading unit 16 and the sebum and soap etc. which are the first cause of the dirt are thoroughly washed away, the tap water is removed from the second spreading unit 20. The second cause may be removed by spraying a small amount of silica-removing water that can only be washed away. Therefore, the amount of the silica removing water to be dispersed can be significantly reduced, so that the amount of the dissolved substance accumulated in the ion exchange resin, the reverse osmosis membrane or the like in the dissolved substance removing unit 19 can be reduced. As a result, the dissolved substance removing performance by the dissolved substance removing unit 19 can be maintained for a long time, and labor for replacing the ion exchange resin, the reverse osmosis membrane, etc. for recovering the dissolved substance removing performance. It is possible to reduce the cost and the effort and cost for maintaining the cleanliness of the bathroom, such as cleaning the bathroom.

  In the present invention, the configuration of the supply water dispersion unit 17 may be omitted. In such a case, the process of spraying the tap water by the feed water spraying unit 17 is omitted, and the process is started from the spraying of the silica-removed water. Even in such a case, the above-described effects can be obtained.

  FIG. 3 shows another embodiment of the bathroom cleaning system 1. In the embodiment shown in FIG. 3, the same components and members as those in the embodiment shown in FIG.

  In the embodiment shown in FIG. 3, the distribution unit 25 is common to the supply water distribution unit 17 and the silica removal water distribution unit 21, and the configurations of the first distribution unit 16 and the second distribution unit 20 are not adopted. That is, the spreader 25 continues from both the control valve 15 and the dissolved substance removing unit 19. When the control valve 15 is in the open state and the control valve 18 is in the closed state, tap water is dispersed from the supply water distribution unit 17 into the bathroom 2 through the distribution unit 25. Further, when the control valve 15 is in the closed state and the control valve 18 is in the open state, the silica-removed water is sprayed from the silica-removed water spray unit 21 into the bathroom 2 through the spray unit 25. Of course, the same effects as described above can be obtained in this configuration as well.

  FIG. 4 shows another embodiment of the bathroom cleaning system 1. In the embodiment shown in FIG. 4, the same components and members as those in the embodiment shown in FIG.

  In the embodiment shown in FIG. 4, the shower 8 and the faucet 9 are respectively used as common spreading means in the feed water spreading unit 17 and the silica removing water spreading unit 21, and the configurations of the first spreading unit 16 and the second spreading unit 20 are not adopted. . The shower 8 and the faucet 9 continue from both the control valve 15 and the dissolved substance removing unit 19. When the control valve 15 is in the open state and the control valve 18 is in the closed state, tap water can be dispersed from the supply water distribution unit 17 through the shower 8 and the faucet 9. By this spraying, it is possible to wash away sebum, soap and the like which are the first cause of stains during bathing by the user and via tap water.

  After the sebum, soap, etc. are washed away with tap water by the shower 8 or the faucet 9, the control unit 23 closes the control valve 15 and opens the control valve 18. As a result, silica removing water is sprayed from the silica removing water spraying unit 21 into the bathroom 2 through the shower 8 or the faucet 9. When the silica removing water is sprayed, the user may manually spray the bath 3, the washing place 7, the inner wall 4, the ceiling 5, etc. by using the shower 8.

  FIG. 5 shows another embodiment of the bathroom cleaning system 1. In the embodiment shown in FIG. 5, the same components and members as those in the embodiment shown in FIG.

  In the embodiment shown in FIG. 5, the microorganism removing unit 24 is provided on the downstream side of the dissolved substance removing unit 19. The microorganism removing unit 24 may be, for example, a microfiltration membrane capable of removing a microorganism, or a sterilizing means using an ultraviolet sterilizing lamp for sterilizing a microorganism, a sterilizing means using a hypochlorous acid generator, or some of them. It is composed of a combination of The second spraying unit 20 described above is located downstream of the microorganism removing unit 24. The microorganism removal unit 24 reduces the content of microorganisms from the silica-removed water flowing down from the dissolved substance removal unit 19, and sends this to the second spray unit 20. The second spray unit 20 sprays the silica-removed water in a state in which the content of the microorganism is reduced. Alternatively, the microorganism removing unit 24 reduces the content of microorganisms that are about to enter the dissolved substance removing unit 19 from the second spreading unit 20. As a result, it is possible to prevent the contamination of the silica-removed water due to the infiltration of microorganisms from the second spray unit 20 into the dissolved substance removal unit 19.

  In the silica-removed water in which the silica component has been reduced by the dissolved substance removal unit 19, in many cases, the chlorine component and the like contained in the tap water for sterilization are also reduced. For this reason, when the silica removal water which such a microbe sterilization function fell is sprayed as it is in the bathroom 2, it becomes impossible to suppress generation | occurence | production of the microorganisms in the water adhering to the inner wall 4 of bathroom 2, or a washing place 7 grade | etc. .

  However, in the embodiment shown in FIG. 5, the content of the microorganism in the silica-removed water is reduced through the microorganism removal unit 24. For this reason, even if silica removing water with such a low microbe content is sprayed, it is possible to suppress the growth of microbes in the water adhering to the inside of the bathroom 2. As a result, it is possible to more effectively remove the third cause of contamination (molds and the like based on microorganisms contained in tap water). In addition, if the growth of microorganisms can be suppressed in the bathroom 2, for example, the occurrence of Legionella bacteria that cause the pneumonia of Legionella can be suppressed, and the onset caused by a person entering the bathroom 2 can be suppressed. It becomes possible. Further, by providing the microorganism removing unit 24, it is possible to stop the contamination of the silica removing water from the spreading unit 20 back to the dissolved substance removing unit 19. As a result, it is possible to suppress the application of the silica-removed water contaminated with the microorganism after this.

  In the embodiment shown in FIG. 6, dry air is blown in the bathroom 2. In such a case, dry air previously dehumidified is produced in the dryer 22 and supplied into the bathroom 2. The dryer 22 may produce dry air, for example, by dehumidifying through a hollow fiber membrane.

  By supplying such dry air from the dryer 22 into the bathroom 2, the dry air is circulated along the inner wall 4 in the bathroom 2 as shown in FIG. As a result, the air around the water droplets adhering to the inside of the bathroom 2 continuously moves to increase the evaporation drying efficiency, and the time required for drying the water droplets is shortened as compared to the drying with a normal ventilating fan. In particular, the dry air circulated in the bathroom 2 is previously adjusted to have a low humidity, and the temperature is high. For this reason, it is possible to further improve the evaporation efficiency of the water in the bathroom 2.

  Further, by increasing the pressure for blowing dry air from the dryer 22 to the inner wall 4 and the washing place 7 and the like, and increasing the discharge amount, it is possible to blow away, wash away or shake off the deposited water droplets, and further evaporate the water droplets. It is possible to significantly reduce the time. As a result, the condition in which the inside of the bathroom 2 is more dry can be further lengthened, which leads to the suppression of the further growth of the microorganisms in the bathroom 2, and the third cause of stains (molds etc. based on the microorganisms contained in tap water) ) Can be removed more effectively. Further, since the time required for drying can be shortened, the cost required for drying can also be reduced.

  FIG. 7 shows another embodiment of the bathroom cleaning system 1. In the embodiment shown in FIG. 7, the same components and members as those in the embodiment shown in FIG.

  In the embodiment shown in FIG. 7, the bathroom cleaning system 1 includes a silica removal water dispersion unit 21 and a residual water dispersion unit 29. The silica removing water spraying unit 21 is provided with a reservoir 27 downstream of the dissolved substance removing unit 19, and further has a silica removing water spraying driving unit 28 installed downstream of the reservoir 27. The second spray unit 20 is provided on the downstream side of 28.

  Further, the residual water dispersion unit 29 dissolves the silica components and the like collected by the dissolved substance removing unit 19 so that residual water having an increased concentration of these components is supplied, and this is dispersed into the bathroom 2 A third scattering unit 30 is provided.

  The water storage unit 27 is configured by a tank or the like for temporarily storing the silica-removed water whose silica component and the like have been reduced by the dissolved substance removal unit 19.

  The silica removal water dispersion drive unit 28 drives the silica removal water stored in the water storage unit 27 to be dispersed from the second spray unit 20. The timing of the dispersing drive of the silica removing water dispersing drive unit 28 is controlled by the control unit 23.

  According to the embodiment shown in FIG. 7, the silica removed through the reverse osmosis membrane in the dissolved substance removing unit 19 in the process of removing the dissolved material such as silica in the dissolved substance removing unit 19 to obtain silica-removing water. The ingredients etc. are dissolved and the residual water with increased concentration of those ingredients is separated. This residual water may be larger in amount than the silica-removed water. The residual water distribution unit 29 distributes the residual water into the bathroom 2 through the third distribution unit 30 in order to effectively utilize such a large amount of residual water. By spraying the residual water, sebum, dust, soap and the like adhering to the inner wall 4 and the washing place 7 can be removed. As a result, it becomes possible to remove the 1st cause of the stain | pollution | contamination by adhesion of sebum, dust, a soap etc. through dispersion | distribution of the remaining water through this 3rd spraying part 30. FIG. That is, in the embodiment shown in FIG. 7, the adhesion of sebum, dust, soap and the like due to the first cause of the dirt is removed through the remaining water instead of the tap water. While such residual water is being sprayed, the silica-removed water is stored in the reservoir 27.

  After the dispersion of the residual water is finished, the silica removal water dispersion drive unit 28 disperses the silica removal water stored in the water storage unit 27 through the second dispersion unit 20. Since the residual water sprayed by the third spray unit 30 contains a dissolved substance such as silica, when left to stand, it evaporates and dries, and the silica and the like adhere as a starch syrup. However, before the residual water evaporates, silica removal water is sprayed through the second spray unit 20. As a result, it is possible to wash away residual water containing dissolved substances such as silica with silica removing water.

  In the embodiment of FIG. 7, the dissolved substance hardly accumulates in the ion exchange resin, reverse osmosis membrane, etc. used in the dissolved substance removing portion 19, and is released by the residual water through the third spreading portion 30. It becomes possible. As a result, it is possible to suppress a decrease in the dissolved substance removal performance due to the accumulation of silica or the like in the dissolved substance removal unit 19. Moreover, in the form of this FIG. 7, the spreading process of a tap water can be skipped by making a residual water play the role of the removal of the 1st cause by a tap water. This makes it possible to reduce the amount of tap water used for cleaning.

  FIG. 8 shows another embodiment of the bathroom cleaning system 1. In the embodiment shown in FIG. 8, the same components and members as those in the embodiment shown in FIG.

  In the embodiment shown in FIG. 8, the water storage unit 31 and the residual water dispersion driving unit 32 are provided inside the residual water dispersion unit 29. The water storage section 31 is supplied with residual water in which the dissolved substance such as the silica component collected by the dissolved substance removing section 19 is concentrated. The water storage unit 31 is configured of a tank that temporarily stores the supplied residual water.

  The residual water dispersion driving unit 32 performs driving for dispersing the residual water stored in the water storage unit 31 from the third scattering unit 30. The control unit 23 controls the timing of the spray driving of the residual water spray driving unit 32.

  According to the form of FIG. 8, the remaining water is temporarily stored in the water storage section 31. Then, the stored residual water is dispersed through the third distribution unit 30 by driving by the remaining water distribution drive unit 32 at the actual distribution timing. By storing the remaining water in the water storage unit 31, it is possible to spout out the remaining water of the amount collected at the time of spraying by the third spraying unit 30 at a stretch. As a result, the amount of residual water to be sprayed can be increased, and the pressure of the water can be increased.

  Hereinafter, the Example of the bathroom washing system 1 to which this invention is applied is described. The experimental verification shown below was performed from a viewpoint of verifying the effect of this invention which consists of a structure mentioned above. FIG. 9 is a flowchart of this experimental verification.

  For experimental verification, a test box of size 500 × 500 × 500 mm was created. The material of the inner surface of this test box was made of acrylic resin used as the inner wall of a common bathroom. Test boxes were prepared for five types of groups A to E.

  In step S10, spraying of contaminants was performed on the inner walls and the bottom of the test boxes of all groups. As a contaminant, assuming that the drainage containing sebum and soap at the time of bathing, a mixture of "hand-washed soap water" with 10 g of glucose for promoting the growth of bacteria is used. The amount sprayed of this contaminant is 100 ml. In addition, after the completion of step S10, the test box of group E was transferred to step S11 and naturally dried as it was.

  Next, the process proceeds to step S12, and after standing for one hour on test boxes of groups A to D sprayed with contaminants, tap water is sprayed. Next, the process proceeds to step S13, and after standing for 30 minutes, 2 liters of tap water is sprinkled on the entire surface of the test boxes of groups A to D.

  With regard to the test boxes of groups A and B, in step S14, 2 liters of tap water was further sprayed to the entire inside of the box. In addition, with regard to the test boxes of groups C and D, in step S15, 2 liters of ion exchanged water was sprinkled to the entire surface of the box. The ion-exchanged water thus sprayed is water from which impurities such as silica and minerals have been removed, and has an electric conductivity of 0.2 μS / cm.

  For the group A, the process proceeds to step S16, and dry air dehumidified is blown into the test box to dry the inside. The group B was transferred to step S17, and left as it is to dry naturally. For the group C, the process proceeds to step S18, and dry air dehumidified is blown into the test box to dry the inside. About group D, it moved to Step S19, left it as it was, and naturally dried.

  For each test box of groups A to E, the first water washing (step S13), the second water washing (steps S14 and S15), and the drying (steps S11 and S16 to S19) are classified in Table 1 below, and organized. doing.

The above-described operation was repeated once a day for 2.5 months for the test boxes of each of the groups A to E. Thereafter, the degree of soiling of the floor and the inner wall of the test box of each group was visually evaluated, and the viable cell count (general bacterial count) in the box was measured. As a method of measuring the number of viable cells, Pro • media ST-25 PBS (wipe test kit) manufactured by Elmex Co., Ltd. is used. Repeat wiping twice. After wiping, return to the container, disperse in the solution, and use this as the 10-fold solution. For each 10-fold test solution, 100-fold solution, 1000-fold solution, 10000-fold solution, 100000-fold solution, 100000-fold solution, and 1,000,000-fold solution, take 1 mL each of each in the petri dish exactly with a sterile pipette, heat and dissolve and keep at around 50 ° C Add Eiken Chemical Pearl Core's standard agar medium, mix gently and allow to cool and coagulate. Take the test solution into a petri dish and within 20 minutes before adding the culture medium. The culture is carried out at a temperature of 35 ° C. for 48 hours. Measure the detected colonies and calculate the number of bacteria per 1 cm ² .
The evaluation criteria of the degree of contamination are shown below.
6: 1/2 or more of the floor and the inner wall are covered with dirt.
5: 1⁄4 to 1⁄2 of the floor and the inner wall are covered with dirt.
4: Less than 1/4 of the floor and the inner wall are covered with dirt.
3: Contamination can be confirmed on part of the floor and the inner wall.
2: Evaporation marks of water can be confirmed on part of the floor and the inner wall.
1: No change from the initial state before the contaminant spraying in step S10.

  Table 2 below shows the evaluation results of the degree of stain by visual observation, and Table 3 shows the number of viable bacteria measured.

  It is suggested from Table 2 that the degree of soiling was significantly improved in group B as compared to group E. Therefore, it was confirmed that the degree of soiling can be greatly improved by watering. Also, the degree of contamination of group A is improved more than that of group B, and the degree of contamination of group C is improved more than group D. Thereby, it was possible to confirm that the degree of soiling can be greatly improved by blowing dry air rather than mere natural drying. In addition, group C had a better degree of contamination than group A. Therefore, it was possible to confirm that the degree of soiling can be improved by spraying ion-exchanged water when blowing dry air.

  As suggested from Table 3, group B was able to reduce the number of microorganisms by water sprinkling, as the viable count was significantly reduced compared to group E. Also, the number of viable bacteria in group A is smaller than that in group B, and the number of viable bacteria in group C is smaller than that of group D. Thereby, it was possible to confirm that the number of viable bacteria is greatly reduced by blowing dry air rather than mere natural drying.

  From the above, in order to improve the degree of soiling and to reduce the number of viable bacteria, it is experimentally verified that it is effective to spray ion-exchanged water after sprinkling tap water and to further dry it with dry air. We were able to.

  The results of experimental verification of the water repellent suppression effect by the silica removal water will be described. In the experiment, silica-removed water was sprayed on the acrylic resin. After that, it is allowed to dry for 60 minutes, and this acrylic resin is repeatedly sprayed and dried with silica removing water again. The application of the silica removing water and the drying are repeated until the constituents of the water are deposited to a visible level on the surface of the sample. In the process of repeating this experiment, the number of repetitions at which a blister was visually confirmed is plotted. Such an experiment was carried out for each of the silica-removed waters having different concentrations of silica.

  Table 4 has shown the experimental result of the blister control effect.

  Moreover, FIG. 10 displays the experimental result of Table 4 on the graph. The horizontal axis is the silica concentration in the silica-free water, and the vertical axis shows the number of repetitions of the silica-free water dispersion and drying. The experiment uses water from which Ca and Mg have been removed by passing it through a reverse osmosis membrane as silica removal water, and the same experiment is conducted for water having the same amount of Ca and Mg as tap water for comparison. ing. The plot in FIG. 10 shows the number of repetitions of the occurrence of blisters. It has been shown that the relationship between the silica concentration and the number of repetitions of blistering is approximately linear. It is also shown that the higher the silica concentration, the smaller the number of repetitions of blistering, and the lower the silica concentration, the higher the number of repetitions of blistering. For this reason, it was suggested that the water-repellent suppression effect becomes high, so that the silica concentration in silica removal water is made low. Above all, if the concentration of the silica component can be reduced to 0.4 ppm or less, it can be seen that the desired number of times of suppressing the water scale can be obtained because the number of repetition of the appearance of the water scale becomes about 25 times. In addition, it is also suggested that the silica-removing water is improved in the water-flour suppressing effect even if the amount of Ca and Mg, which is considered to be the cause of water-flour other than silica, is the same level as tap water.

DESCRIPTION OF SYMBOLS 1 bathroom washing system 2 bathroom 3 bathtub 4 inner wall 5 ceiling 7 washing place 8 shower 9 faucet 10 operation part 11 water supply source 12 branch part 14 water supply passage 15 control valve 16 first scattering part 17 supply water scattering unit 18 control valve 19 dissolved substance Removal unit 20 Second dispersion unit 21 Silica removal water dispersion unit 22 Drying unit 23 Control unit 24 Microbial removal unit 25 Dispersion unit 27 Water storage unit 28 Silica removal water dispersion drive unit 29 Residual water dispersion unit 30 Third dispersion unit 31 Water storage unit 32 Residual water spray drive

Claims (7)

Silica-removing water spraying means for spraying, into the bathroom, silica-removing water in which the concentration of the silica component is reduced to 0.4 ppm or less from the water supplied from the water supply source;
And a drying means for drying the inside of the bathroom after the dispersion by the silica removing water spraying means. The bathroom cleaning system according to claim 1, further comprising: a supply water spraying means for spraying the water supplied from the water supply source into the bathroom before spraying the silica removal water by the silica removal water spraying means. The bathroom cleaning system according to claim 1 or 2, further comprising a microorganism removing means for suppressing the infiltration of microorganisms from the inside of the bathroom to the silica removing water spraying means. The bathroom cleaning system according to any one of claims 1 to 3, wherein the drying means is dried by blowing air which has been dehumidified in advance. While removing the silica removal water which reduced the concentration of the silica component to 0.4 ppm or less from the water supplied from the water supply source into the bathroom, the above silica component is separated by filtration to separate the residual water which is concentrated Silica removal water spraying means,
Residual water spraying means for spraying the residual water into the bathroom;
Drying means for drying the inside of the bathroom after the silica removing water spraying means and the residual water spraying means are sprayed,
The bathroom washing system, wherein the residual water spraying means sprays the residual water into the bathroom before spraying by the silica removing water spraying means. The bathroom cleaning system according to claim 5, wherein the residual water dispersion means temporarily stores the residual water and then disperses the residual water in the bathroom. A silica removing water spraying step of spraying silica removing water in which concentration of a silica component is reduced to 0.4 ppm or less from water supplied from a water supply source in a bathroom;
And d) drying the inside of the bathroom.

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