Water supply system for facility

Abstract

To provide a water supply system for a facility that can promote introduction in preparation for an earthquake.SOLUTION: A water supply system 1 for a facility 2 comprises a pumping pump 4 configured to draw groundwater, a water treatment unit WT configured to treat the groundwater drawn by the pumping pump 4, a receiving tank 11 configured to store treated water treated by the water treatment unit WT, a fifth water supply line 15 configured to supply the treated water stored in the receiving tank 11, and a water vending machine 20 having a reverse osmosis membrane 21 and supplied with the treated water from the fifth water supply line 15. The water vending machine 20 is configured to separate the treated water into permeated water and concentrated water using the reverse osmosis membrane 21 and to provide the separated permeated water.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a facility's water supply system. [Background technology]

[0002] For example, Patent Document 1 discloses a water purification device that produces drinking water from groundwater or the like. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 10-118635 Summary of the Invention [Problem to be solved by the invention]

[0004] However, when an earthquake occurs, the water supply may be cut off. To prepare for this, it is desirable to install water supply systems that use groundwater in public facilities and other facilities, but the problem is that such systems have not been introduced very often.

[0005] The present invention has been made in view of the above points, and an object of the present invention is to provide a water supply system for facilities that can be promoted for installation in preparation for earthquakes. [Means for solving the problem]

[0006] In order to achieve the above-mentioned object, the present invention is a water supply system for a facility, comprising: a water intake section that takes in groundwater; a water treatment section that treats the groundwater taken by the water intake section; a water tank that stores treated water that has been treated in the water treatment section; a first supply path section that can supply the treated water stored in the water tank; and a water vending machine that has a reverse osmosis membrane and to which the treated water is supplied from the first supply path section, wherein the water vending machine is configured to separate the treated water into permeate and concentrated water using the reverse osmosis membrane and to provide the separated permeate.

[0007] According to the present invention configured as described above, groundwater taken in by the water intake unit is treated in the water treatment unit to produce treated water, which is then stored in the water tank. The treated water stored in the water tank is supplied to the water vending machine through the first supply path unit, where it is separated into permeate and concentrated water using a reverse osmosis membrane. For example, during normal times when no earthquake has occurred, the permeate water can be provided to facility users for a fee, allowing facility operators to earn revenue from the water vending machine. This makes it possible to encourage the introduction of groundwater-based water supply systems into facilities in preparation for earthquakes.

[0008] In the present invention, preferably, the water vending machine further includes a carbonated water generating unit capable of generating carbonated water by mixing the permeated water with carbon dioxide gas, and is configured to provide the carbonated water generated in the carbonated water generating unit.

[0009] According to the present invention configured in this manner, for example, carbonated water can be provided to facility users for a fee, allowing facility operators to earn revenue from the water vending machine.

[0010] In the present invention, preferably, the water vending machine further includes a mineral carbonated water generating unit capable of mixing the carbonated water with mineral components to generate mineral carbonated water, and is configured to provide the mineral carbonated water generated in the mineral carbonated water generating unit.

[0011] According to the present invention configured in this manner, for example, mineral carbonated water can be provided to facility users for a fee, allowing facility operators to earn revenue from the water vending machine.

[0012] In the present invention, preferably, the water vending machine further comprises a mineral water production unit capable of producing mineral water by mixing the permeate with mineral components, and is configured to provide the mineral water produced in the mineral water production unit.

[0013] According to the present invention configured in this manner, for example, mineral water can be provided to facility users for a fee, allowing facility operators to earn revenue from the water vending machine.

[0014] In the present invention, preferably, the water treatment system further includes a second supply path portion capable of supplying the treated water stored in the water tank, and equipment to which the treated water is supplied from the second supply path portion.

[0015] According to the present invention configured in this manner, treated water is supplied to the equipment from the second supply path section during normal times when no earthquake has occurred. This allows the equipment to use the treated water as general-purpose water. Therefore, for example, if the facility is equipped with a water supply system, it is possible to reduce the amount of tap water used, thereby reducing the cost of tap water.

[0016] In the present invention, preferably, the downstream portion of the second supply path portion is branched, one of the downstream portions of the second supply path portion being connected to the equipment, and the other of the downstream portions of the second supply path portion being connected to the utility water supply port portion.

[0017] According to the present invention configured as described above, if the water supply is interrupted by an earthquake, treated water can be provided to local residents of the facility as miscellaneous water from the miscellaneous water supply outlet. Furthermore, because the other downstream portion of the branched second supply line is connected to the miscellaneous water supply outlet, there is no need to provide a separate supply line dedicated to the miscellaneous water supply outlet. This reduces the installation costs of the facility's water supply system. [Effects of the Invention]

[0018] This will encourage the introduction of groundwater-based water supply systems into facilities in preparation for earthquakes. [Brief explanation of the drawings]

[0019] [Figure 1]1 is a schematic block diagram showing a water supply system for a facility according to a first embodiment of the present invention. [Figure 2] FIG. 6 is a schematic block diagram showing a water supply system for a facility according to a second embodiment of the present invention. [Figure 3] FIG. 10 is a schematic block diagram illustrating the flow of water in a water vending machine according to a second embodiment of the present invention. [Figure 4] FIG. 10 is a block diagram showing a part of the control of the water supply system for the facility according to the second embodiment of the present invention. [Figure 5] FIG. 10 is a front view showing the schematic structure of a water vending machine according to a second embodiment of the present invention. [Figure 6] FIG. 10 is a plan view showing the schematic internal structure of a water vending machine according to a second embodiment of the present invention with the opening and closing door open. [Figure 7] FIG. 10 is a block diagram similar to FIG. 3, according to a third embodiment of the present invention. [Figure 8] FIG. 10 is a block diagram similar to FIG. 3, relating to a modified example of the third embodiment of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0020] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that the following description of the preferred embodiments is merely exemplary in nature.

[0021] (First embodiment) 1 shows a water supply system 1 for a facility 2 according to a first embodiment of the present invention. The water supply system 1 is a system that supplies water to the facility 2. The facility 2 is, for example, a government office, a school, a community center, a gymnasium, a stadium, a museum, an art gallery, a library, a hospital, a police station, a fire station, a movie theater, a convenience store, a supermarket, a gas station, a roadside rest facility, or the like.

[0022] A well 3 is provided around the facility 2. A water pump 4 is provided near the bottom of the well 3 to take in (pump) groundwater (well water), which is raw water, from the well 3. The water pump 4 is, for example, an electric submersible pump.

[0023] The pumping pump 4 is connected to the upstream end of the first water supply line 5. This allows the groundwater from the well 3 pumped up by the pumping pump 4 to flow into the first water supply line 5. The arrows in Figure 1 indicate the direction in which liquids such as water flow.

[0024] The downstream end of a chlorine injection channel 6 is connected to a midpoint of the first water supply channel 5. A chlorine tank 7 and a chlorine injection pump 8 are provided in the upstream portion of the chlorine injection channel 6. When the chlorine injection pump 8 is driven, for example, by an electric motor, a liquid chlorine component (for example, a chlorine component such as a sodium hypochlorite aqueous solution) stored in the chlorine tank 7 flows through the chlorine injection channel 6 into the first water supply channel 5. As a result, the chlorine component is injected into the groundwater flowing through the first water supply channel 5, and the groundwater is disinfected with chlorine.

[0025] A filtration device 9 for filtering groundwater is connected to the downstream end of the first water supply passage 5. The filtration device 9 is, for example, an iron and manganese removal device capable of removing iron and manganese from groundwater.

[0026] In the first embodiment, the water treatment device WT is made up of the chlorine injection line 6, the chlorine tank 7, the chlorine injection pump 8, and the filtration device 9. The water treatment device WT is configured to inject chlorine components from the chlorine tank 7 into groundwater taken in by the lifting pump 4 to disinfect the groundwater by chlorination, and to treat the water by filtering the chlorinated groundwater in the filtration device 9. In this way, the water treatment device WT treats the groundwater to produce first treated water.

[0027] The filtration device 9 is connected to the upstream end of the second water supply passage 10. This allows the first treated water to flow from the filtration device 9 into the second water supply passage 10.

[0028] The downstream end of the second water supply passage 10 is connected to the water receiving tank 11. As a result, the first treated water in the second water supply passage 10 flows into the water receiving tank 11 and is stored in the water receiving tank 11.

[0029] The downstream end of the third water supply passage 12 is connected to the water receiving tank 11. The upstream end of the third water supply passage 12 is connected to a waterworks pipe 13. This allows backup tap water to flow into the water receiving tank 11 from the waterworks pipe 13. In the first embodiment, the water receiving tank 11 is configured to store second treated water, which is a mixture of first treated water from the second water supply passage 10 and tap water from the third water supply passage 12. When tap water is not supplied from the waterworks pipe 13, the water receiving tank 11 is configured to store the first treated water.

[0030] In addition, the upstream end of a fourth water supply passage 14 is connected to the water receiving tank 11. This allows the treated water (first treated water or second treated water) stored in the water receiving tank 11 to flow into the fourth water supply passage 14.

[0031] The downstream end of the fourth water supply passage 14 is connected to the upstream end of the fifth water supply passage 15 and the upstream end of the sixth water supply passage 16. In other words, the fourth water supply passage 14 branches into the fifth water supply passage 15 and the sixth water supply passage 16.

[0032] The downstream portion of the sixth water supply passage 16 is branched. In the first embodiment, the downstream portion of the sixth water supply passage 16 is branched into two.

[0033] Further, the fourth water supply passage 14 is provided with a water supply pump 17. When the water supply pump 17 is driven by, for example, an electric motor, the treated water flowing through the fourth water supply passage 14 (the first treated water or the second treated water stored in the water receiving tank 11) is supplied to the fifth water supply passage 15 and the sixth water supply passage 16 because the fifth water supply passage 15 and the sixth water supply passage 16 are connected to the water receiving tank 11 via the fourth water supply passage 14.

[0034] The downstream end of the fifth water supply passage 15 is connected to a water vending machine 20 provided in the facility 2. As a result, treated water (first treated water or second treated water) is supplied to the water vending machine 20. In the first embodiment, the water vending machine 20 is installed inside (indoors) the building of the facility 2.

[0035] The water vending machine 20 includes a reverse osmosis membrane 21 (RO membrane), a carbonated water generator 22, a mineral water generator 23, and a water supply box 24.

[0036] The reverse osmosis membrane 21 is capable of separating the treated water (first treated water or second treated water) supplied to the water vending machine 20 from the fifth water supply line 15 into permeate and concentrate. The separated permeate is provided to users of the facility 2. On the other hand, the separated concentrate is discharged from the water vending machine 20.

[0037] Carbonated water generator 22 is capable of generating carbonated water by mixing permeated water separated using reverse osmosis membrane 21 with carbon dioxide gas. The carbonated water generated in carbonated water generator 22 is configured to be provided to users of facility 2. In the first embodiment, carbonated water generator 22 includes a mixer (not shown) and a gas cylinder (not shown) for storing carbon dioxide gas. Carbonated water is generated by mixing permeated water cooled to a predetermined temperature or lower in the mixer (not shown) with carbon dioxide gas supplied from the gas cylinder (not shown).

[0038] The mineral water production unit 23 is capable of producing mineral water by mixing the permeate separated by the reverse osmosis membrane 21 with mineral components, and of producing carbonated mineral water by mixing the carbonated water produced in the carbonated water production unit 22 with mineral components. The mineral water and carbonated mineral water produced in the mineral water production unit 23 are configured to be provided to users of the facility 2. In the first embodiment, the mineral water production unit 23 includes a mineral liquid tank (not shown) for storing mineral liquid, and is configured to produce mineral water or carbonated mineral water by mixing the mineral liquid in the mineral liquid tank with the permeate or carbonated water. Note that the hardness of the mineral water or carbonated mineral water can be changed by controlling the amount of mineral liquid mixed with the permeate or carbonated water.

[0039] The water supply box 24 has an openable door (not shown), and by opening the door (not shown), it is possible to set a container (not shown) (e.g., a bottle with a capacity of 300 milliliters, 500 milliliters, 1 liter, 2 liters, 5 liters, or 8 liters) in the water supply box 24. The container (not shown) set in the water supply box 24 is supplied with water (permeated water, carbonated water, mineral water, or mineral carbonated water) selected by a user of the facility 2. When the supply of water to the container (not shown) set in the water supply box 24 is complete, the user of the facility 2 can open the door (not shown) and remove the container (not shown) from the water supply box 24. In the first embodiment, the water vending machine 20 is configured to provide permeated water (room temperature water) and mineral water at room temperature (e.g., 15°C to 30°C), and to provide permeated water (cold water), carbonated water, and mineral carbonated water at a temperature lower than room temperature (e.g., below 15°C).

[0040] The water vending machine 20 is configured to provide (sell) permeate water, carbonated water, mineral water, and mineral carbonated water for a fee to users of the facility 2 (users, customers, staff, or employees of the facility 2, etc.). Therefore, the operator of the facility 2 (for example, the operator who operates the facility 2, the manager who manages the facility 2, or the business operator who operates the facility 2, etc.) can earn revenue by selling the permeate water, carbonated mineral water, and mineral carbonated water.

[0041] One downstream portion of the sixth water supply passage 16 is connected to the equipment 30. As a result, treated water (first treated water or second treated water) is supplied to the equipment 30 as miscellaneous water. In the first embodiment, the equipment 30 includes equipment provided indoors in the facility 2 and equipment provided outdoors in the facility 2 (for example, equipment provided outdoors in the facility 2 within a predetermined site operated and managed by an operator of the facility 2, etc.). Note that FIG. 1 shows an example in which the equipment 30 is provided indoors in the facility 2.

[0042] The facility 30 is at least one of a toilet, a water sprinkler facility, a water feature, a hydrophilic facility, a cultivation facility, and a cleaning facility.

[0043] The toilet is a flush toilet that can be used by users of facility 2. The treated water (first treated water or second treated water) supplied to the toilet as miscellaneous water is used as flush water for the flush toilet.

[0044] The sprinkler equipment is, for example, equipment such as a sprinkler tap, a sprinkler, or a sprinkler head. The treated water (first treated water or second treated water) supplied to the sprinkler equipment as utility water is used as sprinkler water (for example, water for watering lawns, grounds, and plants, or water for firefighting in facility 2).

[0045] The water feature is, for example, a fountain, an artificial waterfall, an artificial mountain stream, etc. The treated water (first treated water or second treated water) supplied to the water feature as miscellaneous water is intended to be used as water for the water feature.

[0046] The hydrophilic facility is, for example, a fountain where people can splash around in water, a waterway, a pond, or a facility capable of spraying mist. The treated water (first treated water or second treated water) supplied to the hydrophilic facility as miscellaneous water is intended to be used as hydrophilic water.

[0047] The cultivation facility is a facility for cultivating, for example, vegetables, fruits, plants, etc. The treated water (first treated water or second treated water) supplied to the cultivation facility is used as cultivation water.

[0048] The cleaning equipment is, for example, equipment such as a cleaning faucet, etc. The treated water (first treated water or second treated water) supplied to the cleaning equipment is used as cleaning water.

[0049] The other downstream portion of the sixth water supply passage 16 is connected to an outlet faucet (miscellaneous water supply port) 40. This makes it possible to supply treated water (first treated water or second treated water) as miscellaneous water from the outlet faucet 40 to local residents of the facility 2, etc. In the first embodiment, two outlet faucets 40 are provided outside the facility 2.

[0050] The facility 2 also includes a power generation facility 50. The power generation facility 50 may be, for example, an engine-driven generator, a solar power generation system, a wind power generation system, or an emergency private power generation system. The power generation facility 50 is capable of supplying the generated electricity to the water pump 4, the chlorine injection pump 8, the filtration device 9, the water supply pump 17, and the water vending machine 20. This allows the facility 2 to continue providing drinking water (permeate water, carbonated water, mineral water, and mineral carbonated water) and general service water, even in the event of a power outage due to an earthquake, for example.

[0051] As described above, according to the first embodiment, groundwater taken in by the pumping pump 4 is treated in the water treatment unit WT to produce first treated water, which is then stored in the receiving tank 11. The first treated water or second treated water stored in the receiving tank 11 is supplied to the water vending machine 20 through the fifth water supply line 15, where it is separated into permeate and concentrated water using the reverse osmosis membrane 21. Then, for example, during normal times when no earthquake has occurred, the permeate is provided to users of the facility 2 for a fee, allowing the operator of the facility 2 to earn revenue from the water vending machine 20. Therefore, it is possible to encourage the introduction of a water supply system 1 using groundwater into the facility 2 in preparation for an earthquake.

[0052] In addition, in the event of an earthquake, the permeated water can be provided as drinking water from the water vending machine 20 to local residents around the facility 2.

[0053] Furthermore, for example, carbonated water may be provided to users of the facility 2 for a fee, allowing the operator of the facility 2 to earn revenue from the water vending machine 20.

[0054] Furthermore, for example, mineral carbonated water may be provided to users of the facility 2 for a fee, allowing the operator of the facility 2 to earn revenue from the water vending machine 20.

[0055] Furthermore, for example, mineral water may be provided to users of the facility 2 for a fee, allowing the operator of the facility 2 to earn revenue from the water vending machine 20.

[0056] Furthermore, during normal times when no earthquake has occurred, the first treated water or the second treated water is supplied to the facility 30 from the sixth water supply channel 16. This allows the first treated water or the second treated water to be used as general service water in the facility 30. Therefore, for example, if the facility 2 is equipped with a water supply system, it is possible to reduce the amount of tap water used, thereby reducing the cost required for tap water. Furthermore, if the facility 30 is a toilet supplied with the first treated water or the second treated water from the sixth water supply channel 16, the toilet can be opened in the event of an earthquake, thereby providing a flush toilet to local residents of the facility 2.

[0057] Furthermore, in the event of a water outage due to an earthquake, the first treated water or the second treated water can be provided from the outlet tap 40 to local residents of the facility 2 as miscellaneous water.

[0058] In addition, since the other downstream portion of the branched sixth water supply line 16 is connected to the outlet water tap 40, there is no need to provide a separate supply line section dedicated to the outlet water tap 40. This makes it possible to reduce the introduction cost of the water supply system 1 for the facility 2.

[0059] Furthermore, since the water vending machine 20 can remove impurities using the reverse osmosis membrane 21, it is preferable to use it not only in the event of an earthquake disaster but also on a daily basis for safety reasons.

[0060] Furthermore, during normal times when no earthquake has occurred, the use of well water (groundwater) can be used to reduce costs, and the water service provided to customers (users of facility 2) by the water vending machine 20 can be expected to attract customers. Furthermore, when an earthquake occurs and the water supply is cut off, the water vending machine 20 can provide life-saving drinking water (permeate water, etc.), as well as provide water for general use to local residents and open toilets. The above-mentioned benefits of installation can promote the installation of the water supply system 1 in facility 2.

[0061] (Second embodiment) A water supply system 1 for a facility 2 according to a second embodiment of the present invention will be described with reference to Figs. 2 to 6. Fig. 2 is a schematic block diagram showing the water supply system 1 for a facility 2 according to the second embodiment. Fig. 3 is a schematic block diagram explaining the flow of water in a water vending machine 20. Fig. 4 is a block diagram showing part of the control of the water supply system 1. Fig. 5 is a front view showing the general structure of the water vending machine 20. Fig. 6 is a plan view showing the general internal structure of the water vending machine 20 with the opening / closing door 53 open.

[0062] In the second embodiment, the differences from the first embodiment will be mainly described, and the description of the same parts will be omitted as appropriate. The second embodiment differs from the first embodiment in the part downstream of the water pump 17, so the part downstream of the water pump 17 will be described.

[0063] As shown in Figure 2, the upstream end of fifth water supply channel 15 is connected to water pump 17, and the downstream end of fifth water supply channel 15 is connected to water vending machine 20 provided in facility 2. Treated water passing through fourth water supply channel (third supply channel section) 14 is sent to water vending machine 20 via fifth water supply channel (first supply channel section) 15 by water pump 17. The upstream end of sixth water supply channel (second supply channel section) 16 is connected to the middle of fifth water supply channel 15, and the downstream end of sixth water supply channel 16 is connected to equipment 30 provided in facility 2 and an outlet faucet (miscellaneous water supply port) 40 provided outside the facility. Treated water passing through sixth water supply channel 16 is sent to equipment 30 and outlet faucet 40, respectively.

[0064] In the second embodiment, the water vending machine 20 is installed inside (indoors) a building of the facility 2, similar to the first embodiment. As shown in Figures 2 and 3, the water vending machine 20 includes a reverse osmosis membrane (RO membrane) 21, a mineral water production unit (carbonated mineral water production section) 23, a water supply box 24, and a carbonated water production unit 25. Furthermore, the water vending machine 20 includes a switching section 31, an operation panel (operation section) 32, an authentication section 33, an inlet 34, and a remote control receiving section 39. The carbonated water production unit 25 includes a cooling water production section 26 and a carbonated water production section 22.

[0065] Arrows in FIG. 2 indicate the direction of flow of liquids such as water. Dotted lines indicate electrical connections. The control unit 35 is electrically connected to the water vending machine 20, the equipment 30 of the facility 2, the power generation equipment 50, and other components, and controls their operation. The control unit 35 is also electrically connected to pumps such as the water lift pump 4, the chlorine injection pump 8, the water supply pump (pump unit) 17, and the mineral injection pump (not shown). The control unit 35 is also electrically connected to valves 41 and other components provided in the third water supply channel 12, the fifth water supply channel 15, the sixth water supply channel 16a, and the sixth water supply channel 16b, and controls the opening and closing and adjusting the opening degree of each valve 41. The control unit 35 is also electrically connected to a detection unit 36 ​​that detects emergencies such as earthquakes, and receives signals from the detection unit 36. The detection unit 36 ​​is electrically connected to a pressure gauge 38 that detects the water pressure of the water supply system, and receives signals from the pressure gauge 38.

[0066] The water vending machine 20 will be described in further detail with reference to Figures 3 and 4. As shown in Figure 3, the reverse osmosis membrane 21 is configured to separate treated water supplied to the water vending machine 20 from the fifth water supply channel 15 into permeate and concentrated water. Specifically, the separated concentrated water passes through the first concentrated water channel 29a and is stored in the concentrated water storage unit 29, and is then drained through the second concentrated water channel 29b. Although not shown, the second concentrated water channel 29b is provided with a control valve electrically connected to the control unit 35, and the presence and amount of concentrated water drained through the second concentrated water channel 29b is controlled by the control unit 35. Therefore, in relation to the claims, the second concentrated water channel 29b and the control valves provided in the second concentrated water channel 29b in this embodiment correspond to the "concentrated water supply unit that supplies concentrated water stored in the concentrated water storage unit" of the present invention.

[0067] Meanwhile, the separated permeated water is provided to users of the facility 2 through the 5a water supply channel 15a, the permeated water supply channel 19, etc. More specifically, as described above, the carbonated water production unit 25 of the water vending machine 20 includes the cooling water production section 26 and the carbonated water production section 22, and the cooling water production section 26 includes the first cooling water production section 26a and the second cooling water production section 26b that cool the permeated water to a predetermined temperature or below. The water vending machine 20 is also provided with a water supply channel 18 that supplies various types of permeated water to the water supply box 24, and the various types of permeated water flow through the water supply channel 18 and are sent to the water supply box 24, and are supplied from a spout (not shown) of the water supply box 24 to a container contained in the water supply box 24, where they are provided to users, etc. The permeated water separated by the reverse osmosis membrane 21 is supplied to the water supply box 24 through four paths: from the carbonated water production unit 22 to the water supply channel 18, from the second cooling water production unit 26b to the water supply channel 18, from the mineral water production unit 23 to the water supply channel 18, and from the permeated water supply channel 19 directly to the water supply channel 18. The water supply channel 18, the permeated water supply channel 19, the 5d water supply channel 15d connecting the second cooling water production unit 26b to the water supply channel 18, and the mineral water channel 23a connecting the mineral water production unit 23 to the water supply channel 18 are provided with control valves (not shown) electrically connected to the control unit 35, and it is possible to control from which of the carbonated water production unit 22, the second cooling water production unit 26b, the mineral water production unit 23, and the reverse osmosis membrane 21 the permeated water is supplied to the water supply channel 18 according to a user's selection, as will be described later.

[0068] A portion of the permeate separated by the reverse osmosis membrane 21 is supplied to the carbonated water production unit 25 through the 5a water supply passage 15a and the 5b water supply passage 15b. The permeate that passes through the 5a water supply passage 15a is supplied to the first cooling water production unit 26a and cooled, while the permeate that passes through the 5b water supply passage 15b is supplied to the second cooling water production unit 26b and cooled. The permeate cooled to a predetermined temperature or lower in the first cooling water production unit 26a flows through the 5c water supply passage 15c and is sent to the carbonated water production unit 22. A gas cylinder 28 is connected to the carbonated water production unit 22 through a gas passage 28a, and carbon dioxide gas from the gas cylinder 28 is supplied to the carbonated water production unit 22. The cooled permeate and carbon dioxide gas are mixed in the carbonated water production unit 22 to produce carbonated water. The produced carbonated water flows through the water supply passage 18 and is sent to the water supply box 24, where it is provided to users, etc. In relation to the claims, the water supply passage 18 of this embodiment and the control valve provided in the water supply passage 18 correspond to the "carbonated water supply unit that supplies carbonated water from the water generation unit to the water supply box" of the present invention.

[0069] In contrast, if the user selects simply cooled permeate water rather than carbonated water, no carbonated water is supplied from the carbonated water generation unit 22, and permeate water cooled to a predetermined temperature or below in the second cooling water generation unit 26b is supplied from the 5d water supply line 15d through the water supply line 18 to the water supply box 24.

[0070] Meanwhile, the remainder of the permeate separated by the reverse osmosis membrane 21 is supplied to the permeate supply channel 19 in an uncooled, room-temperature state. The permeate supply channel 19 has a first permeate supply channel 19a and second and third permeate supply channels 19b and 19c branching from the first permeate supply channel 19a. The second permeate supply channel 19b branching from the first permeate supply channel 19a is connected to the mineral water production unit 23, so that the room-temperature permeate is supplied to the mineral water production unit 23. A mineral liquid tank 27 is connected to the mineral water production unit 23 via the mineral liquid supply channel 27a. The permeate that has passed through the second permeate supply channel 19b and the mineral liquid that has passed through the mineral liquid supply channel 27a are mixed in the mineral water production unit 23 to produce room-temperature mineral water. The mineral water production unit 23 is connected to the water supply channel 18 via the mineral water channel 23a, and mineral water is supplied from the water supply channel 18 to the water supply box 24. The mineral water produced in the mineral water production unit 23 is supplied to the water supply channel 18. This makes it possible to produce carbonated water containing mineral water (mineral carbonated water) by adding it to carbonated water produced in the carbonated water production unit 25 and passing through the water supply channel 18. Furthermore, even when only permeated water cooled in the second cooling water production unit 26b flows through the water supply channel 18, it is possible to add mineral water to produce permeated water containing cooled mineral water. In this way, mineral water and mineral carbonated water are configured to be provided to users of the facility 2, etc.

[0071] The hardness of the mineral water or carbonated mineral water can be changed by controlling the amount of mineral liquid mixed with the permeated water or carbonated water. While the mineral liquid that has passed through the mineral liquid supply path 27a is mixed with the permeated water that has passed through the second permeated water supply path 19b in the mineral water production unit 23 to produce mineral water, it is also possible to produce permeated water or carbonated water containing mineral water by stopping the permeated water that has passed through the second permeated water supply path 19b or by eliminating the second permeated water supply path 19b and directly mixing the mineral liquid from the mineral tank into the water supply path 18. Furthermore, the room-temperature mineral water produced in the mineral water production unit 23 or the mineral liquid from the mineral tank may be directly sent to the third permeated water supply path 19c, and this mineral water may be provided to a separate water supply box 241.

[0072] Furthermore, if a user selects room temperature permeate water that does not contain mineral water, the permeate water that has passed through the third permeate water supply line 19c of the permeate water supply line 19 is supplied to the water supply line 18, and the room temperature permeate water that does not contain mineral water is provided to users of the facility 2 from the water supply box 24.

[0073] As shown by dotted lines in FIG. 4 , the switching unit 31, operation panel 32, authentication unit 33, inlet 34, detection unit 36, pressure gauge 38, and remote control receiver 39 are electrically connected to the control unit 35. The switching unit 31 is a selector switch that switches the water vending machine 20 between a paid water supply state, in which various permeate waters are supplied from the water supply box 24 to a container for a fee, and a free water supply state, in which water is supplied free of charge. The detection unit 36 ​​detects when water for daily use is unavailable due to a disaster such as an earthquake, tsunami, or landslide. The detection unit 36 ​​outputs a signal to the control unit 35 when it detects an emergency based on information from the pressure gauge 38. The detection unit 36 ​​is configured to recognize (detect) an emergency when the water pressure in the third water supply line 12 of the waterworks pipe 13, detected by the pressure gauge 38, drops below a predetermined value. Note that a flow meter may be used instead of the pressure gauge 38. Alternatively, both the pressure gauge 38 and a flow meter may be provided. In this embodiment, the pressure gauge 38 is used to detect emergencies, but it is not limited to a pressure gauge as long as it can detect situations in which a natural disaster such as an earthquake, tsunami, flood, or landslide occurs, causing the water supply to be cut off and creating an urgent need for drinking water, etc.

[0074] The schematic structure and layout of the water vending machine 20 will be described with reference to Figures 5 and 6. For ease of explanation, in Figures 5 and 6, the front side (front) of the device main body 51 is designated by the symbol F, the rear side (rear) of the device main body 51 is designated by the symbol B, one side in the width direction (left side) of the device main body 51 is designated by the symbol L, the other side in the width direction (right side) of the device main body 51 is designated by the symbol R, the upper side (upper) of the device main body 51 is designated by the symbol U, and the lower side (lower) of the device main body 51 is designated by the symbol D. Note that to avoid complication of the drawings, Figures 5 and 6 have omitted illustrations of piping, wiring, etc. connecting the carbonated water production unit 22, mineral water production unit 23, cooling water production unit 26, and gas cylinder 28 to the device main body 51, circuit board 54, and power supply unit 55, as appropriate.

[0075] 5, carbonated water making unit 25 has a rectangular parallelepiped housing and is arranged in a row directly below rectangular parallelepiped device main body 51. Gas cylinder 28 is arranged to the left of carbonated water making unit 25 and device main body 51.

[0076] As shown in Figures 5 and 6, an opening / closing door 53 is provided on the front side F of the device body 51, and the opening / closing door 53 opens and closes the front side F of the device body 51. As shown in Figure 5, a water supply box 24, which is a box that defines a rectangular parallelepiped space, is attached to the middle of the opening / closing door 53 of the device body 51 in the vertical direction. The water supply box 24 is attached at a position offset to the right side R from the center of the front side F in the horizontal direction.

[0077] An operation panel 32 made up of a touch panel is attached above the water supply box 24, U, in the center in the left-right direction from the right side R area. An authentication unit 33 is provided to the left L of the operation panel 32, and an inlet 34 is provided to the left L of the water supply box 24. A control unit 35 is attached to the opening and closing door 53 at a position behind the authentication unit 33 and inlet 34.

[0078] Operation panel 32 is, for example, a touch panel that displays information related to the operating status of water vending machine 20, as well as information read by authentication unit 33. Here, information related to the operating status of water vending machine 20 includes, for example, standby, producing carbonated water, filling carbonated water, as well as the stop of carbonated water production (including, as an example, the suspension of sales), etc.

[0079] The user can also select the type of water (permeated water or carbonated water), whether it is cooled water or room temperature water, and the hardness (the amount of mineral liquid to be mixed into the permeated water or the first carbonated water) by touch operation. By operating (touching) a predetermined screen displayed on the operation panel 32, the user can select cooled carbonated water flowing through the water supply path 18, select cooled water (cooled water that does not contain carbon dioxide) flowing through the 5d water supply path 15d, or select cooled water that has been mixed with both to adjust the carbon dioxide concentration to the desired concentration.

[0080] The authentication unit 33 is a reader that can read magnetic cards, barcodes, etc. An insertion slot 34 is provided below the authentication unit 33. For example, a user can purchase carbonated water by inserting an amount equivalent to the price of the carbonated water into the insertion slot 34. The control unit 35 uses the operation panel 32, authentication unit 33, and input port 34 as interfaces, and electrically controls the operation of each unit and pump shown in the block diagrams of FIGS. 2 and 4, and the opening and closing of each valve.

[0081] As shown in FIG. 6 , a circuit board 54 and a power supply unit 55 are disposed inside the device main body 51, above the water supply box 24 in a section U. The circuit board 54 is disposed at the rear end inside the device main body 51. The power supply unit 55 is disposed at the rightmost side inside the device main body 51. Electric power for operating the water vending machine 20 is supplied to the power supply unit 55 from an external source. The circuit board 54 distributes power to each part of the water vending machine 20.

[0082] The water supply box 24 has a storage section (not shown) inside that can store a container (not shown) such as a PET bottle with a capacity of, for example, 1 L or 0.5 L. The water supply box 24 has a spout (not shown) for supplying water to the container located at the upper side of the storage section. The water supply box 24 is provided with a lid 24a that can be opened and closed when the container is put in and taken out of the storage section. The lid 24a may be controllable so that it can be opened and closed when putting in and taking out the container, but cannot be opened and closed while water is being supplied.

[0083] A stand 52 is installed at D below the device main body 51. The carbonated water making unit 25 is removably disposed inside the stand 52. The height of the stand 52 is approximately the same as the height of the carbonated water making unit 25. The carbonated water making unit 25 also has wheels 25a at its lower end for moving the carbonated water making unit 25. By removing the carbonated water making unit 25, the carbonated water making section 22 and the cooling water making section 26 can be removed together and separated from the device main body 51. This allows for easy replacement of the carbonated water making section 22 and the cooling water making section 26 with those of different sizes or with carbonated water making section 22 of different hardness.

[0084] The gas cylinders 28 are generally cylindrical, and two of them are arranged side by side in the front-to-rear direction on the left side L of the stand 52 and the device body 51. The gas cylinders 28 are taller than the stand 52 and extend partway up the height of the device body 51.

[0085] 6, when the opening / closing door 53 of the device main body 51 is rotated forward to open the front opening, the water supply box 24, operation panel 32, control unit 35, etc. attached to the opening / closing door 53 move to the outside of the device main body 51. This makes it possible to access the inside of the device main body 51 from the front opening of the device main body 51 during maintenance of the device main body 51. Specifically, it becomes possible to access various filters (not shown) and hollow fiber membranes (not shown) arranged inside the device main body 51, as well as the mineral liquid tank 27 arranged further rearward B, and the circuit board 54 arranged further rearward B.

[0086] The reverse osmosis membrane 21 is cylindrical and is housed in a rectangular cylindrical reverse osmosis membrane housing 21a. The reverse osmosis membrane 21 and the reverse osmosis membrane housing 21a form a cylindrical cartridge that is arranged along the rear surface of the device main body 51 in an orientation extending in the vertical direction. Specifically, it is detachably attached and fixed adjacent to the left edge of the rear surface. The reverse osmosis membrane 21 of the second embodiment is a component of the device main body 51, but is attached to the outer surface of the device main body 51 and is arranged in a state where it protrudes from the rear surface.

[0087] As described above, according to the second embodiment, the first treated water or the second treated water stored in the water receiving tank 11 is supplied to the water vending machine 20 through the fifth water supply line 15, where it is separated into permeate and concentrated water using the reverse osmosis membrane 21. Then, for example, during normal times when no earthquake has occurred, the permeate is provided to users of the facility 2 for a fee, allowing the operator of the facility 2 to earn revenue from the water vending machine 20.

[0088] In contrast, when an earthquake occurs, the detection unit 36 ​​detects an emergency caused by a disaster and transmits a signal indicating the emergency to the control unit 35. When the detection unit 36 ​​detects an emergency, in other words, when the control unit 35 receives a signal indicating the emergency from the detection unit 36, the control unit 35 controls the switching unit 31 so that the water vending machine 20 switches from a paid water supply state to a free water supply state. As a result, in an emergency caused by a disaster, chilled water, room temperature water, carbonated water, mineral water, etc. are provided free of charge to local residents and others around the facility 2 through the water vending machine 20. Furthermore, when the detection unit 36 ​​detects an emergency, the control unit 35 controls the concentrated water supply unit so that concentrated water is supplied free of charge from the concentrated water storage unit 29 through the second concentrated water channel 29b.

[0089] As described above, in the second embodiment, when an earthquake occurs and the water supply is cut off, the permeate water can be provided as drinking water free of charge from the water vending machine 20 to local residents around the facility 2. In addition, the first treated water or the second treated water can be provided as miscellaneous water free of charge to local residents of the facility 2 from facilities such as toilets and the outlet faucet 40 within the facility 2. The above-mentioned advantages of installation can promote the installation of the water supply system 1 in the facility 2.

[0090] In particular, switching between providing drinking water (permeate water, etc.) for a fee and providing drinking water (permeate water, etc.) free of charge can be easily done by simply switching using the switching unit 31. Therefore, even in areas where the water supply is cut off due to a disaster such as an earthquake, drinking water (permeate water, etc.) can be easily provided.

[0091] Furthermore, in the second embodiment, if water is provided free of charge in the event of a disaster, it can be provided not only as drinking water but also as water for daily use.

[0092] In the second embodiment, when the water supply is interrupted due to a disaster such as an earthquake, carbonated water, mineral carbonated water, etc. can be provided free of charge from the water supply box 24. However, since it is an emergency, the supply of carbonated water and mineral carbonated water may be stopped and only cold permeated water may be provided free of charge from the water supply box 24. Specifically, the control unit 35 may be configured to control the carbonated water supply unit so as to stop the supply of carbonated water from the carbonated water generation unit 22 to the water supply box 24 when the water vending machine 20 is switched to the free water supply state. Furthermore, only room temperature permeated water may be provided free of charge from the water supply box 24.

[0093] The water vending machine 20 of the second embodiment includes a device main body 51, a water supply box 24 and a switching unit 31 provided in the device main body 51, a control unit 35 provided within the device main body 51 and controlling the supply of carbonated water or the like to the container in the water supply box 24, a reverse osmosis membrane 21 provided outside the device main body 51 and separating treated water (raw water) into permeate and concentrated water, and a carbonated water making unit 25 provided below the device main body 51 at D and housing a carbonated water making unit 22 and a cooling water making unit 26. According to the second embodiment, the carbonated water making unit 25 housing the carbonated water making unit 22 and the cooling water making unit 26, which are structures for producing carbonated water, is concentrated below the device main body 51 at D, which is advantageous in terms of maintenance and upkeep of the water vending machine 20. Furthermore, the installation area of ​​the water vending machine 20 can be reduced, contributing to a more compact water vending machine 20.

[0094] According to the second embodiment, the carbonated water production section 22 and the cooling water production section 26, which are heavier, are disposed below D of the device body 51, so that the device body 51 can be installed stably.

[0095] Furthermore, according to the second embodiment, the carbonated water production section 22 and the cooling water production section 26 are installed at a position D below the device main body 51 so that they can be attached and removed as a single unit as the carbonated water production unit 25, and therefore, when it is time to replace the carbonated water production section 22, it can be easily replaced. Furthermore, the carbonated water production unit 25 can easily be replaced with a unit of a different size, type, or performance.

[0096] Furthermore, according to the second embodiment, the carbonated water making unit 25 has wheels 25a, which makes it easy to move the carbonated water making unit 25 and allows for smooth replacement work.

[0097] Furthermore, according to the second embodiment, since the reverse osmosis membrane 21 is disposed on the outer surface of the device body 51, the reverse osmosis membrane 21 can be elongated to a height that exceeds the upper and / or lower ends of the device body 51 and is equal to or greater than the height of the device body 51. This significantly expands the range of lengths that can be used for the reverse osmosis membrane 21 and improves the processing capacity of the reverse osmosis membrane 21. Even if the height of the reverse osmosis membrane 21 is greater than the height of the device body 51, the reverse osmosis membrane 21 can be disposed so as to extend beyond the device body 51, thereby enabling the device body 51 to be made more compact. In particular, since the height of the reverse osmosis membrane 21 is within the range of the combined height of the device body 51 and the carbonated water production unit 25, the reverse osmosis membrane 21 may be disposed on the rear or side of the outer surface of the device body 51, increasing the flexibility in the location where the reverse osmosis membrane 21 is installed. In another aspect, the reverse osmosis membrane 21 may be disposed inside the device body 51.

[0098] As described above, according to the second embodiment, groundwater taken in by the pumping pump 4 is treated in the water treatment unit WT to produce first treated water, which is then stored in the receiving tank 11. The first treated water or second treated water stored in the receiving tank 11 is supplied to the water vending machine 20 through the fifth water supply line 15, where it is separated into permeate and concentrated water using the reverse osmosis membrane 21. During normal operation, for example, when no earthquake has occurred, carbonated water, mineral carbonated water, and / or mineral water are provided to users of the facility 2 for a fee, allowing the operator of the facility 2 to earn revenue from the water vending machine 20. This makes it possible to encourage the introduction of a water supply system 1 using groundwater into the facility 2 in preparation for an earthquake.

[0099] -Variation 1- In the second embodiment, when the detection unit 36 ​​detects an emergency, the control unit 35 controls the switching unit 31 to switch the water vending machine 20 to a free water dispensing state. However, the water vending machine 20 may be configured so that an operator's touch operation on the operation panel 32 switches the water vending machine 20 from a paid water dispensing state to a free water dispensing state. For example, when an earthquake occurs, the detection unit 36 ​​sends a detection signal to the control unit 35. In response to the signal from the control unit 35, the operation panel 32 displays an emergency. Then, when the operator touches the operation panel 32, the switching unit 31 is activated, and the carbonated water, mineral carbonated water, cooled permeated water, or room-temperature permeated water provided by the water vending machine 20 is switched from a paid to a free state. This allows the water vending machine 20 to provide permeated water, etc., as drinking water, free of charge to local residents and others around the facility 2. The switching unit 31 switches the provision of permeated water, etc., from a paid to a free state, and returning the switching unit 31 to its original state returns it from a free to a paid state.

[0100] -Variation 2- The control unit 35 may be configured to control the switching unit 31 based on a signal received by the remote control receiving unit 39 from the remote control unit 56, thereby switching the water vending machine 20 from a paid water dispensing state to a free water dispensing state. For example, in this modification, as shown in FIG. 2 , the remote control unit 56 that remotely controls the switching unit 31 via the control unit 35 is provided at a location away from the facility 2. The remote control receiving unit 39 receives a signal from the remote control unit 56 and outputs the signal to the control unit 35. This causes the control unit 35 to switch the switching unit 31 based on the signal from the remote control unit 56, so that water can be dispensed from the water supply box 24 to a container free of charge instead of paid water. By remotely controlling the water vending machine 20 in this manner, even if a disaster occurs and the area is isolated, water can be provided to users free of charge from the water vending machine 20.

[0101] (Third embodiment) A water supply system 1 for a facility 2 according to a third embodiment of the present invention will be described with reference to Fig. 7. Fig. 7 is a block diagram according to the third embodiment that is similar to the schematic block diagram illustrating the flow of water in the water vending machine 20 according to the second embodiment, and illustrates a state in which the flow of water is stopped.

[0102] In the third embodiment, the differences from the second embodiment will be mainly described, and the description of the same parts will be omitted as appropriate. The third embodiment differs from the second embodiment only in the part downstream of the water pump 17, and therefore only the different parts will be described.

[0103] 7, in the third embodiment, the downstream side of the third permeate supply channel 19c of the permeate supply channel 19 is connected to a newly provided second water supply box 241 instead of the water supply box 24. This second water supply box 241 is similar to the first water supply box attached to the side of the main body of the water supply device in JP 2025-015469 A, for example, and a detailed description thereof will be omitted. The third embodiment is similar to the water supply box in JP 2025-015469 A in that one water supply box is located inside the main body of the device and the other water supply box is simply attached to the outside of the main body of the device. The difference is that, while in JP 2025-015469 A, the water supply box that provides permeated water is arranged inside the device body and the water supply box that provides carbonated water is arranged outside the device body, in the third embodiment of the present invention, the water supply box 24 that provides carbonated water is arranged inside the device body 51 and the second water supply box 241 that provides permeated water is arranged outside the device body 51. In the third embodiment, the second water supply box 241 is removably attached to the outside of the side of the device body 51 of the water vending machine 20. In relation to the claims, the "water supply box" as used in the present invention includes the "water supply box 24" and the "water supply box 241" of the embodiments.

[0104] In the third embodiment, similar to the second embodiment, room-temperature permeate water flowing out from the reverse osmosis membrane 21 is supplied to the mineral water production unit 23 through the second permeate supply channel 19b, and then supplied from the mineral water production unit 23 to the water supply box 24 through the water supply channel 18, thereby providing mineral water. The third embodiment differs from the second embodiment in that, in the second embodiment, room-temperature permeate water flowing out from the reverse osmosis membrane 21 is supplied from the third permeate supply channel 19c to the water supply box 24 through the water supply channel 18. However, in the third embodiment, the downstream side of the third permeate supply channel 19c is not connected to the water supply channel 18, and the flow path through the water supply channel 18 to the water supply box 24 is eliminated. Instead, the downstream side of the third permeate supply channel 19c is directly connected to the second water supply box 241. This allows room-temperature permeate water flowing out from the reverse osmosis membrane 21 to be provided free of charge from the second water supply box 241, which is separate from the water supply box 24, even under normal operating conditions.

[0105] During normal operation, in the third embodiment, similarly to the second embodiment, carbonated water, mineral carbonated water, mineral cooling water, and cooling permeate water are provided for a fee in accordance with the user's selection from the water supply box 24. At the same time, during normal operation, permeate water is provided free of charge from the second water supply box 241 through the first permeate water supply path 19a and the third permeate water supply path 19c of the permeate water supply path 19.

[0106] In the third embodiment, when a disaster such as an earthquake occurs, a signal from the detection unit 36 ​​that detects an emergency is sent to the control unit 35. The signal from the control unit 35 switches the switching unit 31, and the water vending machine 20 switches from a paid water supply state to a free water supply state. As a result, in the third embodiment, as in the second embodiment, the carbonated water, mineral water, and permeated water provided from the water supply box 24 switch from a paid state to a free state. Chilled water, room temperature water, carbonated water, mineral water, etc. are provided free of charge to local residents and others around the facility 2 through the water supply box 24 of the water vending machine 20. Furthermore, when the detection unit 36 ​​detects an emergency, the control unit 35 controls the concentrated water storage unit 29 so that concentrated water is supplied free of charge from the concentrated water storage unit 29 through the second concentrated water channel 29b.

[0107] As described above, in the third embodiment, when an earthquake occurs and the water supply is cut off, permeate water or the like can be provided as drinking water free of charge to local residents around the facility 2 from the water supply box 24 of the water vending machine 20. In addition, the first treated water or the second treated water can be provided as miscellaneous water free of charge to local residents of the facility 2 from facilities such as toilets and the outlet faucet 40 within the facility 2. The above-mentioned advantages of installation can promote the installation of the water supply system 1 in the facility 2.

[0108] In particular, permeate water at room temperature is provided free of charge from the second water supply box 241 even in non-emergencies, but in emergencies, drinking water (permeate water, etc.) is provided free of charge from the water supply box 24, so drinking water (permeate water, etc.) can be easily provided even in areas where the water supply is cut off due to a disaster such as an earthquake.

[0109] In addition, in the third embodiment, the drinking water provided free of charge from the water supply box 24 can be selected from carbonated water, mineral carbonated water, cooled permeated water, etc., by operating the operation panel 32, and drinking water can be provided free of charge in accordance with the demand in the area where a disaster has occurred.

[0110] It should be noted that not all types of water, including carbonated water, mineral carbonated water, mineral cooling water, and cooling permeate water, may be needed during a disaster. Providing all types of water would require a large amount of electricity, so it is understandable that it would be desirable to reduce power consumption. Therefore, in the third embodiment, water is provided free of charge from the water supply box 24 during a disaster, but it is also possible to limit the types of water provided free of charge, for example, by stopping the provision of carbonated water or mineral water. In this way, in the third embodiment, the types of water provided can be limited or selected depending on the situation during a disaster.

[0111] In the third embodiment, by providing a second water supply box 241 separate from the water supply box 24, carbonated water and the like are provided from the water supply box 24 for a fee under normal use conditions, but by using the second water supply box 241, permeated water at room temperature can be obtained free of charge, which contributes to promoting use by users. When a user obtains permeated water free of charge, the likelihood that they will also purchase carbonated water (permeated water, etc.) for a fee increases, which contributes to promoting use of the water vending machine.

[0112] -Variation- A modification of the third embodiment is shown in Fig. 8. This modification will be described with reference to Fig. 8.

[0113] In the modification shown in Fig. 8, an opening and closing means 43 is provided in the fifth water supply channel 15 through which permeated water is supplied from the reverse osmosis membrane 21 to the water vending machine 20. The opening and closing means 43 is electrically connected to the control unit. When the opening and closing means 43 is closed, the permeated water is no longer supplied to the carbonated water production unit 25 and the mineral water production unit 23. The carbonated water production unit 25 and the mineral water production unit 23 are electrically connected to the control unit.

[0114] The upstream side of the second permeate supply channel 19b of the permeate supply channel 19 is connected to the fifth water supply channel 15 at a position downstream of the opening / closing means 43, and the downstream side of the second permeate supply channel 19b is connected to the mineral water production unit 23. The upstream side of the third permeate supply channel 19c is connected to the reverse osmosis membrane 21, and the downstream side is connected to the second water supply box 241.

[0115] During normal use, the opening / closing means 43 is open, and permeated water is sent from the reverse osmosis membrane 21 through the fifth water supply channel 15 to the carbonated water production unit 25. The permeated water from the reverse osmosis membrane 21 is also supplied to the mineral water production unit 23 through the second permeated water supply channel 19b. Carbonated water, mineral carbonated water, cooled permeated water, etc. are then supplied to users from the water supply box 24 via the water supply channel 18 from the carbonated water production unit 25 and / or the mineral water production unit 23 for a fee. The room-temperature permeated water from the reverse osmosis membrane 21 is supplied to the second water supply box 241 through the third permeated water supply channel 19c. The second water supply box 241 is always able to provide room-temperature permeated water free of charge.

[0116] In the event of a disaster such as an earthquake, a signal from the detection unit 36 ​​is sent to the control unit 35, and the control unit 35, upon receiving the signal from the detection unit 36, switches the switching unit 31, switching the water vending machine 20 from a paid water supply state to a free water supply state. In this modified example, the opening / closing means 43 switches from an open state to a closed state in response to the switching operation of the switching unit 31. This blocks the flow of permeated water through the fifth water supply channel 15 and the permeated water supply channel 19. At the same time, the production of carbonated water in the carbonated water production unit 25 and the production of mineral water in the mineral water production unit 23 are interrupted. In this way, instead of switching the carbonated water, mineral water, and permeated water provided from the water supply box 24 from paid to free, the provision of various types of water from the water supply box 24 is stopped.

[0117] In the modified example of the third embodiment, in an emergency, all water, including drinking water (permeate water, etc.), is not provided from the water supply box 24, thereby preventing the mistaken idea or usage that carbonated water, mineral water, etc. are provided from the water supply box 24 in an emergency, either free of charge or for a fee. This simplifies the water available to users by limiting it to the second water supply box 241, thereby preventing confusion among users.

[0118] In particular, in places where not only the water supply but also the electricity supply has been cut off due to a disaster, water can be obtained from well water, but electricity must be supplied by a private generator or a spare battery, etc., so in order to reduce electricity consumption as much as possible, it is preferable to stop the supply of water from the water supply box 24 of the water vending machine 20, as in this modified example.

[0119] In addition, even in the third embodiment, without providing an opening / closing means 43 as in the modified example of the third embodiment, it is possible to prevent water from being supplied from the water supply box 24 by providing a mechanism that stops the flow of the fifth water supply channel 15 and the permeate supply channel 19 in the event of a disaster, or by controlling the control unit 35 to stop the operation of the carbonated water generation unit 25.

[0120] In the above embodiment, an example in which groundwater is taken from one well 3 has been described, but groundwater may be taken from two or more wells 3.

[0121] Furthermore, in the above embodiment, an example was described in which the water treatment unit WT includes the chlorine injection line 6, the chlorine tank 7, the chlorine injection pump 8, and the filtration device 9. However, the water treatment unit WT may be modified as appropriate to suit the quality of the groundwater being taken. For example, the water treatment unit WT may include at least one of a sand filtration device (not shown), an activated carbon filtration device (not shown), another filtration device (not shown) having a microfiltration membrane (MF membrane), another filtration device (not shown) having an ultrafiltration membrane (UF membrane), another filtration device (not shown) having a reverse osmosis membrane (RO membrane), and another filtration device (not shown) having a nanofiltration membrane (NF membrane).

[0122] Furthermore, in the above embodiment, an example has been described in which tap water is supplied to the water receiving tank 11 from the waterworks pipe 13, but tap water may not be supplied to the water receiving tank 11 from the waterworks pipe 13. In this case, first treated water is stored in the water receiving tank 11, and the first treated water is supplied to the water vending machine 20, the equipment 30, and the outlet faucet 40.

[0123] In addition, in the above embodiment, the example of the water receiving tank 11 was used as the water storage tank, but as long as it is possible to store the first treated water or the second treated water, means other than the water receiving tank 11 (for example, an elevated water tank or a pressurized water tank, etc.) may be used.

[0124] In the above embodiment, an example has been described in which the fifth water supply passage 15 and the sixth water supply passage 16 are connected to the water tank 11 via the fourth water supply passage 14, but the fifth water supply passage 15 and the sixth water supply passage 16 may each be connected directly to the water tank 11. In this case, the fifth water supply passage 15 and the sixth water supply passage 16 may each be provided with a water pump 17.

[0125] In addition, in the above embodiment, an example was described in which the water vending machine 20 is equipped with a carbonated water generation unit 22 and a mineral water generation unit 23, but the water vending machine 20 may be equipped with only one of the carbonated water generation unit 22 and the mineral water generation unit 23.

[0126] Furthermore, in the above embodiment, an example has been described in which the operator of facility 2 earns revenue by having water vending machine 20 provide (sell) permeate water, carbonated water, mineral water, and mineral carbonated water for a fee, but permeate water, carbonated mineral water, and mineral carbonated water may be provided free of charge to customers of facility 2 (e.g., a supermarket), users, staff, or employees of facility 2 (e.g., a public facility), or visitors to facility 2 (e.g., a stadium). In this case, the switching unit 31 may be switched so that permeate water, carbonated mineral water, and / or mineral carbonated water are provided free of charge.

[0127] Furthermore, in the above embodiment, an example has been described in which the downstream portion of the sixth water supply passage 16 branches, but the downstream portion of the sixth water supply passage 16 may not branch, and may be connected only to the equipment 30 or only to the outlet faucet 40. In this case, the first treated water or the second treated water from the water receiving tank 11 may be supplied to the equipment 30 or the outlet faucet 40 that is not connected to the sixth water supply passage 16 using another water supply passage (not shown) that is provided separately from the sixth water supply passage 16 and connected to the water receiving tank 11, and another water pump (not shown) provided in the other water supply passage (not shown).

[0128] In addition, in the above embodiment, an example in which the equipment 30 and the outlet tap 40 are provided is described, but it is also possible to provide only one of the equipment 30 and the outlet tap 40, or to not provide both the equipment 30 and the outlet tap 40.

[0129] Furthermore, in the above embodiment, an example has been described in which the outlet tap 40 is provided outdoors the facility 2, but the outlet tap 40 may also be provided indoors in the facility 2.

[0130] Furthermore, in the above embodiment, an example was described in which the facility 2 is equipped with the power generation equipment 50, but instead of or in addition to the power generation equipment 50, a power storage device (e.g., a lithium ion battery) not shown may be provided as an emergency power source in the event of a power outage.

[0131] Furthermore, in the second modification of the second embodiment, the remote operation receiving unit 39 and the remote operation unit 56 are provided, but the remote operation receiving unit 39 and the remote operation unit 56 may be omitted in some cases. Furthermore, instead of providing water to users free of charge from the water vending machine 20 by remote operation alone, the water vending machine 20 may provide water to users free of charge by combining remote operation with operation of the operation panel 32. Furthermore, the switching unit 31 may be designed to be manually operable, so that the switching unit 31 can be manually switched in an emergency. [Industrial Applicability]

[0132] The present invention is suitable for a facility's water supply system. [Explanation of symbols]

[0133] 1. Water supply system 2 Facilities 4. Water pump (intake section) 11 Water receiving tank (storage tank) 14 4th supply channel (3rd supply channel section) 15 5th supply channel (1st supply channel section) 16 6th supply channel (2nd supply channel section) 17 Water pump (pump section) 20 Water Vending Machine 21 Reverse osmosis membrane 22 Carbonated water generator 23 Mineral water generation unit (mineral carbonated water generation unit) 24 Water Supply Box 25 Carbonated Water Generating Unit 26 Cooling water generation section 30 Equipment 31 Switching section 32 Operation panel (operation section) 35 Control Unit 39 Remote control receiver 40 Outlet faucet (miscellaneous water supply outlet) WT Water Treatment Unit 51 Device body 56 Remote control unit

Claims

1. 1. A facility water supply system comprising: an intake section for taking in groundwater; a water treatment unit that treats the groundwater taken in by the water intake unit; a water tank for storing treated water treated in the water treatment unit; a first supply path portion capable of supplying the treated water stored in the water tank; a water vending machine having a reverse osmosis membrane and receiving the treated water from the first supply path portion; The water vending machine is a facility water supply system configured to separate the treated water into permeate and concentrate using the reverse osmosis membrane and provide the separated permeate.

2. The facility water supply system according to claim 1, The water vending machine further includes a carbonated water generation unit capable of generating carbonated water by mixing the permeated water with carbon dioxide gas, and the facility's water supply system is configured to provide the carbonated water generated in the carbonated water generation unit.

3. The facility water supply system according to claim 2, The water vending machine further includes a mineral carbonated water generating unit capable of generating mineral carbonated water by mixing the carbonated water with mineral components, and the facility's water supply system is configured to provide the mineral carbonated water generated in the mineral carbonated water generating unit.

4. The facility water supply system according to claim 1, The water vending machine further comprises a mineral water production unit capable of producing mineral water by mixing the permeate with mineral components, and the facility's water supply system is configured to provide the mineral water produced in the mineral water production unit.

5. The facility water supply system according to claim 1, a second supply path portion capable of supplying the treated water stored in the water tank; A water supply system for a facility, further comprising: equipment to which the treated water is supplied from the second supply channel portion.

6. The facility water supply system according to claim 5, a downstream portion of the second supply path portion is branched, one downstream portion of the second supply path portion is connected to the equipment, A water supply system for a facility, wherein the other downstream portion of the second supply path portion is connected to a utility water supply port portion.

7. The facility water supply system according to claim 1, The water vending machine is a water supply box in which a container to which the permeated water is supplied is set; The water vending machine is equipped with a switching unit that can switch between a paid water supply state in which the permeated water is supplied from the water supply box to the container for a fee and a free water supply state in which water is supplied free of charge, a detection unit for detecting an emergency caused by a disaster; A water supply system for a facility, further comprising: a control unit that controls the switching unit so that the water vending machine switches from the paid water supply state to the free water supply state when the detection unit detects an emergency.

8. The facility water supply system according to claim 7, A concentrated water storage unit that stores the concentrated water discharged from the water vending machine; a concentrated water supply unit that supplies the concentrated water stored in the concentrated water storage unit, The control unit controls the concentrated water supply unit so that the concentrated water is supplied free of charge from the concentrated water storage unit when the detection unit detects an emergency. A facility water supply system characterized by:

9. The facility water supply system according to claim 7, The water vending machine further includes a carbonated water generating unit capable of generating carbonated water by mixing the permeated water with carbon dioxide gas, and a carbonated water supply unit that supplies the carbonated water from the carbonated water generating unit to the water supply box, The control unit controls the carbonated water supply unit to stop supplying the carbonated water from the carbonated water production unit to the water supply box when the water vending machine is switched to the free water supply state. A facility water supply system characterized by:

10. The facility water supply system according to any one of claims 7 to 9, Further provided with a touch panel type operation unit that is operated by touching by an operator, When an operator touches the operation unit, the water vending machine switches from the paid water supply state to the free water supply state. A facility water supply system characterized by:

11. The facility water supply system according to any one of claims 7 to 9, a remote control unit provided at a location away from the facility; a remote control receiving unit that receives a signal from the remote control unit, The control unit is configured to control the switching unit based on a signal from the remote control unit received by the remote control receiving unit to switch the water vending machine from the paid water supply state to the free water supply state.

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