JP2019130433A - Water purification system - Google Patents

Abstract

To provide water purification system that easily configures multiple water purification units to be installed in a container and eliminates maintenance as much as possible.SOLUTION: There is provided a water purification system with a container 51 including: a storage battery that stores electricity generated by a solar module 53; a first water purification unit 6 provided on an upstream side of a main pipe 1; a reclaimed water storage unit 2 that is connected to a sub pipe branched from the main pipe 1 and automatically generates and stores reclaimed water in which salt and raw water are mixed; a soft water generating unit 3 that receives the reclaimed water from the reclaimed water storage unit 2 and regenerates the reclaimed water using water softening means and softens the raw water using the water softening means; a soft water storage unit 4 that is connected to a downstream side of the soft water generating unit 3 and stores the generated soft water; a reverse osmosis membrane treatment unit 61 connected to the soft water storage unit 4; a reverse osmosis membrane cleaning treatment unit 62 that automatically cleans a reverse osmosis membrane material of the reverse osmosis membrane treatment unit 61; a drinking water storage unit 63 connected to the reverse osmosis membrane treatment unit 61; and a final water purification treatment unit 65 and a water supply unit 66 connected to the drinking water storage unit 63.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a water purification apparatus that uses raw water such as well water, lake water, and seawater as drinking water, and more particularly, to a water purification apparatus that includes a plurality of filtration units disposed in a container.

  First, Patent Document 1 states that “a main pipe that receives raw water is provided in a container, three or more water purification treatment sections are connected from the upstream side to the downstream side of the main pipe, and the drinking water treated by the last water purification treatment section” "Technology for sending water to a water supply unit" is disclosed.

  When the water purification treatment part of this patent document 1 is divided, the solid-liquid separation treatment part 1a connected to the upstream side of the main pipe, the water purification treatment part 1b for treating the treated water treated by this solid-liquid separation treatment part, and the water purification It consists of the water supply part 1c which has the some faucet in the purified water processed by the process part.

  However, the solid-liquid separation processing unit 1a includes a precipitation processing tank 4, a flocculating and mixing reaction device 6 and a solid-liquid separating device for removing dirty raw water. The flocculating and mixing reaction device 6 further includes a flocculant tank 7a. Further, since components such as the stirring blade 7b, the mixing tank 7 and the reaction tank 8 are necessary, there is a problem that the configuration of the upstream filtering means is extremely complicated. Moreover, although the said water purification process part 1b consists of the filter filtration tank 20 and the chemical | medical agent treatment tank 21 connected to this filter filtration tank, while not being able to wash | clean the filter of the said filter filtration tank 20 automatically, raw | natural water (hard water ) Cannot be automatically softened. Furthermore, although a plurality of control valves and pumps connected to the control unit are arranged at appropriate locations in the water purification treatment unit, the power source used for the control unit, control valve, pump, etc. is arranged in the container. Since the generated generator 60 is relatively large, the space of the container cannot be used effectively, and it does not follow the flow of the idea of using natural energy (reference numeral is that of Patent Document 1). .

  Next, Patent Document 2 discloses that a total of three reverse osmosis membrane means are connected in series and the three reverse osmosis membrane means are connected at a required time in order to prolong the life of the PO membrane of the water purifier. A technique of cleaning with cleaning water at a time using water in a water supply tank is disclosed (FIG. 1). Also disclosed is a technique for washing an ion exchange resin with reclaimed water (salt water).

  However, this patent document 2 has a problem that automatic rotation of each reverse osmosis membrane means is not possible when the PO membrane of the reverse osmosis membrane means is washed. There is also a problem that the reclaimed water (salt water) must be sent manually to the ion exchange resin. Further, as in Patent Document 1, there is a problem that natural energy is not effectively used.

  Next, the main problem of Patent Document 3 is that the faucet is easily carried to a desired place such as a home or an accommodation facility, and the configuration of the water purifier is simplified by using the water pressure of tap water, and Hard water can be softened to obtain “delicious water containing mineral components”. In addition to this, although it is necessary to temporarily stop the operation of the apparatus during maintenance, it is not necessary to replace the ion exchange resin. By using water pressure, it is to minimize the effort.

  In the invention described in Patent Document 3, since reclaimed water (salt water) must be carried in a container and placed in a production tank equipped with water softening means, some improvements are made from the viewpoint of "labor saving (reducing labor)". There was a point. In addition, since raw water such as well water and lake water cannot be used as generated water, there is a problem that it is difficult to adopt in developing countries, island countries, remote islands, etc. where lifelines are not sufficient.

  Further, Patent Document 4 relates to a hardness leak detection device in a soft water system (for example, a boiler water supply system) for removing hardness components such as calcium and magnesium, and FIG. A technique is described in which a branched sampling pipe 4 is provided in a soft water supply pipe connecting a water supply tank 8 that stores soft water, and a hardness sensor 7 that measures the hardness of the soft water is provided in a sample water container supplied from the sampling pipe 4. ing.

  In addition, Patent Document 5 discloses a container-type water purification apparatus. In this container-type water purification apparatus described in Patent Document 5, at least a solar cell module is disposed on a top plate of a container, while a plurality of pumps operated by electricity obtained from the solar cell module in the container. And a control panel for controlling the water purifier main body and using the electricity, the water purifier main body puts dirty raw water and a flocculant in a reaction tank, and the reaction A solid / liquid separation processing unit that separates flocs that settle through an agitating means that is rotated by a driving force of a driving motor provided in the tank, and transparent water whose chromaticity has changed to a transparent color, and the solid / liquid separation processing A supernatant collecting device disposed between the head and the downstream filtration device, the supernatant collecting device including a transfer pump on the downstream side, and ascending and descending in response to the displacement of the water level in the supernatant collecting tank. Move Both characterized by pumping the supernatant portion to the downstream side through the movable pipe means for sucking the supernatant portion so as not inhale floating flocs remaining in the clear water of the supernatant collection tank.

  Although the technique of disposing the solar cell module on the top plate of the container is disclosed in Patent Document 5, the water purification apparatus disposed in the container is the same as that of Patent Document 1, There are similar problems such as the configuration of the upstream filtration means being extremely complicated, the raw water (hard water) cannot be automatically softened, and the filtration member cannot be automatically washed.

JP 2007-7618 A JP 2014-76428 A WO2017 / 109813A1 No. 7-44995 WO2010 / 046960

  The main problem of the present invention is that, in view of the problems of Patent Document 1 and Patent Document 2, each structure of a plurality of water purification treatment units disposed in a container is simply configured, and maintenance is not required as much as possible (each water purification It is to make the processing unit as automatic as possible. In addition, at least four or more water purification treatment units (first water purification treatment unit, soft water generation unit, reverse osmosis membrane treatment unit, last water purification treatment unit) are disposed (to effectively use the internal space of the container). It is. Moreover, it is using a solar module as a power supply used for the control part, control valve, pump, etc. which were arrange | positioned in the container. In addition, by using raw water such as well water, lake water, and seawater as drinking water, it can be freely installed in a desired place. In addition, depending on the embodiment, the safety standards required by the state can be sufficiently satisfied, delicious mineral water can be obtained, the power obtained from the solar module can be stored, and the stored power can be used effectively for electrical equipment. It is to be.

  In addition, depending on the embodiment, it is necessary to automatically put reclaimed water into a soft water production tank at a predetermined or required time to remove (regenerate) hardness such as calcium and magnesium adhering to the water softening means at one time. When the salt having a relatively large particle size is put into the reclaimed water storage unit, the control unit monitors the hardness of the soft water and uses the reclaimed water in the reclaimed water storage unit to regenerate the water softening means multiple times over time (for example, 3 to 5 times), and salt does not stay at the recycled water supply port of the bottom wall of the storage tank body.

  The water purification apparatus of the present invention is provided with a main pipe in a container, connected to a plurality of water purification treatment sections from the upstream side to the downstream side of the main pipe, and supplied with drinking water treated by the last water purification treatment section. In the water purification apparatus to be sent to the unit, a solar module is provided in the container, a storage battery for storing electricity generated by the solar module, and a control unit using the storage battery as a power source is provided in the container. Is connected to a first water purification treatment unit provided on the upstream side of the main pipe, a secondary pipe branched to the main pipe via a directional control valve, and automatically generates reclaimed water mixed with salt and raw water, A reclaimed water storage section for storing a required amount of reclaimed water, and the reclaimed water in the reclaimed water storage section can be received and the water softening means can be regenerated by the reclaimed water, and the raw water is converted to soft water by the water softening means. A soft water generating unit capable of being connected to the main pipe downstream from a connection point of the soft water generating unit, and a soft water storing unit storing soft water generated by the soft water generating unit, and connecting to the soft water storing unit A reverse osmosis membrane treatment unit and a reverse osmosis membrane washing process connected to the reverse osmosis membrane treatment unit so that the reverse osmosis membrane material of the reverse osmosis membrane treatment unit can be automatically washed by a control signal of the control unit A drinking water storage unit connected to the reverse osmosis membrane processing unit, and the final water purification processing unit and water supply unit connected to the drinking water storage unit.

  The said structure WHEREIN: The chemical | medical agent supply part is arrange | positioned with respect to the said drinking water storage part, It is characterized by the above-mentioned. Moreover, the last water purification process part has a 1st water purification member and the 2nd water purification member connected to this through the transfer pump provided in the downstream of the said main pipe, It is characterized by the above-mentioned. Further, the container is provided with at least one of a lighting fixture or an air conditioner that uses the storage battery as a power source. Further, the control unit controls the regenerative water on-off valve and the pressure feeding unit provided on the reclaimed water supply pipe connecting the direction control valve, the main pipe and the reclaimed water storage unit, respectively, when regenerating the water softening means, The reclaimed water stored in the section is automatically supplied to the soft water generating section. The reclaimed water reservoir is positioned higher than the reclaimed water supply port at the lower end of the storage tank main body to which the raw water suction port at the upper end is connected, and is provided in the reserving tank main body. And a float valve which is displaced in the vertical direction by the water level of the reclaimed water in the storage tank main body. Further, the main pipe is provided with a hardness measuring means for measuring the hardness of the soft water.

  The above and other problems and novel features of the present invention will become more fully apparent when the following description is read in conjunction with the accompanying drawings. However, the drawings are for explanation only and do not limit the technical scope of the present invention.

  Each of the plurality of water purification treatment units arranged in the container is rationally (simple) and each water purification treatment unit can automatically perform water purification treatment as much as possible. Thus, at least four or more water purification treatment units (first water purification treatment unit, soft water generation unit, reverse osmosis membrane treatment unit, last water purification treatment unit) can be disposed. In addition, the internal space of the container can be used effectively.

  Further, as a power source used for a control unit, a control valve, a pump and the like disposed in the container, a solar module in accordance with the current idea can be used. Furthermore, raw water (hard water) such as well water, lake water, seawater and the like can be sufficiently softened, and can be employed in developing countries, island countries, remote islands and the like where lifelines are not sufficient.

  Depending on the embodiment, it is possible to automatically put reclaimed water into a soft water generation tank at a predetermined or required time by a rational mechanism and remove (regenerate) hardness such as calcium and magnesium adhering to the water softening means. it can. Further, salt can be prevented from staying at the reclaimed water supply port on the bottom wall portion of the storage tank body. Furthermore, safe and delicious drinking water can be obtained.

1 to 22 are explanatory views showing one embodiment of the present invention.
Explanatory drawing which showed the whole of the water purification apparatus roughly. Explanatory drawing from the perspective of the container which equipped the water purification apparatus internally. The conceptual diagram of the whole soft water apparatus which comprises a water purification apparatus (however, a control system is excluded). The schematic explanatory drawing of the control system of a water softener. In particular, a control unit, a raw water on-off valve, a first three-way switching valve, a flow meter, a second three-way switching valve, a hardness measuring means, and the like that are sequentially provided in the main pipe are shown. Explanatory drawing which shows the specific structural member of a reclaimed water storage part and a reclaimed water supply pipe. Explanatory drawing which shows a net-like salt support body and industrial salt. Explanatory drawing which shows the specific structural member of a soft-water production | generation part (The flow of each fluid is also shown simultaneously). Explanatory drawing which the hardness component adhered to the water softening means at the time of reproduction | regeneration. Schematic explanatory drawing when reproducing | regenerating a water softening means. The conceptual diagram by which the water softening means was immersed in the regeneration water for the required time, and the hardness component was removed from the water softening means. Explanatory drawing which drains treated water from a soft-water production | generation part after reproduction | regeneration. Schematic explanatory drawing which shows the flow of the raw | natural water and soft water which flow through a main pipe after draining treated water. Schematic explanatory drawing of an electric system. Schematic explanatory drawing of the downstream (from a soft water storage part to a mineral water supply part) of a water purification apparatus. Explanatory drawing which attached two high-pressure containers to the reverse osmosis membrane processing part. Explanatory drawing which provided the three high-pressure containers side by side with a reverse osmosis membrane process part. Explanatory drawing which shows the flowchart of a reverse osmosis membrane washing | cleaning process part. Schematic explanatory drawing which shows an example of a drinking water storage part. Schematic explanatory drawing which shows an example of a chemical | medical agent supply part. Schematic explanatory drawing which shows an example of the last water purification process part. Explanatory drawing which shows an example of a water supply part. Explanatory drawing which shows arrangement | positioning of each process part and electric equipment from the planar view of this invention.

  1 thru | or FIG. 22 is the water purification apparatus X of 1st Embodiment of this invention. FIG. 1 is a schematic explanatory view in which a solar module 53 is provided on the top surface of a top plate 52 of a container 51 and substantially all of the water purification apparatus X including the water softening device A is disposed inside the container 51. On the other hand, FIG. 22 is explanatory drawing of arrangement | positioning of each process part and electric equipment which comprise the water purifier X. FIG. However, FIG. 1 omits the control system and the electric system, respectively, and the flow of raw water, the flow of regenerated water generated and stored, the discharge of reclaimed water, the flow of soft water after discharging the reclaimed water, and the flow that turns soft water into clean drinking water Etc. are shown schematically. FIG. 2 is an explanatory view from the perspective of the container 51. Furthermore, FIG. 22 is an overall explanatory diagram in which the electric system and a number of control valves are omitted.

  First, the configuration of the horizontally long storage box-shaped container 51 will be described with reference to FIG. Since the container 51 is an ordinary metal container for freight transportation, it is a storage box having a length of, for example, 20 feet or 40 feet and being transportable. Of course, the outer shape of the container 51 may be a house type in which the top plate 52 is formed in a mountain shape as long as it is a transportable storage box.

  54 is an open / close door corresponding to the front wall, 55 is a rear wall, 56 is a left and right side wall, 57 is a spare door formed on one of the left and right side walls, and 58 is one of the left and right side walls. Reference numeral 59 denotes a base (floor). The container 51 of the embodiment is provided with the spare door 57 and the opening / closing window 58 in consideration of air permeability. In order to utilize solar energy, at least the solar cell module 53 is disposed horizontally or inclined on the top surface of the top plate 52 of the container 51.

  Here, the “electric system” will be briefly described with reference to FIG. 13. Reference numeral 41 denotes a large-capacity storage battery that stores the direct current of the solar battery module 53. Many storage batteries are stored in a case, for example. Reference numeral 45 denotes a control unit which will be described later, and the control unit 45 includes an inverter 42. The inverter 42 has a power supply control circuit, and converts direct current from the storage battery 41 into alternating current. Reference numeral 43 denotes a distribution board. The distribution board 43 supplies electricity to a plurality of switching valves 7 and 9, a plurality of pumps, a plurality of control valves a and b, an illumination lamp 91, an air conditioner 92, and the like through energization lines. send.

Next, the water purification apparatus X is demonstrated with reference to FIG.1 and FIG.22. The water purification apparatus X is mainly composed of “soft water apparatus A” shown in FIGS. 1 to 12 and “drinking water treatment apparatus B” mainly shown in FIGS. 14 to 21. Hereinafter, the former soft water apparatus A will be described, and then the latter drinking water treatment apparatus B will be described.
FIG. 1 is a block diagram illustrating the entire water purification apparatus X for convenience. The “soft water device A” will be described in a method with reference to FIG.

  First, the water softener A has a reclaimed water storage step. In this reclaimed water storage step, salt S and raw water (hard water) HW are mixed in the reclaimed water storage unit 2 to generate, for example, 100 l of reclaimed water WS. Next, the water softener A has a regeneration step that follows the reclaimed water storage step. In this regeneration step, the reclaimed water WS is introduced into the soft water generating unit 3 through the pressure feeding means 22, and the water softening means 31 of the soft water generating unit 3 is regenerated (salted) for a predetermined time. Next, the water softener A has a process water (salt water) discharge step subsequent to the regeneration step. In this treated water discharging step, after the water softening means 31 is regenerated, the recycled water WS having a hardness component in the generation tank 30 of the soft water generating unit 3 is discharged from the first drain pipe 10 as the processed water WS1. Next, the soft water apparatus A has the soft water production | generation process following the said treated water discharge process. In the soft water generation step, the raw water (hard water) HW is introduced into the soft water generation unit 3 after the treated water discharge step to generate soft water SW. Next, the soft water apparatus A has the soft water storage process following the said soft water production | generation process. In this soft water storage step, the soft water SW generated in the soft water generation step is temporarily stored.

  The water softener A further includes a soft water generation stop step that stops generating soft water in the soft water generator 3 when a required amount of soft water accumulates in the water tank main body of the soft water storage step, and then the control unit 45 Automatically performs the regeneration step again.

  Next, each processing unit of the “drinking water treatment apparatus B” will be described with reference to FIG. This drinking water treatment apparatus B has a reverse osmosis membrane treatment unit 61. In the reverse osmosis membrane processing unit 61, the soft water SW stored in the soft water storage unit 4 is guided to the plurality of filtering means 72 via the high pressure pump 71 via the electromagnetic valve 40. Next, a reverse osmosis membrane cleaning processing unit 62 is provided for cleaning periodically or at a required time so that the reverse osmosis membrane (hereinafter referred to as “membrane”) of the filtering means 72 is not clogged. The reverse osmosis membrane cleaning processing unit 62 takes a part of the purified water into the cleaning water storage tank 73 from at least one of the plurality of filtering means 72 through the control valve a1 on the inlet side. The purified water in the cleaning water storage tank 73 is sent to the filtering means 72 to be cleaned through the cleaning pump 74 and the control valve b1 on the outlet side (see, for example, FIG. 15). Although not particularly shown, it is preferable that the reverse osmosis membrane cleaning processing unit 62 includes a bubble supply unit (ejector) for supplying bubbles to the filtering unit 72 using soft water during cleaning.

  Next, the drinking water treatment apparatus B has a drinking water reservoir 63 connected to the filtering means 72. The drinking water storage unit 63 automatically accepts the soft water (drinking water) sent from one or the other filtering means 72 so that it always has a predetermined water level. At this time, the control unit 45 controls opening and closing of a required control valve based on a detection signal of a water level sensor (level meter) 76 as a detection means provided in the large drinking water storage tank 75 of the drinking water storage unit 63. . The drinking water reservoir is large, for example “10t”. In this large drinking water storage tank 75, it is possible to put chemical treatment water from a chemical supply part 64 having an injection pump 77 and a chemical treatment tank 78 through a chemical supply valve c (see FIG. 19). Thereby, bacteria can be removed and the national safety standards can be met.

  Furthermore, the drinking water treatment apparatus B transfers the drinking water sterilized in the drinking water storage unit 63 to the final water purification processing unit 65 via the transfer pump 79. In order to obtain delicious and safe drinking water, the last water purification treatment unit 65 includes, for example, a first water purification means 81 and a second water purification means 82 connected thereto. And the drinking water which passed through this last water purification process part 65 is sent to the mineral supply part 66 as "mineral water." The mineral n water supply unit 66 has a plurality of faucets 83 provided with a predetermined interval (see FIG. 21).

  Here, returning to FIG. 1, the water softener A will be described in detail. The raw water HW is hard water such as well water, lake water, rivers, and seawater. The water softener X introduces the raw water HW into the required length of the main pipe 1 via a raw water supply pump (not shown). A reclaimed water storage section 2, a soft water generation section 3, and a soft water storage section 4 are sequentially or directly connected to the main pipe 1 from the upstream side on the left side of the drawing toward the downstream side on the right side of the drawing.

  In addition, the main pipe 1 similarly controls the flow of the raw water HW from the upstream side, the inlet motorized valve 5 for controlling (stopping / flowing) the raw water HW, the first water purification treatment unit (for example, activated carbon tank) 6, and the flow of the raw water HW (direction change). First three-way switching valve (direction control valve) 7, flow meter 8 for measuring the flow rate of reclaimed water, treated water (salt water containing removed hardness) WS 1 containing the hardness component after regenerating the water softening means A second three-way switching valve (direction control valve) 9 flowing to 10 and a hardness measuring means (measuring instrument) 11 for measuring the hardness of soft water are sequentially provided. The inlet motor-operated valve 5, the first three-way switching valve 7, the second three-way switching valve 9 and the like can be controlled by a control unit described later. The first water purification unit (for example, activated carbon tank) 6 is the same as the first water purification means (for example, activated carbon tank) 81 shown in FIG. Thereby, the manufacturing cost can be reduced.

  The present invention relates to one problem of the invention (reducing labor during regeneration as much as possible), and at least twice or more (preferably, reclaimed reclaimed water WS regenerated in the reclaimed water storage unit 2 at regular or necessary times). 4 times, 5 times, etc.), based on information from the measuring instrument, the soft water generator 3 automatically regenerates the reclaimed water WS stored in the reclaimed water reservoir 2 via a pumping means, a regeneration on-off valve, etc. A configuration is adopted in which the water softening means 31 of the soft water generating unit 3 is automatically regenerated (adhered matter removed) by being pumped to the soft water generating unit 3.

  Therefore, the reclaimed water storage unit 2 is connected to the main pipe 1 via the first three-way switching valve 7 and the sub pipe 12. The reclaimed water storage unit 2 of the embodiment creates a required amount of “regenerated water WS” by mixing hard water as raw water HW with a required amount of salt S that has been charged or stored in advance. The reclaimed water WS is automatically sent to the soft water generating unit 3 by a predetermined amount by the pumping means 22 controlled by the control unit 45 described later.

  FIG. 5 shows an example of the reclaimed water storage unit 2. The reclaimed water storage unit 2 has a volume of, for example, 100 l, and a storage tank main body 14 to which a raw water suction port 13 at the upper end thereof is connected to a sub pipe 12 branched from the main pipe 1 via the first three-way switching valve 7. A substantially horizontal salt support 16 positioned above the reclaimed water supply port 15 at the lower end of the storage tank main body 14 and provided in the storage tank main body 14, and the storage tank main body It consists of a float valve 17 having a float that is displaced in the vertical direction depending on the level of the reclaimed water WS. The float valve 17 is a mechanical fluid on-off valve installed in, for example, a bathroom (toilet). The float valve 17 can be replaced with, for example, an electric water level sensor.

  As shown in FIG. 6, the salt support 16 preferably has a net shape in which industrial salt S (a salt having a particle size larger than the salt support mesh 16 a) does not fall on the bottom surface 14 a of the storage tank body 14. The body is used. A plurality of projecting pieces 18 capable of supporting the net-like salt support 16 are provided on the left and right or front and rear sides on the inner wall side surface 14b of the lower end portion of the storage tank body 14.

  As described above, the reason why the salt support 16 is raised from the bottom surface 14a of the storage tank body 14 is to prevent the reclaimed water supply port 15 from being clogged with the solid industrial salt S. The salt support 16 may be in a container shape or a bag shape.

  As described above, the reclaimed water WS of the reclaimed water storage unit 2 is composed of the raw water HW such as well water and lake water and the industrial salt S supported by the net-like salt support 16 mixed with each other in the storage tank body 14. Generated. The reclaimed water WS of the reclaimed water storage unit 2 is regenerated through a reclaimed water supply pipe 21, a pressure feeding means (for example, a salt water pump) 22 and a regeneration on-off valve (for example, a salt water electromagnetic valve) 23 provided in the reclaimed water supply pipe. Then, it is sent to the soft water generator 3 that can regenerate and generate soft water via the main pipe 1 on the downstream side of the connection point of the first three-way switching valve 7.

  For example, as shown in FIG. 5 (disposed outside the storage tank body 14), the reclaimed water supply pipe 21 is connected to the lower end of the reclaimed water storage section 2 and the main pipe 1 upstream of the soft water generating section 3, It has a pressure feeding means 22 for pumping the reclaimed water WS of the reclaimed water storage section 2 to the production tank of the soft water generating section 3, and an open / close valve 23 for controlling (stopping / flowing) the flow of the reclaimed water WS from the pressure feeding means. The flow meter 8 described above is provided at an appropriate portion of the main pipe 1 between the reclaimed water supply pipe 21 and the soft water generating unit 3, and measures the flow rate of the reclaimed water WS as a “pulse signal”. Is sent to the controller 45 shown in FIG.

  Next, the soft water production | generation part 3 is demonstrated with reference to FIG.7 and FIG.8. During the regeneration, the soft water generating unit 3 receives a required amount of the regenerated water WS stored in the reclaimed water storage unit 2 into the generation tank 30 and sets it in a so-called salted state for a required time so as to soften the water (for example, granular ion exchange). Resin) 31 is regenerated.

  Thus, the soft water generation unit 3 includes a cylindrical generation and regeneration tank (referred to as a “generation tank” for convenience) 30 and a granular or granular ion exchange resin 31 provided in the generation tank 30. The production tank 30 has an upper inflow port portion 32 connected to an upper inflow port portion 32 and a substantially vertical pipe-shaped delivery pipe 33, respectively.

  The ion exchange resin 31 of the embodiment is desirably a chloride ion type granular strong base anion exchange resin, and this kind of ion exchange resin allows ion exchange of nitrate nitrogen and nitrite nitrogen contained in the raw water HW. Removed by. Thus, the granular ion exchange resin 31 of the soft water production | generation part 3 is an anion exchange resin which can decompose | disassemble a neutral salt without being influenced by the pH of raw | natural water HW.

  Therefore, as long as the neutral salt can be decomposed, the anion exchange resin may be replaced with a laminated desalting membrane member. Moreover, not only when only the granular ion exchange resin 31 is housed in the production tank 30, but also a ceramic-based adsorbent that is a heavy metal adsorbent may be appropriately coexisted with the ion exchange resin.

In this embodiment, at the time of regeneration, the raw water HW entering from the inlet 32 of the production tank 30 is preferably smaller than the amount of the recycled water WS stored in the recycled water storage unit 2. When the ion exchange resin 31 is regenerated and soaked in, for example, 80 l of reclaimed water WS for 40 minutes (salted) in the regeneration tank 30 during regeneration, hardness components HT such as calcium, magnesium, and the like attached thereto are removed ( In other words, it is washed cleanly). After the regeneration, the treated water (salt water containing the removed hardness component) WS1 is automatically discharged from the discharge pipe 10 via the second three-way switching valve 9.
For example, as shown in FIGS. 1 and 3, the discharge pipe 10 branches from the second three-way switching valve 9 and is connected to the main pipe 1 between, for example, the soft water generator 3 and the hardness measuring means 11. The hardness measuring means 11 is a high-precision in-line water hardness meter that measures the hardness of the soft water generated by the soft water generator 3, and in the embodiment, the high-precision water called "EC" by those skilled in the art. A hardness meter is used. The “EC” can be provided singly or in plural at appropriate locations such as the main pipe 1 and the drinking water reservoir 75.

Next, the soft water storage unit 4 is connected to the main pipe 1 on the downstream side of the connection point CP of the soft water generation unit 3 and stores the soft water generated by the soft water generation unit 3. The soft water reservoir 4 has a soft water outlet 38 on one side wall of the water tank body 36. The soft water generating unit 3 is preferably larger in capacity than the reclaimed water storage unit 2 and approximately twice as large as the reclaimed water storage unit 2. Moreover, since the soft water production | generation part 3 has the meaning as a primary storage part, Preferably it consists of the water tank main body 36 and the cover body 37. FIG.
On the other hand, a level meter (for example, an electrode meter) 39 for detecting the liquid level is provided at an appropriate location of the lid 37. The level meter 39 detects the level of soft water (SW) as drinking water in the aquarium body 36 and sends the detection signal to the control unit 45.

  FIG. 4 is a schematic explanatory diagram of the control system. In particular, the control unit 45 and the raw water on-off valve 6, the first three-way switching valve 7, the pressure feeding means 22, which are respectively provided at appropriate positions of the main pipe 1 and the reclaimed water supply pipe 21 An on-off valve 23 for reclaimed water, a flow meter 8, a second three-way switching valve 9, a hardness measuring means 11, and one or more level meters 39 are shown.

  For example, when the controller 45 regenerates to remove the hardened component adhering to the water softening means, the first three-way switching valve 7 provided in the main pipe 1 on the upstream side of the reclaimed water supply pipe 21 described above, the reclaimed water supply pipe 21 The provided pressure feeding means 22 and the reclaimed water opening / closing valve 23 are controlled to supply the reclaimed water WS stored in the reclaimed water storage unit 2 to the soft water generating unit 3 automatically.

  Therefore, the control unit 45 is connected to the solar module (solar power generation power source) 53 as described above. In addition, it has an input unit 46 for receiving measurement information (A) such as an input signal from the operation switch 44, measurement information from the hardness measuring means 11, and liquid level information from the level meter 39. A timer 49 is provided together with a storage unit 48 that stores a control program 47. Further, a control signal (B) is output from the output unit 50.

  Therefore, the control unit 45 outputs information based on the control program 47, the timer 49, the measurement information (A), etc., and based on the control program 47, and sends the control signal (B) to the on / off valve 5 for the raw water. This is sent to the three-way switching valve 7, the pressure feeding means 22, the regenerative water on-off valve 23, the second three-way switching valve 9, and the like.

  Next, FIG. 7 shows specific constituent members of the soft water generator and also shows the flow of each fluid. Here, the flow during regeneration will be mainly described with reference to FIGS. To do. FIG. 8 is an explanatory diagram in which the hardness component HT adheres to the water softening means 31. As shown in FIG. 8, when the water softening device X is used for a certain period, the hardness component HT adheres to the water softening means 31. Therefore, it is necessary to regenerate (clean) the water softening means 31.

  FIG. 9 is a schematic explanatory diagram when the water softening means 31 is regenerated. As described above, sufficient regeneration water WS that has been generated is secured in the regeneration tank body 14 of the regeneration water storage unit 2. At this time, the controller 45 closes the raw water on-off valve 5 to stop the flow of the raw water HW. Further, since the liquid level of the regeneration tank main body 14 has been raised to a predetermined water level, the operation of the float valve 17 is switched to the stopped state, and the first three-way switching valve 7 is switched to the “closed” state. Therefore, the raw water HW does not flow into the soft water generator 3.

  Therefore, the control unit 45 controls the regenerative water on-off valve 23 to the “open” state and activates the pressure feeding means (salt water pump) 22. At this time, the “timer 49” is started so that the reclaimed water WS of the reclaimed water reservoir 2 does not flow into the soft water generator 3 more than necessary. In addition, in the embodiment, the flow rate of the reclaimed water WS flowing to the main pipe 1 via the reclaimed water supply pipe 21 is measured by the flow meter 8. The reclaimed water WS flows into the production tank 30 through the flow meter 8. Therefore, the control unit 45 stops the pumping means 22 and “closes” the regenerative water on-off valve 23 when a predetermined time (for example, 3 minutes) elapses or / and based on the measurement information (A) of the flow meter 8. Control to the state. As a result, the production tank 30 is filled with, for example, 80 l of recycled water WS. Then, the granular ion exchange resin 31 is salted with regenerated water (salt water) WS for a required time (for example, 40 minutes). As a result, as shown in FIG. 10, the hardness component HT adhering to the granular ion exchange resin 31 is removed. In addition, FIG. 10 is a conceptual diagram in which the water softening means 31 is immersed in regenerated water for a required time, and the hardness component HT is removed from the water softening means 31.

  FIG. 11 is an explanatory diagram for draining the treated water WS1 from the soft water generator 3 after regeneration. At this time, the control unit 45 controls the raw water on-off valve 6 and the first three-way switching valve 7 to the “open” state, and the second three-way switching valve so that the treated water WS1 does not flow into the soft water storage unit 4. 9 is switched. As a result, the raw water HW is introduced into the production tank 30 via the main pipe 1 as shown by the arrow, so the reclaimed water WS in the production tank is discharged from the discharge pipe 10 as the treated water WS1. This discharge time is processed based on the time information of “timer 49”, for example. After a predetermined time has elapsed, the controller 45 estimates that all of the reclaimed water WS in the production tank has been discharged, and switches the second three-way switching valve 9.

  Then, as shown in FIG. 12, the raw water HW flows into the production tank 30 after passing through the raw water on-off valve 5, the first water purification treatment unit 6, and the first three-way switching valve 7 of the main pipe 1. The hard water is softened as shown in FIG. 5, and the soft water SW flows into the soft water reservoir 4 through the second three-way switching valve 9 and the hardness measuring means 11 in order. The liquid level of the soft water SW in the soft water storage unit 4 is measured by the level meter 39, and the measurement information (A) is sent to the control unit 45. The control unit 45 appropriately processes the measurement information (A). And in embodiment, since the hardness measurement means 11 is provided in the appropriate location (for example, between the 2nd three-way switching valve 9 and the soft water storage part 4) of the main pipe 1, the hardness information which flows through the main pipe 1 is this hardness measurement means 11. It is determined whether or not to enter the reproduction stage with reference to the “threshold value of hardness information (varies by country)” recorded from the storage unit 48 and recorded in the storage unit 48.

  Next, FIG. 15 is an explanatory diagram in the case where the reverse osmosis membrane cleaning processing unit 62 is included and the two high-pressure vessels 72 a and 72 a are provided in the reverse osmosis membrane processing unit 61. If the right side of the cleaning liquid storage tank 73 shown by the block is the clean water inlet side (primary), the left side of the cleaning liquid storage tank 73 is the cleaning water outlet side (secondary). Therefore, reference sign b1 is a control valve on the outlet side of the washing water. A cleaning pump 74 that is driven and controlled by the control unit 45 is provided between the control valve b1 and the cleaning liquid storage tank 73, and when one of the two high-pressure vessels 72a and 72a comes to the cleaning time, the cleaning pump 74 The pump 74 is driven for a predetermined time. As a result, the cleaning water in the cleaning liquid storage tank 73 is sent to the high-pressure vessel 72a. In FIG. 15, a large number of control valves are provided at appropriate places. Here, for convenience, the control valve on the soft water inlet side provided on the main pipe 1 side is referred to as “a”, while the membrane of the high-pressure vessel 72a. The control valve on the side that sends the drinking water that has passed through 72b to the drinking water reservoir is identified as “b”. The control valve a for sending soft water to the two high-pressure vessels 72a and 72a and the control valve b for sending drinking water are selectively used based on a control program 47 and a timer 49 stored in the storage unit of the control unit 45. Is done. Therefore, when any one of the plurality of filtering means 72 is washed, the other filtering means 72 can be used as it is (automatic rotation is possible).

  FIG. 16 shows an embodiment in which a reverse osmosis membrane cleaning processing unit 62 is included and three high-pressure vessels 72 a are provided in the reverse osmosis membrane processing unit 61. That is, the filtering means 72 is three embodiment. In this way, the number of filtering means 72 may be increased as appropriate. In addition, the code | symbol uses FIG. 15 and omits detailed description. Moreover, the discharge line L1 which discharges the treated water after washing | cleaning is provided suitably (refer FIG. 1).

  Next, FIG. 17 is an explanatory diagram showing an example of a flowchart of the reverse osmosis membrane cleaning processing unit 62. Hereinafter, the reference numerals will be simplified and briefly described. Note that t1, t2, etc. mean the passage of time. Here, only one high-pressure vessel 72a will be described.

  First, S <b> 1 is a process of sending purified water from the reverse osmosis membrane processing unit 61 to the reverse osmosis membrane cleaning processing unit 62. Since this step is prior to the start of cleaning of the high-pressure vessel 72a, it is preferably performed at an early timing t1 before cleaning one of the high-pressure vessels 72a. At this time, a predetermined time for sending the purified water to the cleaning liquid storage tank 73 is counted by the timer 49.

  Next, when the predetermined time t2 has elapsed, the film cleaning starts S2. The membrane cleaning start S2 is started after the purified water supply and the membrane cleaning start S2 are substantially simultaneous or slightly delayed. S3 is a film cleaning time, and it is monitored whether or not a predetermined time t3 has elapsed since the timer 49 counted the time of the film cleaning start S2. When the predetermined time t3 has elapsed, it is the film cleaning end S4. In S5, a predetermined period of time t4 is monitored. If the predetermined period of time t4 has elapsed, the cleaning of the cleaned high-pressure tank 72a becomes usable S6. During S1 to S6, the other high-pressure vessel 72a is used for continuously producing drinking water (automatic low tension).

  Next, FIG. 18 is a schematic explanatory diagram illustrating an example of the drinking water storage unit 63. As described above, the drinking water storage unit 63 includes the drinking water storage tank 75 and detection means 76 for detecting the water level. In FIG. 18, control valves and pumps are omitted.

  Next, FIG. 19 is a schematic explanatory view showing an example of the medicine supply unit 64. As described above, the medicine supply unit 64 includes the infusion pump 77 and the medicine processing tank 78. In the medicine processing tank 78, for example, hypochlorite sodium or similar medicine is instilled from the supply nozzle. Sent to. And the treated water of the chemical | medical agent processing tank 78 makes the said chemical | medical agent mix and react with a process liquid reliably over sufficient time, Then, it is sent to the drinking water storage part 63 as a chemical | medical agent process liquid. In the embodiment, the pipe for supplying the processing liquid is appropriately provided with a control valve c and an injection pump 77 whose opening / closing is controlled by the control unit 45.

  Next, FIG. 20 is a schematic explanatory diagram illustrating an example of the final water purification treatment unit 65. The last water purification process part 65 is connected to the 1st water purification member 81 connected to the drinking water storage tank 75 via the transfer valve 79 provided in the downstream of the main pipe 1, and the control valve d by which opening and closing is controlled. A second water purification member 82 is provided.

  Accordingly, the first water purification member 81 includes a water purification tank 81a having the same configuration as the generation tank 30 described above, and granular activated carbon 81b filled in the water purification tank. Description of the detailed matters (shape, inlet, pipe, outlet, etc.) of the water purification tank 81a is omitted.

  The second water purification member 82 includes a water purification tank 82a and a hollow fiber membrane 82b installed in the water purification tank. Here, detailed descriptions of the water purification tanks 81a and 82a are omitted. In the embodiment, since the last water purification treatment unit 65 is provided, “complete” and “delicious mineral water” can be obtained.

  Finally, FIG. 21 is an explanatory diagram of the water supply unit 66. Moreover, FIG. 22 is explanatory drawing which shows arrangement | positioning of each process part and electric equipment from the planar view of this invention. As apparent from FIG. 22, the drinking water storage unit 63 takes up more space than other water purification processing units, electrical devices, and the like. Thus, in this invention, since the structure of each water-purification process part was made rational (simple thing), the internal space of the container 51 can be used effectively and the drinking water storage tank 75 can be enlarged. it can.

  INDUSTRIAL APPLICABILITY The present invention is used as a drinking water production apparatus including a water softening device that softens raw water such as well water and lake water.

X ... water purification equipment,
HW ... Raw water, S ... Salt water,
WS ... recycled water, WS1 ... treated water (drainage),
SW ... soft water, CP ... connection point,
A ... Soft water device, B ... Drinking water treatment device,
1 ...
a, b, a1, b1... a plurality of control valves,
2 ... Reclaimed water storage unit, 3 ... Soft water generation unit,
4 ... Soft water storage unit, 6 ... First water purification treatment unit,
7: First three-way switching valve (direction control valve),
8 ... Flow meter,
9: Second three-way switching valve (direction control valve),
10 ... discharge pipe,
11 ... hardness measuring means, 14 ... storage tank body,
17 ... float valve, 16 ... salt support,
21 ... recycled water supply pipe, 22 ... pressure feeding means,
23 ... Open / close valve for reclaimed water, 30 ... Production tank,
31 ... Water softening means, 40 ... Solenoid valve (control valve),
41 ... Storage battery, 42 ... Inverter,
43 ... distribution board, 45 ... control unit,
47 ... control program, 48 ... storage unit,
49 ... Timer, 50 ... Output section,
51 ... container, 53 ... solar module,
61. Reverse osmosis membrane treatment unit,
62 ... Reverse osmosis membrane cleaning processing section,
63 ... Drinking water storage unit, 64 ... Drug supply unit,
65 ... Last water purification section
66 ... mineral water supply part (water supply part),
71 ... high pressure pump, 72 ... filtration means,
72a ... high pressure vessel, 72b ... membrane,
74 ... washing pump, 76 ... detection means,
75 ... Drinking water storage tank, 77 ... Infusion pump,
78 ... Chemical treatment tank, 79 ... Transfer pump,
81 ... 1st water purification member, 82 ... 2nd water purification member,
91 ... lights, 92 ... air conditioning.

Claims (7)

In a water purification apparatus, a main pipe is provided in a container, a plurality of water purification treatment sections are connected from the upstream side to the downstream side of the main pipe, and drinking water treated in the last water purification treatment section is sent to a water supply section. The container is provided with a solar module, a storage battery that stores electricity generated by the solar module, and a control unit that uses the storage battery as a power source is provided in the container, while the water purification treatment section is provided upstream of the main pipe. Recycled water that automatically connects to the first water purification unit provided and a secondary pipe branched from the main pipe via a directional control valve, and automatically generates reclaimed water mixed with salt and raw water, and stores the reclaimed water in a required amount And a soft water generating unit that receives the reclaimed water in the reclaimed water reservoir and can regenerate the water softening means with the reclaimed water and can make the raw water soft by the water softening means. A soft water storage unit that stores the soft water generated in the soft water generation unit, and a reverse osmosis membrane processing unit that is connected to the soft water storage unit, connected to the main pipe downstream from the connection point of the soft water generation unit, A reverse osmosis membrane cleaning treatment unit connected to the reverse osmosis membrane treatment unit so that the reverse osmosis membrane material of the reverse osmosis membrane treatment unit can be automatically washed by a control signal of the control unit, and the reverse osmosis membrane A water purification apparatus comprising a drinking water storage unit connected to a processing unit, and the last water purification processing unit and water supply unit connected to the drinking water storage unit. The water purification apparatus according to claim 1, wherein a chemical supply section is disposed with respect to the drinking water storage section. In the water purification apparatus of Claim 1, the last water purification process part has a 1st water purification member and a 2nd water purification member connected to this through the transfer pump provided in the downstream of the said main pipe. Water purification equipment. 2. The water purification apparatus according to claim 1, wherein the container is provided with at least one of a lighting fixture or an air conditioner that uses at least the storage battery as a power source. 2. The water purification apparatus according to claim 1, wherein when the water softening means is regenerated, the control unit includes a directional control valve, a reclaimed water on-off valve provided in a reclaimed water supply pipe that connects the main pipe and the reclaimed water storage unit, and A water purification apparatus characterized by controlling each of the pumping means and automatically supplying the reclaimed water stored in the reclaimed water reservoir to the soft water generator. In the water purification apparatus of Claim 1, the said reclaimed water storage part is positioned higher than the storage tank main body which the raw | natural water suction port part of an upper end part connects, and the reclaimed water supply port part of the lower end part of this storage tank main body. A water purification apparatus comprising: a net-like salt support provided in the storage tank main body; and a float valve that is displaced in the vertical direction depending on the level of reclaimed water in the storage tank main body. 2. The water purification apparatus according to claim 1, wherein the main pipe is provided with hardness measuring means for measuring the hardness of soft water.

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