WO2019156012A1 - Dispositif de traitement de l'eau - Google Patents

Dispositif de traitement de l'eau Download PDF

Info

Publication number
WO2019156012A1
WO2019156012A1 PCT/JP2019/003801 JP2019003801W WO2019156012A1 WO 2019156012 A1 WO2019156012 A1 WO 2019156012A1 JP 2019003801 W JP2019003801 W JP 2019003801W WO 2019156012 A1 WO2019156012 A1 WO 2019156012A1
Authority
WO
WIPO (PCT)
Prior art keywords
water
channel
drug
flow path
water flow
Prior art date
Application number
PCT/JP2019/003801
Other languages
English (en)
Japanese (ja)
Inventor
太輔 五百崎
真二郎 野間
廣田　達哉
藤田　浩史
ゆうこ 丸尾
真治 西尾
Original Assignee
パナソニックＩｐマネジメント株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by パナソニックＩｐマネジメント株式会社 filed Critical パナソニックＩｐマネジメント株式会社
Priority to JP2019570728A priority Critical patent/JPWO2019156012A1/ja
Publication of WO2019156012A1 publication Critical patent/WO2019156012A1/fr

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
    • B01D35/02—Filters adapted for location in special places, e.g. pipe-lines, pumps, stop-cocks
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/50—Treatment of water, waste water, or sewage by addition or application of a germicide or by oligodynamic treatment

Definitions

  • the present disclosure relates to a water treatment apparatus including a chemical supply unit and a filtration unit.
  • a chemical supply unit may be disposed upstream of the filtration unit.
  • sterilization treatment and oxidation treatment of the water to be treated are performed by the chemicals supplied from the chemical supply unit to the water to be treated, such as ozone or a chlorine agent.
  • medical agent flows into a filtration part, and the to-be-processed water filtration process is performed.
  • the backwashing water passes through the chemical supply unit, and then the backwashing water is used. It flows downstream of the filtration part via the flow path. Thereafter, the water for backflow cleaning flows from the downstream side of the filtration unit to the upstream side of the filtration unit in a direction opposite to the direction of water flow during normal use.
  • backwashing water flows not only into the filtration unit but also into the chemical supply unit.
  • the chemicals are discharged from the outlet together with the water for backwashing. This water for backwashing is discharged from the outlet.
  • the filtration unit performs cleaning using the medicine by flowing the medicine-treated water containing the medicine supplied from the upstream medicine supply unit. Already applied to the filter media. Therefore, if the chemical-treated water mixed with the chemical is supplied to the filtration unit even during backwashing, the chemical is wasted.
  • the present disclosure has been made in view of such problems of the conventional technology. And the objective of this indication is providing the water treatment apparatus which can suppress that a chemical
  • a water treatment apparatus configured to receive raw water from the raw water flow path that guides raw water and the raw water flow path, and supplies a chemical to the raw water A chemical supply water channel that guides the chemical-treated water supplied with the chemical flowing out from the chemical supply unit, and the chemical-treated water flowing through the chemical-treated water flow channel.
  • a filtration unit having a filter medium for filtering the chemical-treated water, a filtered water channel for guiding the filtered water that has flowed out of the filtration unit, and the raw water flow
  • a backwashing water channel that is connected to the channel and the filtered water channel and guides water for backwashing from the raw water channel to the filtered water channel, and a connection part between the raw water channel and the backwashing water channel Provided in front of the raw water flow path
  • a second normal state that is provided at a connection portion between the switching valve, the filtered water flow path, and the backwash water flow path, and that guides the filtered water from the filtration section to the outlet, and the backwash water flow path
  • a second switching valve that is switched to one of the second back-flow cleaning states that guides the water for back-flow cleaning to the filtration unit via the filtered water flow path, and the chemical-treated water flow path.
  • a drain-off valve which is switched on or is provided with a.
  • a water treatment apparatus includes a raw water channel that guides raw water, a chemical supply unit that is provided so that the raw water flows from the raw water channel, and supplies a chemical to the raw water, and the chemical A drug-treated water channel for guiding the drug-treated water supplied with the drug flowing out from the supply unit; and the drug-treated water channel configured to receive the drug-treated water flowing in the drug-treated water channel.
  • a filtration part having a filtering material for subjecting the water to filtration, a filtered water flow path for guiding filtered water that has flowed out of the filtration part, the raw water flow path, and the filtered water flow path; Connected to the raw water flow path, the reverse flow cleaning water flow path for guiding the water for back flow cleaning from the raw water flow path to the filtered water flow path, and a connecting portion between the raw water flow path and the reverse flow cleaning water flow path, The raw water is guided to the medicine supply unit from A switching valve that is switched to a normal state and a backwashing state that guides the water for backwashing from the raw water channel to the backwashing water channel, and the filtered water channel and the backwashing water channel.
  • a backwashing on / off valve for switching backwashing that switches the backwashing water from the backwashing water channel to the filtration unit via the filtered water channel to the backwashing closed state, and the chemical treatment A closed state for normal use for guiding the drug-treated water flowing through the drug-treated water flow path to the filtration unit, and a flow through the drug-treated water flow path.
  • the backwash water Serial and discharge passage for drainage off valve is switched to either an open state for backwash leading to outlet, and a.
  • the water treatment apparatus of the first aspect or the second aspect of the present disclosure it is possible to suppress the wasteful consumption of the chemical by the backwashing.
  • FIG. 1 It is a schematic diagram for demonstrating the normal use state of the water treatment apparatus of Embodiment 1.
  • FIG. It is a schematic diagram for demonstrating the backwashing state of the water treatment apparatus of Embodiment 1.
  • FIG. It is sectional drawing for demonstrating an example of the chemical
  • FIG. It is sectional drawing for demonstrating an example of the filtration part of the water treatment apparatus of Embodiment 1.
  • FIG. It is a schematic diagram for demonstrating the water treatment apparatus of the 1st modification of Embodiment 1.
  • FIG. It is a schematic diagram for demonstrating the water treatment apparatus of the 2nd modification of Embodiment 1.
  • FIG. It is a schematic diagram for demonstrating the water treatment apparatus of Embodiment 2.
  • FIG. It is a schematic diagram for demonstrating the water treatment apparatus of Embodiment 3.
  • Embodiment 1 The water treatment apparatus 1000 of Embodiment 1 is demonstrated using FIG. 1 and FIG.
  • the water treatment apparatus 1000 includes a raw water flow channel 10, a chemical supply unit 100, a chemical-treated water flow channel 20, a filtration unit 200, and a filtered water flow channel 40. .
  • the water treatment apparatus 1000 includes a backwash water flow path 30, a first switching valve V1, a second switching valve V2, and a drainage on-off valve V3.
  • a pump P for pumping up well water is connected to the raw water flow path 10 as shown by a broken arrow in FIG.
  • tap water or other types of water may be used instead of well water.
  • the raw water flow channel 10 guides raw water made of well water or the like to the medicine supply unit 100.
  • the medicine supply unit 100 is provided so as to receive raw water from the raw water flow path 10.
  • the medicine supply unit 100 has a medicine supplied to the raw water therein.
  • the medicine supply unit 100 is provided in a bypass channel connected in parallel to the raw water channel 10 in the branching unit 21 and the junction unit 22.
  • the drug supply unit 100 has a drug tank in which a drug can be put into the container part of the drug supply unit 100.
  • the drug is mixed in the raw water rising from below in the drug supply unit 100. This will be described in detail later using FIG.
  • the medicine-treated water supplied with the medicine flows out from the medicine supply unit 100 to the medicine-treated water flow path 20.
  • the drug-treated water flow path 20 guides the drug-treated water supplied with the drug flowing out from the drug supply unit 100 to the filtration unit 200.
  • the drug is, for example, a chlorine-based drug that releases chlorine ions into raw water. Therefore, the drug has a bactericidal action.
  • the drug may be anything such as a tablet holding a certain shape or a powder that does not have a certain shape.
  • the drug may be made of a liquid or a viscous material.
  • the filtration unit 200 is provided so as to receive chemical-treated water flowing through the chemical-treated water flow path 20 as indicated by a broken-line arrow.
  • the filtration unit 200 includes a filter medium that performs filtration processing on water that has been subjected to chemical treatment.
  • the filter medium is gravel or sand particles.
  • the filtered water flow path 40 guides filtered water that has flowed out of the filtering unit 200 to the outlet 60, for example, a faucet used by the user.
  • the backwash water channel 30 is connected to the raw water channel 10 and the filtered water channel 40.
  • the backwash water flow path 30 guides backflow wash water from the raw water flow path 10 to the filtered water flow path 40 as indicated by the dashed arrows in FIG.
  • the first switching valve V1 is provided at the connection between the raw water flow channel 10 and the backwash water flow channel 30.
  • the first switching valve V1 is a so-called three-way valve.
  • the first switching valve V1 is switched to either the first normal state or the first backflow cleaning state.
  • the first switching valve V ⁇ b> 1 in the first normal state guides raw water from the raw water flow path 10 to the medicine supply unit 100, as indicated by a dashed arrow in FIG. 1.
  • the first switching valve V ⁇ b> 1 in the first backflow cleaning state guides water for backflow cleaning from the raw water flow path 10 to the backflow cleaning water flow path 30, as indicated by a dashed arrow in FIG. 2.
  • the second switching valve V2 is provided at the connection between the filtered water flow path 40 and the backwash water flow path 30.
  • the second switching valve V2 is a so-called three-way valve.
  • the second switching valve V2 is switched to either the second normal state or the second backflow cleaning state.
  • the second switching valve V2 in the second normal state guides the filtered water from the filtering unit 200 to the outlet 60 as indicated by the dashed arrow in FIG.
  • the second switching valve V2 in the second backwashing state is used for backwashing from the backwashing water channel 30 to the filtration unit 200 via the filtered water channel 40, as indicated by a broken arrow in FIG. Guide the water.
  • the drainage on-off valve V3 is provided in the discharge channel 45 connected to the chemical-treated water channel 20.
  • the drainage on-off valve V3 is switched between a closed state and an open state.
  • the drainage on-off valve V3 in the closed state guides the chemical-treated water flowing through the chemical-treated water flow path 20 to the filtration unit 200, as indicated by the dashed arrows in FIG.
  • the drain on-off valve V3 in the open state is configured to discharge the water for backflow cleaning that flows through the chemical-treated water flow path 20 from the discharge port 50 of the discharge flow path 45, as indicated by the dashed arrows in FIG. Lead.
  • the water for backflow cleaning does not pass through the drug supply unit 100. Therefore, wasteful consumption of the drug by backflow cleaning is suppressed.
  • the first switching valve V1, the second switching valve V2, and the drain on / off valve V3 are each manually operated by the user.
  • the user manually switches the first switching valve V1 to the first normal state, switches the second switching valve V2 to the second normal state, and closes the drain on-off valve V3.
  • the water at the time of normal use is the raw water flow path 10, the first switching valve V1, the chemical supply section 100, the chemical-treated water flow path 20, the filtration section 200, as shown by the dashed arrows in FIG. It flows through the filtered water channel 40 and the second switching valve V2 in this order.
  • the filtered water flows out from the tap as the outlet 60 used by the user.
  • the water treatment apparatus 1000 may have a further water treatment unit that performs some further treatment on the filtered water downstream of the filtered water flow path 40.
  • the user manually switches the first switching valve V1 to the first backwashing state, switches the second switching valve V2 to the second backwashing state, and opens / closes the drainage valve.
  • V3 is switched to the open state.
  • the water for backflow cleaning is the raw water flow path 10, the first switching valve V1, the backflow cleaning water flow path 30, the second switching valve V2, the filtered water flow, as shown by the broken arrows in FIG. It flows through the channel 40, the filtration unit 200, the chemical-treated water flow path 20, and the drainage on-off valve V3 in this order.
  • the water for backflow cleaning flows out from the discharge port 50 of the discharge channel 45. That is, the medicine for the medicine supply unit 100 is not supplied to the water for backflow cleaning. That is, no chemical is consumed during backwashing.
  • the switching operation or opening / closing operation of the first switching valve V1, the second switching valve V2, and the drainage opening / closing valve V3 is automatically performed by a control unit and a mechanism that receive a command signal from an operation unit operated by a user. May be executed.
  • the user can perform the backwashing by simply operating the operation unit, for example, by simply touching an icon on the touch panel without manually operating each valve. That is, the first switching valve V1, the second switching valve V2, and the drainage on-off valve V3 are collectively switched to either the normal state or the backflow cleaning state by the control unit. Therefore, the user's operation burden on the first switching valve V1, the second switching valve V2, and the drain on / off valve V3 is reduced.
  • the water treatment apparatus 1000 has a main flow path constituting the raw water flow path 10 from the branching section 21 to the merge section 22, and the main flow path at the branch section 21 and the merge section 22. And a bypass flow path connected in parallel.
  • the medicine supply unit 100 is provided in the bypass channel.
  • the upstream part of the drug supply unit 100 constitutes a part of the raw water channel 10
  • the downstream part of the drug supply unit 100 constitutes a part of the drug-treated water channel 20. To do.
  • the drainage on-off valve V3 is provided between the chemical-treated water flow path 20 where the main flow path and the bypass flow path merge, that is, between the branch portion 21 and the filtration portion 200. According to this, since the water for backflow cleaning does not flow into the raw water flow path 10, the water for backflow cleaning can be reliably prevented from flowing into the medicine supply unit 100.
  • the main flow path from the branching portion 21 to the merging portion 22 of the raw water flow passage 10 may be unnecessary if the amount of raw water flowing into the medicine supply portion 100 is adjusted.
  • the drug supply unit 100 includes a drug tank 121, an introduction channel 111 ⁇ / b> A, a lead-out channel 111 ⁇ / b> C, and a drug container 140 in the container unit 112.
  • the raw water in the medicine supply unit 100 and the water that has been subjected to the medicine treatment are integrally drawn as water W.
  • the chemical tank 121 has a cup-like shape and has a communication hole 121A on the bottom surface thereof.
  • a dispersion material F made of a group of gravel having a thickness t is provided inside the chemical tank 121.
  • the dispersion material F is gravel having dispersed gaps.
  • Dispersant F has a gap that allows raw water to come into contact with medicine CA and that medicine-treated water supplied with medicine CA flows to communication hole 121A.
  • a mesh member 130 is provided between the dispersion material F and the bottom surface of the chemical tank 121.
  • the mesh member 130 suppresses the passage of each particle constituting the dispersion material F, but has a size that allows raw water to pass through.
  • the medicine container 140 has a cylindrical shape and has a medicine CA therein.
  • the drug CA may be a solid, liquid, or viscous material.
  • the bottom of the medicine container 140 is constituted by a permeable membrane 142.
  • the drug CA may be placed directly on the dispersion material F.
  • the permeable membrane 142 transmits the raw water dispersed by the dispersion material F.
  • the pore diameter of the permeable membrane 142 is a size that does not allow the drug CA supported by the permeable membrane 142 to permeate before the raw water passes through the permeable membrane 142 and contacts the drug CA.
  • the pore size of the permeable membrane 142 is large enough to allow the substance constituting the drug CA contained in the drug-treated water to pass through after the raw water passes through the permeable membrane 142 and comes into contact with the drug CA. It is.
  • the introduction channel 111A is connected to the raw water channel 10 and receives the raw water.
  • the introduction flow path 111 ⁇ / b> A is connected to the bottom surface portion from below the bottom surface portion of the medicine tank 121.
  • the raw water passes through the dispersion material F, then permeates the permeable membrane 142, and comes into contact with the chemical CA in the chemical container 140, so that it is treated with chemical. Thereafter, the drug-treated water containing the drug CA passes through the permeable membrane 142 and is mixed into the raw water existing in the gaps in which the dispersion material F is dispersed.
  • the chemical-treated water in the chemical tank 121 passes through the communication hole 121A and falls into the outlet channel 111C below the communication hole 121A.
  • the outlet channel 111C guides the drug-treated water that has flowed down from the inside of the drug tank 121 through the communication hole 121A to the drug-treated water channel 20.
  • the filter unit 200 has a filter medium FL made of sand or gravel spread within the filter unit 200 to a certain height from the bottom of the tank.
  • the chemical-treated water flows from the chemical-treated water flow path 20 into the filtration unit 200, and the filter medium FL is passed through the filtration unit 200. It falls from the top to the bottom to pass.
  • the scum S contained in the chemical-treated water in the filtration unit 200 adheres to the filter medium FL, thereby being removed from the chemical-treated water in the filtration unit 200. Thereafter, the filtered water from which the scum S has been removed flows into the filtered water flow path 40.
  • the water for backflow cleaning that has flowed from the filtered water flow path 40 into the filtration unit 200 flows in the direction opposite to the direction indicated by the arrow in FIG. Therefore, the dirty water for backflow cleaning including the scum S adhering to the filter medium FL flows toward the chemical-treated water flow path 20 and is discharged from the discharge port 50 (see FIG. 2) of the discharge flow path 45. .
  • the filtration unit 200 has a structure as shown in FIG. 4, but any filter may be used as long as it can be backwashed.
  • a water treatment apparatus 1000 according to a first modification of the first embodiment will be described with reference to FIG.
  • a pressure regulating valve that adjusts the pressure of raw water in the main flow path between the branching portion 21 and the merging portion 22 of the raw water flow passage 10. PV is provided. Further, a flow rate adjustment valve FV is provided in the raw water flow channel 10 upstream of the drug supply unit 100 in the bypass flow channel between the branching unit 21 and the merging unit 22.
  • a water treatment apparatus 1000 according to a second modification of the first embodiment will be described with reference to FIG.
  • the water treatment apparatus 1000 of the second modification of the first embodiment has a structure that is substantially the same as the water treatment apparatus 1000 of the first modification.
  • the water treatment apparatus 1000 according to the second modified example is provided with two bypass channels in parallel with the main channel between the branching unit 21 and the junction 22.
  • Two drug supply units 100 are provided in each of the two bypass channels.
  • the two drugs present in the two drug supply units 100 may be of the same type, but may be of different types.
  • the upstream side of the drug supply unit 100 of the two bypass channels is the raw water channel 10. Downstream of the drug supply unit 100 of the two bypass channels is a drug-treated water channel 20.
  • the flow rate adjustment valve FV is provided in the raw
  • a pressure control valve PV is provided in the main flow path between the branching section 21 and the merging section 22 of the raw water flow path 10.
  • an additional valve or the like is provided in at least one of the flow paths of the present embodiment. May be provided.
  • Embodiment 2 The water treatment apparatus 1000 of the present embodiment is almost the same as the water treatment apparatus 1000 of the first embodiment. Hereinafter, the point which the water treatment apparatus 1000 of this Embodiment differs from the water treatment apparatus 1000 of Embodiment 1 is mainly demonstrated.
  • the water treatment apparatus 1000 according to the second embodiment will be described with reference to FIG.
  • the drainage on-off valve V3 is connected to the drug-treated water flow path 20 as a bypass flow path on the downstream side of the drug supply unit 100. It is provided in the discharge channel 45. That is, the drainage on-off valve V3 is provided in the discharge channel 45 connected to the drug-treated water channel 20 between the drug supply unit 100 and the merging unit 22. Also with the water treatment apparatus 1000 of the present embodiment, it is possible to prevent the backflow water from flowing into the chemical supply unit 100.
  • a one-way valve is provided in the main flow path between the branch part 21 and the merge part 22 of the raw water flow path 10.
  • the one-way valve allows the raw water to flow through the main flow path as the raw water flow path 10 from the branching portion 21 to the merging portion 22 in a normal use state.
  • the one-way valve in this case prevents the water for backflow cleaning from flowing into the medicine supply unit 100 from the filtration unit 200 via the junction unit 22 and the branch unit 21 in the backflow cleaning state.
  • the water pressure of the raw water remaining in the raw water flow path 10 from the branching unit 21 to the drug supply unit 100 may be It becomes resistance.
  • the resistance due to the water pressure of the raw water remaining in the raw water flow path 10 suppresses the backwash water from flowing from the merging section 22 to the medicine supply section 100 via the branch section 21. Therefore, the aforementioned one-way valve provided in the main flow path between the branch portion 21 and the merge portion 22 is not an essential configuration.
  • the discharge channel 45 having the drain on-off valve V3 is provided in the water treatment device 1000 of the second modification of the first embodiment shown in FIG. You may be connected to the confluence
  • the water treatment apparatus 1000 of the present embodiment is almost the same as the water treatment apparatus 1000 of the first or second embodiment.
  • the point which the water treatment apparatus 1000 of this Embodiment differs from the water treatment apparatus 1000 of Embodiment 1 or 2 is mainly demonstrated.
  • the water treatment apparatus 1000 of Embodiment 3 is demonstrated using FIG.
  • the water treatment apparatus 1000 includes a back-flow cleaning on-off valve V4 instead of the second switching valve V2 of the water treatment apparatus 1000 according to the first embodiment.
  • the backflow cleaning on-off valve V4 is provided in the filtered water flow path 40 on the downstream side of the filtered water from the connection portion between the filtered water flow path 40 and the backflow cleaning water flow path 30.
  • the backflow cleaning on-off valve V4 is switched to either the normal open state or the backflow cleaning closed state.
  • the normally opened back-flow cleaning on-off valve V4 guides filtered water from the filtering unit 200 to the outlet 60 via the filtered water flow path 40.
  • the backflow cleaning on-off valve V4 in the backflow cleaning closed state guides backflow cleaning water from the backflow cleaning water channel 30 to the filtration unit 200 via the filtered water channel 40. Even with this configuration, the backwash water does not pass through the medicine supply unit 100. Therefore, wasteful consumption of the drug by backflow cleaning is suppressed.
  • the switching valve V1 (same as the first switching valve V1 in the first embodiment), the backflow cleaning on-off valve V4, and the drainage on-off valve V3 are provided by the user.
  • Manually operated by the user manually switches the switching valve V1 to the normal state, switches the backwashing on / off valve V4 to the normal open state, and switches the drainage on / off valve V3 to the normal closed state.
  • the user manually switches the switching valve V1 to the backwashing state, switches the backwashing on / off valve V4 to the backwashing closed state, and opens the drainage on / off valve V3 to the backwashing open state. Switch to.
  • the switching operation or switching operation of the switching valve V1, the backwashing on-off valve V4, and the drainage on-off valve V3 is automatically executed by a control unit and a mechanism that receive a command signal from the operation unit operated by the user. May be.
  • the user can execute the backwash without operating each valve manually only by operating the operation unit. That is, the switching valve V1, the backflow cleaning on-off valve V4, and the drainage on-off valve V3 are collectively switched to either the normal state or the backflow cleaning state by the control unit. Therefore, the user's operation burden on the switching valve V1, the backwashing on / off valve V4, and the drain on / off valve V3 is reduced.
  • the backwashing on / off valve V4 of the present embodiment is different from the backwashing on / off valve V4 in the water treatment of the first modification (see FIG. 5) and the second modification (see FIG. 6) of the first embodiment. It may be used instead of the second switching valve V2 of the device 1000. Moreover, the on-off valve V4 for backflow cleaning of the present embodiment may be used instead of the second switching valve V2 of the water treatment apparatus 1000 (see FIG. 7) of the second embodiment.
  • the water treatment apparatus 1000 adds the components of the respective embodiments described above, and other water treatment is performed on at least one of the raw water flow path 10, the drug-treated water flow path 20, and the filtered water flow path 40. It may further include at least one of a section and a valve.
  • the medicine-treated water supplied with the medicine from the medicine supply unit 100 during normal use passes through the filtration unit 200, and the backwash water does not pass through the medicine supply unit 100 during backwashing. Any material can be used as long as it passes through the filtration unit 200.
  • the water treatment apparatus 1000 of the embodiment includes a raw water flow channel 10, a chemical supply unit 100, a chemical-treated water flow channel 20, a filtration unit 200, a filtered water flow channel 40, a backwash water flow channel 30, and a first switching.
  • a valve V1, a second switching valve V2, and a drain on-off valve V3 are provided.
  • the raw water channel 10 guides raw water.
  • the medicine supply unit 100 is provided so as to receive raw water from the raw water flow path 10 and supplies the medicine to the raw water.
  • the drug-treated water flow path 20 guides the drug-treated water supplied with the drug CA flowing out from the drug supply unit 100.
  • the filtration unit 200 is provided so as to receive chemical-treated water flowing through the chemical-treated water flow path 20, and has a filter medium FL that performs filtration on the chemical-treated water.
  • the filtered water channel 40 guides filtered water that has flowed out of the filtering unit 200 and has been subjected to the filtering process.
  • the backwash water flow path 30 is connected to the raw water flow path 10 and the filtered water flow path 40, and guides backwash water from the raw water flow path 10 to the filtered water flow path 40.
  • the first switching valve V1 is provided at the connection between the raw water flow channel 10 and the backwash water flow channel 30.
  • the first switching valve V1 is switched to either the first normal state or the first backflow cleaning state.
  • the first switching valve V ⁇ b> 1 in the first normal state guides raw water from the raw water flow path 10 to the medicine supply unit 100.
  • the first switching valve V ⁇ b> 1 in the first backflow cleaning state guides water for backflow cleaning from the raw water flow channel 10 to the backflow cleaning water flow channel 30.
  • the second switching valve V2 is provided at the connection between the filtered water flow path 40 and the backwash water flow path 30.
  • the second switching valve V2 is switched to either the second normal state or the second backflow cleaning state.
  • the second switching valve V2 in the second normal state guides filtered water from the filtration unit 200 to the outlet 60.
  • the second switching valve V ⁇ b> 2 in the second backflow cleaning state guides backflow cleaning water from the backflow cleaning water channel 30 to the filtration unit 200 via the filtered water channel 40.
  • the drainage on-off valve V3 is provided in the discharge channel 45 connected to the chemical-treated water channel 20.
  • the drainage on-off valve V3 is switched between a closed state and an open state.
  • the drainage on-off valve V3 in the closed state guides the chemical-treated water flowing through the chemical-treated water flow path 20 to the filtration unit 200.
  • the drainage on-off valve V3 in the open state guides the water for backflow cleaning flowing through the chemical-treated water flow path 20 to the discharge port 50 of the discharge flow path 45.
  • the water for backflow cleaning does not pass through the drug supply unit 100. Therefore, wasteful consumption of the drug by backflow cleaning is suppressed.
  • the water treatment apparatus 1000 includes a backwashing on-off valve V4 instead of the second switching valve V2 according to the first embodiment.
  • the backflow cleaning on-off valve V4 is provided in the filtered water flow path 40 on the downstream side of the filtered water from the connection portion between the filtered water flow path 40 and the backflow cleaning water flow path 30.
  • the backflow cleaning on-off valve V4 is switched to either the normal open state or the backflow cleaning closed state.
  • the normally opened back-flow cleaning on-off valve V4 guides filtered water from the filtering unit 200 to the outlet 60 via the filtered water flow path 40.
  • the backflow cleaning on-off valve V4 in the backflow cleaning closed state guides backflow cleaning water from the backflow cleaning water channel 30 to the filtration unit 200 via the filtered water channel 40. Even with this configuration, the backwash water does not pass through the medicine supply unit 100. Therefore, wasteful consumption of the drug by backflow cleaning is suppressed.
  • the drug supply unit 100 has a drug tank 121 into which a drug can be put.
  • the medicine supply unit 100 introduces the filtered water from the filtered water passage 40 to the medicine CA in the medicine tank 121 and the medicine-treated water flow containing the medicine CA from the medicine tank 121. And a lead-out flow path 111 ⁇ / b> C leading to the path 20. According to this, it is possible to prevent wasteful consumption of the medicine CA due to the backwash water flowing into the medicine supply unit 100 during backwashing.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Treatment Of Water By Oxidation Or Reduction (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)

Abstract

Un dispositif de traitement d'eau (1000) comprenant un canal d'écoulement d'eau brute (10), une unité d'alimentation chimique (100), un canal d'écoulement d'eau traitée chimiquement (20), une unité de filtration (200), un canal d'écoulement d'eau de nettoyage par contre-courant (30), un canal d'écoulement d'évacuation (45), une première vanne de commutation (V1), une seconde vanne de commutation (V2), et une soupape d'ouverture/fermeture des eaux usées (V3). L'eau de nettoyage par contre-courant s'écoule à travers le canal d'écoulement d'eau brute (10), la première vanne de commutation (V1), le canal d'écoulement d'eau de nettoyage par contre-courant (30), la seconde vanne de commutation (V2), un canal d'écoulement d'eau filtré (40), l'unité de filtration (200), le canal d'écoulement d'eau traitée chimiquement (20), le canal d'écoulement d'évacuation (45), la soupape d'ouverture/fermeture des eaux usées (V3), et une ouverture d'évacuation (50), dans l'ordre indiqué, sans traverser l'unité d'alimentation chimique (100).
PCT/JP2019/003801 2018-02-09 2019-02-04 Dispositif de traitement de l'eau WO2019156012A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2019570728A JPWO2019156012A1 (ja) 2018-02-09 2019-02-04 水処理装置

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2018021903 2018-02-09
JP2018-021903 2018-02-09

Publications (1)

Publication Number Publication Date
WO2019156012A1 true WO2019156012A1 (fr) 2019-08-15

Family

ID=67548070

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2019/003801 WO2019156012A1 (fr) 2018-02-09 2019-02-04 Dispositif de traitement de l'eau

Country Status (2)

Country Link
JP (1) JPWO2019156012A1 (fr)
WO (1) WO2019156012A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022004143A1 (fr) * 2020-06-30 2022-01-06 パナソニックＩｐマネジメント株式会社 Appareil de traitement des eaux et soupape de régulation de pression
WO2022201709A1 (fr) * 2021-03-23 2022-09-29 パナソニックＩｐマネジメント株式会社 Appareil de purification d'eau et son procédé de fonctionnement
JP7477842B2 (ja) 2020-08-31 2024-05-02 国立研究開発法人農業・食品産業技術総合研究機構 減圧弁を制御するパイロット弁およびフィルタの洗浄システム、およびパイプライン施設

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63130198U (fr) * 1987-02-17 1988-08-25
JPH0760265A (ja) * 1993-08-26 1995-03-07 Matsushita Electric Ind Co Ltd 浴用循環処理装置
JP2001041564A (ja) * 1999-07-26 2001-02-16 Matsushita Electric Ind Co Ltd 風呂浄化装置
JP2002219469A (ja) * 2000-06-15 2002-08-06 Denso Corp 浴水浄化装置
JP2005211515A (ja) * 2004-01-30 2005-08-11 Yuzawa Enterprise:Kk 浴水循環ろ過システムに用いる薬剤注入装置並びに浴水循環消毒システム
JP2013233523A (ja) * 2012-05-10 2013-11-21 Tosoh Corp 固形薬剤の溶解滅菌装置

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63130198U (fr) * 1987-02-17 1988-08-25
JPH0760265A (ja) * 1993-08-26 1995-03-07 Matsushita Electric Ind Co Ltd 浴用循環処理装置
JP2001041564A (ja) * 1999-07-26 2001-02-16 Matsushita Electric Ind Co Ltd 風呂浄化装置
JP2002219469A (ja) * 2000-06-15 2002-08-06 Denso Corp 浴水浄化装置
JP2005211515A (ja) * 2004-01-30 2005-08-11 Yuzawa Enterprise:Kk 浴水循環ろ過システムに用いる薬剤注入装置並びに浴水循環消毒システム
JP2013233523A (ja) * 2012-05-10 2013-11-21 Tosoh Corp 固形薬剤の溶解滅菌装置

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022004143A1 (fr) * 2020-06-30 2022-01-06 パナソニックＩｐマネジメント株式会社 Appareil de traitement des eaux et soupape de régulation de pression
JP7477842B2 (ja) 2020-08-31 2024-05-02 国立研究開発法人農業・食品産業技術総合研究機構 減圧弁を制御するパイロット弁およびフィルタの洗浄システム、およびパイプライン施設
WO2022201709A1 (fr) * 2021-03-23 2022-09-29 パナソニックＩｐマネジメント株式会社 Appareil de purification d'eau et son procédé de fonctionnement

Also Published As

Publication number Publication date
JPWO2019156012A1 (ja) 2021-01-07

Similar Documents

Publication Publication Date Title
WO2019156012A1 (fr) Dispositif de traitement de l'eau
KR100679231B1 (ko) 3 ｆｍ 정밀여과장치
JP2008100123A (ja) 水処理機器
JP5135352B2 (ja) 中空糸膜濾過装置
JP2019141766A (ja) 水処理装置
JP5232393B2 (ja) 浄水装置
JP2006289334A (ja) 廃棄水及び浄水を利用可能な逆浸透膜純水装置
KR102622548B1 (ko) 수처리장치
JP6101505B2 (ja) 濾過装置
KR20160115576A (ko) 농축수를 이용하여 압력탱크의 정수수를 토출시키는 정수기
JP6459127B2 (ja) 水処理装置
EP3266508B1 (fr) Procédé de production d'eau de ballast et système de traitement d'eau de ballast
JP2020049447A (ja) 固形薬剤供給装置
CN210286987U (zh) 一种可自动反冲洗的超滤净水装置
JP6664673B1 (ja) 濾過システム
JP2019162035A (ja) 細胞処理装置
JP3333086B2 (ja) 水処理装置
JPH0342018A (ja) 膜分離装置
KR200191691Y1 (ko) 공기방울 자동 역세척 정수 시스템
JP2010155196A (ja) 濾過装置
JP3839370B2 (ja) 水処理装置
JP2007111576A (ja) 膜モジュールの逆洗方法
WO2022201709A1 (fr) Appareil de purification d'eau et son procédé de fonctionnement
CN214936551U (zh) 一种净水装置
CN211328448U (zh) 净水器净水系统

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 19750394

Country of ref document: EP

Kind code of ref document: A1

ENP Entry into the national phase

Ref document number: 2019570728

Country of ref document: JP

Kind code of ref document: A

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 19750394

Country of ref document: EP

Kind code of ref document: A1