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WO2025192381A1 - Dispositif de traitement de l'eau - Google Patents

Dispositif de traitement de l'eau

Info

Publication number
WO2025192381A1
WO2025192381A1 PCT/JP2025/007858 JP2025007858W WO2025192381A1 WO 2025192381 A1 WO2025192381 A1 WO 2025192381A1 JP 2025007858 W JP2025007858 W JP 2025007858W WO 2025192381 A1 WO2025192381 A1 WO 2025192381A1
Authority
WO
WIPO (PCT)
Prior art keywords
raw water
valve
water
treatment device
inlet pipe
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
PCT/JP2025/007858
Other languages
English (en)
Japanese (ja)
Inventor
崇 榊原
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Intellectual Property Management Co Ltd
Original Assignee
Panasonic Intellectual Property Management Co Ltd
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 Panasonic Intellectual Property Management Co Ltd filed Critical Panasonic Intellectual Property Management Co Ltd
Publication of WO2025192381A1 publication Critical patent/WO2025192381A1/fr
Pending legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D24/00—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D24/00—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof
    • B01D24/46—Regenerating the filtering material in the filter
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/62—Regenerating the filter material in the filter
    • B01D29/66—Regenerating the filter material in the filter by flushing, e.g. counter-current air-bumps
    • 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
    • C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities

Definitions

  • This disclosure relates to a water treatment device that purifies water through filtration and chemical addition.
  • Water treatment devices that use granular filter media are widely used in water purification plants, factories, and other facilities. These devices are primarily used to remove impurities, such as turbidity components, from raw water. However, like conventional filters, the filtration section of the water treatment device gradually becomes clogged as impurities are captured. Clogging can lead to a variety of problems, including increased pressure loss and the formation of water channels that allow impurities to escape to downstream stages of the water treatment device. Common regeneration methods include backwashing, in which raw water is passed through in the opposite direction to the filtration direction, discharging the captured impurities from the system, and rinsing, in which any foreign matter remaining in the filtration section and piping is discharged immediately after the backwashing process. Furthermore, when the raw water contains a lot of contaminants, such as turbidity components, multiple water treatment devices may be connected together to improve purification performance.
  • FIG. 8 is a schematic diagram showing the configuration of a conventional water treatment device.
  • the water treatment device 101 comprises a first branch section 111 between the chemical supply section 103 and the filtration section 102, a second branch section 112 between the water source and the chemical supply section 103, and a third branch section 113 within the path of the purified water discharge piping 104.
  • the first branch section 111 connects the chemical supply section 103 and the filtration section 102
  • the second branch section 112 connects the water source to the chemical supply section 103
  • the third branch section 113 connects the filtration section 102 to the end side of the purified water discharge piping 104.
  • the first branch 111 connects the backwash drain pipe 105 to the filtration section 102
  • the second branch 112 connects the water source to the backwash water pipe 106
  • the third branch 113 connects the backwash water pipe 106 to the filtration section 102. Therefore, a water treatment device equipped with this mechanism can switch operating modes by operating a valve, making it possible to perform filtration, backwashing, and rinsing processes using a single water source (see, for example, Patent Document 1).
  • This disclosure provides a water treatment device that can ensure the required flow rate even when the water treatment device of this disclosure is connected upstream of another water treatment device.
  • the water treatment device is a water treatment device that filters raw water from a water source and extracts purified water, A first raw water inlet pipe and a second raw water inlet pipe for supplying raw water from the water source; a chemical supply unit connected to the first raw water inlet pipe and supplying a chemical to water supplied from the first raw water inlet pipe; A filtration section containing a filter material; A purified water discharge pipe that takes out treated water filtered by the filtration unit; a drainage pipe for extracting backwash water used to clean the filtration unit from the chemical supply unit; a first communication passage that communicates the filtering unit with the drug supply unit; a second communication passage that communicates the filtration unit with the purified water discharge pipe and the filtration unit with the second raw water inlet pipe; a first valve provided in the first raw water inlet pipe for opening and closing a flow path; a second valve provided in the second raw water inlet pipe for opening and closing a flow path; a third valve provided in the wastewater drain pipe for opening and closing a flow path
  • the second valve and the third valve are opened and the first valve is closed.
  • the drug supply unit and the filtering unit are connected by a dispensing head; the dispensing head has the first communication passage and the second communication passage therein;
  • FIG. 1 is a schematic diagram of the overall configuration of a water treatment device according to an embodiment of the present disclosure.
  • FIG. 2 is a perspective view of a chemical supply unit, a dispensing head, a filtration unit, a first valve, a second valve, and a third valve of a water treatment device according to an embodiment of the present disclosure.
  • FIG. 3 is a schematic diagram showing a flow path in bypass operation when the water treatment device according to the embodiment of the present disclosure is connected to another water treatment device.
  • FIG. 4 is a schematic diagram showing a flow path during backwashing treatment in a water treatment device according to an embodiment of the present disclosure.
  • FIG. 5 is a cross-sectional view of a filtration unit of a water treatment device according to an embodiment of the present disclosure.
  • FIG. 6 is a plan view of a water treatment device according to an embodiment of the present disclosure, with the filtration unit omitted.
  • FIG. 7 is a cross-sectional view taken along line AA of the first raw water inlet pipe, the chemical supply unit, and the distribution head of the water treatment device according to the embodiment of the present disclosure.
  • FIG. 8 is a schematic diagram showing the configuration of a conventional water treatment device.
  • water treatment device 1 has a filtration unit 2, a chemical supply unit 3, a distribution head 5, a first valve 11, a second valve 12, and a third valve 13.
  • the pipes that send raw water to water treatment device 1 are first raw water inlet pipe 7a and second raw water inlet pipe 7b, the pipe that extracts treated water that has been filtered and purified in filtration unit 2 is purified water discharge pipe 10, and the pipe that extracts backwash water that has cleaned filtration unit 2 from chemical supply unit 3 during backwash operation is wastewater drain pipe 8.
  • water treatment device 1 can directly flow raw water that has flowed in from second raw water inlet pipe 7b into purified water discharge pipe 10, allowing raw water to be supplied to a downstream water treatment device (downstream water treatment device 6) separate from water treatment device 1.
  • the water treatment device 1 has a filtration unit 2 containing a filter material and a chemical supply unit 3 that adds chemicals to raw water; the filtration unit 2 and chemical supply unit 3 are connected via a distribution head 5.
  • the first raw water inlet pipe 7a is connected to the chemical supply unit 3.
  • Raw water is supplied from the first raw water inlet pipe 7a to the chemical supply unit 3, and the chemical supply unit 3 supplies chemicals to the raw water supplied from the first raw water inlet pipe.
  • the second raw water inlet pipe 7b is connected to the distribution head 5, and raw water is supplied to the distribution head 5 from the second raw water inlet pipe 7b.
  • the purified water discharge pipe 10 is connected to the distribution head 5 and extracts purified water filtered by the filtration unit 2 from the distribution head 5.
  • the wastewater drain pipe 8 is connected to the chemical supply unit 3 and extracts backwash water used to clean the filtration unit 2 from the chemical supply unit 3.
  • the first valve 11 is provided on the first raw water inlet pipe 7a and opens and closes the flow path of the first raw water inlet pipe 7a.
  • the second valve 12 is provided on the second raw water inlet pipe 7b and opens and closes the flow path of the second raw water inlet pipe 7b.
  • the third valve 13 is provided on the wastewater drain pipe 8 and opens and closes the flow path of the wastewater drain pipe 8. The flow paths of each component can be connected or blocked by opening and closing each valve.
  • the filtration unit 2 removes metal ions and turbid components from the raw water, purifying it.
  • the filtration unit 2 keeps the filtration unit 2 clean and allows it to be used repeatedly by performing a backwash process to discharge any dirt that has accumulated in the filtration unit 2 outside the device.
  • Backwashing is a process in which raw water is forced to flow in the opposite direction within the filtration unit 2, discharging the dirt outside the device.
  • the chemical supply unit 3 adds chemicals to the raw water, coagulating metal ions contained in the raw water as substances that are poorly soluble in water, or coagulating turbid components, making them easier to capture in the filtration unit 2.
  • the electric pump 4 is a pump driven by an electric motor that draws up and discharges well water or water stored in a water tank.
  • Examples of such pumps include centrifugal pumps such as centrifugal pumps and turbine pumps, as well as vortex pumps (cascade pumps), jet pumps, axial flow pumps, and mixed flow pumps.
  • centrifugal pumps such as centrifugal pumps and turbine pumps
  • vortex pumps cascade pumps
  • jet pumps axial flow pumps
  • mixed flow pumps axial flow pumps
  • mixed flow pumps mixed flow pumps.
  • a submersible pump or other submersible pump rather than a suction pump.
  • water When using a suction pump in a typical household, water must be drawn from a shallow well, typically from a depth of 1 to 10 meters, and a deep well, typically from a depth of 10 to 30 meters.
  • a suction pump should be used in a well with a head of 20 meters or more, with vortex pumps and jet pumps being particularly preferable.
  • the discharge flow rate of an electric pump is, for example, 5 to 100 liters per minute, but for typical household use, a pump with a flow rate characteristic of 5 to 50 liters per minute is preferable.
  • the first raw water inlet pipe 7a, the second raw water inlet pipe 7b, the purified water discharge pipe 10, and the wastewater drain pipe 8 may be made of any material and have any structure that can withstand the water pressure of the electric pump 4. Specifically, due to their durability and ease of processing, straight pipes and pipe fittings made of polyvinyl chloride resin and steel pipes, as well as composite materials of these, can be used. Furthermore, a larger nominal diameter is preferable to reduce head loss; for example, a nominal diameter of 13 to 50 millimeters and a thickness of approximately 1 to 5 millimeters are preferred. If it is difficult to select materials that can withstand the maximum discharge pressure of the electric pump 4, it is a good idea to install a pressure reducing valve, pressure regulating valve, and relief valve between the electric pump 4 and the water treatment device 1.
  • the distribution head 5 connects the drug supply unit 3 and the filtration unit 2. Specifically, the distribution head 5 is fixed to the top of the filtration unit 2, and the drug supply unit 3 is fixed to the top of the distribution head 5, with the drug supply unit 3, distribution head 5, and filtration unit 2 being integrally formed.
  • the drug supply unit 3 is supported by the distribution head 5 and the filtration unit 2. This allows the drug supply unit 3 to be supported above the filtration unit 2, eliminating the need for a separate part to support the drug supply unit 3 above the filtration unit 2. Supporting the drug supply unit 3 above the filtration unit 2 reduces the load on the electric pump 4.
  • the horizontal cross sections of the drug supply unit 3, distribution head 5, and filtration unit 2 are each circular.
  • the central axes extending in the vertical direction of the drug supply unit 3, distribution head 5, and filtration unit 2 are aligned on the same line.
  • the horizontal dimension of the filtration unit 2 is greater than the horizontal dimensions of the drug supply unit 3 and distribution head 5, respectively.
  • the weight of the filtration unit 2 is greater than the total weight of the drug supply unit 3 and the distribution head 5.
  • the distribution head 5 has a first communication passage 51 and a second communication passage 52 within it.
  • the first communication passage 51 is a passage that connects the chemical outlet 38 of the chemical supply unit 3 (described later) with the inlet 24 of the filtration unit 2 (described later).
  • the second communication passage 52 is a passage that connects the outlet 25 of the filtration unit 2 (described later), the second raw water inlet pipe 7b, and the purified water outlet pipe 10.
  • the flow direction of the water flowing through the first communication passage 51 and the second communication passage 52 can be changed by opening and closing each valve.
  • Figure 1 is a schematic diagram showing the flow of water during the filtration process.
  • the flow path during filtration is "first raw water inlet pipe 7a (first valve 11) ⁇ first chemical branch section 40 (inside chemical supply section 3) ⁇ first communication passage 51 (inside distribution head 5) ⁇ filtration section 2 (inlet 24 ⁇ outlet 25) ⁇ second communication passage 52 ⁇ purified water discharge pipe 10.”
  • the other water treatment device is configured to be capable of filtration and backwashing, just like the water treatment device 1.
  • the other water treatment device is referred to as the downstream water treatment device 6.
  • the purified water discharge piping 10 of the water treatment device 1 is connected to the downstream water treatment device 6 so that water flows from the water treatment device 1 to the downstream water treatment device 6.
  • dirt that could not be captured by the water treatment device 1 is captured by the downstream water treatment device 6, achieving the desired filtration performance.
  • Figure 4 is a schematic diagram showing the flow of water during backwash processing in the water treatment device 1 of this embodiment.
  • the flow path during backwashing is "second raw water inlet pipe 7b (second valve 12) ⁇ second communication passage 52 (inside distribution head 5) ⁇ filtration section 2 (outlet 25 ⁇ inlet 24) ⁇ first communication passage 51 (inside distribution head 5) ⁇ first chemical branch section 40 (inside chemical supply section 3) ⁇ wastewater drain pipe 8 (third valve 13)."
  • the water treatment device 1 of this embodiment can perform "bypass operation" to supply raw water from the water treatment device 1 to the downstream water treatment device 6 while ensuring the required flow rate when the downstream water treatment device 6 is installed downstream of the water treatment device 1.
  • Figure 3 is a schematic diagram showing the water flow during bypass operation of the water treatment device 1 of this embodiment.
  • the purified water discharge piping 10 is connected to the downstream water treatment device 6.
  • bypass operation allows the water in the second raw water inlet pipe 7b to flow directly into the purified water discharge pipe 10, so raw water can be supplied from the purified water discharge pipe 10 to the downstream water treatment device 6 without reducing the flow rate of raw water.
  • the raw water inlet pipe 7b and purified water outlet pipe 10 which form the flow paths during bypass operation, are formed linearly and integrally, with the same cross-sectional shape.
  • the central axis of the second raw water inlet pipe 7b and the central axis of the purified water outlet pipe 10 may be aligned on the same line.
  • the second valve 12 may be a full-bore ball valve whose cross-sectional shape is equivalent to that of the other pipes.
  • the cross-sectional shape cannot be maintained constant, it is recommended that the variation in the cross-sectional area of the flow path during bypass operation be kept within ⁇ 10%.
  • Figure 5 is a cross-sectional view of the filtration section 2.
  • the filtration unit 2 comprises a cylindrical tank 20 with a bottom and an opening on the top, and a filter material and a water collection pipe 21 inside the tank 20.
  • the filtration unit 2 purifies raw water by passing it through the filtration unit 2.
  • the filter material inside the filtration unit 2 is composed of an upper layer 22, which primarily filters out impurities, and a lower layer 23, which has a rectifying effect.
  • the filter material used in the upper layer 22 is activated carbon, manganese sand, anthracite, etc., and one to four types of filter material are used in layers depending on the quality of the raw water. In the filtration unit 2 of this embodiment, the filtering action is centered on the upper layer 22.
  • the filter material used in the lower layer 23 is composed of gravel or coarse-pore resin, etc., to disperse the water entering and exiting the water collection pipe 21.
  • the lower layer 23 has a relatively large gravel layer at the bottom to improve water flow and prevent the filter material from leaking out from the bottom of the water collection pipe 21.
  • the amount of filter material in the lower layer 23 (the height of the lower layer 23 when the filter material is packed inside the filtration unit 2) should be approximately 1/2 to 1 time the diameter of the filtration unit 2.
  • the combined amount of filter material packed into the upper layer 22 and lower layer 23 should be approximately 1/4 to 4/5 times the volume of the filtration unit 2.
  • the filtration section 2 has an inlet 24 and an outlet 25 at the opening on its top surface.
  • the outlet 25 is connected to the water collection pipe 21.
  • the inlet 24 and the outlet 25 are connected to the first communication passage 51 and the second communication passage 52 of the distribution head 5, respectively.
  • raw water flows through the filtration section 2 as follows, and purified water is obtained from the outlet 25.
  • the filtration section 2 can also discharge dirt accumulated during the filtration process through a backwash process. During the backwash process, raw water flows as shown below, and dirt is discharged from the inlet 24.
  • Figure 6 is a plan view of the water treatment device 1 with the filtration unit 2 omitted.
  • Figure 7 is a cross-sectional view taken along the line A-A of the first raw water inlet pipe 7a, chemical supply unit 3, and distribution head 5 of the water treatment device 1.
  • first raw water inlet pipe 7a first valve 11
  • first chemical branch unit 40 first chemical branch unit 40 ⁇ distribution head 5" during filtration processing, and the structure of the chemical supply unit 3.
  • the housing 30 is composed of a bowl-shaped base 30a located at the bottom, a roughly cylindrical upper cover 30b that covers the base 30a, and a lid 36 that closes the upper opening of the upper cover 30b.
  • the lid 36 can be attached and detached to the upper opening of the upper cover 30b.
  • the drug placement section 31 is installed at the top inside the housing 30, and the drug path 32 extends vertically from the bottom surface of the housing 30 and is connected to the drug placement section 31.
  • the recovery section 33 is installed at the bottom inside the housing 30 and is provided on the outer periphery of the drug path 32.
  • the base 30a of the drug supply unit 3 has a drug outlet 38 that opens downward.
  • a second drug flow path 35 Inside the housing 30 of the drug supply unit 3 is a second drug flow path 35, which is a flow path that connects the drug outlet 38 with the recovery unit 33.
  • the drug outlet 38 is connected to the first communication path 51 of the dispensing head 5.
  • the first chemical flow path 34 has a second chemical branch section 41 that communicates with the chemical path 32.
  • the second chemical branch section 41 is a flow path that connects the first raw water inlet pipe 7a (first valve 11), the wastewater drain pipe 8 (third valve 13), and the chemical path 32.
  • the first chemical flow path 34 has a first chemical branch 40 that is positioned closer to the wastewater drain piping 8 (third valve 13) than the second chemical branch 41 in the first chemical flow path 34 and communicates with the second chemical flow path 35.
  • the first chemical branch 40 is a flow path that communicates the second chemical branch 41, the recovery section 33, the wastewater drain piping 8 (third valve 13), and the chemical outlet 38.
  • the first chemical flow path 34 has a throttle section 37 between the first chemical branch section 40 and the second chemical branch section 41 in the first chemical flow path 34.
  • the throttle section 37 is the flow path with the smallest cross-sectional area in the first chemical flow path 34.
  • the throttle section 37 is provided to branch the raw water that flows into the chemical supply section 3 and adjust the chemical solution to the required concentration.
  • the recovery section 33 is located at the bottom inside the housing 30, on the outer periphery of the chemical path 32.
  • the chemical path 32 is a small-diameter conduit that stands upright with the chemical placement section 31 at the top.
  • the diameter of the chemical path 32 is reduced midway between the chemical placement section 31 and the bottom surface of the housing 30, and the chemical placement section 31 is located at the top of the chemical path 32, allowing the chemical to come into contact with the raw water at the desired flow rate.
  • the volume of the chemical placement section 31 is determined based on the amount (number) of chemical required to obtain a chemical solution of the desired concentration relative to the flow rate of the raw water.
  • raw water flows into the chemical supply unit 3 from the first raw water inlet pipe 7a (first valve 11) and branches at the second chemical branch unit 41 into the chemical path 32 side and the first chemical branch unit 40 side.
  • the water flows into the chemical path 32, comes into contact with the chemical at the chemical placement unit 31, and dissolves the chemical.
  • the water then passes around the outer periphery of the chemical path 32 and is collected in the collection unit 33. It then passes through the second chemical flow path 35 and merges with the water that branched at the second chemical branch unit 41 at the first chemical branch unit 40.
  • the raw water that merges at the first chemical branch unit 40 flows out of the chemical supply unit 3 into the first communication passage 51 of the distribution head 5.
  • the liquid level of the raw water containing dissolved chemicals that flows down into the housing 30 is approximately half the height of the housing 30, or even less.
  • the flow rate of the raw water that comes into contact with the chemical in the chemical placement section 31 can be adjusted by the flow rate of the raw water flowing through the constriction section 37.
  • the flow rate ratio of the raw water that branches off at the second chemical branch section 41 can be adjusted. In this way, the chemical concentration in the first chemical branch section 40 after merging can be adjusted to the desired concentration.
  • the chemical concentration in the raw water flowing out of the chemical supply unit 3 can be adjusted to within the desired range.
  • the drug placement section 31 is equipped with a water-soluble, solid drug 60.
  • the drug 60 is preferably in tablet or granular form. Using a tablet or granular drug 60 increases the drug's surface area, allowing for a stable drug concentration. For tablets, a diameter of approximately 30 mm and a height of 10 to 20 mm is sufficient, while for granules, a diameter of approximately 5 to 15 mm is sufficient. If the drug 60 is small, adjacent pieces of drug will come into contact with water at the same time and stick together. This causes only the lower parts of the drug to come into contact with water, reducing the surface area and making it impossible to achieve the desired drug concentration (medicinal solution concentration). Alternatively, if the drug 60 is small, the contact area with the water supplied from the drug path 32 will increase, making it impossible to achieve the desired drug concentration. Therefore, the drug 60 of the aforementioned size is used to supply the desired drug solution concentration.
  • chemical 60 oxidizes metal ions contained in the raw water to produce flocculants that are difficult to dissolve in water.
  • Various chemicals can be used as chemical 60, but depending on the desired water purification performance, a flocculant such as PAC (polyaluminum chloride) may also be used.
  • PAC polyaluminum chloride
  • chemical 60 that is easily soluble in water is preferable, but it is also preferable that it maintains its solid form and does not flow out of chemical loading section 31 during shutdown or backwash processing, i.e., when chemical addition is interrupted.
  • trichloroisocyanuric acid is used.
  • each component of the drug supply unit 3 will be in contact with the drug for an extended period of time, it is recommended to select materials with low reactivity to the drug, such as PVC (polyvinyl chloride), PMMA (polymethyl methacrylate), or PP (polypropylene).
  • the drug path 32 must be strong enough to support the drug placement unit 31. Therefore, considering compatibility with the drug, it is preferable to select a material for the drug path 32, such as polyvinyl chloride or ABS (acrylonitrile butadiene styrene), which are stronger than PP.
  • the outer diameter of the drug path 32 should be no more than one-quarter of the inner diameter of the base 30a and upper cover 30b.
  • a space (collection unit 33) for temporarily storing the solution after drug supply can be provided outside the drug path 32, preventing the water level inside the housing 30 from rising too rapidly and reaching the drug placement unit 31.
  • the inner diameter of the base 30a is 130 mm, it is recommended to use a PVC pipe with an outer diameter of approximately 25 to 40 mm.
  • Figure 2 is a perspective view of the chemical supply unit, distribution head, filtration unit, first valve, second valve, and third valve of the water treatment device 1 according to this embodiment.
  • the first raw water inlet pipe 7a extends from the chemical supply unit 3 to one side in the left-right direction (left side in Figure 1)
  • the second raw water inlet pipe 7b extends from the distribution head 5 to one side in the left-right direction (left side in Figure 1).
  • the wastewater drain pipe 8 extends from the chemical supply unit 3 to the other side in the left-right direction (right side in Figure 1)
  • the purified water discharge pipe 10 extends from the distribution head 5 to the other side in the left-right direction (right side in Figure 1). This allows the connecting pipes from the electric pump 4 to the first raw water inlet pipe 7a and the second raw water inlet pipe 7b to be short, thereby enabling a more compact product.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (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)
  • Water Treatment By Sorption (AREA)
  • Filtration Of Liquid (AREA)

Abstract

Un dispositif de traitement de l'eau (1) selon la présente divulgation comprend : une unité de filtration (2) ; un premier tuyau d'entrée d'eau brute (7a) ; un second tuyau d'entrée d'eau brute (7b) ; une unité d'alimentation en produit chimique (3) ; un tuyau d'évacuation d'eau purifiée (10) pour extraire l'eau purifiée après filtration provenant de l'unité de filtration (2) ou l'eau brute provenant du premier tuyau d'entrée d'eau brute (7a) ; un tuyau de vidange (8) pour extraire l'eau utilisée pour nettoyer l'unité de filtration (2) ; une tête de distribution reliant l'unité d'alimentation en produit chimique (3) et l'unité de filtration (2) ; une première vanne (11) qui ouvre et ferme le premier tuyau d'entrée d'eau brute (7a) ; une deuxième vanne (12) qui ouvre et ferme le second tuyau d'entrée d'eau brute (7b) ; et une troisième vanne (13) qui ouvre et ferme le tuyau de vidange (8). Le dispositif de traitement de l'eau (1) peut commuter entre un mode de traitement par filtration, un mode de traitement par lavage à contre-courant et un mode de fonctionnement de dérivation en ouvrant ou en fermant chaque vanne.
PCT/JP2025/007858 2024-03-13 2025-03-05 Dispositif de traitement de l'eau Pending WO2025192381A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2024-038628 2024-03-13
JP2024038628A JP2025139669A (ja) 2024-03-13 2024-03-13 水処理装置

Publications (1)

Publication Number Publication Date
WO2025192381A1 true WO2025192381A1 (fr) 2025-09-18

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Family Applications (1)

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JP (1) JP2025139669A (fr)
WO (1) WO2025192381A1 (fr)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01270994A (ja) * 1988-04-25 1989-10-30 Kotobuki Kogyo Kk 水の浄化装置
JPH02107389A (ja) * 1988-10-18 1990-04-19 Suirei:Kk ゴルフ場等の水深の浅い溜池の浄化装置
JPH08299714A (ja) * 1995-04-28 1996-11-19 Chiyoufu Seisakusho:Kk 温水循環ろ過装置用ろ過器
JP2017148756A (ja) * 2016-02-26 2017-08-31 パナソニックＩｐマネジメント株式会社 水処理装置
WO2021020138A1 (fr) * 2019-07-31 2021-02-04 パナソニックＩｐマネジメント株式会社 Dispositif de traitement de l'eau
WO2024070864A1 (fr) * 2022-09-29 2024-04-04 パナソニックＩｐマネジメント株式会社 Dispositif de traitement d'eau

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01270994A (ja) * 1988-04-25 1989-10-30 Kotobuki Kogyo Kk 水の浄化装置
JPH02107389A (ja) * 1988-10-18 1990-04-19 Suirei:Kk ゴルフ場等の水深の浅い溜池の浄化装置
JPH08299714A (ja) * 1995-04-28 1996-11-19 Chiyoufu Seisakusho:Kk 温水循環ろ過装置用ろ過器
JP2017148756A (ja) * 2016-02-26 2017-08-31 パナソニックＩｐマネジメント株式会社 水処理装置
WO2021020138A1 (fr) * 2019-07-31 2021-02-04 パナソニックＩｐマネジメント株式会社 Dispositif de traitement de l'eau
WO2024070864A1 (fr) * 2022-09-29 2024-04-04 パナソニックＩｐマネジメント株式会社 Dispositif de traitement d'eau

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