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WO2021235384A1 - Dispositif de traitement de l'eau, procédé de traitement de l'eau, et programme de traitement de l'eau - Google Patents

Dispositif de traitement de l'eau, procédé de traitement de l'eau, et programme de traitement de l'eau Download PDF

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Publication number
WO2021235384A1
WO2021235384A1 PCT/JP2021/018581 JP2021018581W WO2021235384A1 WO 2021235384 A1 WO2021235384 A1 WO 2021235384A1 JP 2021018581 W JP2021018581 W JP 2021018581W WO 2021235384 A1 WO2021235384 A1 WO 2021235384A1
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WO
WIPO (PCT)
Prior art keywords
water
water treatment
information
additive
treatment device
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Ceased
Application number
PCT/JP2021/018581
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English (en)
Japanese (ja)
Inventor
慶信 嶋山
達哉 廣田
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Panasonic Intellectual Property Management Co Ltd
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Panasonic Intellectual Property Management Co Ltd
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Publication of WO2021235384A1 publication Critical patent/WO2021235384A1/fr
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    • 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
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
    • G06Q50/00—Information and communication technology [ICT] specially adapted for implementation of business processes of specific business sectors, e.g. utilities or tourism
    • G06Q50/06—Energy or water supply
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A20/00—Water conservation; Efficient water supply; Efficient water use
    • Y02A20/152—Water filtration

Definitions

  • This disclosure relates to water treatment equipment, water treatment methods and water treatment programs.
  • a water treatment device that purifies raw water, which is water from a water source such as a well, river or pond, or rainwater, for use as drinking water or domestic water.
  • raw water which is water from a water source such as a well, river or pond, or rainwater
  • Such a water treatment device can be installed in a general house in a developing country, for example.
  • operating conditions are determined for each place where it is installed according to the quality of the raw water to be treated. Therefore, it takes a certain amount of time to determine the operating conditions under which the treated water purified to a desired level can be stably obtained.
  • Patent Document 1 manages the operation of a plurality of water treatment facilities by creating and using various information such as operation record information accumulated in the plurality of water treatment facilities to create an operation schedule of each water treatment facility. It discloses the technology related to the management center. With reference to such technology, the water treatment system itself does not determine the operating conditions for each water treatment device, but by adopting the operating conditions transmitted from the management center, until the water treatment operation is started. It is also possible to shorten the time.
  • a plurality of water treatment facilities refer to large-scale facilities located in areas far away from each other, such as a water purification plant and a sewage treatment plant, so that a water treatment facility exists.
  • Water sources, water quality, meteorological conditions, etc. may differ in each region.
  • the management target is a plurality of water treatment devices installed in a general house instead of these water treatment facilities, it is conceivable that the information acquired and accumulated by each water treatment device will be significantly different. Therefore, even if the management center analyzes the information acquired from each water treatment device, it is difficult to derive the appropriate operating conditions for each water treatment device, and as a result, the water treatment device quickly determines the appropriate operating conditions. It may not be possible to do so.
  • An object of the present disclosure is to provide a water treatment apparatus, a water treatment method and a water treatment program which are advantageous for rapidly determining appropriate operating conditions.
  • the water treatment device transmits and receives information between a filtration device that purifies raw water to generate treated water, a measuring unit that measures the water state of raw water or treated water, and a server. Based on the transmission / reception unit, the information on the water condition acquired from the measurement unit, and the external information acquired from the server via the transmission / reception unit, the correlated area that correlates with the water quality of the raw water is identified, and the operation for each correlated area is performed. It is provided with a control unit for determining conditions.
  • the water treatment method includes a filtration step of purifying raw water to generate treated water, a measurement step of measuring the water state of raw water or treated water, and an external system for acquiring external information from a server. Based on the information on the water condition acquired in the information acquisition process and the measurement process, and the external information acquired in the external information acquisition process, the area identification process and area identification to identify the correlated area that correlates with the water quality of the raw water. Includes an operating condition determination step of determining operating conditions for each correlated area identified in the process.
  • the control unit provided in the above water treatment apparatus is provided with raw water based on information on the water state of the raw water or the treated water and external information acquired from the server.
  • the process of identifying the correlated area that correlates with the water quality of the water quality and the process of determining the operating conditions for each identified correlated area are executed.
  • FIG. 1 is a schematic view of a water treatment apparatus according to an embodiment of the present disclosure.
  • FIG. 2 is a control block diagram of the water treatment apparatus according to the embodiment.
  • FIG. 3 is a schematic diagram of a water treatment system including a plurality of water treatment devices.
  • FIG. 4 is a flowchart showing the flow of the first water treatment process at the initial stage of operation.
  • FIG. 5 is a flowchart showing the flow of the second water treatment step in the normal state.
  • FIG. 6 is a flowchart showing the flow of the operating condition setting process.
  • FIG. 7 is a flowchart showing the flow of the area identification process.
  • FIG. 8 is a flowchart showing the flow of the operation condition determination process.
  • FIG. 9 is a flowchart showing a flow of measures when a change occurs in the quality of raw water.
  • FIG. 1 is a schematic view of the water treatment device 10 according to the embodiment.
  • the water treatment device 10 purifies the raw water to be treated to the extent that it can be used as domestic water, drinking water, or the like.
  • the water treatment device 10 can be installed in a general house in a developing country where the water supply facilities are not sufficiently equipped, for example.
  • the water treatment device 10 purifies the raw water pumped from the water source 100 and finally supplies it to the house 200 as treated water.
  • one water treatment apparatus 10 may supply treated water not only to one house 200 but also to a plurality of houses 200.
  • the raw water assumed in this embodiment is mainly shallow well water (surface water).
  • a shallow well is a well pumped from an underground aquifer.
  • a deep well is a well that is pumped from an underground aquifer.
  • Shallow well water often flows along the same water vein in neighboring areas. Therefore, shallow well water tends to have similar water quality or behavior of similar water quality change in each neighboring area depending on the ground composition peculiar to the area and meteorological conditions such as rainfall.
  • the water treatment device 10 includes a filtration device 20, a water storage tank 22, an additive supply unit 24, a control unit 26, and a transmission / reception unit 28.
  • the filtration device 20 purifies the raw water pumped from the water source 100 to generate treated water (purified water).
  • the filtration method adopted by the filtration device 20 is not particularly limited, but may be, for example, a method of removing impurities from raw water using a filter medium.
  • the filter medium may be a particulate matter such as manganese sand.
  • the water storage tank 22 stores the treated water purified by the filtration device 20. Although one water storage tank 22 is drawn in FIG. 1, there may be a plurality of water storage tanks 22.
  • the water treatment device 10 includes a first pipe 30, a second pipe 32, and a third pipe 34 as a piping system.
  • the first pipe 30 is a pipe that guides the raw water pumped from the water source 100 to the filtration device 20. One end of the first pipe 30 is inserted into the water source 100. The other end of the first pipe 30 is connected to the filtration device 20.
  • the second pipe 32 is a pipe that guides the treated water discharged from the filtration device 20 to the water storage tank 22. One end of the second pipe 32 is connected to the filtration device 20. The other end of the second pipe 32 is connected to the water storage tank 22.
  • the third pipe 34 is a pipe that guides the treated water pumped from the water storage tank 22 to the house 200. One end of the third pipe 34 is connected to the water storage tank 22. The other end of the third pipe 34 is attached to the house 200 side.
  • the water treatment device 10 includes a filtration pump 40 and a water supply pump 42 as a power source.
  • the filtration pump 40 is connected to the first pipe 30 and is a power source that draws raw water from the water source 100 and sends it to the filtration device 20.
  • the water supply pump 42 is connected to the third pipe 34 and is a power source for pumping treated water from the water storage tank 22 and sending it to the house 200. The operation of the filtration pump 40 and the water supply pump 42 is controlled by the control unit 26.
  • the water treatment device 10 may include a backwash mechanism for backwashing the filtration device 20.
  • the backwash means a washing process in which washing water is flowed to the filtering device 20 in the direction opposite to that at the time of filtering in order to restore the filtering ability of the filtering device 20.
  • the backwash mechanism may use the raw water sent from the filtration pump 40 as the wash water at the time of backwash.
  • the water treatment device 10 includes a measuring unit for measuring the water state of the raw water or the treated water.
  • the water state refers to a state relating to at least one of the water quality of the raw water or the treated water, the water pressure of the raw water, and the amount of the treated water.
  • the water treatment device 10 includes a raw water quality sensor 50 and a treated water quality sensor 51 as a measuring unit for measuring a state related to water quality.
  • the raw water quality sensor 50 measures the state related to the raw water quality.
  • the raw water quality sensor 50 is installed in the first pipe 30. In this case, it is desirable that the raw water quality sensor 50 is installed on the side as close to the water source 100 as possible, for example, on the upstream side of the additive supply unit 24, in order to recognize the state of the raw water quality in real time. .. Specific measurement items of the raw water quality sensor 50 are, for example, turbidity, chromaticity or iron concentration of raw water.
  • the information measured by the raw water quality sensor 50 is transmitted to the control unit 26.
  • the treated water quality sensor 51 measures the state of the treated water with respect to the water quality.
  • the treated water quality sensor 51 is installed on the downstream side of the filtration device 20, for example, on the second pipe 32. Specific measurement items of the treated water quality sensor 51 are, for example, turbidity, chromaticity or iron concentration of the treated water.
  • the information measured by the treated water quality sensor 51 is transmitted to the control unit 26.
  • the water treatment device 10 includes both the raw water quality sensor 50 and the treated water quality sensor 51, but either one may be provided.
  • the water treatment device 10 includes a pressure sensor 52 as a measuring unit for measuring a state related to the pressure of raw water.
  • the pressure sensor 52 is installed in the first pipe 30. That is, the pressure sensor 52 measures the water pressure of the raw water flowing in the first pipe 30 on the upstream side of the filtration device 20. In this case, it is desirable that the pressure sensor 52 is installed at a position closer to the filtration device 20 in the first pipe 30 in order to recognize the state of the raw water passing through the filter medium in the filtration device 20 in real time. The information measured by the pressure sensor 52 is transmitted to the control unit 26.
  • the water treatment device 10 includes a water amount meter 53 and a water level sensor 54 as a measuring unit for measuring a state related to the amount of treated water.
  • the water meter 53 measures the amount of treated water generated by the filtration device 20.
  • the water meter 53 is installed in the second pipe 32. That is, the water meter 53 measures the amount of treated water flowing between the filtration device 20 and the water storage tank 22.
  • the water meter 53 may be installed in the third pipe 34 on the downstream side of the water storage tank 22, but it may be difficult to obtain an accurate water amount value due to evaporation or the like, so the water meter 53 may be installed in the second pipe 32. It is desirable to install it.
  • the information measured by the water meter 53 is transmitted to the control unit 26.
  • the water level sensor 54 is installed in the water storage tank 22 and detects the water level of the treated water stored in the water storage tank 22.
  • the water level sensor 54 can detect, for example, two water levels, a high water level shown by a solid line in the figure and a low water level shown by a broken line in the figure.
  • the information detected by the water level sensor 54 is transmitted to the control unit 26.
  • the additive supply unit 24 supplies the additive to the raw water before it is introduced into the filtration device 20.
  • the additive supply unit 24 is installed in the first pipe 30 located on the upstream side of the filtration device 20.
  • the additive is a chemical that makes it easy to purify the impurities contained in the raw water in the filtration device 20.
  • the additive may be, for example, ozone as an oxidizing agent. Since ozone has a strong oxidizing power, it can be easily captured by the filtration device 20 by decomposing organic substances that are difficult to decompose contained in raw water.
  • the additive may be, for example, iron ions eluted from the electrode of the iron electrolysis treatment as a flocculant. The flocculant can grow to the extent that the colloidal particulate organic matter contained in the raw water can be captured by the filtration device 20.
  • the water treatment device 10 is installed in the additive supply unit 24 and includes an additive measurement unit for measuring the amount of the additive contained in the additive supply unit 24.
  • the additive measuring unit is, for example, an additive weight sensor 55 that measures the weight of the additive housed inside the additive supply unit 24.
  • the additive measuring unit is not limited to the additive weight sensor 55, and may be, for example, an additive high-level sensor that measures the high level of the additive contained inside the additive supply unit 24.
  • FIG. 2 is a control block diagram of the water treatment device 10.
  • the control unit 26 controls the operation of the entire water treatment device 10 based on various information.
  • the control unit 26 includes an information processing unit 60 and an information recording unit 61.
  • the information processing unit 60 has a CPU (Central Processing Unit) and can execute at least the water treatment program according to the present embodiment.
  • the water treatment program informs the control unit 26 of the correlation area 210 that correlates with the water quality of the raw water based on the information on the water condition regarding the raw water or the treated water and the external information acquired from the server 300 installed outside. It is possible to execute a process for specifying (see FIG. 3). Further, the water treatment program may execute a process of determining the operating conditions for each of the specified correlation areas 210.
  • the information recording unit 61 is a recording medium composed of a RAM (RandomAccessMemory) or the like, and records a water treatment program and various information according to the present embodiment.
  • a RAM RandomAccessMemory
  • a power switch 62, an information input unit 63, a raw water quality sensor 50, a treated water quality sensor 51, a pressure sensor 52, a water amount meter 53, a water level sensor 54, and an additive weight sensor 55 are connected to the input side of the control unit 26. ..
  • a filtration pump 40, a water supply pump 42, an information output unit 64, an additive supply unit 24, and an additive information output unit 66 are connected to the output side of the control unit 26. It should be noted that these connections may be wired or wireless.
  • the power switch 62 switches on / off the entire water treatment device 10.
  • the information input unit 63 is a device for the user to input various information related to the operation of the water treatment device 10.
  • the information input unit 63 may be a keyboard or a touch panel.
  • the information output unit 64 outputs the operation status to the outside of the water treatment device 10.
  • the term "external” assumed here means that, for example, maintenance of the water treatment device 10 may be carried out by a manufacturing company that undertakes the manufacture of the water treatment device 10, a management company that maintains and manages the water treatment system 1, and the like. The place where the worker who can do it is staying.
  • the information output unit 64 may output information to the outside via, for example, a communication network such as the Internet.
  • the display unit 65 displays the operating status of the water treatment device 10.
  • the additive information output unit 66 outputs information about the additive to the outside of the water treatment device 10.
  • the term "outside" assumed here means a place where a user who can replenish the additive is staying in the additive supply unit 24, for example, a house 200 in which the water treatment device 10 is installed.
  • the transmission / reception unit 28 transmits / receives information to / from a server 300 installed outside via a communication network 310 (see FIG. 3) such as the Internet.
  • the transmission / reception unit 28 is electrically connected to the control unit 26.
  • the transmission / reception unit 28 may be, for example, a communication router.
  • FIG. 3 is a schematic view showing a water treatment system 1 including a plurality of water treatment devices 10 according to the present embodiment.
  • the water treatment system 1 has a plurality of water treatment devices 10 and a server 300 installed separately from these water treatment devices 10.
  • three water treatment devices 10 having the same configuration, that is, the first water treatment device 10A, the second water treatment device 10B, and the third water treatment device 10C exist in the water treatment system 1.
  • the first water treatment apparatus 10A carries out water treatment for producing treated water to be supplied to the first house 200A.
  • the second water treatment device 10B carries out water treatment for producing the treated water supplied to the second house 200B.
  • the third water treatment apparatus 10C carries out water treatment for producing the treated water supplied to the third house 200C.
  • These three water treatment devices 10 are installed in different areas.
  • the server 300 manages external information used by each water treatment device 10. Here, since the external information differs for each step included in the water treatment step of the present embodiment, it will be described below each time.
  • the server 300 can transmit and receive information to and from the transmission / reception unit 28 installed in each water treatment device 10 via the communication network 310.
  • the first water treatment device 10A among the three water treatment devices 10 included in the water treatment system 1 will be focused on, and the specific operation of the first water treatment device 10A will be described.
  • the second water treatment device 10B and the third water treatment device 10C may be expressed as a water treatment device different from the own machine as a water treatment device different from the first water treatment device 10A.
  • the operating conditions refer to the setting conditions of the filtration device 20 when operating the water treatment device 10, the driving conditions of the power source such as the filtration pump 40, and the like.
  • Appropriate operating conditions refer to, for example, operating conditions in which a desired purification level and production amount can be obtained for treated water, or operating costs can be further reduced.
  • the operation record information refers to information including the actually adopted operating conditions, the purification level and the amount of treated water generated when operating under the operating conditions, the amount of treated water used in the house 200, and the like. ..
  • the water treatment method according to the present embodiment includes, for example, two types of water treatment steps, that is, a first water treatment step and a second water treatment step.
  • the first water treatment step is a water treatment step at the initial stage of operation corresponding to the operation immediately after the first water treatment device 10A is installed as the water treatment device for the first house 200A.
  • the second water treatment step is a normal water treatment step after the first water treatment step.
  • FIG. 4 is a flowchart showing the flow of the first water treatment process.
  • the control unit 26 of the first water treatment device 10A does not have past operation record information or information specific to the region regarding the quality of the raw water to be treated. Therefore, if the control unit 26 tries to obtain appropriate operating conditions based only on the information on the water state measured by various measurement units included in the first water treatment device 10A, it takes a certain period of time. Therefore, the control unit 26 executes the first water treatment step as shown below at the initial stage of operation. As a premise for starting the first water treatment step, it is assumed that the water storage tank 22 has a sufficient storage space for storing the treated water.
  • the first water treatment process is started when the user turns on the power switch 62.
  • the control unit 26 acquires external information from the server 300 via the transmission / reception unit 28 as an external information acquisition step (step S101).
  • the external information here is past operation record information in a water treatment device different from the own machine, which is acquired by the server 300 from a water treatment device different from the first water treatment device 10A (own machine).
  • the second water treatment device 10B and the third water treatment device 10C have already been operated for a long period of time. At this time, even if the external information acquired from the server 300 is the past operation record information of the second water treatment device 10B installed in the area near the area where the first water treatment device 10A is installed. good.
  • the raw water to be treated is mainly shallow well water. It is likely that the behavior of raw water quality and changes in water quality in each region will be similar. That is, it is highly possible that the appropriate operating conditions for the first water treatment apparatus 10A are similar to the appropriate operating conditions for the second water treatment apparatus 10B.
  • the control unit 26 drives the filtration pump 40 and causes the filtration device 20 to purify the raw water to finally generate treated water (step S102).
  • the control unit 26 adjusts the operating conditions to the operating conditions included in the past operation record information of the water treatment device different from that of the own machine acquired in step S101.
  • the control unit 26 may carry out this filtration step until the water storage tank 22 is filled with treated water.
  • the control unit 26 may determine whether or not the treated water is at a high water level (limit water level) based on whether or not the water level sensor 54 emits a predetermined high water level signal.
  • control unit 26 uses the operating conditions included in the past operation record information in the water treatment device different from the own machine acquired in step S101.
  • control unit 26 can also use the information directly input by the user via the information input unit 63 as a part of the operating condition.
  • control unit 26 may supply the additive to the raw water to the additive supply unit 24 in step S102. At this time, the control unit 26 may adjust the addition amount of the additive to the addition amount of the additive included in the past operation record information in the water treatment apparatus different from that of the own machine acquired in step S101.
  • the control unit 26 causes each measuring unit to measure the water state related to the raw water or the treated water as a measuring step in accordance with the execution of step S102 (step S103).
  • the raw water quality sensor 50, the treated water quality sensor 51, the pressure sensor 52, the water amount meter 53, and the water level sensor 54 are exemplified as the measuring units, but not all the measuring units are required. .. However, it is desirable to set more measurement targets because the judgment index for the control unit 26 to determine an appropriate operating condition increases.
  • the control unit 26 causes the information recording unit 61 to record various measurement results measured in step S103 and operation record information at the timing when the measurement results are obtained (step). S104). It should be noted that this information recording step is not necessarily executed at the end of step S103, and may be executed at any time in conjunction with the execution of the measurement step. Then, the control unit 26 ends the first water treatment step after the end of step S104. The first water treatment step may be executed not only once but a plurality of times.
  • the control unit 26 of the first water treatment device 10A is likely to have a second water treatment that is likely to resemble an appropriate operating condition for the first water treatment device 10A as an operating condition.
  • the operating conditions of the device 10B are used. Therefore, the control unit 26 of the first water treatment device 10A can quickly determine appropriate operating conditions even if it does not sufficiently possess past operation record information or the like at the initial stage of operation.
  • the information recorded in step S104 is referred to in the second water treatment step described below.
  • FIG. 5 is a flowchart showing the flow of the second water treatment process.
  • the control unit 26 of the first water treatment device 10A has the operation record information for at least one water treatment operation by executing the first water treatment step at least once. Therefore, in the second water treatment step, the control unit 26 of the first water treatment device 10A uses both various information owned by itself and external information acquired from the server 300. As a premise for starting the second water treatment step, it is assumed that the water storage tank 22 has a sufficient storage space for storing the treated water.
  • the second water treatment process is started when the user turns on the power switch 62.
  • the control unit 26 sets the operating conditions for executing the subsequent filtration step (step S202) as the operating condition setting step (step S201).
  • FIG. 6 is a flowchart showing a specific flow of the operating condition setting process.
  • the operating condition setting process includes a region specifying process, an operating condition determining process, an operating condition recording process, and an information transmission process.
  • step S301 the area where the first water treatment device 10A (own machine) is installed is compared with the area where the water treatment device different from the own machine is installed, and each area is compared. This is a step of identifying a correlation area 210 that has a correlation with the quality of the raw water to be treated.
  • FIG. 7 is a flowchart showing the specific flow of the area identification process.
  • the control unit 26 acquires information on the water quality of the raw water recorded in the information recording unit 61 (hereinafter, simply referred to as “raw water quality information”) (step S401).
  • the raw water quality information is information obtained by measuring in advance by the raw water quality sensor 50.
  • the raw water quality information obtained in the measurement step (step S103) in the first water treatment step is used.
  • the raw water quality information obtained in the measurement step (step S203) in the previous second water treatment step is used. That is, as the operation record of the second water treatment step increases, the raw water quality information is gradually accumulated in the information recording unit 61, so that the tendency of the raw water quality or the behavior of the water quality change becomes clearer.
  • the control unit 26 acquires external information from the server 300 via the transmission / reception unit 28 as an external information acquisition process (step S402).
  • the external information here is raw water quality information in a water treatment device different from the own machine, which is acquired by the server 300 from a water treatment device different from the first water treatment device 10A (own machine).
  • control unit 26 compares the raw water quality information in the first water treatment device 10A acquired in step S401 with the raw water quality information in the water treatment device different from the own machine acquired in step S402. Then, the control unit 26 determines whether the water quality and the behavior of the water quality change are the same in a certain period (step S403).
  • the control unit 26 acquires the raw water quality information in the second water treatment device 10B from the server 300. Then, in step S403, the control unit 26 compares the raw water quality information in the first water treatment device 10A with the raw water quality information in the second water treatment device 10B, and the behavior of the water quality and the water quality change in a certain period is the same. It is assumed that there is (YES).
  • the control unit 26 identifies that the comparison target areas are the correlation areas 210 (see FIG. 3) (step S404).
  • the specific range of the correlation area 210 is not uniquely determined because it is practically related to various factors such as the topography, geology, and climate of the area, but it is a range of about several tens of kilometers. Can be.
  • the control unit 26 acquires the raw water quality information in the third water treatment device 10C from the server 300. Then, in step S403, the control unit 26 compares the raw water quality information in the first water treatment device 10A with the raw water quality information in the third water treatment device 10C, and the behavior of the water quality and the water quality change in a certain period is the same. It is assumed that it cannot be said (NO).
  • the control unit 26 specifies that the comparison target areas are not the correlation areas 210 (step S405). That is, in this case, the first water treatment device 10A and the third water treatment device 10C are individually controlled.
  • control unit 26 ends the area identification process shown in FIG. 7 and shifts to the operation condition determination process shown in FIG.
  • the operating condition determination step is a step of determining the operating conditions adopted in the second water treatment step this time.
  • FIG. 8 is a flowchart showing a specific flow of the operation condition determination process.
  • the control unit 26 acquires information on the water state measured by each measurement unit and past operation record information recorded in the information recording unit 61 (step S501).
  • the control unit 26 acquires external information from the server 300 via the transmission / reception unit 28 as an external information acquisition process (step S502).
  • the control unit 26 includes information on the water state measured by each measurement unit in the second water treatment device 10B acquired by the server 300 from the second water treatment device 10B, past operation record information, and the correlation area 210. Acquire weather information in and the surrounding area as external information.
  • control unit 26 optimizes the operation conditions based on the information regarding the first water treatment device 10A acquired in step S501 and the external information acquired in step S502 (step). S503).
  • the selection of the filter medium to be used in the filtration device 20 and the amount of the additive added to the raw water from the additive supply unit 24 are set in advance before various water treatment steps.
  • the control unit 26 refers to the information on the water quality of the raw water by the raw water quality sensor 50 and the information on the water quality of the treated water by the treated water quality sensor 51, the control unit 26 promptly responds even when the water quality of the raw water changes. can do.
  • FIG. 9 is a flowchart showing a flow of measures taken by the control unit 26 when a change occurs in the quality of raw water.
  • the control unit 26 sets in advance a reference value regarding the water quality of raw water or treated water.
  • the reference value regarding water quality may be, for example, a conforming value or a conforming range stipulated in advance in the country or local government where the area where the water treatment device 10 is installed exists, or the area concerned. It may be a conforming value or a conforming range set independently.
  • control unit 26 determines whether the measured value of the raw water quality measured by the raw water quality sensor 50 satisfies the preset reference value (step S601). Here, if the control unit 26 determines that the measured value satisfies the reference value (YES), no further action is required.
  • step S601 determines in step S601 that the measured value does not satisfy the reference value (NO)
  • the measured value regarding the water quality of the treated water measured by the treated water quality sensor 51 is next.
  • step S602 It is determined whether or not the preset reference value is satisfied (step S602).
  • the control unit 26 determines that the measured value satisfies the reference value (YES)
  • no further action is required.
  • step S603 the control unit 26 may appropriately adjust the specific addition amount based on the difference between the measured value and the reference value regarding the water quality of the raw water. Then, when step S603 is executed, the amount of the additive contained in the additive supply unit 24 is reduced.
  • the control unit 26 causes the additive measurement unit to measure the amount of the additive contained in the additive supply unit 24, and the amount measured by the additive measurement unit is a preset lower limit. It is determined whether it is smaller than the value (step S604).
  • the additive measuring unit is the additive weight sensor 55
  • the weight of the additive contained in the additive supply unit 24 is measured.
  • the additive measuring unit is an additive high-level sensor instead of the additive weight sensor 55
  • the height position of the additive housed in the additive supply unit 24 is measured.
  • the control unit 26 determines that the measured amount is larger than the lower limit value (NO), no further action is required.
  • step S604 when the control unit 26 determines in step S604 that the measured amount is smaller than the lower limit value (YES), then, as an information transmission step, the control unit 26 is added to the additive information output unit 66.
  • Information that the agent needs to be replenished is output to various places inside or outside (step S605).
  • the various parts inside refer to, for example, a display unit 65 and a warning light (not shown).
  • the external parts are, for example, monitors (not shown) installed in the first house 200A. According to the output to each of these places, the user can quickly recognize the information that the additive needs to be replenished, the amount of the additive to be replenished, and the like.
  • the control unit 26 ends the coping step that can be taken when the water quality of the raw water shown in FIG. 9 changes.
  • control unit 26 can quickly determine the timing of backwashing by the backwashing mechanism by referring to the pressure value of the raw water on the upstream side of the filtration device 20 by the pressure sensor 52.
  • the control unit 26 determines that backwashing is unnecessary, assuming that the filtration capacity of the above is obtained.
  • the control unit 26 determines that the filtration device 20 needs backwashing. May be good.
  • control unit 26 can quickly determine the amount of treatment by the filtration device 20 by referring to the water amount value of the treated water by the water amount meter 53. For example, when the control unit 26 determines that the amount of processing in the filtration device 20 has decreased, the control unit 26 may set the time for the subsequent filtration step (step S202) to be longer.
  • control unit 26 can quickly recognize the amount of treated water used in the first house 200A by referring to the water level of the treated water in the water storage tank 22 by the water level sensor 54. For example, the control unit 26 may optimize the operating conditions so that the optimum amount of the treated water is always stored in the water storage tank 22 based on the amount of the treated water used in the first house 200A.
  • the second water treatment device 10B Since the second water treatment device 10B is installed in the same correlation area 210 as the first water treatment device 10A, information and the like regarding the water state in the second water treatment device 10B are basically the first water treatment. It is similar to the information about the water condition in the device 10A. Here, if a large change occurs in the information regarding a certain water state in the second water treatment device 10B, it is conceivable that the same change will occur in the first water treatment device 10A in the near future. In this case, the control unit 26 of the first water treatment device 10A grasps the sign of the change in advance even if the information regarding the water state does not change significantly in the first water treatment device 10A, and the change is concerned. The operating conditions can be optimized according to the degree of change.
  • control unit 26 can also recognize that the information on the water condition may change in the near future by referring to the meteorological information in the correlation area 210 and the surrounding area. For example, when rainfall occurs in the correlation area 210 or the surrounding area, the control unit 26 predicts that the quality of the raw water will deteriorate in the near future, and optimizes the operating conditions according to the prediction. Can be done.
  • control unit 26 predicts that the quality of the raw water will deteriorate in the near future based on the weather information, is the amount of treated water used increasing based on the water level of the treated water in the water storage tank 22 by the water level sensor 54? May be judged together.
  • the control unit 26 determines that the amount of treated water used is increasing, it is determined that the treated water will continue to be used in the first house 200A, and the water storage tank 22 will be filled in advance.
  • the subsequent filtration step (step S202) may be continued until.
  • control unit 26 can specify the time when the drought is predicted and optimize the operation conditions based on at least one of the past operation record information or the weather information. For example, since it is not always possible to secure raw water at the time of drought, the control unit 26 imposes water intake restrictions and sets operating conditions so as to avoid the depletion of treated water in the water storage tank 22 in advance. It may be set.
  • the control unit 26 can optimize the operating conditions by executing at least some of the methods illustrated above.
  • control unit 26 ends the operation condition determination process shown in FIG. 8 and shifts to the operation condition recording process shown in FIG.
  • step S303 is a step of recording the operating conditions adopted in the current second water treatment step determined in step S302 in the information recording unit 61.
  • the control unit 26 executes various controls based on the operating conditions recorded in step S303.
  • the information transmission step (step S304) transmits information about the operating conditions recorded in step S303 and the correlation area 210 specified in the area identification step (step S301) to the server 300 via the transmission / reception unit 28. do.
  • control unit 26 ends the operation condition setting step shown in FIG. 6 and shifts to the filtration step (step S202) and the measurement step (step S203) in the second water treatment step shown in FIG.
  • the control unit 26 drives the filtration pump 40 and causes the filtration device 20 to purify the raw water to finally generate treated water (step S202).
  • the control unit 26 executes various controls based on the operating conditions set in step S201. For example, the control unit 26 operates as set in step S201 regarding whether or not the filtration step is performed until the water storage tank 22 is filled with the treated water, or the amount of the additive added by the additive supply unit 24. Judgment based on conditions.
  • control unit 26 causes each measuring unit to measure the water state related to the raw water or the treated water as a measuring step in accordance with the execution of step S202 (step S203).
  • step S203 is a process equivalent to step S103 in the first water treatment step.
  • step S204 the control unit 26 causes the information recording unit 61 to record various measurement results measured in step S203 and operation record information at the timing when the measurement results are obtained (step). S204). Note that step S204 is a process equivalent to step S104 in the first water treatment step.
  • the control unit 26 transmits the measurement result and the operation record information recorded in step S204 to the server 300 via the transmission / reception unit 28.
  • the control unit 26 determines whether any of the components included in the first water treatment device 10A needs to be replaced or repaired based on the measurement result and the operation record information recorded in step S204. Determine (step S206).
  • the components to be determined here are consumables such as a filter medium whose filtration capacity decreases depending on the period of use, and a power source such as a filtration pump 40.
  • a filter medium whose filtration capacity decreases depending on the period of use
  • a power source such as a filtration pump 40.
  • step S206 determines in step S206 that there is a component that needs to be replaced or repaired (YES)
  • the control unit 26 is external to the information output unit 64.
  • Information to that effect is output to various places (step S207).
  • the external parts refer to, for example, a manufacturing company that undertakes the manufacture of the water treatment device 10, a management company that performs maintenance and management of the water treatment system 1, and the like. After that, the control unit 26 ends the second water treatment step.
  • the water treatment device 10 transfers information between the filtration device 20 that purifies the raw water to generate the treated water, the measurement unit that measures the water state of the raw water or the treated water, and the server 300.
  • a transmission / reception unit 28 for transmission / reception is provided.
  • the water treatment apparatus 10 identifies a correlation area 210 having a correlation with the water quality of raw water based on the information on the water state acquired from the measurement unit and the external information acquired from the server 300 via the transmission / reception unit 28.
  • a control unit 26 for determining operating conditions for each correlation area 210 is provided.
  • the water treatment method includes a filtration step (step S103, step S202) for purifying the raw water to generate treated water, and a measurement step (step S103, step) for measuring the water state of the raw water or the treated water. S203) and included.
  • the water treatment method includes an external information acquisition step (step S107, step S402, step S502) for acquiring external information from the server 300.
  • the water treatment method specifies an area that identifies a correlated area 210 that correlates with the water quality of raw water based on the information on the water condition acquired in the measurement process and the external information acquired in the external information acquisition process (step S402).
  • the step (step S301) is included.
  • the water treatment method includes an operation condition determination step (step S302) for determining the operation conditions for each correlation area 210 specified in the area identification step.
  • another water treatment device 10 may already be installed in the correlation area 210 in which the water treatment device 10 is installed. Since there is a correlation between the quality of raw water in the correlated area 210, it is highly possible that the operating conditions of the plurality of water treatment devices 10 installed in the same correlated area 210 are similar to each other. In the water treatment device 10 and the water treatment method, since the correlation area 210 is specified and the operating conditions are determined for each correlation area 210, it is not necessary to individually determine the operating conditions for each of the plurality of water treatment devices 10. That is, if the water treatment devices 10 are installed in the same correlation area 210, the operating conditions can be alternately referred to via the server 300.
  • the water treatment device 10 may include an information recording unit 61 for recording past operation record information.
  • the control unit 26 may further specify the correlation area 210 based on the operation record information recorded in the information recording unit 61.
  • the control unit 26 identifies the correlation area 210 based on the accumulated operation record information, and as a result, it is specified. The reliability of the correlation region 210 can be improved.
  • the external information may be the past operation record information of the water treatment device different from the own machine.
  • the water treatment device different from the own machine corresponds to the second water treatment device 10B or the third water treatment device 10C in the above embodiment.
  • the external information may be information on the water quality of the raw water to be treated by the water treatment device different from the own machine.
  • the water quality of the raw water to be treated can be directly compared between the plurality of water treatment devices 10, so that the specified correlation area 210 or the final determination is made.
  • the reliability of operating conditions can be further improved.
  • the external information may be meteorological information.
  • control unit 26 can also refer to the behavior of the water quality change of the raw water, and therefore, for example, the correlation area 210 or the correlation area 210 specified by predicting the future water quality change. The reliability of the finally determined operating conditions can be further improved.
  • the water state measured by the measuring unit may be a state related to the water quality of raw water or treated water.
  • control unit 26 can refer to the water state as sufficient information when specifying the correlation area 210 or determining the operating conditions.
  • the measuring unit may be a raw water quality sensor 50 that measures turbidity, chromaticity, or iron concentration of raw water.
  • control unit 26 can easily or accurately recognize the state related to the water quality of the raw water.
  • the measuring unit may be a treated water quality sensor 51 that measures the turbidity, chromaticity, or iron concentration of the treated water.
  • control unit 26 can easily or accurately recognize the state related to the water quality of the treated water.
  • the measuring unit may be a pressure sensor 52 for measuring the water pressure of raw water.
  • control unit 26 can refer to the water state as sufficient information when specifying the correlation area 210 or determining the operating conditions. Further, the control unit 26 can easily or accurately recognize the water pressure of the raw water.
  • the water state measured by the measuring unit may be a state related to the amount of treated water.
  • control unit 26 can refer to the water state as sufficient information when specifying the correlation area 210 or determining the operating conditions.
  • the water treatment device 10 may include a water storage tank 22 for storing treated water.
  • the measuring unit may be a water meter 53 that measures the amount of treated water flowing between the filtration device 20 and the water storage tank 22.
  • control unit 26 can easily or accurately recognize the amount of treated water.
  • the measuring unit may be a water level sensor 54 that detects the water level of the treated water stored in the water storage tank 22.
  • control unit 26 can easily or accurately recognize the water level of the treated water in the water storage tank 22.
  • the water treatment device 10 may be provided with an information output unit 64 that outputs an operating status to the outside.
  • the control unit 26 may determine whether or not any component included in the water treatment device 10 needs to be replaced or repaired based on the information regarding the water condition acquired from the measurement unit. Further, when the control unit 26 determines that the component needs to be replaced or repaired, the information output unit 64 may output information that the component needs to be replaced or repaired.
  • a worker who can carry out maintenance of the water treatment device 10 can be promptly notified that the component needs to be replaced or repaired. That is, the period during which the water treatment device 10 is stopped can be shortened as much as possible.
  • control unit 26 transfers at least one of the water state information acquired from the measurement unit and the operation record information to the server 300 via the transmission / reception unit 28. You may send it.
  • the control unit 26 attaches the new water treatment device 10 to the first water treatment device 10A via the server 300.
  • Information on the water condition and operation record information can be sent and referred to. That is, in this case, the new water treatment device 10 can quickly determine the operating conditions.
  • the water treatment device 10 is installed on the upstream side of the filtration device 20 and includes an additive supply unit 24 for adding an additive to the raw water so as to easily purify impurities contained in the raw water.
  • the control unit 26 sets a reference value regarding the water quality of the raw water or the treated water in advance, and based on the result of comparing the water state measured by the measurement unit with the reference value, the additive is added to the additive supply unit 24. You may increase the addition amount of.
  • the additive is automatically supplied at the discretion of the control unit 26, so that the convenience for the user can be improved.
  • the water treatment apparatus 10 includes an additive measuring unit that measures the amount of the additive contained in the additive supply unit 24, and an additive information output unit 66 that outputs information about the additive. May be provided.
  • the control unit 26 replenishes the additive information output unit 66 and the additive supply unit 24 with the additive. You may output the information that it is necessary.
  • the user can be promptly notified that the additive supply unit 24 needs to be replenished with the additive, so that the user can avoid forgetting to replenish the additive. It is advantageous for shortening the stop period of the water treatment device 10.
  • the additive measuring unit may be an additive weight sensor 55 that measures the weight of the additive.
  • the additive measuring unit may be an additive high-level sensor that measures the high-level additive, instead of the additive weight sensor 55.
  • control unit 26 can easily or accurately recognize the amount of the additive contained in the additive supply unit 24.
  • the additive may be at least ozone gas as an oxidizing agent or an iron-based flocculant suitable for iron electrolytic treatment.
  • control unit 26 is in a correlated area having a correlation with the water quality of the raw water based on the information on the water state regarding the raw water or the treated water and the external information acquired from the server 300.
  • the process of specifying 210 is executed.
  • the water treatment program executes a process of determining the operating conditions for each of the specified correlation areas 210.

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Abstract

L'invention concerne un dispositif de traitement de l'eau (10) comprenant : un dispositif de filtration (20) qui purifie l'eau brute de manière à produire de l'eau traitée ; une unité de mesure qui mesure un état de l'eau relatif à l'eau brute ou à l'eau traitée ; une unité de transmission/réception (28) qui transmet/reçoit des informations vers/depuis un serveur (300) ; et une unité de commande (26) qui, sur la base d'informations relatives à l'état de l'eau acquises à partir de l'unité de mesure et d'informations externes acquises à partir du serveur (300) par le biais de l'unité de transmission/réception (28), précise une région de corrélation (210) corrélée avec la qualité de l'eau brute de manière à déterminer une condition de fonctionnement pour chaque région de corrélation (210). L'unité de mesure consiste, par exemple, en un capteur de qualité de l'eau brute (50) qui mesure la turbidité, la chromaticité ou la concentration en fer de l'eau brute.
PCT/JP2021/018581 2020-05-20 2021-05-17 Dispositif de traitement de l'eau, procédé de traitement de l'eau, et programme de traitement de l'eau Ceased WO2021235384A1 (fr)

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000061444A (ja) * 1998-08-19 2000-02-29 Mitsubishi Electric Corp 水管理システム
JP2009254924A (ja) * 2008-04-11 2009-11-05 Panasonic Electric Works Co Ltd 水処理カートリッジおよびこれを装着した水処理装置
JP2010099629A (ja) * 2008-10-27 2010-05-06 Sanyo Electric Co Ltd 電解水放出装置
CN105739406A (zh) * 2014-12-12 2016-07-06 佛山市顺德区美的饮水机制造有限公司 净水器及其监控系统和监控方法
JP2018051497A (ja) * 2016-09-29 2018-04-05 マクセルホールディングス株式会社 水処理システム
WO2018124286A1 (fr) * 2016-12-28 2018-07-05 株式会社ウェルシィ Système de surveillance à distance, procédé de surveillance à distance, programme de surveillance à distance, dispositif de création d'image, procédé de création d'image et programme de création d'image
WO2018124291A1 (fr) * 2016-12-28 2018-07-05 三菱ケミカル・クリンスイ株式会社 Purificateur d'eau, système de purification d'eau, système de gestion de purificateur d'eau et procédé de détection de l'état d'utilisation d'un purificateur d'eau

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000061444A (ja) * 1998-08-19 2000-02-29 Mitsubishi Electric Corp 水管理システム
JP2009254924A (ja) * 2008-04-11 2009-11-05 Panasonic Electric Works Co Ltd 水処理カートリッジおよびこれを装着した水処理装置
JP2010099629A (ja) * 2008-10-27 2010-05-06 Sanyo Electric Co Ltd 電解水放出装置
CN105739406A (zh) * 2014-12-12 2016-07-06 佛山市顺德区美的饮水机制造有限公司 净水器及其监控系统和监控方法
JP2018051497A (ja) * 2016-09-29 2018-04-05 マクセルホールディングス株式会社 水処理システム
WO2018124286A1 (fr) * 2016-12-28 2018-07-05 株式会社ウェルシィ Système de surveillance à distance, procédé de surveillance à distance, programme de surveillance à distance, dispositif de création d'image, procédé de création d'image et programme de création d'image
WO2018124291A1 (fr) * 2016-12-28 2018-07-05 三菱ケミカル・クリンスイ株式会社 Purificateur d'eau, système de purification d'eau, système de gestion de purificateur d'eau et procédé de détection de l'état d'utilisation d'un purificateur d'eau

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