WO2017221414A1 - 水アグリゲーター、水循環システム、制御装置、制御方法および制御プログラム - Google Patents

水アグリゲーター、水循環システム、制御装置、制御方法および制御プログラム Download PDF

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Publication number
WO2017221414A1
WO2017221414A1 PCT/JP2016/068885 JP2016068885W WO2017221414A1 WO 2017221414 A1 WO2017221414 A1 WO 2017221414A1 JP 2016068885 W JP2016068885 W JP 2016068885W WO 2017221414 A1 WO2017221414 A1 WO 2017221414A1
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WIPO (PCT)
Prior art keywords
water
tanks
quality standard
facilities
water quality
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Application number
PCT/JP2016/068885
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English (en)
French (fr)
Japanese (ja)
Inventor
坂倉　隆史
Original Assignee
三菱電機株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 三菱電機株式会社 filed Critical 三菱電機株式会社
Priority to PCT/JP2016/068885 priority Critical patent/WO2017221414A1/ja
Priority to CN201680082837.2A priority patent/CN109311701B/zh
Priority to TW105126050A priority patent/TWI593859B/zh
Publication of WO2017221414A1 publication Critical patent/WO2017221414A1/ja

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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
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D9/00—Level control, e.g. controlling quantity of material stored in vessel
    • G05D9/12—Level control, e.g. controlling quantity of material stored in vessel characterised by the use of electric means
    • 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

  • the present invention relates to a water aggregator, a water circulation system, a control device, a control method, and a control program.
  • Patent Document 1 a purification device that purifies circulating water including discharged water flowing through a circulation channel in stages through a plurality of water quality levels and a plurality of water quality levels selected from each small water consumer.
  • a circulating water utilization system having a supply device that supplies circulating water of a water quality level to each small-bore water consumer is disclosed.
  • a purification device that purifies the circulating water in stages through a plurality of water quality levels is essential.
  • the water quality required in facilities that use water, such as factories varies depending on the application. There may be cases where high water quality is required, such as ultrapure water used in the manufacture of semiconductors or pharmaceuticals, and there are cases where high water quality is not required, such as water used for cooling. If the water discharged in one facility or process can be used as it is in another facility or process, it is a loss even if a purification device is introduced.
  • water quality is not something that can be simply divided into stages. Even if the concentration of volatile organic compounds is an indicator of water quality in one facility or process, the concentration of metal compounds is an indicator of water quality or the pH value is an indicator of water quality in another facility or process There is. Therefore, even if the purification device is introduced, it is lost unless the water is purified according to the required water quality index.
  • the present invention aims to promote effective use of water.
  • the water aggregator is: One or more first water storage tanks for storing water discharged from one or more of a plurality of facilities using water; One or more second water tanks for storing water to be supplied to at least one of the plurality of facilities; A water supply mechanism for sending water from the one or more first water tanks to the one or more second water tanks; An inspection device for inspecting the water quality of the one or more first water tanks; Determining whether the water stored in the one or more first water tanks meets a water quality standard set in the one or more second water tanks based on the inspection result of the inspection device; And a control device that instructs the water supply mechanism to send water from a first water tank that stores water that meets one water quality standard to a second water tank that has the one water quality standard set.
  • whether or not the water discharged from a certain facility may be supplied to the same facility or another facility is determined based on the inspection result of the water quality. For this reason, introduction of an unnecessary purification apparatus and an unnecessary purification process can be avoided, and effective use of water can be promoted.
  • FIG. 2 is a block diagram showing a configuration of a water aggregator and a facility according to the first embodiment.
  • FIG. 2 is a block diagram illustrating a configuration of a water aggregator control device according to the first embodiment.
  • 5 is a flowchart showing the operation of the facility control apparatus according to the first embodiment.
  • 3 is a flowchart showing the operation of the water aggregator control device according to the first embodiment.
  • 5 is a flowchart showing the operation of the facility control apparatus according to the first embodiment.
  • Embodiment 1 FIG. This embodiment will be described with reference to FIGS.
  • the water circulation system 100 may be constructed in an arbitrary place or region, but in this embodiment, it is constructed in one industrial park.
  • the water circulation system 100 may be constructed across two or more industrial parks.
  • the water circulation system 100 includes a water aggregator 110 and a plurality of facilities 120 that use water.
  • each facility 120 is a factory in an industrial park.
  • the number of facilities 120 may be an arbitrary number, but is eight in the present embodiment. Note that the facility 120 is not necessarily a factory in the same industrial park.
  • the water used in each facility 120 is supplied to the same facility 120 or another facility 120 or drained by the water aggregator 110.
  • the water aggregator 110 is connected to each facility 120 by a first pipe 131, a second pipe 132, and a third pipe 133.
  • the first pipe 131 is a pipe for sending reusable water from each facility 120 to the water aggregator 110.
  • the second pipe 132 is a water quality pipe through which the water aggregator 110 is compatible, that is, a pipe for sending reusable water from the water aggregator 110 to each facility 120.
  • the third pipe 133 is a pipe for sending sewage that cannot be reused from each facility 120 to the water aggregator 110.
  • the water aggregator 110 performs the drainage treatment of the water sent through the third pipe 133.
  • the kind and number of piping can be changed suitably.
  • Each facility 120 is connected to a public water supply (not shown) by a fourth pipe 134.
  • the fourth pipe 134 is a pipe for sending clean water from the outside to each facility 120.
  • Each facility 120 is not limited to a public water supply, and may be connected to a water supply source having the same or higher quality as the water supply.
  • FIG. 2 shows the configuration of only one facility 120.
  • the water quality required in the factory varies depending on the application. There may be cases where high water quality is required, such as ultrapure water used in the manufacture of semiconductors or pharmaceuticals, and there are cases where high water quality is not required, such as water used for cooling.
  • the water quality index varies depending on the factory or process. There are cases where the concentration of volatile organic compounds serves as an indicator of water quality, the concentration of metal compounds serves as an indicator of water quality, and the pH value serves as an indicator of water quality.
  • the water aggregator 110 defines the water quality standard of the water to be taken, and presents the purchase price and sales price of the water to the facility 120 which is the user.
  • one water quality standard is defined, but two or more water quality standards may be defined.
  • the facility 120 includes a cleaning device 121, a purification device 122, equipment 123, a fourth water tank 124, a fifth water tank 125, a discharge mechanism 126, and a control device 127.
  • the cleaning device 121 is a device that performs a cleaning process, which is one process of a manufacturing process in a factory, using industrial water supplied from the outside through the fourth pipe 134.
  • the purifying device 122 removes water used in the cleaning device 121 and satisfies the water quality standard defined by the water aggregator 110 in the fourth water tank 124, and the remaining contaminated water in the fifth water tank 125. It is a sending device.
  • the facility 123 is an apparatus, an apparatus, or a combination thereof that performs a process different from the cleaning process by using water supplied from the water aggregator 110 via the second pipe 132.
  • the fourth water tank 124 is a water tank for storing water of a certain quality.
  • the number of the fourth water storage tanks 124 is one in the present embodiment, but may be two or more.
  • the facility 120 may be provided with a plurality of fourth water tanks 124 corresponding to different water quality standards.
  • the fifth water tank 125 is a water tank for storing water whose quality is inferior to that of the water stored in the fourth water tank 124.
  • the number of the fifth water storage tanks 125 is one in the present embodiment, but may be two or more.
  • the cleaning device 121 consumes a large amount of water, but the water quality does not deteriorate so much. Therefore, an inexpensive device can be used as the purification device 122. If the water quality criteria defined by the water aggregator 110 can be satisfied even after the washing process, the purification device 122 is omitted and the water used by the washing device 121 is supplied to the fourth water storage tank 124. You may make it send directly.
  • the facility 120 including the purification device 122 and the facility 120 not including the purification device 122 may be mixed. That is, the configuration of each facility 120 may not be common.
  • the discharge mechanism 126 is a device, device, or a combination of these that discharges water.
  • the discharge mechanism 126 is a valve, a pump, or a combination thereof.
  • the control device 127 is a computer that controls the cleaning device 121, the purification device 122, the equipment 123, and the discharge mechanism 126.
  • the water aggregator 110 includes a first water tank 111, a second water tank 112, a third water tank 113, a water supply mechanism 114, an inspection device 115, a discharge mechanism 116, and a control device 117.
  • the first water tank 111 is a water tank for storing water discharged from one or more facilities 120.
  • the first water storage tank 111 may correspond to the facility 120 on a one-to-one basis, or may correspond to the facility 120 on a one-to-many basis. In any case, the water discharged from the corresponding facility 120 is stored in the first water tank 111.
  • the number of the 1st water tank 111 is one in this Embodiment, it is desirable that it is two or more. It is desirable that at least one first water tank 111 is provided for each facility 120.
  • the second water tank 112 is a water tank for storing water to be supplied to at least one facility 120.
  • Water quality standards are set for the second water tank 112. This water quality standard corresponds to the water quality standard defined in the water aggregator 110.
  • the number of the second water storage tanks 112 is one in the present embodiment, but may be two or more. In particular, when two or more water quality standards are defined, the water aggregator 110 includes a plurality of second water storage tanks 112 in which different water quality standards are set.
  • the third water tank 113 is a water tank for storing water that does not conform to the water quality standard set in the second water tank 112.
  • the number of the third water tanks 113 is one in the present embodiment, but may be two or more.
  • the water supply mechanism 114 is an apparatus, a device, or a combination thereof for sending water from the first water tank 111 to the second water tank 112 or the third water tank 113.
  • the water supply mechanism 114 is a valve, a pump, or a combination thereof.
  • the inspection device 115 is a device that inspects the water quality of the first water tank 111.
  • the discharge mechanism 116 is an apparatus, device, or a combination of these that discharges water.
  • the discharge mechanism 116 is a valve, a pump, or a combination thereof.
  • the water stored in the fourth water tank 124 of the facility 120 is sent to the water aggregator 110 via the first pipe 131 by the discharge mechanism 126 of the facility 120 and stored in the first water tank 111.
  • the quality of the water stored in the first water tank 111 is checked by the inspection device 115. If the defined water quality standard is satisfied, the water stored in the first water tank 111 is sent to the second water tank 112 by the water supply mechanism 114. On the other hand, if the defined water quality standard is not satisfied, the water stored in the first water tank 111 is sent to the third water tank 113 as contaminated water by the water supply mechanism 114. The water stored in the second water tank 112 is sent to the facility 120 via the second pipe 132 by the discharge mechanism 116 and used in the facility 123 of the facility 120. Since this water is not of high quality as used in the washing process, it is purchased at a low price. On the other hand, the water stored in the third water tank 113 is discarded.
  • the water stored in the fifth water storage tank 125 of the facility 120 is sent to the water aggregator 110 via the third pipe 133 by the discharge mechanism 126 of the facility 120 and stored in the third water storage tank 113. As described above, the water stored in the third water tank 113 is discarded.
  • the control device 117 is a computer that controls the water supply mechanism 114, the inspection device 115, and the discharge mechanism 116.
  • control device 117 The configuration of the control device 117 will be described with reference to FIG.
  • the control device 117 includes a processor 201 and other hardware such as a memory 202, an input device 203, a display 204, and a communication device 205.
  • the processor 201 is connected to other hardware via a signal line, and controls these other hardware.
  • the control device 117 includes a communication unit 210, a determination unit 220, and a control unit 230 as functional elements. Functions of “units” such as the communication unit 210, the determination unit 220, and the control unit 230 are realized by software.
  • the processor 201 is an IC that performs processing.
  • IC is an abbreviation for Integrated Circuit.
  • the processor 201 is a CPU.
  • CPU is an abbreviation for Central Processing Unit.
  • the memory 202 is a flash memory or a RAM.
  • RAM is an abbreviation for Random Access Memory.
  • the input device 203 is a mouse, a keyboard, or a touch panel.
  • the display 204 is an LCD.
  • LCD is an abbreviation for Liquid Crystal Display.
  • the communication device 205 includes a receiver that receives data and a transmitter that transmits data.
  • the communication device 205 is a communication chip or a NIC.
  • NIC is an abbreviation for Network Interface Card.
  • the memory 202 stores a program for realizing the function of “part”. This program is read into the processor 201 and executed by the processor 201.
  • the memory 202 also stores an OS. “OS” is an abbreviation for Operating System.
  • the processor 201 executes a program for realizing the function of “unit” while executing the OS. A part or all of the program for realizing the function of “unit” may be incorporated in the OS.
  • the program and OS that realize the function of “unit” may be stored in the auxiliary storage device.
  • the auxiliary storage device is a flash memory or an HDD. “HDD” is an abbreviation for Hard Disk Drive.
  • the program and OS stored in the auxiliary storage device are loaded into the memory 202 and executed by the processor 201.
  • the control device 117 may include a plurality of processors that replace the processor 201.
  • the plurality of processors share the execution of a program that realizes the function of “unit”.
  • Each processor is an IC that performs processing in the same manner as the processor 201.
  • Information, data, signal values, and variable values indicating the processing results of “unit” are stored in the memory 202, the auxiliary storage device, or a register or cache memory in the processor 201.
  • the program for realizing the function of “unit” may be stored in a portable recording medium such as a magnetic disk or an optical disk.
  • FIG. 4 shows the operation of the control device 127 when a cleaning process is performed by the cleaning device 121 in a certain facility 120.
  • step S11 the control device 127 receives information indicating that the cleaning process has been performed from the cleaning device 121.
  • the control device 127 instructs the purification device 122 to remove the water used in the cleaning device 121 according to the received information.
  • step S ⁇ b> 12 the control device 127 instructs the purification device 122 to send water that clears the water quality standard indicated by the water aggregator 110 in advance to the fourth water tank 124 and the remaining contaminated water to the fifth water tank 125.
  • the control device 127 clears each water quality standard.
  • the purification apparatus 122 is instructed to distribute the water to the corresponding fourth water tank 124.
  • step S13 the control device 127 instructs the discharge mechanism 126 to send the water stored in the fourth water tank 124 to the water aggregator 110.
  • FIG. 5 shows the operation of the control device 117 when the water aggregator 110 purchases water from a certain facility 120.
  • the operation of the control device 117 corresponds to the control method according to the present embodiment.
  • the operation of the control device 117 corresponds to the processing procedure of the control program according to the present embodiment.
  • step S21 the control unit 230 of the control device 117 performs transaction processing for purchasing water at a preset price.
  • step S22 the control unit 230 of the control device 117 instructs the inspection device 115 to inspect the water quality of the first water tank 111.
  • step S ⁇ b> 23 the communication unit 210 of the control device 117 receives the inspection result of the inspection device 115 using the communication device 205.
  • step S ⁇ b> 24 the determination unit 220 of the control device 117 sets the water stored in the first water tank 111 to the water quality standard set in the second water tank 112 based on the inspection result received by the communication unit 210. Determine if it fits.
  • the water quality standard is stored in the memory 202 as a water quality profile that specifies a threshold range for at least one of various indices such as the concentration of a volatile organic compound, the concentration of a metal compound, and the pH value. Therefore, the determination unit 220 accesses the memory 202 and collates the inspection result of the inspection device 115 with the water quality profile to determine whether or not the water stored in the first water tank 111 meets the water quality standard. judge.
  • step S25 determines whether it matches, the process of step S25 is performed, and if it does not match, the process of step S26 is performed.
  • a separate water quality profile is stored in the memory 202 for each water quality standard.
  • the determination part 220 determines whether the water stored in the 1st water tank 111 suits the water quality reference
  • step S ⁇ b> 25 the control unit 230 of the control device 117 stores the water that meets the water quality standard set in the second water storage tank 112 from the first water storage tank 111 to the second water storage tank determined by the determination unit 220.
  • the water supply mechanism 114 is instructed to send water to 112. That is, the control unit 230 instructs the water supply mechanism 114 to send water from the first water tank 111 storing water that meets one water quality standard to the second water tank 112 in which the one water quality standard is set. .
  • the control unit 230 determines, for each water quality standard, the first water tank 111 that is determined by the determination unit 220 to store water that conforms to the water quality standard.
  • the water supply mechanism 114 is instructed to send water to the second water tank 112 in which the water quality standard is set. That is, the control unit 230 sets each of the plurality of second water storage tanks 112 as the target water storage tanks, and supplies water to the target water storage tanks from the first water storage tank 111 that stores water that meets the water quality standards set in the target water storage tanks. To the water supply mechanism 114. Information indicating the correspondence relationship between the water quality standard and the second water storage tank 112 is stored in the memory 202 together with the above-described water quality profile, and is appropriately referred to by the control unit 230.
  • step S ⁇ b> 26 the control unit 230 supplies water from the first water tank 111, which is determined by the determination unit 220 to store water that does not meet the water quality standard set in the second water tank 112, to the third water tank 113.
  • the water supply mechanism 114 is instructed to send.
  • the water sent to the 3rd water tank 113 is discarded by the appropriate process after that as needed.
  • the control unit 230 stores the water that does not meet any of the water quality standards from the first water tank 111 determined by the determination unit 220 to the third water storage.
  • the water supply mechanism 114 is instructed to send water to the tank 113.
  • step S27 the control unit 230 instructs the discharge mechanism 116 to send the water stored in the second water storage tank 112 to the facility 120 of the sales destination.
  • FIG. 6 shows the operation of the control device 127 when water is purchased from the water aggregator 110 in a certain facility 120.
  • step S31 the control device 127 determines whether or not the water quality standard indicated by the water aggregator 110 is sufficient for the process performed by the facility 123. If sufficient, the process of step S32 is performed.
  • step S32 the control device 127 requests the water aggregator 110 to send water, and performs transaction processing for purchasing water at an appropriate low price.
  • water may be purchased at different prices according to the water quality standards. The price of water may be determined by an auction with another facility 120.
  • step S33 the control device 127 instructs the facility 123 to perform a necessary process using the water sent from the water aggregator 110.
  • water that satisfies the one or more water quality standards can be sold to the water aggregator 110, and Water that meets one or more water quality standards can be purchased from the water aggregator 110 at a low cost.
  • the price of water may be determined according to demand, or may be determined by an auction between factories that require water.
  • the water quality standard When there is little demand for water that satisfies a certain water quality standard, the water quality standard may be changed or the water quality index may be changed.
  • ⁇ Water quality standards may be added, changed or deleted as necessary.
  • the control device 117 of the water aggregator 110 receives demand information indicating a water quality standard required by the one or more facilities 120 from the outside, and based on the demand information, the one or more second water tanks 112 are received.
  • the water quality standard set in may be adjusted.
  • the communication unit 210 of the control device 117 receives demand information from the control device 127 of one or more facilities 120, and the determination unit 220 of the control device 117 uses the water quality profile stored in the memory 202. It may be updated to meet the water quality standard indicated by the demand information.
  • the control device 117 may receive information indicating the amount of water required by the one or more facilities 120 in addition to the water quality standards required by the one or more facilities 120 as the demand information.
  • the communication unit 210 of the control device 117 may receive demand information from the control device 127 of one or more facilities 120.
  • the determination part 220 of the control apparatus 117 can adjust the water quality reference
  • process X a process at a certain facility 120
  • another process, or a process at another facility 120 is referred to as “process Y”.
  • the determination unit 220 may integrate the water quality profile corresponding to the water quality standard required in the process X into the water quality profile corresponding to the water quality standard required in the process Y. That is, the determination unit 220 may divert the water quality profile corresponding to the stricter water quality standard required in the process Y to the determination of the water quality standard required in the process X.
  • control device 117 may set the price of the water stored in the one or more second water tanks 112 based on the demand information, and may transmit supply information indicating the set price to the outside. Specifically, the determination unit 220 of the control device 117 adjusts the price of water that conforms to the water quality standard indicated by the demand information according to the amount of water indicated by the demand information, and the communication unit 210 of the control device 117. However, supply information indicating the adjusted price may be transmitted to the control devices 127 of the plurality of facilities 120.
  • the control device 117 sets the water quality standards set in the one or more second water tanks 112 and the one or more second water tanks 112 for the auction conducted between the plurality of facilities 120.
  • Supply information indicating the amount of water may be generated, and the supply information may be transmitted to the outside.
  • the determination unit 220 of the control device 117 generates supply information from the water quality profile and other information stored in the memory 202, and the communication unit 210 of the control device 117 transmits the supply information to a plurality of facilities. You may transmit to 120 control apparatuses 127.
  • the function of “unit” is realized by software.
  • the function of “unit” may be realized by a combination of software and hardware. That is, a part of the function of “unit” may be realized by a dedicated electronic circuit, and the rest may be realized by software.
  • the dedicated electronic circuit is a single circuit, a composite circuit, a programmed processor, a parallel programmed processor, a logic IC, a GA, an FPGA, or an ASIC.
  • GA is an abbreviation for Gate Array.
  • FPGA is an abbreviation for Field-Programmable Gate Array.
  • ASIC is an abbreviation for Application Specific Integrated Circuit.
  • the processor 201, the memory 202, and the dedicated electronic circuit are collectively referred to as a “processing circuit”. That is, regardless of whether the function of “part” is realized by software or a combination of software and hardware, the function of “part” is realized by a processing circuit.
  • Part may be read as “Process”, “Procedure” or “Process”.
  • control device 117 As mentioned above, although embodiment of this invention was described, you may implement this embodiment partially. As a specific example, only some of the functional elements of the control device 117 according to this embodiment may be employed. In addition, this invention is not limited to this embodiment, A various change is possible as needed.
  • 100 water circulation system 110 water aggregator, 111 first water tank, 112 second water tank, 113 third water tank, 114 water supply mechanism, 115 inspection device, 116 discharge mechanism, 117 control device, 120 facility, 121 cleaning device, 122 Purifier, 123 equipment, 124, 4th water tank, 125, 5th water tank, 126, discharge mechanism, 127 control device, 131, 1st pipe, 132, 2nd pipe, 133, 3rd pipe, 134, 4th pipe, 201 processor, 202 Memory, 203 input device, 204 display, 205 communication device, 210 communication unit, 220 determination unit, 230 control unit.

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  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Physics & Mathematics (AREA)
  • Water Supply & Treatment (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Management, Administration, Business Operations System, And Electronic Commerce (AREA)
  • Testing And Monitoring For Control Systems (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
PCT/JP2016/068885 2016-06-24 2016-06-24 水アグリゲーター、水循環システム、制御装置、制御方法および制御プログラム WO2017221414A1 (ja)

Priority Applications (3)

Application Number Priority Date Filing Date Title
PCT/JP2016/068885 WO2017221414A1 (ja) 2016-06-24 2016-06-24 水アグリゲーター、水循環システム、制御装置、制御方法および制御プログラム
CN201680082837.2A CN109311701B (zh) 2016-06-24 2016-06-24 集水器、水循环系统、控制装置、控制方法和记录有控制程序的计算机可读记录介质
TW105126050A TWI593859B (zh) 2016-06-24 2016-08-16 Water collector, water circulation system, control device, control method and control program product

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PCT/JP2016/068885 WO2017221414A1 (ja) 2016-06-24 2016-06-24 水アグリゲーター、水循環システム、制御装置、制御方法および制御プログラム

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