JP6256143B2 - Remote management control system for ion exchange equipment - Google Patents

Description

  The present invention relates to a remote management control system for an ion exchange device that remotely controls a plurality of ion exchange devices installed in an area of the same water source.

Conventionally, a remote monitoring control system including a plurality of water treatment devices and a remote monitoring control device that is connected to be able to communicate with the plurality of water treatment devices and remotely monitors and controls the plurality of water treatment devices is known ( For example, see Patent Document 1). In the remote monitoring control system described in Patent Literature 1, based on the analysis result of monitoring information acquired from a plurality of water treatment devices, the same water treatment device as the water treatment device from which the monitoring information is obtained, or the monitoring information It is said that comprehensive remote monitoring and control can be performed on a water treatment device different from the water treatment device from which it is acquired.
In the remote monitoring and control system described in Patent Document 1, the plurality of water treatment devices filter (treat) waste water discharged from a factory.

Japanese Patent No. 5259467

  When the water treatment apparatus is an ion exchange apparatus, the ion exchange apparatus removes ions to be removed from the raw water by introducing the raw water into the ion exchange resin bed, and regenerates the water treatment process. And a regeneration process for regenerating the ion exchange resin bed by introducing the liquid. In the ion exchange apparatus, since the ion exchange capacity decreases as the treated water is produced, the regeneration timing for executing the regeneration process is one of the important management items. In addition, the degree of decrease in the ion exchange capacity of the ion exchange resin bed in the ion exchange device depends on the accumulated flow rate and accumulated time of the raw water introduced into the ion exchange resin device, and depends on the quality of the raw water introduced into the ion exchange device. Is also different.

Therefore, in a configuration including a plurality of ion exchange devices, it is preferable that the regeneration timing for executing the regeneration process can be adjusted when the quality of the raw water introduced into the plurality of ion exchange devices varies. If the regeneration timing for executing the regeneration process in a plurality of ion exchange devices can be remotely controlled from a remote location, the plurality of ion exchange devices can be comprehensively managed, which is very useful.
Therefore, in a configuration including a plurality of ion exchange devices, when the water quality of the raw water fluctuates, the plurality of ion exchange devices are integrated by remotely controlling the plurality of ion exchange devices with respect to the regeneration timing for executing the regeneration process. Management is desired.

  The present invention can comprehensively manage a plurality of ion exchange devices by remotely controlling a plurality of ion exchange devices with respect to a regeneration timing at which a regeneration process is performed when fluctuations in the quality of raw water occur. An object of the present invention is to provide a remote management control system for an ion exchange device.

The present invention is a plurality of ion exchange apparatuses that are installed in an area of the same water source, and remove treated ions contained in the raw water by introducing the raw water from the same water source into the ion exchange resin bed, thereby producing treated water. A remote control unit disposed at a remote location geographically separated from the plurality of ion exchange devices, connected to be able to communicate with the plurality of ion exchange devices, and remotely controlling the plurality of ion exchange devices by communication from a remote location And an analysis data storage unit that stores analysis data of the concentration of ions to be removed of raw water introduced into the plurality of obtained ion exchange devices, and the remote control unit is stored in the analysis data storage unit Information on the amount of ions that can be removed in each of the plurality of ion exchange devices to be managed when the fluctuation range of the concentration of ions to be removed is outside a predetermined range. And a plurality of ion exchange devices that calculate a regeneration timing for causing each of the plurality of ion exchange devices to execute a regeneration process, based on analysis information and analysis data information that is information of the analysis data relating to the concentration of ions to be removed. For each, the setting is changed by remote control so that a preset regeneration timing becomes the calculated regeneration timing, and the ion exchange device includes a flow rate detection unit capable of detecting the flow rate of water in the ion exchange resin bed, And an integrated water flow rate calculating means for calculating an integrated water flow rate based on the flow rate of water detected by the flow rate detecting unit, and the integrated water flow rate calculated by the integrated water flow rate calculating means is When the preset upper limit water flow rate is reached, the regeneration process can be executed, and the remote control unit can manage the plurality of events to be managed. And the specification information of each-exchange device, based on said analysis data information of the analytical data, the calculation formula of [upper limit through water = removable weight ÷ removal target ion concentration, in each of the plurality of ion exchanger It is preferable to calculate an upper limit water flow rate and change the setting by remote control so that a preset upper water flow rate is updated to the calculated upper limit water flow rate for each of the plurality of ion exchange devices.

Also, a plurality of ion exchange devices that are installed in an area of the same water source and remove treated ions contained in the raw water by introducing raw water from the same water source into the ion exchange resin bed, and the treated water, A remote control unit disposed at a remote location geographically separated from the plurality of ion exchange devices, connected to be able to communicate with the plurality of ion exchange devices, and remotely controlling the plurality of ion exchange devices by communication from a remote location; An analysis data storage unit that stores analysis data of the concentration of ions to be removed of raw water introduced into the plurality of acquired ion exchange devices, and the remote control unit is a removal stored in the analysis data storage unit Specification including information on the removal amount of ions to be removed in each of the plurality of ion exchange devices to be managed when the fluctuation range of the target ion concentration with time is outside a predetermined range Information and the analysis data information that is information of the analysis data related to the removal target ion concentration, and calculates a regeneration timing for executing a regeneration process in each of the plurality of ion exchange devices, and each of the plurality of ion exchange devices On the other hand, the setting is changed by remote control so that a preset regeneration timing becomes the calculated regeneration timing, and the ion exchange device has a flow detection unit capable of detecting the flow of water in the ion exchange resin bed, An integrated water passage time calculating means for calculating an integrated water passage time based on the water distribution state detected by the flow detector, and the integrated water passage time calculated by the integrated water passage time calculating means. When the preset upper limit water flow time is reached, the regeneration process can be executed, and the remote control unit is configured to manage the plurality of management targets. And on switching device of each of the specification information, based on said analysis data information of the analytical data, the calculation formula of [upper limit water flow time = removable weight ÷ removal target ion concentration ÷ maximum load flow, said plurality of Calculate the upper limit water flow time in each ion exchange device, and change the setting by remote control so that the preset upper water flow time is updated to the calculated upper water flow time for each of the plurality of ion exchange devices It is preferable to do.

Also, a plurality of ion exchange devices that are installed in an area of the same water source and remove treated ions contained in the raw water by introducing raw water from the same water source into the ion exchange resin bed, and the treated water, A remote control unit disposed at a remote location geographically separated from the plurality of ion exchange devices, connected to be able to communicate with the plurality of ion exchange devices, and remotely controlling the plurality of ion exchange devices by communication from a remote location; An analysis data storage unit that stores analysis data of the concentration of ions to be removed of raw water introduced into the plurality of acquired ion exchange devices, and the remote control unit is a removal stored in the analysis data storage unit Specification including information on the removal amount of ions to be removed in each of the plurality of ion exchange devices to be managed when the fluctuation range of the target ion concentration with time is outside a predetermined range Information and the analysis data information that is information of the analysis data related to the removal target ion concentration, and calculates a regeneration timing for executing a regeneration process in each of the plurality of ion exchange devices, and each of the plurality of ion exchange devices On the other hand, the setting is changed by remote control so that a preset regeneration timing is the calculated regeneration timing, and the ion exchange device has a timer unit that counts the number of days elapsed from the previous regeneration timing, When the elapsed time counted by the timer unit reaches a preset regeneration cycle day, the regeneration process can be executed, and the remote control unit is configured to manage each of the plurality of ion exchange devices to be managed. Based on the specification information and the analysis data information of the analysis data , [regeneration cycle days <removable amount ÷ removable target The regeneration cycle days in each of the plurality of ion exchange devices are calculated by the formula of “ion concentration / maximum amount of water used per day”, and the preset regeneration cycle days for each of the plurality of ion exchange devices are calculated. It is preferable to change the setting by remote control so that it is updated to the reproduction cycle days.

  The ion exchange device is a water softening device that removes hardness components as ions to be removed contained in the raw water to produce treated water by introducing the raw water from the same water source into the cation exchange resin bed. It is preferable.

  In addition, the ion exchange device introduces raw water from the same water source into a double bed or mixed bed of cation exchange resin and anion exchange resin, thereby removing cations and anions as ions to be removed contained in the raw water. It is preferable that it is a pure water manufacturing apparatus which removes and manufactures treated water.

  According to the present invention, when a change occurs in the quality of raw water, the plurality of ion exchange devices can be comprehensively managed by remotely controlling the plurality of ion exchange devices with respect to the regeneration timing for executing the regeneration process. It is possible to provide a remote management control system for an ion exchange apparatus capable of

1 is an overall configuration diagram of a remote management control system 1 for an ion exchange device according to an embodiment of the present invention. It is a functional block diagram which concerns on control of the remote management control system 1 of the ion exchange apparatus of this embodiment. It is a flowchart which shows the process sequence of the 1st operation example of the remote management control system 1 of the ion exchange apparatus of this embodiment. It is a flowchart which shows the process sequence of the 2nd operation example of the remote management control system 1 of the ion exchange apparatus of this embodiment. It is a flowchart which shows the process sequence of the 3rd operation example of the remote management control system 1 of the ion exchange apparatus of this embodiment.

  Hereinafter, an embodiment of a remote management control system 1 for an ion exchange apparatus according to the present invention will be described with reference to the drawings. FIG. 1 is an overall configuration diagram of a remote management control system 1 for an ion exchange apparatus according to the present invention. FIG. 2 is a functional block diagram relating to the control of the remote management control system 1 of the ion exchange device of the present embodiment.

  As shown in FIG. 1, a remote management control system 1 for an ion exchange device according to the present embodiment remotely controls a plurality of ion exchange devices 2 a to 2 c by communication from a remote location via a network 3. The network 3 is a wide-area communication network using wired communication or wireless communication.

  The remote management control system 1 of the ion exchange device includes a water source 4, a plurality of ion exchange devices 2a to 2c, a remote control device 5, a plurality of raw water lines L1a to L1c, and a plurality of treated water lines L2a to L2c, A plurality of raw water flow meters 6a to 6c. “Line” is a general term for lines capable of flowing fluid such as flow paths, paths, and pipelines.

  Several ion exchange apparatus 2a-2c is installed in the area of the same water source 4. FIG. The area within the same water source 4 refers to the area where the raw water W1 from the same water source 4 can be supplied. The plurality of ion exchange devices 2a to 2c installed in the area of the same water source 4 include, for example, a plurality of ion exchange devices installed in geographically different business establishments or remote sites in the same company, In addition, a plurality of ion exchange devices used for a plurality of users in geographically separated regions and a plurality of ion exchange devices installed in geographically separated regions in another company are included. The plurality of ion exchange devices 2a to 2c may not all be installed apart from each other, and some or all of them may be installed nearby.

  The ion exchange device 2a is, for example, an ion exchange device used by the user X. The ion exchange device 2b is, for example, an ion exchange device used by the user Y. The ion exchange device 2c is, for example, an ion exchange device used by the user Z. In addition, the user who uses several ion exchange apparatus 2a-2c is not limited to this, For example, ion exchange apparatus 2a and 2b may be the ion exchange apparatus which user X uses, and ion exchange apparatus 2c is It may be an ion exchange device used by the user Y. In this case, for example, the ion exchange devices 2a and 2b used by the user X are installed at close positions, and the ion exchange device 2c used by the user Y is geographically separated from the ion exchange devices 2a and 2b used by the user X. You may install in the position spaced apart.

  Each of the plurality of ion exchange devices 2a to 2c includes ion exchange resin beds 21a to 21c, ion exchange control units 22a to 22c, and a control valve (not shown). The raw water W1 is supplied from the same water source 4 (for example, a water purification plant, a reservoir, etc.) to each of the plurality of ion exchange devices 2a to 2c via the raw water lines L1a to L1c. General raw water lines L1a to L1c are composed of a water pipe network (for example, industrial water supply or water supply) laid and managed by local governments or local public bodies, and water supply pipes laid and managed by each user. Has been. The raw water lines L1a to L1c are connected to the water source 4 on the upstream side, and are connected to the plurality of ion exchange devices 2a to 2c on the downstream side.

  The raw water lines L1a to L1c are provided with raw water flow meters 6a to 6c as a flow detection unit and a flow rate detection unit, respectively. Each of the raw water flow meters 6a to 6c is connected to the raw water lines L1a to L1c via the connecting portions J1a to J1c.

  The raw water flow meters 6a to 6c can detect the presence or absence of water flow in the ion exchange devices 2a to 2c by the flow pulse of the raw water W1, and function as a flow detection unit. Moreover, the raw | natural water flowmeters 6a-6c can detect the inflow water quantity of the ion exchange apparatuses 2a-2c with the flow rate pulse of the raw | natural water W1, and also function as a flow volume detection part. Flow detection signals from the raw water flow meters 6a to 6c are input to the ion exchange devices 2a to 2c. The raw water flow meters 6a to 6c are flow sensors configured to be able to detect an instantaneous flow rate and an integrated flow rate. For example, a tangential flow rate sensor or an axial flow rate sensor can be used. In addition, when only the function as a distribution | circulation detection part is calculated | required, the raw | natural water flowmeters 6a-6c in this embodiment can also employ | adopt the flow switch which outputs a contact signal on / off instead of a flow sensor.

  Further, the flow meters (raw water flow meters 6a to 6c) in the present embodiment can be provided in the plurality of treated water lines L2a to L2c instead of the plurality of raw water lines L1a to L1c. When the flowmeter is provided in the treated water lines L2a to L2c, it functions as a flow rate detection unit that detects the amount of effluent water from the ion exchange devices 2a to 2c by the flow rate pulse of the treated water W2. That is, with respect to an arbitrary ion exchange device 2, the flow meter may be provided on either the raw water line L1 or the treated water line L2.

  Each of the plurality of ion exchange apparatuses 2a to 2c manufactures treated water W2a to W2c by removing the ions to be removed contained in the raw water W1 by introducing the raw water W1 from the same water source 4 to the ion exchange resin beds 21a to 21c. To do. Each of the plurality of ion exchange apparatuses 2a to 2c supplies the manufactured treated water W2a to W2c to the demand point via the treated water lines L2a to L2c. The treated water lines L <b> 2 a to L <b> 2 c are connected to the plurality of ion exchange devices 2 a to 2 c on the upstream side, and connected to the demand point on the downstream side.

  In addition, in the following description, when it is not necessary to distinguish a plurality or a singular, a plurality of ion exchange devices 2a to 2c, a plurality of ion exchange resin beds 21a to 21c, a plurality of ion exchange control units 22a to 22c, a process The identification symbols “a”, “b”, and “c” of the waters W2a to 2c are omitted, and only “ion exchange device 2”, “ion exchange resin bed 21”, “ion exchange control unit 22”, and It is described as “treated water W2.”

  The ion exchange device 2 is variously selected according to the type of ions to be removed in the raw water W1. Examples of the ion exchange device 2 include a water softening device, a pure water production device, and a nitrate nitrogen removal device. Further, the plurality of ion exchange devices 2a to 2c in the present embodiment may be any of a water softening device, a pure water production device, a nitrate nitrogen removal device, etc., or some or all may be of the same type, all May be of different types.

  When the ion exchange device 2 is a water softening device, the water softening device has a cation exchange resin bed as the ion exchange resin bed 21. The water softening device introduces the raw water W1 from the same water source 4 into the cation exchange resin bed, thereby removing the hardness components (calcium ions and magnesium ions) as the ions to be removed contained in the raw water W1, and treating the treated water W2. It is a device to manufacture. The water softening device generates soft water by replacing the hardness component contained in the raw water W1 with sodium ions or potassium ions. The hard water softening device is used, for example, for the purpose of supplying soft water to a demand point as various irrigation water such as make-up water for a steam boiler or food production.

  When the ion exchange apparatus 2 is a pure water production apparatus, the pure water production apparatus has a cation exchange resin and an anion exchange resin of a double bed or a mixed bed as the ion exchange resin bed 21. The pure water production apparatus introduces the raw water W1 from the same water source 4 into the cation exchange resin and the anion exchange resin of the double bed or the mixed bed, so that the cation and the anion as the removal target ions contained in the raw water W1 are obtained. It is an apparatus that removes and manufactures treated water W2 (pure water, deionized water). The pure water production apparatus is used, for example, for the purpose of supplying high-purity pure water not containing impurities to demand points as various types of water for manufacturing pharmaceuticals and cosmetics, washing electronic parts and precision equipment.

As a double-bed type pure water production apparatus having a double-bed cation exchange resin and an anion exchange resin, a so-called two-bed two-column type apparatus or one in which a single tower is divided into two chambers is used. is there.
A two-bed, two-column, double-bed type pure water production apparatus comprises a cation exchange column that contains a cation exchange resin bed and an anion exchange tower that contains an anion exchange resin bed. A tower and an anion exchange tower are connected in series. In a two-bed, two-column, double-bed type pure water production apparatus, raw water W1 is passed in the order of a cation exchange column and an anion exchange column to produce treated water W2.

  A single-bed pure water production apparatus in which a single tower is divided into two chambers includes a cation exchange resin chamber containing a cation exchange resin, and an anion exchange resin containing an anion exchange resin. The room is divided into two rooms. In a double-bed type pure water production apparatus in which the interior of a single tower is divided into two chambers, raw water W1 is passed through the cation exchange resin chamber and the anion exchange resin chamber in this order, and the raw water passed through. A treated water from which cations and anions are removed from W1 is produced.

  A mixed bed type pure water production apparatus having a mixed bed cation exchange resin and an anion exchange resin accommodates a cation exchange resin and an anion exchange resin in a mixed state. In the mixed bed type pure water production apparatus, the raw water W1 is introduced into the cation exchange resin and the anion exchange resin, and the treated water W2 from which the cations and anions are removed from the introduced raw water W1 is produced.

  When the ion exchange device 2 is a nitrate nitrogen removal device, the nitrate nitrogen removal device has an anion exchange resin bed as the ion exchange resin bed 21. The nitrate nitrogen removing device removes nitrate nitrogen (nitrate ions and nitrite ions) as ions to be removed contained in the raw water W1 by introducing the raw water W1 from the same water source 4 into the anion exchange resin bed. It is an apparatus for producing treated water W2. The nitrate nitrogen removing device replaces nitrate nitrogen contained in the raw water W1 with chloride ions to generate treated water W2.

  The plurality of ion exchange devices 2a to 2c each switch a control valve (not shown) to introduce the raw water W1 from the same water source 4 into the ion exchange resin beds 21a to 21c, thereby removing ions to be included in the raw water W1. It is possible to perform a water treatment process for producing treated water W2a to W2c by removing water and a regeneration process for regenerating the ion exchange resin bed by introducing a regeneration liquid from a regeneration liquid tank (not shown).

  As shown in FIG. 2, the ion exchange control unit 22 includes a process execution unit 221, an integrated water flow rate calculation unit 222 as an integrated water flow rate calculation unit, and an integrated water flow time calculation as an integrated water flow time calculation unit. Part 223 and timer part 224.

  The process execution unit 221 executes a water treatment process and a regeneration process by controlling opening and closing of a control valve (not shown) provided in the ion exchange device 2.

  The integrated water flow rate calculation unit 222 calculates the integrated water flow rate based on the flow rate of water detected by the raw water flow meter 6. The accumulated water flow rate calculation unit 222 starts measuring the accumulated flow rate when a state in which the flow rate pulse is input from the raw water flow meter 6 continues for a predetermined time (for example, 10 seconds). The integrated water flow rate calculation unit 222 counts the input signal of the flow rate pulse from the raw water flow meter 6 and calculates the integrated flow rate of the raw water W1 introduced into the ion exchange device 2. Further, when the regeneration process is executed, the integrated water flow rate calculation unit 222 resets the integrated flow rate that has been integrated up to that point.

  The accumulated water passage time calculation unit 223 calculates the accumulated water passage time based on the water circulation state (presence / absence of water circulation) detected by the raw water flow meter 6. The accumulated water flow time calculation unit 223 calculates the accumulated water flow time of the raw water W1 introduced into the ion exchange device 2 by counting the accumulated time of the input of the flow rate pulse from the raw water flow meter 6 with an internal clock. Further, when the regeneration process is executed, the accumulated water passage time calculation unit 223 resets the accumulated time accumulated so far.

  The timer unit 224 measures the number of days that have elapsed since the previous reproduction timing. The timer unit 224 includes a calendar timer and an interval timer. When the timer unit 224 is a calendar timer, it has a clock function that counts the current date and time (current time). When the timer unit 224 is an interval timer, it has a function of counting the period of the reproduction timing.

The process execution unit 221 can execute flow rate regeneration, time regeneration, or periodic regeneration in the regeneration process. The flow rate regeneration executed in the regeneration process of the process execution unit 221 is executed when the integrated water flow rate calculated by the integrated water flow rate calculation unit 222 reaches a preset upper limit water flow rate. The time regeneration executed in the regeneration process of the process execution unit 221 is performed when the accumulated water flow time calculated by the accumulated water flow time calculating unit 223 reaches the preset upper water flow time. The periodic reproduction executed in the reproduction process of the process execution unit 221 is executed when the elapsed number of days counted by the timer unit 224 reaches a preset reproduction cycle number of days.
The upper limit water flow rate in the flow rate regeneration, the upper limit water flow time in the time regeneration, and the regeneration cycle days in the periodic regeneration are set in advance, and are calculated by the remote control unit 51 of the remote control device 5 described later according to the water quality of the raw water W1. Then, the setting is changed to the calculated value.

The remote control device 5 remotely controls the plurality of ion exchange devices 2a to 2c. The remote control device 5 includes a remote control unit 51 and an analysis data storage unit 52.
The analysis data storage unit 52 stores analysis data of the concentration of ions to be removed from the raw water W1 introduced into the plurality of acquired ion exchange devices 2a to 2c. For example, as the acquired analysis data, raw water W1 introduced into the ion exchange device 2 is sampled as sample water, and the sample water collected is analyzed at an analysis center (not shown), or ion exchange There is analysis data obtained by measuring the concentration of ions to be removed contained in the raw water W1 introduced into the apparatus 2 using a concentration detection sensor (not shown).

The analysis center is a facility that performs manual analysis of sample water outside the sampling site, and analyzes the sent sample water using the required analysis equipment. For example, the service engineer of the management company that has signed a maintenance contract for the ion exchange device 2 with each of the users X to Z periodically visits the customer. The analysis data obtained at the analysis center is transmitted to the remote control device 5 via a dedicated terminal provided in the analysis center and recorded in the analysis data storage unit 52.
On the other hand, the concentration detection sensor performs automatic analysis of sample water at the sampling site, and is a device provided at the installation site of the plurality of ion exchange devices 2a to 2c, specifically, the raw water lines L1a to L1c. Analysis data measured by the concentration detection sensor is transmitted to the remote control device 5 via the network 3 and recorded in the analysis data storage unit 52.

  The remote control unit 51 remotely controls the plurality of ion exchange devices 2a to 2c by communication from a remote place. The remote control unit 51, when the temporal variation width of the removal target ion concentration stored in the analysis data storage unit 52 is outside a predetermined range, specification information in each of the plurality of ion exchange devices 2a to 2c to be managed, Based on the recent information in the analysis data related to the ion concentration to be removed, the regeneration timing for executing the regeneration process in each of the plurality of ion exchange devices 2a to 2c is calculated.

  Here, the fluctuation range with time is outside the predetermined range, for example, the latest (or the latest N) water quality data is extracted every day at midnight, and ± 10 with respect to the water quality data at the time of the last change of the regeneration timing setting. Applicable when there is a fluctuation of over%. In this case, the remote control unit 51 executes a calculation for reviewing the reproduction timing.

The specification information is a concept including information on the amount of ions that can be removed in each of the plurality of ion exchange devices 2a to 2c to be managed. The information on the amount of ions that can be removed is information determined by the removal performance and removal capacity of the ions to be removed in the ion exchange resin beds 21a to 21c. For example, the specification information includes the amount of removable ions that can be removed by a single regeneration process (for example, when the ion exchange device 2 is a water softening device, the removable hardness mass of the ion exchange resin bed 21 [gCaCO ₃ / regeneration). ], And the model name of each of the plurality of ion exchange devices 2a to 2c to be managed associated with the removable ion amount. The specification information is stored in a memory of a microcomputer (not shown) of each of the plurality of ion exchange devices 2a to 2c, a database (not shown) of the remote control device 5, and the like.

  The recent information of the analysis data is not limited to the latest data, but is a concept that includes data that is somewhat dated (for example, data for the most recent N items). Since the recent information on the analysis data may require, for example, the number of days to be sent to the analysis center (not shown) of the sample water, the sample water is not collected in the order stored in the analysis data storage unit 52 described later. Judged based on the order of Wednesday. Even when the analysis data of the sample water and the analysis data of the detection value of the removal target ion concentration contained in the raw water W1 are mixed and stored in the analysis data storage unit 52, the detection date and sample of the raw water W1 are stored. Judgment is based on the order of water sampling dates.

For example, a case will be described in which the latest two pieces of analysis data are used as the recent information when the sampling date of the sample water is different from the storage date. Here, it is assumed that the raw water hardness (removal target ion concentration) was 60 g CaCO ₃ / m ³ at the time of setting the previous regeneration timing.

  As in the analysis data stored as of February 8 below, for example, at the time of February 8, the order of the storage date of the analysis data stored in the analysis data storage unit 52 is as follows. Analysis data N1 and analysis data N3. The order of the sampling date is analysis data N3 and analysis data N1 in order of date.

◎ Analytical data stored as of February 8 N1: Date of water sampling (January 5), raw water hardness 60 g CaCO ₃ / m ³ , storage date (January 10)
N3: Date of sampling (February 2), raw water hardness 63 g CaCO ₃ / m ³ , storage date (February 7)

  On February 10, analysis data N2 is newly stored on February 10 in the analysis data storage unit 52, as in the analysis data stored as of February 10 below. Thereby, the storage date order of the analysis data stored in the analysis data storage unit 52 is the analysis data N2, the analysis data N3, and the analysis data N1 in order from the newest date. The order of the water sampling dates is different from the order of the storage dates, and is the analysis data N3, the analysis data N2, and the analysis data N1 in the order of date.

◎ Analytical data stored as of February 10 N1: Date of water collection (January 5), raw water hardness 60 g CaCO ₃ / m ³ , storage date (January 10)
N2: sampling date (January 20), raw water hardness 68 g CaCO ₃ / m ³ , storage date (February 10)
N3: Date of sampling (February 2), raw water hardness 63 g CaCO ₃ / m ³ , storage date (February 7)

Here, for example, at the time of February 8, the latest two pieces of analysis data N1 (time variation width 0%: [(60-60) / 60] × 100 = 0%), analysis data N3 (time variation width) 5%: [(63-60) / 60] × 100 = 5%) is recent information. As of February 8, analysis data N1 (0% variation over time) and analysis data N2 (5% variation over time) have a raw water hardness of 60 g CaCO ₃ / m ³ at the time of the previous regeneration timing setting. Is within a range of ± 10%.
On the other hand, for example, as of February 10, the latest two pieces of analysis data N2 (13% variation with time: [(68-60) / 60] × 100 = 13%) and analysis data N3 (5 variation with time) %: [(63-60) / 60] × 100 = 5%) is recent information. As of February 10, analysis data N2 (13% variation over time) has a temporal variation range outside the range of ± 10% relative to the raw water hardness of 60 g CaCO ₃ / m ³ at the time of the previous regeneration timing setting. is there.
As described above, the order of the sampling date of the sample water and the storage date may differ depending on the timing of determining the recent information. However, based on the order of the sampling date of the sample water, It will be recent information.

The remote control unit 51 changes the setting for each of the plurality of ion exchange devices 2a to 2c by remote control so that the preset regeneration timing becomes the calculated regeneration timing.
The remote control unit 51 relates to the regeneration timing for executing the regeneration process of each of the plurality of ion exchange devices 2a to 2c, as described below, the upper limit water flow rate in the flow rate regeneration, the upper limit water flow time in the time regeneration, and the regeneration in the periodic regeneration. Periodic days are calculated, and settings are changed by remote control for each of the plurality of ion exchange devices 2a to 2c.

<Calculation of upper limit water flow rate in flow rate regeneration>
When each of the plurality of ion exchange devices 2a to 2c performs flow rate regeneration, the remote control unit 51 uses the specification information of each of the plurality of ion exchange devices 2a to 2c to be managed and the recent information of the analysis data. Based on the following formula (1a), the upper limit water flow rate in each of the plurality of ion exchange devices 2a to 2c is calculated, and the upper limit water flow rate set in advance for each of the plurality of ion exchange devices 2a to 2c. The setting is changed by remote control so that it is updated to the upper limit water flow calculated by.
Upper limit water flow rate [m ³ ] = removable amount [g, eq] ÷ removal target ion concentration [g / m ³ , eq / m ³ ] (1a)
The unit of the removable amount may be managed in grams (g) or may be managed in gram equivalent [eq]. The unit of ion concentration to be removed is [g / m ³ ] when the removable amount is managed in grams [g], and [eq] when the removable amount is managed in gram equivalent [eq]. / M ³ ].

In the case where the ion exchange device 2 is a water softening device, the upper limit water flow rate is obtained by replacing “removable amount” with “removable hardness mass” and replacing “removable ion concentration” with “raw water” in the above formula (1a). It replaces with "hardness" and is calculated by the following formula (1b).
Upper limit water flow rate [m ³ ] = removable hardness mass [gCaCO ₃ , eq] ÷ raw water hardness [gCaCO ₃ / m ³ , eq / m ³ ] (1b)
When managing in grams (g) in the water softening device, for example, a unit in terms of calcium carbonate can be used. In this case, the unit of removable hardness mass is [gCaCO ₃ ], and the unit of raw water hardness is [GCaCO ₃ / m ³ ].

Further, when the ion exchange device 2 is a pure water production device, the upper limit water flow rate is obtained by replacing “removable amount” with “removable total ion mass” in the above equation (1a), and “removable ion concentration” ”Is replaced with“ total ion concentration of raw water ”and is calculated by the following equation (1c). Total ions are the sum of cations and anions.
Maximum water flow [m ³ ] = Removable total ion mass [g, eq] ÷ Raw water total ion concentration [g / m ³ , eq / m ³ ] (1c)
When the removable total ion mass is managed in grams (g), the total ion concentration can be substituted with the total dissolved solid content (hereinafter also referred to as “TDS”) of the raw water W1. The total dissolved solid content is determined by the following formula.
TDS [g / m ³ ] = Electric conductivity of raw water W1 [μS / cm] × conversion coefficient Here, the conversion coefficient is in the range of 0.45 to 1 depending on the water quality of the raw water W1. The conversion factor depends on the salinity concentration of the raw water W1, and increases as the salinity concentration increases. For example, in normal tap water and industrial water, the conversion factor is set to about 0.5.

Further, when the ion exchange device 2 is a pure water production device, non-ionic silica can also be included as a substance to be removed. The upper limit water flow rate in this case is calculated by the following equation (1c ′) by replacing “raw water total ion concentration” in the above equation (1c) with “raw water total ion concentration + raw water silica concentration”.
Maximum water flow rate [m ³ ] = removable total ion mass [eq] ÷ (raw water total ion concentration [eq / m ³ ] + raw water silica concentration [eq / m ³ ]) (1c ′)
When non-ionic silica is included as a substance to be removed, it is preferable to manage by gram equivalent [eq]. In this case, the unit of total ion mass that can be removed is [eq], and the total concentration of raw water ions and raw water silica Each unit of concentration is [eq / m ³ ].

In the case where the ion exchange device 2 is a nitrate nitrogen removal device, the upper limit water flow rate is calculated by replacing “removable amount” with “removable nitrate nitrogen mass” in the above formula (1a), The “ion concentration” is replaced with “raw water nitrate nitrogen concentration” (total concentration of nitrate ion and nitrite ion), and is calculated by the following equation (1d).
Upper limit water flow rate [m ³ ] = removable nitrate nitrogen mass [gNO ₃ , eq] ÷ raw water nitrate nitrogen concentration [gNO ₃ / m ³ , eq / m ³ ] (1d)
When managing in grams (g) in the nitrate nitrogen removal apparatus, for example, a unit in terms of nitrate ion (NO ₃ ⁻ ) can be used. In this case, the unit of the removable nitrate nitrogen mass is [gNO ₃ The raw water nitrate nitrogen concentration is [gNO ₃ / m ³ ].

<Calculation of upper limit water passage time in time regeneration>
When each of the plurality of ion exchange devices 2a to 2c performs time regeneration, the remote control unit 51 uses the specification information of each of the plurality of ion exchange devices 2a to 2c to be managed and the recent information of the analysis data. Based on the calculation formula of the following formula (2a), the upper limit water passage time in each of the plurality of ion exchange devices 2a to 2c is calculated, and the upper limit passage set in advance for each of the plurality of ion exchange devices 2a to 2c is calculated. The setting is changed by remote control so that the water flow time is updated to the calculated upper water flow time.
Upper limit water flow time [h] = removable amount [g, eq] ÷ removable ion concentration [g / m ³ , eq / m ³ ] ÷ maximum load flow rate [m ³ / h] (2a)

In the case where the ion exchange device 2 is a water softening device, the upper limit water passage time is set by replacing the “removable amount” with “removable hardness mass” and the “removable ion concentration” as “ It replaces with "raw water hardness" and is calculated by the following formula (2b).
Upper water flow time [h] = Removable hardness mass [gCaCO ₃ , eq] ÷ Raw water hardness [gCaCO ₃ / m ³ , eq / m ³ ] ÷ Maximum load flow rate [m ³ / h] (2b)

In the case where the ion exchange device 2 is a pure water production device, the upper limit water flow time is calculated by replacing “removable amount” with “removable total ion mass” in the above equation (2a), The “concentration” is replaced with “raw water total ion concentration” and is calculated by the following equation (2c). Total ions are the sum of cations and anions.
Maximum water flow time [h] = Removable total ion mass [g, eq] ÷ Raw water total ion concentration [g / m ³ , eq / m ³ ] ÷ Maximum load flow rate [m ³ / h] (2c)
As described above, when the removable total ion mass is managed in grams (g), the total ion concentration can be substituted with the TDS of the raw water W1.

Further, when the ion exchange device 2 is a pure water production device, non-ionic silica can also be included as a substance to be removed. The upper limit water flow time in this case is calculated by the following equation (2c ′) by replacing “raw water total ion concentration” in the above equation (2c) with “raw water total ion concentration + raw water silica concentration”.
Upper limit water flow time [h] = Removable total ion mass [eq] ÷ (Raw water total ion concentration [eq / m ³ ] + Raw water silica concentration [eq / m ³ ]) ÷ Maximum load flow rate [m ³ / h] ( 2c ')

In the case where the ion exchange device 2 is a nitrate nitrogen removal device, the upper limit water passage time is replaced by “removable nitrate nitrogen mass” in the above formula (2a) and “removable nitrate nitrogen mass”. The “target ion concentration” is replaced with “raw water nitrate nitrogen concentration” (total concentration of nitrate ion and nitrite ion), and is calculated by the following equation (2d).
Upper limit water flow time [h] = removable nitrate nitrogen mass [gNO ₃ , eq] ÷ raw water nitrate nitrogen concentration [gNO ₃ / m ³ , eq / m ³ ] ÷ maximum load flow rate [m ³ / h] (2d )

<Calculation of playback cycle days in cyclic playback>
When each of the plurality of ion exchange devices 2a to 2c executes periodic regeneration, the remote control unit 51 uses the specification information of each of the plurality of ion exchange devices 2a to 2c to be managed and the recent information of the analysis data. Based on the following formula (3a), the regeneration cycle days in each of the plurality of ion exchange devices 2a to 2c are calculated, and the preset regeneration cycle days for each of the plurality of ion exchange devices 2a to 2c. The setting is changed by remote control so that it is updated to the calculated number of playback cycle days.
Recycle cycle days [days] <removable amount [g, eq] ÷ removable ion concentration [g / m ³ , eq / m ³ ] ÷ maximum daily water usage [m ³ / day] (3a)

Here, for example, when a steam boiler (not shown) is installed at a demand point on the downstream side of the ion exchange device 2, the maximum daily water usage [m ³ / day] is calculated by the following equation. Desired.
Maximum daily water usage [m ³ / day] = Boiler evaporation [t / h] x Boiler operating time [h / day] + Boiler blow water volume [t / day]

In the case where the ion exchange device 2 is a water softening device, the regeneration cycle days are replaced with “removable hardness mass” in the above equation (3a), and “removable ion concentration” is replaced with “raw water”. It replaces with "hardness" and is calculated by the following formula (3b).
Recycle cycle days [days] <Removable hardness mass [gCaCO ₃ , eq] ÷ Raw water hardness [gCaCO ₃ / m ³ , eq / m ³ ] ÷ Maximum water usage per day [m ³ / day] (3b)

Further, when the ion exchange device 2 is a pure water production device, the regeneration cycle days are replaced with “removable total ion mass” in the above formula (3a), and “removable ion concentration” ”Is replaced by“ total ion concentration of raw water ”and is calculated by the following equation (3c). Total ions are the sum of cations and anions.
Regeneration cycle days [days] <Removable total ion mass [g, eq] / Raw water total ion concentration [g / m ³ , eq / m ³ ] ÷ Maximum water usage per day [m ³ / day] (3c)
As described above, when the removable total ion mass is managed in grams (g), the total ion concentration can be substituted with the TDS of the raw water W1.

Further, when the ion exchange device 2 is a pure water production device, non-ionic silica can also be included as a substance to be removed. The regeneration cycle days in this case are calculated by the following equation (3c ′) by replacing “raw water total ion concentration” in the above equation (3c) with “raw water total ion concentration + raw water silica concentration”.
Regeneration cycle days [days] <removable ion mass [eq] ÷ (raw water total ion concentration [eq / m ³ ] + raw water silica concentration [eq / m ³ ]) ÷ maximum daily water usage [m ³ / day] (3c ')

Further, when the ion exchange device 2 is a nitrate nitrogen removal device, the regeneration cycle days are replaced with “removable nitrate nitrogen mass” in the above formula (3a) and “removable nitrate nitrogen mass”. The “ion concentration” is replaced with “raw water nitrate nitrogen concentration” (total concentration of nitrate ion and nitrite ion), and is calculated by the following equation (3d).
Recycling cycle days [days] <removable nitrate nitrogen mass [gNO ₃ , eq] ÷ raw water nitrate nitrogen concentration [gNO ₃ / m ³ , eq / m ³ ] ÷ maximum daily water usage [m ³ / day] ] (3d)

<Additional control of regeneration in pure water production equipment>
In the case where the ion exchange device 2 is a pure water production device, the remote control unit 51 uses the silica concentration (not shown) of the raw water W1 detected by the silica concentration detection unit (not shown) provided in the water source 4 and the raw water lines L1a to L1c. When the concentration of ionic silica) exceeds a predetermined concentration threshold value, control is performed so as to perform warming regeneration of the anion exchange resin bed. In warm regeneration, in order to efficiently desorb nonionic silica adsorbed on the anion exchange resin and improve the regeneration efficiency, the heated regeneration solution is removed from the anion exchange resin bed (or anion exchange resin). Including mixed floors).

  In the case where the ion exchange device 2 is a pure water production device, the remote control unit 51 determines the ratio of nonionic silica contained in the raw water W1 (the amount of nonionic silica relative to the total amount of total ions and nonionic silica). If the ratio is higher than a predetermined threshold, the regeneration timing is changed so that the timing for regenerating the cation exchange resin bed and the anion exchange resin bed is advanced in each of the plurality of pure water devices to be managed. To do. When the ratio of the nonionic silica contained in the raw water W1 is higher than a predetermined threshold, the adsorption load of silica on the anion exchange resin may increase, and the ion exchange resin bed may break through early. Because there is. In addition, the ratio of the nonionic silica contained in the raw water W1 is the silica concentration of the raw water W1 detected by the silica concentration detectors (not shown) provided in the water source 4 and the raw water lines L1a to L1c, and the water source 4 and raw water. It can be obtained using the total ion concentration (TDS) of the raw water W1 detected by an electrical conductivity detector (not shown) provided in the lines L1a to L1c.

  Next, a first operation example of the remote management control system 1 of the ion exchange device will be described. FIG. 3 is a flowchart showing a processing procedure of the first operation example of the remote management control system 1 of the ion exchange device of the present embodiment. The process of the flowchart shown in FIG. 3 is repeatedly executed during operation of the remote management control system 1 of the ion exchange device. In the control according to the flowchart shown in FIG. 3, the types of the plurality of ion exchange devices 2 a to 2 c may be any of a water softening device, a pure water production device, a nitrate nitrogen removal device, and the like. Moreover, a part or all may be the same kind, and all may be a different kind. For example, the case where the ion exchange apparatuses 2a and 2c are water softening apparatuses and the ion exchange apparatus 2b is a pure water apparatus can be illustrated. Moreover, the several ion exchange apparatus 2a-2c is performing the water treatment process and the reproduction | regeneration process.

  In step S121 in the ion exchange device 2a shown in FIG. 3, the concentration of the removal target ion contained in the raw water W1 introduced into the ion exchange device 2a is detected by a concentration detection sensor (not shown). The detected removal target ion concentration data is transmitted to the remote control device 5 as analysis data.

  In step S111 in the remote control device 5, the analysis data of the concentration of ions to be removed from the raw water W1 detected in step S121 of the ion exchange device 2a is stored in the analysis data storage unit 52.

  In step S131 in the ion exchange device 2b, the concentration of the removal target ion contained in the raw water W1 introduced into the ion exchange device 2b is detected by a concentration detection sensor (not shown). The detected removal target ion concentration data is transmitted to the remote control device 5 as analysis data.

  In step S112 of the remote control device 5, the analysis data of the concentration of ions to be removed from the raw water W1 detected in step S131 of the ion exchange device 2b is stored in the analysis data storage unit 52.

  In step S141 in the ion exchange device 2c, the concentration of the removal target ion contained in the raw water W1 introduced into the ion exchange device 2c is detected by a concentration detection sensor (not shown). The detected removal target ion concentration data is transmitted to the remote control device 5 as analysis data.

  In step S113 in the remote control device 5, the analysis data of the ion concentration to be removed from the raw water W1 detected in step S141 of the ion exchange device 2c is stored in the analysis data storage unit 52.

  In step S <b> 114 in the remote control device 5, the remote control device 5 determines whether or not the temporal variation width of the removal target ion concentration stored in the analysis data storage unit 52 is outside a predetermined range. Here, the remote control device 5 uses the raw water in the plurality of ion exchange devices 2a to 2c in the analysis data of the removal target ion concentration stored in the analysis data storage unit 52, not in the order stored in the analysis data storage unit 52. Based on the recent information based on the time-series analysis data on the detection date of W1, the temporal variation width of the removal target ion concentration is calculated. For example, the latest two pieces of analysis data are used as the recent information. Specifically, as the two most recent analysis data, the analysis data of the sample water detected in step S141 in the ion exchange device 2c, the analysis data of the sample water detected in step S131 in the ion exchange device 2b, , The time-dependent fluctuation range of the removal target ion concentration is calculated. When it is determined by the remote control device 5 that the variation width with time is outside the predetermined range (YES), the process proceeds to step S115. On the other hand, when it is determined by the remote control device 5 that the variation width with time is not outside the predetermined range (NO), the process ends.

  In step S115 in the remote control device 5, the remote control device 5 calculates a regeneration timing at which a regeneration process is executed in each of the plurality of ion exchange devices 2a to 2c. Specifically, the remote control device 5 has a close relationship between the specification information including information on the removal amount of the removal target ions in each of the plurality of ion exchange devices 2a to 2c to be managed and the analysis data relating to the removal target ion concentration. Based on the time information, the regeneration timing for executing the regeneration process in each of the plurality of ion exchange devices 2a to 2c is calculated. For example, when the regeneration process of the flow rate regeneration is performed in the ion exchange device 2, the ion exchange device 2 is calculated according to the above formulas (1a), (1b), (1b ′), and (1c). Calculate the upper limit water flow rate. Further, when the regeneration process of time regeneration is performed in the ion exchange apparatus 2, the ion exchange apparatus 2 is calculated by the above formulas (2a), (2b), (2b ′), and (2c). Calculate the upper limit water passage time. Further, when the regeneration process of periodic regeneration is executed in the ion exchange apparatus 2, the ion exchange apparatus 2 is calculated according to the above formulas (3a), (3b), (3b ′), and (3c). Calculate the number of playback cycle days.

  In step S116 in the remote control device 5, the remote control device 5 performs setting change by remote control so that the preset regeneration timing becomes the calculated regeneration timing for each of the plurality of ion exchange devices 2a to 2c. . After the process of step S116, the process of the remote control device 5 ends (returns to step S111).

  In steps S122, S132, and S142 in the ion exchange devices 2a, 2b, and 2c, the remote control device 5 is configured such that the regeneration timings of the ion exchange devices 2a, 2b, and 2c are the regeneration timings that are set in advance. The setting is changed by remote control. After the processes of steps S122, S132, and S142, the processes of the ion exchange devices 2a, 2b, and 2c are completed (return to steps S121, S131, and S141).

  Next, a second operation example of the remote management control system 1 of the ion exchange device will be described. FIG. 4 is a flowchart showing a processing procedure of the second operation example of the remote management control system 1 of the ion exchange device of the present embodiment. The second operation example shown in FIG. 4 is obtained by detecting the concentration of ions to be removed contained in the raw water W1 with a concentration detection sensor (not shown) in the first operation example shown in FIG. On the other hand, it differs mainly in that it is obtained from the sample water of the collected raw water W1 as analysis data of the ion concentration to be removed at an analysis center (not shown). The second operation example is the same as the first operation example in other points.

  In step S221 in the ion exchange device 2a shown in FIG. 4, sample water of the raw water W1 introduced into the ion exchange device 2a is collected. The sample water of the collected raw water W1 is sent to an analysis center (not shown) and analyzed as analysis data of the concentration of ions to be removed at the time of collecting the raw water W1.

  In step S211 in the remote control device 5, the analysis data of the removal target ion concentration of the raw water W1 collected in step S221 of the ion exchange device 2a is stored in the analysis data storage unit 52.

  In step S231 in the ion exchange device 2b, sample water of the raw water W1 introduced into the ion exchange device 2b is collected. The sample water of the collected raw water W1 is sent to an analysis center (not shown) and analyzed as analysis data of the concentration of ions to be removed at the time of collecting the raw water W1.

  In step S212 of the remote control device 5, the analysis data of the removal target ion concentration of the raw water W1 collected in step S231 of the ion exchange device 2b is stored in the analysis data storage unit 52.

  In step S241 in the ion exchange device 2c, sample water of the raw water W1 introduced into the ion exchange device 2c is collected. The sample water of the collected raw water W1 is sent to an analysis center (not shown) and analyzed as analysis data of the concentration of ions to be removed at the time of collecting the raw water W1.

  In step S213 of the remote control device 5, the analysis data of the removal target ion concentration of the raw water W1 collected in step S241 of the ion exchange device 2c is stored in the analysis data storage unit 52.

  In step S214 in the remote control device 5, the remote control device 5 determines whether or not the temporal variation width of the removal target ion concentration stored in the analysis data storage unit 52 is outside a predetermined range. Here, the remote control device 5 uses the raw water in the plurality of ion exchange devices 2a to 2c in the analysis data of the removal target ion concentration stored in the analysis data storage unit 52, not in the order stored in the analysis data storage unit 52. Based on the recent information based on the time-series analysis data of the W1 sampling date, the temporal variation width of the removal target ion concentration is calculated. For example, the latest two pieces of analysis data are used as the recent information. Specifically, the analysis data of the sample water sampled in step S241 in the ion exchange device 2c and the analysis data of the sample water sampled in step S231 in the ion exchange device 2b are used as the two most recent analysis data. For the above, the time-dependent fluctuation range of the removal target ion concentration is calculated. When it is determined by the remote control device 5 that the variation width with time is out of the predetermined range (YES), the process proceeds to step S215. On the other hand, when it is determined by the remote control device 5 that the variation width with time is not outside the predetermined range (NO), the process ends.

  The operations of steps S215 and S216 in the remote control device 5, step S222 in the ion exchange device 2a, step S232 in the ion exchange device 2b, and step S242 in the ion exchange device 2c are the same as step S115 in the remote control device 5 of the first operation example. Since the operation is the same as S116, step S122 in the ion exchange device 2a, step S132 in the ion exchange device 2b, and step S142 in the ion exchange device 2c, the description thereof is omitted.

Next, the 3rd operation example of the remote management control system 1 of an ion exchange apparatus is demonstrated. FIG. 5 is a flowchart showing a processing procedure of the second operation example of the remote management control system 1 of the ion exchange device of the present embodiment. The process of the flowchart shown in FIG. 5 is repeatedly executed during operation of the remote management control system 1 of the ion exchange device. In the control by the flowchart shown in FIG. 5, the types of the plurality of ion exchange devices 2 a to 2 c are the same as the control by the flowchart shown in FIGS. 3 and 4, including the water softening device, the pure water production device, and the nitrate nitrogen removal device. Any of these may be used. Moreover, a part or all may be the same kind, and all may be a different kind. For example, the case where the ion exchange apparatuses 2a and 2c are water softening apparatuses and the ion exchange apparatus 2b is a pure water apparatus can be illustrated. Moreover, the several ion exchange apparatus 2a-2c is performing the water treatment process and the reproduction | regeneration process.
The third operation example in FIG. 5 differs from the first operation example and the second operation example in FIG. 3 and FIG. 4 in the analysis data acquisition method, acquisition time, and number of acquisitions.

  In step S321 in the ion exchange device 2a shown in FIG. 5, sample water of the raw water W1 introduced into the ion exchange device 2a is collected. The sample water of the collected raw water W1 is sent to an analysis center (not shown) and analyzed as analysis data of the concentration of ions to be removed at the time of collecting the raw water W1.

  In step S312 of the remote control device 5, the analysis data of the concentration of ions to be removed from the raw water W1 sampled in step S321 of the ion exchange device 2a is, for example, delayed several days from the sampling date of the sample water, and the analysis data storage unit 52.

  In step S322 in the ion exchange device 2a, the concentration of the removal target ion contained in the raw water W1 introduced into the ion exchange device 2a is detected by a concentration detection sensor (not shown). The detected removal target ion concentration data is transmitted to the remote control device 5 as analysis data.

  In step S311 in the remote control device 5, for example, analysis data of the removal target ion concentration of the raw water W1 detected in step S322 of the ion exchange device 2a at a time earlier than step S312 is stored in the analysis data storage unit 52. .

  In step S331 in the ion exchange device 2b, sample water of the raw water W1 introduced into the ion exchange device 2b is collected. The sample water of the collected raw water W1 is sent to an analysis center (not shown) and analyzed as analysis data of the concentration of ions to be removed at the time of collecting the raw water W1.

  In step S314 in the remote control device 5, the analysis data of the concentration of ions to be removed from the raw water W1 sampled in step S331 of the ion exchange device 2b is, for example, delayed several days from the sampling date of the sample water, and the analysis data storage unit 52.

  In step S332 in the ion exchange device 2b, the concentration of the removal target ion contained in the raw water W1 introduced into the ion exchange device 2b is detected by a concentration detection sensor (not shown). The detected removal target ion concentration data is transmitted to the remote control device 5 as analysis data.

  In step S313 in the remote control device 5, for example, analysis data of the removal target ion concentration of the raw water W1 detected in step S332 of the ion exchange device 2b at a time earlier than step S314 is stored in the analysis data storage unit 52. .

  In step S315 in the remote control device 5, as in step S114 in the operation example 1 shown in FIG. 3, the remote control device 5 has a temporal variation width of the removal target ion concentration stored in the analysis data storage unit 52 within a predetermined range. It is determined whether it is outside. Here, the remote control device 5 uses the raw water in the plurality of ion exchange devices 2a to 2c in the analysis data of the removal target ion concentration stored in the analysis data storage unit 52, not in the order stored in the analysis data storage unit 52. Based on the recent information based on the time-series analysis data of the W1 water sampling date or the detection date, the temporal variation width of the removal target ion concentration is calculated. For example, the latest two pieces of analysis data are used as the recent information. Specifically, as the two most recent analysis data, the analysis data of the detected value of the removal target ion concentration detected in step S332 in the ion exchange device 2b and the sample water acquired in step S331 in the ion exchange device 2b. With respect to the analysis data, the fluctuation width with time of the concentration of ions to be removed is calculated. When it is determined by the remote control device 5 that the temporal variation width is outside the predetermined range (YES), the process proceeds to step S316. On the other hand, when it is determined by the remote control device 5 that the variation width with time is not outside the predetermined range (NO), the process ends.

  In step S316 in the remote control device 5, as in step S115 in the operation example 1 shown in FIG. 3, the remote control device 5 calculates a regeneration timing for causing the plurality of ion exchange devices 2a to 2c to execute a regeneration process. Specifically, the remote control device 5 has a close relationship between the specification information including information on the removal amount of the removal target ions in each of the plurality of ion exchange devices 2a to 2c to be managed and the analysis data relating to the removal target ion concentration. Based on the time information, the regeneration timing for executing the regeneration process in each of the plurality of ion exchange devices 2a to 2c is calculated. For example, when the regeneration process of the flow rate regeneration is performed in the ion exchange device 2, the ion exchange device 2 is calculated according to the above formulas (1a), (1b), (1b ′), and (1c). Calculate the upper limit water flow rate. Further, when the regeneration process of time regeneration is performed in the ion exchange apparatus 2, the ion exchange apparatus 2 is calculated by the above formulas (2a), (2b), (2b ′), and (2c). Calculate the upper limit water passage time. Further, when the regeneration process of periodic regeneration is executed in the ion exchange apparatus 2, the ion exchange apparatus 2 is calculated according to the above formulas (3a), (3b), (3b ′), and (3c). Calculate the number of playback cycle days.

  In step S317 in remote control device 5, as in step S116 in operation example 1 shown in FIG. 3, remote control device 5 calculates a preset regeneration timing for each of the plurality of ion exchange devices 2a to 2c. The setting is changed by remote control so that the playback timing is reached. After the process of step S317, the process of the remote control device 5 ends (returns to step S311).

  In steps S323, S333, and S341 in the ion exchange devices 2a, 2b, and 2c, the remote control device 5 is configured such that the regeneration timing of the ion exchange devices 2a, 2b, and 2c is the regeneration timing that is set in advance. The setting is changed by remote control. After the processes of steps S323, S333, and S341, the processes of the ion exchange devices 2a, 2b, and 2c are finished (return to steps S321, S331, and S341).

  Here, in the ion exchange device 2c, the analysis data of the removal target ion concentration of the raw water W1 is not individually acquired at the time before step S341. However, the setting of the ion exchange device 2c is changed by remote control of the remote control device 5 so that the preset regeneration timing becomes the calculated regeneration timing. Here, in any of the plurality of ion exchange devices 2a to 2c, raw water W1 is introduced from the same water source. Therefore, also in the ion exchange apparatus 2c from which individual analysis data has not been acquired, the setting of the regeneration timing is changed by remote control. Thereby, several ion exchange apparatus 2a-2c is comprehensively manageable as a group of ion exchange apparatus.

According to the remote management control system 1 of the ion exchange device of the present embodiment, for example, the following effects are exhibited.
The remote management control system 1 of the ion exchange apparatus of this embodiment removes the ion to be removed contained in the raw water W1 by introducing the raw water W1 from the same water source 4 into the ion exchange resin beds 21a to 21c, thereby treating the treated water W2a. A plurality of ion exchange devices 2a to 2c for producing W2c, a remote control unit 51 for remotely controlling the plurality of ion exchange devices 2a to 2c by communication from a remote location, and analysis data of the acquired concentration of ions to be removed from the raw water W1 The remote control unit 51 includes a plurality of data to be managed when the temporal variation width of the ion concentration to be removed stored in the analysis data storage unit 52 is outside a predetermined range. Specification information including information on the removable amount of ions to be removed in each of the ion exchange devices 2a to 2c and recent information on analysis data relating to the concentration of ions to be removed Accordingly, the regeneration timing for executing the regeneration process in each of the plurality of ion exchange apparatuses 2a to 2c is calculated, and the preset regeneration timing is set to the calculated regeneration timing for each of the plurality of ion exchange apparatuses 2a to 2c. Change settings by remote control.

  Therefore, when the raw water quality of the same water source 4 fluctuates, the setting of the regeneration timing of the plurality of ion exchange devices 2a to 2c is changed by remote control, and the plurality of ion exchange devices 2a to 2c are changed to a group of ion exchanges. As a device, it can be managed comprehensively. As a result, in all of the plurality of ion exchange devices, regeneration at an optimal timing is always performed, and wasteful consumption of the regenerant and cleaning water is suppressed, and the quality of the treated water W2 is maintained. .

  Moreover, in the remote management control system 1 of the ion exchange apparatus of this embodiment, the ion exchange apparatus 2 is detected by the raw | natural water flowmeter 6 which can detect the flow volume of the water in the ion exchange resin bed 21, and the raw | natural water flowmeter 6. An integrated water flow rate calculation unit 222 for calculating an integrated water flow rate based on the flow rate of the water, and the integrated water flow rate calculated by the integrated water flow rate calculation unit 222 is set to a preset upper limit water flow rate. The remote control unit 51 can execute the regeneration process based on the specification information of each of the plurality of ion exchange devices 2a to 2c to be managed and the recent information of the analysis data. The upper limit water flow amount in each of the plurality of ion exchange devices 2a to 2c is calculated by a calculation formula of “water flow amount = removable amount ÷ removal target ion concentration], and is calculated for each of the plurality of ion exchange devices 2a to 2c. And setting change by remote control as upper communication water a preset is updated to the upper limit through water that the calculated.

  Therefore, when the flow rate regeneration is executed in the ion exchange device 2, the plurality of ion exchange devices 2a to 2c are updated so that the upper limit water flow amount becomes an optimum value according to the water quality fluctuation of the raw water W1. As a result, in all of the ion exchange apparatuses in which the flow rate regeneration is performed, regeneration at an optimal timing is always performed, and wasteful consumption of the regenerant and the washing water is suppressed, and the quality of the treated water W2 is reduced. Is maintained.

  Moreover, in the remote management control system 1 of the ion exchange apparatus of this embodiment, the ion exchange apparatus 2 is detected by the raw | natural water flowmeter 6 which can detect the distribution | circulation of the water in the ion exchange resin bed 21, and the raw | natural water flowmeter 6. An integrated water passage time calculating unit 223 that calculates an integrated water passage time based on the distribution state of the water, and an upper limit water passage in which the water passage time calculated by the cumulative water passage time calculation unit 223 is set in advance. When the time is reached, the regeneration process can be executed, and the remote control unit 51, based on the specification information of each of the plurality of ion exchange devices 2a to 2c to be managed and the recent information of the analysis data, By calculating the upper limit water flow time = removable amount ÷ removable target ion concentration ÷ maximum load flow rate, the upper limit water flow time in each of the plurality of ion exchange devices 2a to 2c is calculated, and the plurality of ion exchange devices. For each of 2a to 2c, the setting is changed by remote control so that the preset upper limit water passage time is updated to the calculated upper limit water passage time.

  Therefore, when time regeneration is performed in the ion exchange device 2, the plurality of ion exchange devices 2a to 2c are updated so that the upper limit water flow time becomes an optimum value according to the water quality fluctuation of the raw water W1. As a result, in all ion exchange apparatuses that perform time regeneration, regeneration at an optimal timing is always performed, and wasteful consumption of the regenerant and the washing water is suppressed, and the quality of the treated water W2 is reduced. Is maintained.

  Moreover, in the remote management control system 1 of the ion exchange apparatus of this embodiment, the ion exchange apparatus 2 has the timer part 224 which time-measures the elapsed days from the last reproduction | regeneration timing, and the progress time-measured by the timer part 224. When the number of days has reached a preset number of regeneration cycles, the regeneration process can be executed, and the remote control unit 51 includes the specification information and analysis data of each of the plurality of ion exchange devices 2a to 2c to be managed. Based on the recent information, the number of regeneration cycle days in each of the plurality of ion exchangers 2a to 2c is calculated using the formula [regeneration cycle days <removable amount ÷ removable target ion concentration ÷ maximum water usage per day]. For each of the plurality of ion exchange devices 2a to 2c, remote control is set so that the preset regeneration cycle days are updated to the calculated regeneration cycle days. Change the setting.

  Therefore, when periodic regeneration is performed in the ion exchange device 2, the plurality of ion exchange devices 2a to 2c are updated so that the number of regeneration cycle days becomes an optimum value according to the water quality fluctuation of the raw water W1. As a result, in all of the ion exchange apparatuses in which periodic regeneration is performed, regeneration at an optimal timing is always performed, wasteful consumption of the regenerant and washing water is suppressed, and the quality of the treated water W2 is also reduced. Is maintained.

As mentioned above, although preferred embodiment of this invention was described, this invention can be implemented with a various form, without being limited to embodiment mentioned above.
For example, in the above-described embodiment, three ion exchange devices have been described as a plurality of ion exchange devices. However, the present invention is not limited to this. Since the present invention is intended for remote control of ion exchange apparatus groups into which raw water from the same water source is introduced, it can be applied to ion exchange apparatus groups of tens to hundreds of scales. It has become.

  Moreover, in the above-mentioned embodiment, although the reproduction | regeneration timing of all the apparatuses of the some ion exchange apparatus 2a-2c was changed by remote control, it is not restrict | limited to this. The regeneration timing of some of the plurality of ion exchange devices 2a to 2c may be set and changed by remote control.

  In the above-described embodiment, an example in which the latest two pieces of analysis data are used as the recent information has been described. However, the present invention is not limited to this example. For example, the latest three pieces of analysis data are used. Also good.

  Further, in the above-described embodiment, in the first operation example, the number of detections of the raw water removal target ion concentration is once for each apparatus, and the analysis data is acquired and stored in the analysis data storage unit 52. The number of times was 3 times in total. In the second operation example, the sample water was sampled once for each apparatus, and the analysis data was acquired and stored in the analysis data storage unit 52 a total of three times. In the third operation example, the number of samplings of the sample water and the number of times of detection of the ion concentration to be removed of the raw water are one each in the ion exchange device 2a, and the number of samplings of the sample water in the ion exchange device 2b The number of detections of the raw water removal target ion concentration was one each, and the number of times the analysis data was acquired and stored in the analysis data storage unit 52 was four in total. However, the number of times the analysis data is stored in the analysis data storage unit 52 is not limited to this. In the present invention, when analysis data in a plurality of ion exchange apparatuses is obtained, the number of times of acquisition of analysis data is not limited, and analysis data in a plurality of ion exchange apparatuses is sequentially stored in the analysis data storage unit 52.

DESCRIPTION OF SYMBOLS 1 Remote management control system of ion exchange device 2, 2a-2c Ion exchange device 6, 6a-6c Raw water flowmeter (distribution detection part)
21, 21a to 21c Ion exchange resin bed 4 Water source 51 Remote control unit 52 Analysis data storage unit 222 Integrated water flow rate calculation unit (integrated water flow rate calculation means)
223 Integrated water passage time calculation unit (Integrated water passage time calculation means)
224 Timer part W1 Raw water W2, W2a to W2c Treated water

Claims (5)

A plurality of ion exchange devices that are installed in a region of the same water source, and remove treated ions contained in the raw water by introducing the raw water from the same water source into the ion exchange resin bed;
A remote control unit disposed at a remote location geographically separated from the plurality of ion exchange devices, connected to be able to communicate with the plurality of ion exchange devices, and remotely controlling the plurality of ion exchange devices by communication from a remote location; ,
An analysis data storage unit that stores analysis data of the ion concentration to be removed of raw water introduced into the obtained plurality of ion exchange devices,
The remote control unit can remove ions to be removed in each of the plurality of ion exchange devices to be managed when the temporal variation width of the concentration of ions to be removed stored in the analysis data storage unit is outside a predetermined range. Based on specification information including quantity information and analysis data information that is information of the analysis data related to the ion concentration to be removed, calculating a regeneration timing for executing a regeneration process in each of the plurality of ion exchange devices, For each of the plurality of ion exchange devices, the setting is changed by remote control so that the preset regeneration timing becomes the calculated regeneration timing,
The ion exchange device includes a flow rate detection unit capable of detecting a flow rate of water in the ion exchange resin bed, and an integrated flow rate calculation for calculating an integrated flow rate based on the flow rate of water detected by the flow rate detection unit. And when the integrated water flow calculated by the integrated water flow calculating means reaches a preset upper water flow, the regeneration process can be executed.
The remote control unit, based on the specification information of each of the plurality of ion exchange devices to be managed and the analysis data information of the analysis data , [upper water flow amount = removable amount ÷ removable ion concentration] The upper limit water flow rate in each of the plurality of ion exchange devices is calculated by the calculation formula, and a preset upper limit water flow rate is updated to the calculated upper limit water flow rate for each of the plurality of ion exchange devices. Change settings by remote control ,
Remote management control system of ion exchange device. A plurality of ion exchange devices that are installed in a region of the same water source, and remove treated ions contained in the raw water by introducing the raw water from the same water source into the ion exchange resin bed;
A remote control unit disposed at a remote location geographically separated from the plurality of ion exchange devices, connected to be able to communicate with the plurality of ion exchange devices, and remotely controlling the plurality of ion exchange devices by communication from a remote location; ,
An analysis data storage unit that stores analysis data of the ion concentration to be removed of raw water introduced into the obtained plurality of ion exchange devices,
The remote control unit can remove ions to be removed in each of the plurality of ion exchange devices to be managed when the temporal variation width of the concentration of ions to be removed stored in the analysis data storage unit is outside a predetermined range. Based on specification information including quantity information and analysis data information that is information of the analysis data related to the ion concentration to be removed, calculating a regeneration timing for executing a regeneration process in each of the plurality of ion exchange devices, For each of the plurality of ion exchange devices, the setting is changed by remote control so that the preset regeneration timing becomes the calculated regeneration timing,
The ion exchange device includes a flow detection unit capable of detecting the flow of water in the ion exchange resin bed, and an integrated flow time for calculating an integrated flow time based on a flow state of water detected by the flow detection unit. And when the integrated water flow time calculated by the integrated water flow time calculating means reaches a preset upper water flow time, the regeneration process can be executed.
The remote control unit, based on the specification information of each of the plurality of ion exchange devices to be managed and the analysis data information of the analysis data , [upper water flow time = removable amount / removable ion concentration The upper limit water flow time in each of the plurality of ion exchange devices is calculated according to the formula of “÷ maximum load flow rate], and a preset upper limit water flow time for each of the plurality of ion exchange devices is calculated. Change the setting by remote control so that it is updated in the water time .
Remote management control system of ion exchange device. A plurality of ion exchange devices that are installed in a region of the same water source, and remove treated ions contained in the raw water by introducing the raw water from the same water source into the ion exchange resin bed;
A remote control unit disposed at a remote location geographically separated from the plurality of ion exchange devices, connected to be able to communicate with the plurality of ion exchange devices, and remotely controlling the plurality of ion exchange devices by communication from a remote location; ,
An analysis data storage unit that stores analysis data of the ion concentration to be removed of raw water introduced into the obtained plurality of ion exchange devices,
The remote control unit can remove ions to be removed in each of the plurality of ion exchange devices to be managed when the temporal variation width of the concentration of ions to be removed stored in the analysis data storage unit is outside a predetermined range. Based on specification information including quantity information and analysis data information that is information of the analysis data related to the ion concentration to be removed, calculating a regeneration timing for executing a regeneration process in each of the plurality of ion exchange devices, For each of the plurality of ion exchange devices, the setting is changed by remote control so that the preset regeneration timing becomes the calculated regeneration timing,
The ion exchange device has a timer unit that counts the number of days elapsed from the previous regeneration timing, and the regeneration process is performed when the number of days elapsed by the timer unit reaches a preset regeneration cycle number of days. Is feasible,
The remote control unit, based on the specification information of each of the plurality of ion exchange devices to be managed and the analysis data information of the analysis data , [regeneration cycle days <removable amount ÷ removable ion concentration ÷ The maximum number of water used per day] is calculated according to the calculation formula of [the maximum amount of water used per day], and the regeneration cycle days set in advance for each of the plurality of ion exchange devices are the calculated regeneration cycles. Change the setting by remote control so that it is updated to the number of days .
Remote management control system of ion exchange device. The ion exchange device is a water softening device that removes hardness components as ions to be removed contained in the raw water to produce treated water by introducing the raw water from the same water source into the cation exchange resin bed.
The remote management control system of the ion exchange apparatus in any one of Claim 1 to 3 . The ion exchange device removes cations and anions as ions to be removed contained in the raw water by introducing raw water from the same water source into a double bed or mixed bed of cation exchange resin and anion exchange resin. Is a pure water production apparatus for producing treated water.
The remote management control system of the ion exchange apparatus in any one of Claim 1 to 3 .

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