A pure water EDI device control system

Abstract

The application discloses a pure water EDI device control system, and relates to the technical field of intelligent control of pure water preparation, which comprises a cation and anion migration area which is physically isolated; a matching resin working state; removal of cations and anions in respective channels; and data transmission to a control unit through an internal bus. The application effectively avoids the problem of ion migration path cross interference in the traditional mixed or upper and lower layer structure, significantly improves the uniformity of water flow and resin contact and desalination efficiency; not only enhances the self-adaptability and operation stability of the system, but also provides technical support for remote diagnosis and intelligent management, thereby improving the water production efficiency, water quality stability and intelligent operation and maintenance level of the pure water EDI device as a whole.

Description

Technical Field

[0001] This invention relates to the field of intelligent control technology for pure water preparation, and in particular to a control system for a pure water EDI device. Background Technology

[0002] With the increasing demands for high-purity water from industries such as semiconductors, biomedicine, and precision manufacturing, electrodeionization (EDI) technology has gradually become a core process for ultrapure water preparation due to its advantages such as no need for chemical regeneration, continuous water production, environmental friendliness, and high efficiency. In recent years, the application scale of EDI devices in industrial water treatment has continued to expand, with increasing system integration and intelligence levels, making the demand for operational stability, desalination efficiency, and ease of maintenance increasingly urgent.

[0003] However, existing EDI devices generally employ a mixed filling of anion and cation exchange resins or a vertically layered arrangement, resulting in uneven contact between water flow and resin, and interference between ion migration paths, which restricts further improvement in desalination efficiency. Furthermore, the integral resin filling structure makes individual replacement difficult after local failure, leading to cumbersome maintenance and a high risk of contamination. In addition, traditional control systems lack the ability to precisely sense and independently control the state of the resin on the left and right sides or in different zones, failing to achieve dynamic matching of key parameters such as flow rate and electric field, making it difficult to balance efficient desalination with long-term stable operation. Summary of the Invention

[0004] In view of the problems existing in the control system of the pure water EDI device, the present invention is proposed.

[0005] Therefore, the problem to be solved by the present invention is: To solve the above-mentioned technical problems, the present invention provides the following technical solution: Existing EDI devices suffer from uneven water flow contact, ion migration interference, and maintenance difficulties due to the mixing or vertical arrangement of anion and cation resins. Furthermore, they lack zone sensing and independent control capabilities, making it difficult to achieve efficient desalination and convenient maintenance.

[0006] In a first aspect, embodiments of the present invention provide a pure water EDI device control system, which includes a left and right partitioned resin arrangement module for independently arranging cation exchange resin and anion exchange resin in the EDI cavity in the horizontal direction to form physically isolated cation and anion migration zones. The zoned water flow guiding module is used to guide the incoming water to flow through the left and right resin zones respectively, and dynamically adjust the flow distribution of each left and right resin zone according to the control command to match the working status of the resin. An independent electric field driving module is used to apply DC electric fields to the left and right resin regions respectively, so as to complete the migration and removal of anions and cations in their respective channels; The resin condition monitoring and communication module is used to collect electrical characteristic parameters of the left and right resin regions and transmit the data to the control unit via an internal bus.

[0007] As a preferred embodiment of the pure water EDI device control system of the present invention, the left and right partition resin arrangement module includes a resin cavity partition structure sub-module, a directional filling guide sub-module, and a quick-installation buckle fixing sub-module. The zoned water flow guiding module includes a dual-inlet water flow sub-module, an electronically controlled proportional regulating valve sub-module, and a flow channel pressure equalization sub-module. The independent electric field driving module includes a regional electrode array submodule, a programmable power supply driving submodule, and a polarity switching control submodule. The resin condition monitoring and communication module includes a distributed sensing embedding submodule, an edge data preprocessing submodule, and an industrial bus communication submodule.

[0008] As a preferred embodiment of the pure water EDI device control system of the present invention, the resin cavity partition structure submodule is used to set a vertical central partition in the EDI cavity to divide the internal space into two sealed and non-communicating resin receiving areas, left and right. The directional filling guide submodule is used to inject the corresponding type of anion and cation exchange resin into the left and right resin areas respectively through a detachable guide pipe to complete the resin positioning. The quick-release buckle fixing submodule is used to modularly lock and quickly disassemble the side wall components of the left and right resin areas, supporting the maintenance of the left and right resin areas.

[0009] As a preferred embodiment of the pure water EDI device control system of the present invention, the dual-inlet water distribution submodule is used to distribute the raw water to the independent inlets of the left and right resin areas according to a preset ratio, thereby completing the physical separation of the water flow path. The electronically controlled proportional regulating valve submodule is used to receive control signals and dynamically adjust the valve opening of the branches in the left and right resin areas to match the difference in resin desalination load. The flow channel pressure equalization submodule is used to monitor and provide feedback on the pressure difference at the outlets of the left and right flow channels, and to assist the regulating valve in maintaining the hydraulic balance of the left and right resin areas.

[0010] As a preferred embodiment of the pure water EDI device control system of the present invention, the sub-regional electrode array sub-module is used to arrange independent anode and cathode electrode plates on the outer side of the left and right resin regions respectively to construct mutually decoupled electric field action domains. The programmable power drive submodule is used to output DC voltage and current parameters to independent anode and cathode electrode plates according to control commands; The polarity switching control submodule is used to reverse the independent anode and cathode electrode plates to suppress scaling on the electrode plates; The distributed sensing embedded submodule is used to integrate multi-dimensional electrical sensing nodes within the left and right resin regions to perceive the local resin state in real time. The edge data preprocessing submodule is used to preprocess the original electrical characteristic parameters to generate standardized state data packets; The industrial bus communication submodule is used to upload the pre-processed raw electrical characteristic parameters to the central control unit via the CAN bus, supporting diagnosis and remote interaction.

[0011] As a preferred embodiment of the pure water EDI device control system of the present invention, the control unit includes a local logic decision subunit, a regional state mapping subunit, and an internal bus interface subunit. The central control unit includes a global strategy scheduling subunit, a fault diagnosis and early warning subunit, and a remote communication management subunit; The local logic decision subunit is used to generate low-level execution instructions for the electronically controlled proportional control valve, programmable power supply drive and polarity switching control based on preset thresholds and electrical characteristic parameters. The regional state mapping subunit is used to map the multidimensional electrical sensing data of the left and right resin regions into the saturation index of the cation and cathode resins, respectively, to support zoned differentiated control. The internal bus interface subunit is used to perform low-latency bidirectional communication with each functional module via the CAN bus to realize command issuance and status feedback. The global strategy scheduling subunit is used to dynamically adjust the control strategy parameters of the control unit based on historical operating data and current operating conditions; The fault diagnosis and early warning subunit is used to integrate the status data of the left and right resin areas, identify abnormal patterns and generate graded alarm signals. The remote communication management subunit is used to establish a secure connection with the host computer or cloud platform via industrial Ethernet or 4G / 5G module, and supports remote parameter configuration, firmware upgrade and operation log upload.

[0012] As a preferred embodiment of the pure water EDI device control system of the present invention, the saturation index of the cation and anion resins includes the cation resin saturation index and the anion resin saturation index. The formula for calculating the saturation index of the cationic resin is as follows: in, Indicates the saturation index of cationic resin. This indicates the measured conductivity of the left resin region. This indicates the voltage drop in the left resin region. This represents the impedance weighting coefficient. This indicates the impedance value of the left resin region; The formula for calculating the saturation index of the anion exchange resin is as follows: in, This indicates the saturation index of anion exchange resin. This represents the conductivity weighting coefficient. Measured conductivity of the right resin region. This indicates the voltage drop in the right resin region. This indicates the impedance value of the right resin region; The control strategy parameters of the dynamic adjustment control unit include those based on the left and right branch flow distribution ratio. Based on dynamic optimization of the resin saturation index, the calculation formula is as follows: in, This indicates the flow distribution ratio between the left and right branches. This indicates the instantaneous flow rate in the left resin region. This indicates the instantaneous flow rate in the right resin region.

[0013] Secondly, embodiments of the present invention provide a control method for a pure water EDI device, comprising: independently arranging cation exchange resin and anion exchange resin in the EDI chamber along the horizontal direction to form physically isolated cation and anion migration regions; guiding the influent water to flow through the left and right resin regions respectively, dynamically adjusting the flow distribution of each left and right resin region according to control commands to match the working state of the resin; applying a DC electric field to the left and right resin regions respectively to complete the migration and removal of cations and anions in their respective channels; collecting the electrical characteristic parameters of the left and right resin regions, and transmitting the data to the control unit via an internal bus.

[0014] Thirdly, embodiments of the present invention provide a computer device, including a memory and a processor, wherein the memory stores a computer program, and the processor executes the computer program to implement any step of the above-described pure water EDI device control system.

[0015] Fourthly, embodiments of the present invention provide a computer-readable storage medium having a computer program stored thereon, wherein: when the computer program is executed by a processor, it implements any step of the above-described pure water EDI device control system.

[0016] The beneficial effects of this invention are as follows: By independently arranging cation exchange resin and anion exchange resin horizontally to form physically isolated cation and anion migration zones, this invention effectively avoids the problem of cross-interference of ion migration paths in traditional mixed or layered structures, significantly improving the uniformity of water flow and resin contact and desalination efficiency. Simultaneously, the modular, quick-installation structure facilitates resin zone replacement and maintenance, greatly reducing operational complexity and contamination risks. Based on this, the system achieves precise coordinated control of the left and right resin zones through zoned water flow guidance and independent electric field drive. Combined with real-time monitoring of resin status using multi-dimensional electrical characteristic parameters, and relying on a local and central two-level control architecture, the system dynamically optimizes flow distribution, electric field strength, and polarity switching strategies. This not only enhances the system's adaptability and operational stability but also provides technical support for remote diagnostics and intelligent management, thereby comprehensively improving the water production efficiency, water quality stability, and intelligent operation and maintenance level of the pure water EDI device. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Wherein: Figure 1 This is a schematic diagram of a pure water EDI device control system provided in an embodiment of the present invention.

[0018] Figure 2 A flowchart of a method for controlling a pure water EDI device provided in an embodiment of the present invention.

[0019] Figure 3 This is a schematic diagram of the structure of a medium in a pure water EDI device control system provided in an embodiment of the present invention.

[0020] Figure 4 This is a schematic diagram of the structure of a computing device for a pure water EDI device control system provided in an embodiment of the present invention. Detailed Implementation

[0021] To make the above-mentioned objects, features, and advantages of the present invention more apparent and understandable, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0022] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0023] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that is mutually exclusive with other embodiments.

[0024] This invention is described in detail with reference to the schematic diagrams. When detailing the embodiments of this invention, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not adhering to the usual scale. Furthermore, the schematic diagrams are merely examples and should not be construed as limiting the scope of protection of this invention. In actual fabrication, the three-dimensional spatial dimensions of length, width, and depth should be included.

[0025] Furthermore, in the description of this invention, it should be noted that the terms "upper," "lower," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are used solely for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. In addition, the terms "first," "second," or "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0026] Unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" in this invention should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; similarly, they can refer to mechanical connections, electrical connections, or direct connections, or indirect connections through an intermediate medium, or internal connections between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0027] Example Reference Figure 1 and Figure 2 This is the first embodiment of the present invention, which provides a pure water EDI device control system, including: S1: Left and right partitioned resin arrangement module, used to independently arrange cation exchange resin and anion exchange resin in the EDI cavity in the horizontal direction to form physically isolated cation and anion migration zones. S2: Zoned water flow guiding module, used to guide the incoming water to flow through the left and right resin areas respectively, and dynamically adjust the flow distribution of each left and right resin area according to the control command to match the working status of the resin. S3: Independent electric field drive module, used to apply DC electric fields to the left and right resin regions respectively, to complete the migration and removal of anions and cations in their respective channels; S4: Resin condition monitoring and communication module, used to collect electrical characteristic parameters of the left and right resin areas and transmit the data to the control unit via the internal bus.

[0028] The steps S1-S4 are further refined. The left and right partition resin arrangement module includes a resin cavity partition structure sub-module, a directional filling guide sub-module, and a quick-release buckle fixing sub-module. The zoned water flow guidance module includes a dual-inlet water diversion submodule, an electronically controlled proportional regulating valve submodule, and a flow channel pressure equalization submodule; The independent electric field drive module includes a regional electrode array submodule, a programmable power supply drive submodule, and a polarity switching control submodule; The resin condition monitoring communication module includes a distributed sensing embedding submodule, an edge data preprocessing submodule, and an industrial bus communication submodule.

[0029] Furthermore, the resin cavity partition structure submodule is used to set a vertical central partition in the EDI cavity, dividing the internal space into two sealed and non-communicating resin receiving areas, left and right. The directional filling guide submodule is used to inject the corresponding type of anion and cation exchange resin into the left and right resin areas respectively through a detachable guide tube to complete the resin positioning; The quick-release buckle fixing submodule is used to modularly lock and quickly disassemble the side wall components of the left and right resin areas, supporting the maintenance of the left and right resin areas.

[0030] The dual-inlet water distribution submodule is used to distribute raw water to the independent inlets of the left and right resin areas according to a preset ratio, thus completing the physical separation of the water flow path. The electronically controlled proportional regulating valve submodule is used to receive control signals and dynamically adjust the valve opening of the branches in the left and right resin areas to match the difference in resin desalination load. The flow channel pressure equalization submodule is used to monitor and provide feedback on the pressure difference at the outlets of the left and right flow channels, and to assist the regulating valve in maintaining the hydraulic balance of the left and right resin areas.

[0031] The regional electrode array submodule is used to arrange independent anode and cathode electrode sheets on the outer side of the left and right resin regions respectively, to construct mutually decoupled electric field domains. The programmable power drive submodule is used to output DC voltage and current parameters to independent anode and cathode electrode plates according to control commands; The polarity switching control submodule is used to reverse the independent anode and cathode electrode plates to suppress scaling on the electrode plates; The distributed sensing embedded submodule is used to integrate multi-dimensional electrical sensing nodes within the left and right resin regions to perceive the local resin state in real time. The edge data preprocessing submodule is used to preprocess the original electrical characteristic parameters and generate standardized state data packets; The industrial bus communication submodule is used to upload the pre-processed raw electrical characteristic parameters to the central control unit via the CAN bus, supporting diagnostics and remote interaction.

[0032] Furthermore, the pure water EDI device control system operates collaboratively through four core modules, forming a closed-loop control system of structural zoning, flow field regulation, electric field drive, and state feedback. First, the left and right partition resin arrangement module uses a vertical central partition to divide the EDI cavity into two sealed and independent resin receiving areas (typical width ratio of 1:1, single area volume of about 2.5L), and injects cation exchange resin (such as strong acid styrene-based) and anion exchange resin (such as strong base quaternary ammonium type) respectively through the directional filling guide submodule to achieve physical isolation.

[0033] The quick-release buckle fixing submodule adopts a stainless steel buckle + silicone sealing ring structure (locking force ≥300 N, disassembly time <2 minutes), supporting quick replacement of the resin area. On this basis, the partitioned water flow guiding module uses a dual-inlet water diversion submodule to divert the inlet water with a conductivity ≤20μS / cm to the left and right areas (initial distribution ratio 1:1). The electronically controlled proportional regulating valve submodule dynamically adjusts the valve opening according to the resin saturation (adjustment accuracy ±1%, response time ≤500 ms). The flow channel pressure balancing submodule monitors the pressure difference between the left and right outlets in real time (threshold set at ±5 kPa) to ensure hydraulic balance.

[0034] Meanwhile, the independent electric field drive module has titanium-coated ruthenium electrode sheets (each with an area of ​​150 cm²) spaced 80 mm apart on the outer sides of the left and right regions. 2 The programmable power supply driver submodule outputs a DC voltage of 0–300 V (current density controlled at 10–50 mA / cm²). 2 The polarity switching control submodule automatically reverses the electrode polarity for 30 seconds every 4 hours of operation, effectively inhibiting scaling.

[0035] Finally, the resin condition monitoring and communication module embeds multi-dimensional electrical sensor nodes (sampling frequency 1 Hz) in the left and right resin areas through the distributed sensing embedding submodule to collect parameters such as conductivity (range 0.1–100 μS / cm), impedance (100 Ω–10 kΩ), and voltage drop (10–200 V). The edge data preprocessing submodule performs moving average filtering and normalization on the raw data to generate standardized status data packets, which are then uploaded to the control unit via the industrial bus communication submodule using the CAN 2.0B protocol (baud rate 500kbps) to support subsequent saturation index calculation and intelligent control.

[0036] Furthermore, the control unit includes a local logic decision subunit, a region state mapping subunit, and an internal bus interface subunit; The central control unit includes a global strategy scheduling subunit, a fault diagnosis and early warning subunit, and a remote communication management subunit; The local logic decision subunit is used to generate low-level execution instructions for electronically controlled proportional control valves, programmable power supply drives, and polarity switching control based on preset thresholds and electrical characteristic parameters. The region state mapping subunit is used to map the multidimensional electrical sensing data of the left and right resin regions to the saturation index of the cation and cathode resins, respectively, to support zoned differentiated control. The internal bus interface subunit is used to communicate with various functional modules in a low-latency bidirectional manner via the CAN bus to realize command issuance and status feedback. The global strategy scheduling subunit is used to dynamically adjust the control strategy parameters of the control unit based on historical operating data and current operating conditions; The fault diagnosis and early warning subunit is used to integrate the status data of the left and right resin areas, identify abnormal patterns and generate graded alarm signals. The remote communication management subunit is used to establish a secure connection with the host computer or cloud platform via industrial Ethernet or 4G / 5G module, supporting remote parameter configuration, firmware upgrade and operation log upload.

[0037] The saturation index of cation and anion resins includes the saturation index of cation resins and the saturation index of anion resins. The formula for calculating the saturation index of cationic resin is: in, Indicates the saturation index of cationic resin. This indicates the measured conductivity of the left resin region. This indicates the voltage drop in the left resin region. This represents the impedance weighting coefficient. This indicates the impedance value of the left resin region; The formula for calculating the saturation index of anion exchange resin is: in, This indicates the saturation index of anion exchange resin. This represents the conductivity weighting coefficient. Measured conductivity of the right resin region. This indicates the voltage drop in the right resin region. This indicates the impedance value of the right resin region; The control strategy parameters for dynamically adjusting the control unit include those based on the flow distribution ratio of the left and right branches. Based on dynamic optimization of the resin saturation index, the calculation formula is as follows: in, This indicates the flow distribution ratio between the left and right branches. This indicates the instantaneous flow rate in the left resin region. This indicates the instantaneous flow rate in the right resin region.

[0038] In a preferred embodiment, a method for controlling a pure water EDI device includes: independently arranging cation exchange resin and anion exchange resin horizontally in the EDI chamber to form physically isolated cation and anion migration zones; guiding the incoming water to flow through the left and right resin zones respectively; dynamically adjusting the flow distribution of each left and right resin zone according to control commands to match the resin working state; applying a DC electric field to the left and right resin zones respectively to complete the migration and removal of cations and anions in their respective channels; collecting the electrical characteristic parameters of the left and right resin zones and transmitting the data to the control unit via an internal bus.

[0039] The above-mentioned unit modules can be embedded in the processor of the computer device in hardware form or independent of it, or they can be stored in the memory of the computer device in software form, so that the processor can call and execute the corresponding operations of the above modules.

[0040] In one embodiment, a computer device is provided, which may be a terminal. The computer device includes a processor, memory, a communication interface, a display screen, and an input device connected via a system bus. The processor of the computer device provides computing and control capabilities. The memory of the computer device includes a non-volatile storage medium and internal memory. The non-volatile storage medium stores an operating system and computer programs. The internal memory provides an environment for the operation of the operating system and computer programs stored in the non-volatile storage medium. The communication interface of the computer device is used for wired or wireless communication with external terminals. Wireless communication can be achieved through Wi-Fi, carrier networks, NFC (Near Field Communication), or other technologies. The display screen of the computer device may be an LCD screen or an e-ink display screen. The input device of the computer device may be a touch layer covering the display screen, or buttons, a trackball, or a touchpad located on the casing of the computer device, or an external keyboard, touchpad, or mouse, etc.

[0041] In summary, this invention, by independently arranging cation exchange resin and anion exchange resin horizontally to form physically isolated cation and anion migration zones, effectively avoids the problem of cross-interference in ion migration paths found in traditional mixed or layered structures, significantly improving the uniformity of water flow and resin contact and desalination efficiency. Simultaneously, the modular, quick-installation structure facilitates resin zone replacement and maintenance, greatly reducing operational complexity and contamination risks. Furthermore, the system achieves precise coordinated control of the left and right resin zones through zoned water flow guidance and independent electric field drive. Combined with real-time monitoring of resin status using multi-dimensional electrical characteristic parameters, and relying on a local and central two-level control architecture to dynamically optimize flow distribution, electric field strength, and polarity switching strategies, this not only enhances the system's adaptability and operational stability but also provides technical support for remote diagnostics and intelligent management, thereby comprehensively improving the water production efficiency, water quality stability, and intelligent operation and maintenance level of the pure water EDI device.

[0042] Reference Figure 3 and Figure 4 After introducing the method and system of exemplary embodiments of the present invention, the following references are made. Figure 3 A computer-readable storage medium according to exemplary embodiments of the present invention will be described, please refer to... Figure 3The computer-readable storage medium shown is an optical disc 30, on which a computer program (i.e., a program product) is stored. When the computer program is run by a processor, it implements the steps described in the above-described method implementation. For example, the left and right partitioned resin arrangement module is used to independently arrange cation exchange resin and anion exchange resin horizontally in the EDI cavity to form physically isolated cation and anion migration zones; the partitioned water flow guiding module is used to guide the influent to flow through the left and right resin zones respectively, and dynamically adjust the flow distribution of each left and right resin zone according to control commands to match the resin working state; the independent electric field driving module is used to apply DC electric fields to the left and right resin zones respectively to complete the migration and removal of cations and anions in their respective channels; the resin state monitoring and communication module is used to collect the electrical characteristic parameters of the left and right resin zones and transmit the data to the control unit through an internal bus. The specific implementation methods of each step will not be repeated here.

[0043] It should be noted that examples of computer-readable storage media may also include, but are not limited to, phase-change memory (PRAM), static random access memory (SRAM), dynamic random access memory (DRAM), other types of random access memory (RAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), flash memory or other optical and magnetic storage media, which will not be elaborated here.

[0044] After introducing the methods and media of exemplary embodiments of the present invention, the following references are made. Figure 4 A computational device for adaptive recovery of low-voltage power grid self-healing control according to an exemplary embodiment of the present invention.

[0045] Figure 4 A block diagram is shown of an exemplary computing device 40 suitable for implementing embodiments of the present invention. The computing device 40 may be a computer system or a server. Figure 4 The computing device 40 shown is merely an example and should not impose any limitation on the functionality and scope of use of the embodiments of the present invention.

[0046] like Figure 4 As shown, the components of computing device 40 may include, but are not limited to: one or more processors or processing units 401, system memory 402, and bus 403 connecting different system components (including system memory 402 and processing unit 401).

[0047] The computing device 40 typically includes a variety of computer system readable media. These media can be any available media that can be accessed by the computing device 40, including volatile and non-volatile media, and removable and non-removable media.

[0048] System memory 402 may include computer system readable media in the form of volatile memory, such as random access memory (RAM) 4021 and / or cache memory 4022. Computing device 40 may further include other removable / non-removable, volatile / non-volatile computer system storage media. By way of example only, ROM 4023 may be used to read and write non-removable, non-volatile magnetic media (…). Figure 4 (Not shown in the image, usually referred to as "hard drive"). Although not shown in... Figure 4 The diagram illustrates that disk drives for reading and writing to removable non-volatile disks (e.g., "floppy disks") and optical disc drives for reading and writing to removable non-volatile optical discs (e.g., CD-ROMs, DVD-ROMs, or other optical media) can be provided. In these cases, each drive can be connected to bus 403 via one or more data media interfaces. System memory 402 may include at least one program product having a set (e.g., at least one) of program modules configured to perform the functions of the embodiments of the present invention.

[0049] A program / utility 4025 having a set (at least one) of program modules 4024 may be stored, for example, in system memory 402, and such program modules 4024 include, but are not limited to, an operating system, one or more application programs, other program modules, and program data, each or some combination of these examples may include an implementation of a network environment. Program modules 4024 typically perform the functions and / or methods described in the embodiments of the present invention.

[0050] The computing device 40 can also communicate with one or more external devices 404 (such as a keyboard, pointing device, display, etc.). This communication can be performed via the input / output (I / O) interface 405. Furthermore, the computing device 40 can also communicate with one or more networks (e.g., local area networks (LANs), wide area networks (WANs), and / or public networks, such as the Internet) via a network adapter 406. Figure 4 As shown, network adapter 406 communicates with other modules of computing device 40 (such as processing unit 401) via bus 403. It should be understood that, although... Figure 4 As not shown, it can be used in conjunction with computing device 40 with other hardware and / or software modules.

[0051] The processing unit 401 executes various functional applications and data processing by running programs stored in the system memory 402. For example, the left and right partitioned resin arrangement module is used to independently arrange cation exchange resin and anion exchange resin in the EDI cavity in the horizontal direction to form physically isolated cation and anion migration zones; the partitioned water flow guiding module is used to guide the influent to flow through the left and right resin zones respectively, and dynamically adjust the flow distribution of each left and right resin zone according to the control command to match the resin working state; the independent electric field driving module is used to apply DC electric fields to the left and right resin zones respectively to complete the migration and removal of cations and anions in their respective channels; and the resin status monitoring and communication module is used to collect the electrical characteristic parameters of the left and right resin zones and transmit the data to the control unit through the internal bus.

[0052] Those skilled in the art will understand that, for the sake of convenience and brevity, the specific working processes of the systems, devices, and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be repeated here.

[0053] In the several embodiments provided by this invention, it should be understood that the disclosed systems, apparatuses, and methods can be implemented in other ways. The apparatus embodiments described above are merely illustrative. For example, the division of units is only a logical functional division, and in actual implementation, there may be other division methods. Furthermore, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Additionally, the coupling or direct coupling or communication connection shown or discussed may be through some communication interface; the indirect coupling or communication connection between apparatuses or units may be electrical, mechanical, or other forms.

[0054] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0055] In addition, the functional units in the various embodiments of the present invention can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit.

[0056] If the functionality is implemented as a software functional unit and sold or used as an independent product, it can be stored in a processor-executable, non-volatile, computer-readable storage medium. Based on this understanding, the technical solution of this invention, or the part that contributes to the prior art, or a portion of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods of the various embodiments of this invention. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

[0057] Finally, it should be noted that the above embodiments are merely specific implementations of the present invention, used to illustrate the technical solutions of the present invention, and not to limit it. The scope of protection of the present invention is not limited thereto. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that any person skilled in the art can still modify or easily conceive of changes to the technical solutions described in the foregoing embodiments within the technical scope disclosed in the present invention, or make equivalent substitutions for some of the technical features; and these modifications, changes, or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention, and should all be covered within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

[0058] Furthermore, although the operations of the method of the present invention are described in a specific order in the accompanying drawings, this does not require or imply that these operations must be performed in that specific order, or that all the operations shown must be performed to achieve the desired result. Additionally or alternatively, certain steps may be omitted, multiple steps may be combined into one step, and / or one step may be broken down into multiple steps.

[0059] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A control system for a pure water EDI device, characterized in that: include, The left and right partitioned resin arrangement module is used to independently arrange cation exchange resin and anion exchange resin in the EDI cavity in the horizontal direction to form physically isolated cation and anion migration zones. The zoned water flow guiding module is used to guide the incoming water to flow through the left and right resin zones respectively, and dynamically adjust the flow distribution of each left and right resin zone according to the control command to match the working status of the resin. An independent electric field driving module is used to apply DC electric fields to the left and right resin regions respectively, so as to complete the migration and removal of anions and cations in their respective channels; The resin condition monitoring and communication module is used to collect electrical characteristic parameters of the left and right resin regions and transmit the data to the control unit via an internal bus.

2. The pure water EDI device control system as described in claim 1, characterized in that: The left and right partition resin arrangement module includes a resin cavity partition structure sub-module, a directional filling guide sub-module, and a quick-installation buckle fixing sub-module. The zoned water flow guiding module includes a dual-inlet water flow sub-module, an electronically controlled proportional regulating valve sub-module, and a flow channel pressure equalization sub-module. The independent electric field driving module includes a regional electrode array submodule, a programmable power supply driving submodule, and a polarity switching control submodule. The resin condition monitoring and communication module includes a distributed sensing embedding submodule, an edge data preprocessing submodule, and an industrial bus communication submodule.

3. The pure water EDI device control system as described in claim 2, characterized in that: The resin cavity partition structure submodule is used to set a vertical central partition in the EDI cavity, dividing the internal space into two sealed and non-communicating resin receiving areas, left and right. The directional filling guide submodule is used to inject the corresponding type of anion and cation exchange resin into the left and right resin areas respectively through a detachable guide pipe to complete the resin positioning. The quick-release buckle fixing submodule is used to modularly lock and quickly disassemble the side wall components of the left and right resin areas, supporting the maintenance of the left and right resin areas.

4. The pure water EDI device control system as described in claim 3, characterized in that: The dual-inlet water diversion submodule is used to distribute raw water to the independent inlets of the left and right resin areas according to a preset ratio, thereby completing the physical separation of the water flow path. The electronically controlled proportional regulating valve submodule is used to receive control signals and dynamically adjust the valve opening of the branches in the left and right resin areas to match the difference in resin desalination load. The flow channel pressure equalization submodule is used to monitor and provide feedback on the pressure difference at the outlets of the left and right flow channels, and to assist the regulating valve in maintaining the hydraulic balance of the left and right resin areas.

5. The pure water EDI device control system as described in claim 4, characterized in that: The sub-module of the regional electrode array is used to arrange independent anode and cathode electrode sheets on the outside of the left and right resin regions respectively, to construct mutually decoupled electric field domains. The programmable power drive submodule is used to output DC voltage and current parameters to independent anode and cathode electrode plates according to control commands; The polarity switching control submodule is used to reverse the independent anode and cathode electrode plates to suppress scaling on the electrode plates; The distributed sensing embedded submodule is used to integrate multi-dimensional electrical sensing nodes within the left and right resin regions to perceive the local resin state in real time. The edge data preprocessing submodule is used to preprocess the original electrical characteristic parameters to generate standardized state data packets; The industrial bus communication submodule is used to upload the pre-processed raw electrical characteristic parameters to the central control unit via the CAN bus, supporting diagnosis and remote interaction.

6. The pure water EDI device control system as described in claim 5, characterized in that: The control unit includes a local logic decision subunit, a regional state mapping subunit, and an internal bus interface subunit; The central control unit includes a global strategy scheduling subunit, a fault diagnosis and early warning subunit, and a remote communication management subunit; The local logic decision subunit is used to generate low-level execution instructions for the electronically controlled proportional control valve, programmable power supply drive and polarity switching control based on preset thresholds and electrical characteristic parameters. The regional state mapping subunit is used to map the multidimensional electrical sensing data of the left and right resin regions into the saturation index of the cation and cathode resins, respectively, to support zoned differentiated control. The internal bus interface subunit is used to perform low-latency bidirectional communication with each functional module via the CAN bus to realize command issuance and status feedback. The global strategy scheduling subunit is used to dynamically adjust the control strategy parameters of the control unit based on historical operating data and current operating conditions; The fault diagnosis and early warning subunit is used to integrate the status data of the left and right resin areas, identify abnormal patterns and generate graded alarm signals. The remote communication management subunit is used to establish a secure connection with the host computer or cloud platform via industrial Ethernet or 4G / 5G module, and supports remote parameter configuration, firmware upgrade and operation log upload.

7. The pure water EDI device control system as described in claim 6, characterized in that: The saturation index of the cation and anion resins includes the saturation index of the cation resin and the saturation index of the anion resin. The formula for calculating the saturation index of the cationic resin is as follows: in, Indicates the saturation index of cationic resin. This indicates the measured conductivity of the left resin region. This indicates the voltage drop in the left resin region. This represents the impedance weighting coefficient. This indicates the impedance value of the left resin region; The formula for calculating the saturation index of the anion exchange resin is as follows: in, This indicates the saturation index of anion exchange resin. This represents the conductivity weighting coefficient. Measured conductivity of the right resin region. This indicates the voltage drop in the right resin region. This indicates the impedance value of the right resin region; The control strategy parameters of the dynamic adjustment control unit include those based on the left and right branch flow distribution ratio. Based on dynamic optimization of the resin saturation index, the calculation formula is as follows: in, This indicates the flow distribution ratio between the left and right branches. This indicates the instantaneous flow rate in the left resin region. This indicates the instantaneous flow rate in the right resin region.

8. A control method for a pure water EDI device, based on the pure water EDI device control system according to any one of claims 1 to 7, characterized in that: include, The cation exchange resin and anion exchange resin are arranged independently in the EDI cavity along the horizontal direction to form physically isolated cation and anion migration zones. The inlet water is guided to flow through the left and right resin zones respectively, and the flow distribution of each left and right resin zone is dynamically adjusted according to the control command to match the working status of the resin. A DC electric field is applied to the left and right resin regions respectively to complete the migration and removal of anions and cations in their respective channels; The electrical characteristic parameters of the left and right resin regions are collected and transmitted to the control unit via the internal bus.

9. A computer device comprising a memory and a processor, wherein the memory stores a computer program, characterized in that: When the processor executes the computer program, it implements the steps of the pure water EDI device control system according to any one of claims 1 to 7.

10. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by the processor, it implements the steps of the pure water EDI device control system according to any one of claims 1 to 7.

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