Device for preventing thermal damage of EDI (Electronic Data Interchange) membrane stack caused by reverse connection of wiring

Abstract

The invention discloses a device for preventing thermal damage of an EDI (Electronic Data Interchange) membrane stack caused by reverse connection of wiring, and relates to the technical field of EDI membrane stacks. The signal processing unit is connected with the current direction sensor and the voltage polarity sensor, analog signals detected by the sensors are converted into digital signals, the signals are analyzed and processed, whether wiring is normal or not is judged, and if it is detected that the current direction is opposite to the preset direction or the voltage polarity is wrong, the wiring is abnormal. The signal processing unit transmits an abnormal signal to the control module; when a wiring abnormal signal is received, the control module immediately starts a corresponding protection program. The control module sends an alarm signal to the control alarm module to remind an operator of the problem of reverse connection of wiring; the problem of membrane stack thermal damage caused by reverse wiring is effectively solved, the equipment failure frequency is reduced, the maintenance cost is reduced, the operation stability and reliability of the ED I water treatment system are improved, and the continuity of related production processes is guaranteed.

Description

Technical Field

[0001] This invention relates to the field of EDI membrane stack technology, and specifically to a device for preventing thermal damage to EDI membrane stacks caused by reverse wiring. Background Technology

[0002] EDI stands for Electrodeionization, which uses an electric field to drive ion migration and separation through an exchange membrane to achieve deep removal of dissolved ions in water. An EDI module is a water treatment device that combines electrodialysis and ion exchange technologies and is mainly used to prepare ultrapure water.

[0003] When EDI membrane modules operate under high current and below rated flow for extended periods, the heat accumulated on the electrode side cannot be effectively dissipated. This causes the membranes and separators closest to the electrodes to heat up and deform first, increasing the EDI concentrate pressure difference, reducing water quality and quantity, and in severe cases, leading to carbonization and leakage. To address this, we propose a device to prevent thermal damage to EDI membrane stacks caused by reverse wiring. Summary of the Invention

[0004] The purpose of this invention is to provide a device for preventing thermal damage to EDI membrane stacks caused by reverse wiring, in order to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention specifically adopts the following technical solution:

[0006] A device for preventing thermal damage to an EDI membrane stack due to reverse wiring includes: a wiring detection module, which includes a current direction sensor, a voltage polarity sensor, and a signal processing unit; wherein the current direction sensor and the voltage polarity sensor are respectively disposed in the power supply line of the EDI membrane stack, and the signal processing unit establishes a signal connection with the current direction sensor and the voltage polarity sensor.

[0007] The control module is used to receive the wiring status signal transmitted by the wiring detection module;

[0008] An alarm module is signal-connected to the control module and includes an audible and visual alarm and a remote alarm unit, wherein the remote alarm unit is connected to a remote terminal device via a wireless communication network.

[0009] Furthermore, the current direction sensor employs the Hall effect principle to determine the current flow direction by detecting the direction of the magnetic field.

[0010] Furthermore, the voltage polarity sensor determines the voltage polarity by comparing the voltage levels at both ends of the line.

[0011] Furthermore, the signal processing unit converts the analog signal detected by the sensor into a digital signal, analyzes and processes the signal, and determines whether the wiring is normal.

[0012] Furthermore, the control module employs a high-performance microcontroller.

[0013] Furthermore, it also includes a fault diagnosis unit, integrated within the control module, which establishes a fault tree model based on historical anomaly data and performs pattern recognition and classification of wiring anomaly types.

[0014] Furthermore, it also includes a power management module, which is electrically connected to the wiring detection module, control module and alarm module, for providing a stable operating voltage.

[0015] The beneficial effects of the present invention are as follows:

[0016] 1. The current direction sensor of this invention adopts the Hall effect principle and determines the current flow direction by detecting the direction of the magnetic field; the voltage polarity sensor determines the voltage polarity by comparing the voltage at both ends of the line; the signal processing unit is connected to the current direction sensor and the voltage polarity sensor, converts the analog signal detected by the sensor into a digital signal, analyzes and processes the signal, and determines whether the wiring is normal. If the current direction is detected to be opposite to the preset direction or the voltage polarity is incorrect, the signal processing unit will transmit the abnormal signal to the control module.

[0017] 2. When the present invention receives a wiring abnormality signal, the control module immediately activates the corresponding protection program. The control module will send an alarm signal to the control alarm module to alert the operator that a wiring reverse connection problem has occurred.

[0018] 3. When the control module issues an alarm command, the audible and visual alarm will be activated immediately, emitting flashing lights and a piercing alarm sound to remind on-site operators to pay attention to reverse wiring issues. At the same time, the remote alarm unit will send the alarm information to the equipment management personnel's mobile phones, computers and other terminal devices via wireless network, ensuring that the management personnel can be informed of the abnormal equipment situation in a timely manner even when they are not on-site, so as to take quick countermeasures.

[0019] 4. This invention effectively solves the problem of membrane stack thermal damage caused by reverse wiring, reduces equipment failure frequency, lowers maintenance costs, improves the operational stability and reliability of the EDI water treatment system, and ensures the continuity of related production processes. Attached Figure Description

[0020] Figure 1 This is a block diagram of the present invention;

[0021] Figure 2 This is a block diagram of the wiring detection module in this invention;

[0022] Figure 3 This is a block diagram of the alarm module in this invention;

[0023] Figure 4 This is a flowchart of the process of the present invention.

[0024] Reference numerals: 100, Wiring detection module; 101, Current direction sensor; 102, Voltage polarity sensor; 103, Signal processing unit; 200, Control module; 300, Alarm module; 301, Audible and visual alarm; 302, Remote alarm unit; 400, Power management module. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0026] Please see Figure 1 - Figure 4 The present invention provides a device for preventing thermal damage to an EDI membrane stack due to reverse wiring, comprising: a wiring detection module 100, the wiring detection module 100 including a current direction sensor 101, a voltage polarity sensor 102 and a signal processing unit 103; wherein, the current direction sensor 101 and the voltage polarity sensor 102 are respectively disposed in the power supply line of the EDI membrane stack, and the signal processing unit 103 establishes a signal connection with the current direction sensor 101 and the voltage polarity sensor 102.

[0027] The current direction signal output by the current direction sensor 101 and the voltage polarity signal output by the voltage polarity sensor 102 are acquired in real time. The current direction signal and the voltage polarity signal are logically compared. When the current direction and voltage polarity are detected to be in opposite directions, a wiring abnormality status signal is generated and transmitted to the control module 200.

[0028] The control module 200 is used to receive the wiring status signal transmitted by the wiring detection module 100. When the control module 200 receives a wiring abnormality signal, it immediately activates the corresponding protection program and sends an alarm signal to the alarm module 300 to alert the operator that a wiring reverse connection problem has occurred.

[0029] The alarm module 300 is connected to the control module 200 by signal and includes an audible and visual alarm 301 and a remote alarm unit 302. The remote alarm unit 302 is connected to a remote terminal device through a wireless communication network.

[0030] When the control module 200 issues an alarm command, the audible and visual alarm 301 immediately activates, emitting flashing lights and a piercing alarm sound to remind on-site operators to pay attention to reverse wiring issues. At the same time, the remote alarm unit 302 sends the alarm information to the equipment management personnel's mobile phones, computers, and other terminal devices via a wireless network (such as 4G, 5G, or Wi-Fi), ensuring that management personnel can be informed of equipment abnormalities in a timely manner even when they are not on-site, so as to take quick countermeasures.

[0031] This device effectively solves the problem of membrane stack thermal damage caused by reverse wiring, reduces equipment failure frequency, lowers maintenance costs, improves the operational stability and reliability of the EDI water treatment system, and ensures the continuity of related production processes.

[0032] In this embodiment, preferably, the current direction sensor 101 adopts the Hall effect principle, determining the current flow direction by detecting the direction of the magnetic field. Specifically, the Hall effect refers to the generation of a Hall voltage difference perpendicular to the direction of the current and the magnetic field when a current-carrying conductor is placed in an external magnetic field. The sensor has a built-in Hall element. When current flows through the conductor being measured, a magnetic field is formed around the conductor. The Hall element senses the vector direction of the magnetic field and converts it into an electrical signal output, thereby achieving high-precision identification of the current flow direction. This type of sensor has advantages such as non-contact measurement, fast response speed, and strong anti-interference ability, and is widely used in power monitoring systems, motor control, and circuit protection to ensure the safety and efficiency of equipment operation.

[0033] In this embodiment, preferably, the voltage polarity sensor 102 determines the voltage polarity by comparing the voltage levels across the two ends of the line. Specifically, this sensor employs a differential voltage comparison principle, incorporates a high-precision comparison circuit, and monitors the voltage difference across the line in real time. When the detected voltage difference exceeds a preset threshold, it outputs a corresponding polarity signal based on the change in voltage level. This type of sensor offers advantages such as high measurement accuracy, fast response speed, and strong anti-interference capability. It is widely used in power management, circuit protection, and reverse connection prevention systems, enabling timely identification of wiring errors, preventing thermal damage to the EDI membrane stack caused by reverse polarity connection, and ensuring the safety and stability of equipment operation.

[0034] In this embodiment, preferably, the signal processing unit 103 converts the analog signal detected by the sensor into a digital signal and analyzes and processes the signal to determine whether the wiring is normal. The signal processing unit 103 receives analog signals from the voltage polarity sensor 102 and the Hall element sensor 101, converts the analog signals into digital signals through a built-in analog-to-digital converter (ADC), and performs real-time analysis and processing using a microprocessor, including algorithms such as comparing voltage difference thresholds and detecting current direction consistency, to accurately determine whether the wiring is normal. When reverse polarity or abnormal current is detected, the signal processing unit 103 immediately outputs a control signal to drive the relay to cut off the circuit and simultaneously triggers the audible and visual alarm 301, effectively preventing overheating damage to the EDI membrane stack caused by incorrect wiring, thereby improving the reliability and safety of the system. This unit integrates filtering and calibration functions, supports operation over a wide temperature range, and has advantages such as fast processing speed, strong anti-interference ability, and low power consumption.

[0035] In this embodiment, preferably, the control module 200 employs a high-performance microcontroller. The control module 200 uses a high-performance microcontroller (such as the ARM Cortex-M series), which integrates a high-speed data processing core. It receives digital signal analysis results from the signal processing unit 103 in real time, executes preset logic algorithms to comprehensively determine the wiring status, and implements multi-task scheduling through a built-in real-time operating system (RTOS). This includes executing relay drive instructions, managing audible and visual alarm outputs, and supporting adaptive calibration functions to ensure high-precision control under various ambient temperatures. Its low-power design and anti-interference capabilities further enhance the system's reliability and response speed, effectively preventing the risk of thermal damage to the EDI membrane stack caused by wiring errors.

[0036] In this embodiment, preferably, it further includes: a fault diagnosis unit, integrated within the control module 200, which establishes a fault tree model based on historical anomaly data to perform pattern recognition and classification of wiring anomaly types. The fault diagnosis unit collects anomaly samples from historical operating data to construct a multi-layer fault tree model. This model covers common wiring anomaly types such as short circuits, open circuits, reverse connections, and poor contact. It utilizes embedded pattern recognition algorithms (such as support vector machines or decision trees) to automatically classify and prioritize the features of real-time input signals. It can match a preset fault mode library in real time, quickly output diagnostic results to the control logic, and dynamically adjust thresholds using an adaptive calibration mechanism to ensure the accuracy of anomaly identification under various operating conditions, significantly reducing the false alarm rate. It also links the relay drive and alarm output module to promptly cut off erroneous wiring circuits, preventing overheating and damage to the EDI membrane stack.

[0037] In this embodiment, preferably, it further includes a power management module 400, which is electrically connected to the wiring detection module 100, the control module 200, and the alarm module 300, and is used to provide a stable operating voltage. The power management module 400 has a built-in high-efficiency AC-DC conversion circuit and multiple protection mechanisms (such as overvoltage, undervoltage, and short-circuit protection), which maintains a constant output voltage when the input power fluctuates or there is noise interference, ensuring that each functional module operates reliably in a wide input voltage range (such as AC150V~380V or DC100V~500V), and reduces system heat generation through low-power design, thereby improving overall energy efficiency and long-term stability, and preventing malfunctions or equipment damage caused by abnormal power supply.

[0038] Working principle and usage process of this invention:

[0039] The current direction sensor 101 uses the Hall effect principle to determine the current direction by detecting the direction of the magnetic field. The voltage polarity sensor 102 determines the voltage polarity by comparing the voltage levels across the circuit. The signal processing unit 103 is connected to the current direction sensor 101 and the voltage polarity sensor 102, converts the analog signals detected by the sensors into digital signals, analyzes and processes the signals, and determines whether the wiring is normal. If the current direction is detected to be opposite to the preset direction or the voltage polarity is incorrect, the signal processing unit 103 will transmit an abnormal signal to the control module 200. When the control module 200 receives the wiring abnormality signal, it will control... The control module 200 immediately activates the corresponding protection program and sends an alarm signal to the alarm module 300 to alert the operator that a wiring reverse connection problem has occurred. When the control module 200 issues an alarm command, the audible and visual alarm 301 immediately activates, emitting flashing lights and a piercing alarm sound to remind the on-site operator to pay attention to the wiring reverse connection problem. At the same time, the remote alarm unit 302 sends the alarm information to the equipment management personnel's mobile phones, computers, and other terminal devices via a wireless network (such as 4G, 5G, or Wi-Fi) to ensure that the management personnel can be informed of the abnormal equipment situation in a timely manner even when they are not on-site, so as to take quick countermeasures.

[0040] The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A device for preventing thermal damage to an EDI membrane stack due to reverse wiring, characterized in that, include: A wiring detection module (100) is provided, comprising a current direction sensor (101), a voltage polarity sensor (102), and a signal processing unit (103); wherein the current direction sensor (101) and the voltage polarity sensor (102) are respectively disposed in the power supply line of the EDI membrane stack, and the signal processing unit (103) establishes a signal connection with the current direction sensor (101) and the voltage polarity sensor (102); The control module (200) is used to receive the wiring status signal transmitted by the wiring detection module (100); An alarm module (300) is signal-connected to the control module (200) and includes an audible and visual alarm (301) and a remote alarm unit (302), which is connected to a remote terminal device via a wireless communication network.

2. The device for preventing thermal damage to the EDI membrane stack due to reverse wiring as described in claim 1, characterized in that, The current direction sensor (101) adopts the Hall effect principle and determines the current flow direction by detecting the direction of the magnetic field.

3. The device for preventing thermal damage to the EDI membrane stack due to reverse wiring as described in claim 1, characterized in that, The voltage polarity sensor (102) determines the voltage polarity by comparing the voltage levels at both ends of the line.

4. The device for preventing thermal damage to the EDI membrane stack due to reverse wiring as described in claim 1, characterized in that, The signal processing unit (103) converts the analog signal detected by the sensor into a digital signal, analyzes and processes the signal, and determines whether the wiring is normal.

5. The device for preventing thermal damage to the EDI membrane stack due to reverse wiring as described in claim 1, characterized in that, The control module (200) uses a high-performance microcontroller.

6. The device for preventing thermal damage to the EDI membrane stack due to reverse wiring as described in claim 1, characterized in that, Also includes: The fault diagnosis unit, integrated within the control module (200), establishes a fault tree model based on historical abnormal data and performs pattern recognition and classification of wiring abnormality types.

7. The device for preventing thermal damage to the EDI membrane stack due to reverse wiring as described in claim 1, characterized in that, Also includes: The power management module (400) is electrically connected to the wiring detection module (100), the control module (200) and the alarm module (300) to provide a stable operating voltage.

Images