Electrochemical carbon dioxide conversion system

Abstract

The invention discloses an electrochemical carbon dioxide conversion system, which relates to the technical field of electrochemistry, and is characterized in that each system of a separable modular unit is configured; reaction parameters are set through the man-machine interaction system; operation parameters are collected in real time through a sensor, and when the collected operation parameters exceed an alarm threshold value, an alarm is triggered on the man-machine interaction system. The whole system of the electrochemical carbon dioxide conversion equipment is divided into modular units which are definite in function and relatively independent, all the systems are connected through standardized interfaces, and then high integration and flexible configuration of the electrochemical carbon dioxide conversion equipment can be achieved; by arranging the man-machine interaction system specially aiming at electrochemical reaction characteristics, full-process intelligent management is realized, and a multi-level safety protection mechanism including hydrogen detection, parameter over-limit alarm, emergency power-off and shutdown and the like is established, so that the safe operation of the system can be effectively ensured.

Description

Technical Field

[0001] This invention relates to the field of electrochemical technology, and more specifically, to an electrochemical carbon dioxide conversion system. Background Technology

[0002] With the advancement of the global carbon neutrality goal, electrochemical carbon dioxide reduction technology has attracted widespread attention because it can convert carbon dioxide into high-value-added chemicals under mild conditions. This technology uses electrical energy to drive the reduction reaction of carbon dioxide on the surface of a catalyst to produce products such as formic acid, methanol, and ethylene.

[0003] Existing electrochemical carbon dioxide reduction conversion equipment is mostly physically integrated, with complex connections between components, resulting in large equipment size. This makes it difficult to achieve the flexible deployment required for industrial applications. Furthermore, the lack of a reasonable temperature control system can easily lead to heat accumulation during operation, causing a decrease in reaction efficiency. In addition, the human-machine interface of existing carbon dioxide reduction conversion equipment is very simple, usually using simple instrument displays and button operations, which cannot intuitively display the system status and intelligent process management. At the same time, the lack of effective safety monitoring and early warning mechanisms leads to certain safety hazards during equipment operation.

[0004] Therefore, a new solution is needed to address this problem. Summary of the Invention

[0005] The purpose of this invention is to provide an electrochemical carbon dioxide conversion system in order to solve the above-mentioned problems.

[0006] The above-mentioned technical objective of the present invention is achieved through the following technical solution: an electrochemical carbon dioxide conversion system, the electrochemical carbon dioxide conversion system comprising: a reaction system configured as a separable modular unit, a gas supply system, a gas-liquid mixing system, a liquid supply system, an electrical system, a DC power supply, operating status indicator lights, and a human-machine interaction system;

[0007] The human-computer interaction system enables multi-level user authentication, with users having different parameter settings and data access permissions. The system also allows for the setting and feedback of reaction parameters, including electrolyte flow rate, gas flow rate, electrolyte temperature, electrolyte pressure, DC power supply parameters, and sensor alarm thresholds.

[0008] Carbon dioxide and electrolyte are supplied to the gas-liquid mixing system via a gas supply system and a liquid supply system, respectively. The gas-liquid mixing system fully mixes the carbon dioxide and electrolyte to form a gas-liquid two-phase mixture, which is then supplied to the reaction system.

[0009] The preset DC power parameters are applied to the reaction system through the DC power supply to drive the electrochemical carbon dioxide reduction reaction.

[0010] Operating parameters are collected in real time by sensors installed in the reaction system, gas-liquid mixing system, liquid supply system, gas supply system, and DC power supply. The collected operating parameters are sent to the human-machine interaction system for display, storage, and analysis by the PLC controller in the electrical system. When the collected operating parameters exceed the alarm threshold, an alarm is triggered on the human-machine interaction system.

[0011] The present invention is further configured as follows: a reaction system, a gas supply system, a gas-liquid mixing system, a liquid supply system, an electrical system, a DC power supply, and operating indicator lights, all configured as separable modular units, including:

[0012] The reaction system includes an electrochemical reactor, a first blower located at the top of the reaction system, and a first hydrogen monitor;

[0013] The gas supply system includes a carbon dioxide storage tank and a first gas flow meter, a nitrogen storage tank and a second gas flow meter;

[0014] A gas-liquid mixing system, including a micro / nano bubble generator, is used to promote the dissolution of carbon dioxide in an electrolyte;

[0015] The liquid supply system includes an anode electrolyte tank, a second fan and a second hydrogen monitor installed on top of the anode electrolyte tank, a cathode electrolyte tank, a third fan and a third hydrogen monitor installed on top of the cathode electrolyte tank, a condenser, an overflow device, a drain device, a liquid flow meter, a level gauge, a sampling device, and a peristaltic pump. The condenser is used to control the electrolyte temperature, the overflow device is used to prevent electrolyte overflow, the drain device is used to ensure that the electrolyte is completely drained, the level gauge is used to observe the electrolyte level in the electrolyte tank in real time, and the sampling device can achieve real-time sampling.

[0016] Electrical system, including PLC controller and signal conversion module;

[0017] DC power supplies, including programmable DC power supplies;

[0018] The status indicator light has a three-color switching function: red indicates that a fault has occurred; yellow indicates that it is in standby mode; and green indicates that it is in normal working mode.

[0019] Each system adopts a partitioned layout and is connected through standardized interfaces.

[0020] The present invention is further configured such that the human-computer interaction system includes:

[0021] The user login module is used to implement multi-level permission authentication, including three permission levels: administrator, technician and experimenter. Users with different permission levels have different parameter modification ranges, data access permissions and system operation permissions.

[0022] The parameter setting module is used to set the peristaltic pump speed, peristaltic pump rotation direction, and control the forward delivery or reverse return of electrolyte to the electrolyte tank. The direction icon pointing upward indicates that the peristaltic pump is working in the forward direction, and the direction pointing downward indicates that the peristaltic pump is working in the reverse direction. It also includes power parameters and sensor thresholds.

[0023] The main display module dynamically displays the system flowchart and real-time operating parameters;

[0024] The trend display module visually displays the curves showing changes in operating parameters.

[0025] The alarm management module records and displays alarm information;

[0026] The data management module enables the storage and export of historical data.

[0027] The I / O monitoring module displays the port status graphically.

[0028] The present invention is further configured such that: the I / O monitoring page of the human-computer interaction system graphically displays the real-time working status of the system's input / output ports, wherein a lit port icon indicates a normal working state, and an unlit port icon indicates a fault state, thereby enabling real-time monitoring of port status for system fault diagnosis.

[0029] The present invention is further configured to: collect operating parameters in real time through sensors installed in various parts of the system, including:

[0030] The sensors installed in various parts of the system include: a pressure sensor P1 and a temperature sensor T1 installed before the electrolyte inlet at the bottom of the cathode side of the electrochemical reactor; a pressure sensor P2 and a temperature sensor T2 installed before the electrolyte inlet at the bottom of the anode side of the electrochemical reactor; a temperature sensor T3 installed in the path of the electrolyte returning from the top electrolyte outlet on the cathode side of the electrochemical reactor to the electrolyte tank; and a temperature sensor T4 installed in the path of the electrolyte returning from the top electrolyte outlet on the anode side of the electrochemical reactor to the electrolyte tank.

[0031] The real-time acquired operating parameters include: temperatures t1, t2, t3, and t4 measured by temperature sensors T1, T2, T3, and T4, respectively; pressures p1 and p2 measured by pressure sensors P1 and P2; gas flow rates measured by the first and second gas flow meters; electrolyte flow rates measured by the liquid flow meter; voltage; current; and hydrogen concentration detected by the hydrogen monitor. The frequency of acquiring operating parameters and the data retention time are adjustable.

[0032] The present invention is further configured such that the human-computer interaction system performs display, storage, and analysis including:

[0033] Used to visualize the change curves of at least one of the following operating parameters: temperature-time, pressure-time, voltage-time, and current-time;

[0034] The human-computer interaction system automatically stores operating parameters according to a preset recording frequency. Users can select data within a specific date range and export it to an external storage device in CSV format via a USB interface.

[0035] The present invention is further configured such that: when the human-computer interaction system triggers an alarm when its operating parameters are abnormal, the alarm includes:

[0036] If any of the hydrogen concentrations detected by the various hydrogen monitors exceed the limit, or if there is a fan malfunction, the alarm will be triggered, and the human-machine interface system will then cut off the DC power supply. In addition, any abnormalities in the various sensors or the power supply will also be recorded and displayed as alarm information.

[0037] In summary, the present invention has the following beneficial effects:

[0038] By dividing the entire electrochemical carbon dioxide conversion equipment system into functionally distinct and relatively independent modular units, and connecting each system through standardized interfaces, a high degree of integration and flexible configuration of the electrochemical carbon dioxide conversion equipment can be achieved.

[0039] By setting up a human-computer interaction system specifically designed for the characteristics of electrochemical reactions, intelligent management of the entire process, from user authentication and parameter setting to reaction process monitoring and data analysis, has been achieved. A multi-layered safety protection mechanism, including hydrogen monitoring, parameter over-limit alarms, and emergency power outage shutdown, has been established to effectively ensure the safe operation of the system. Attached Figure Description

[0040] Figure 1 System distribution diagram for an invention of an electrochemical carbon dioxide conversion system;

[0041] Figure 2 A flowchart for inventing an electrochemical carbon dioxide conversion system;

[0042] Figure 3 This is the login interface for the human-computer interaction system in the invention.

[0043] Figure 4 This is the main interface of the human-computer interaction system in the invention;

[0044] Figure 5 This is the parameter setting interface for the human-computer interaction system in the invention.

[0045] Figure 6 The alarm page of the human-computer interaction system in the invention;

[0046] Figure 7 This represents the trend of human-computer interaction systems in invention;

[0047] Figure 8 This is a diagram showing the I / O monitoring module of the human-computer interaction system in the invention.

[0048] Figure 9 This is a diagram showing the data management module of the human-computer interaction system in the invention.

[0049] Attached reference numerals: 1. Reaction system; 2. Gas supply system; 3. Gas-liquid mixing system; 4. Liquid supply system; 5. Electrical system; 6. DC power supply; 7. Operating status indicator light; 8. Human-machine interface system. Detailed Implementation

[0050] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0051] In a feasible embodiment, please refer to Figures 1-9 As shown, an electrochemical carbon dioxide conversion system includes:

[0052] The reaction system 1, gas supply system 2, gas-liquid mixing system 3, liquid supply system 4, electrical system 5, DC power supply 6, operating status indicator light 7, and human-machine interaction system 8 are configured as separable modular units.

[0053] Multi-level user authentication is performed through the human-computer interaction system 8. Users with different permissions have different parameter settings and data access permissions. The human-computer interaction system 8 sets and feeds back reaction parameters, including electrolyte flow rate, gas flow rate, electrolyte temperature, electrolyte pressure, DC power supply parameters, and sensor alarm thresholds.

[0054] Carbon dioxide and electrolyte are supplied to gas-liquid mixing system 3 through gas supply system 2 and liquid supply system 4 respectively. Gas-liquid mixing system 3 fully mixes carbon dioxide and electrolyte to form a gas-liquid two-phase mixture and then supplies it to reaction system 1.

[0055] The electrochemical carbon dioxide reduction reaction is driven by applying preset DC power supply 6 parameters to the reaction system 1 through DC power supply 6.

[0056] Operating parameters are collected in real time by sensors installed on reaction system 1, gas-liquid mixing system 3, liquid supply system 4 and DC power supply 6. The collected operating parameters are sent to human-machine interaction system 8 for display, storage and analysis by PLC controller in electrical system 5. When the collected operating parameters exceed the alarm threshold, an alarm is triggered on human-machine interaction system 8.

[0057] For details, please refer to Figures 1-9 As shown, by dividing the entire system of the electrochemical carbon dioxide conversion equipment into functionally distinct and relatively independent modular units, and connecting each system through standardized interfaces, the electrochemical carbon dioxide conversion equipment can be highly integrated and flexibly configured.

[0058] By setting up a human-computer interaction system 8 specifically designed for the characteristics of electrochemical reactions, intelligent management of the entire process from user authentication, parameter setting, reaction process monitoring to data analysis is realized. A multi-level safety protection mechanism, including hydrogen monitoring, parameter over-limit alarm, and emergency power failure shutdown, is established to effectively ensure the safe operation of the system.

[0059] For further details, please refer to Figures 1-9 As shown, the reaction system 1, gas supply system 2, gas-liquid mixing system 3, liquid supply system 4, electrical system 5, DC power supply 6, and operating status indicator lights, configured as separable modular units, include:

[0060] Reaction system 1 is the core reaction site of the electrochemical carbon dioxide conversion equipment, including an electrochemical reactor, a first fan and a first hydrogen monitor installed at the top of the space of reaction system 1;

[0061] The gas supply system 2 includes a carbon dioxide storage tank and a first gas flow meter to provide a carbon dioxide gas source, a nitrogen storage tank and a second gas flow meter to provide a nitrogen gas source, and both are equipped with precise gas flow control. The inert gas nitrogen can be used to mix with carbon dioxide gas to simulate the atmospheric environment; it can also be connected to the gas-liquid mixing system 3 through a gas pipeline as a blank control group for the electrochemical carbon dioxide reduction reaction.

[0062] The gas-liquid mixing system 3 includes a micro-nano bubble generator to promote the dissolution of carbon dioxide in the electrolyte and enhance the gas-liquid mass transfer efficiency.

[0063] The liquid supply system 4 includes an anode electrolyte tank, a second fan and a second hydrogen monitor installed at the top of the anode electrolyte tank space, a cathode electrolyte tank, a third fan and a third hydrogen monitor installed at the top of the cathode electrolyte tank space, a condenser, an overflow device, a drain device, a liquid flow meter, a level gauge, a sampling device, and a peristaltic pump. The condenser is used to control the electrolyte temperature, the overflow device is used to prevent electrolyte overflow, the drain device is used to ensure that the electrolyte is completely drained, the level gauge is used to observe the electrolyte level in the electrolyte tank in real time, and the sampling device can achieve real-time sampling.

[0064] Electrical system 5, including PLC controller and signal conversion module, realizes data acquisition and equipment control. PLC controller can transmit information to human-machine interaction system 8;

[0065] DC power supply 6, including programmable DC power supply 6, supports local mode and remote mode. In local mode, parameters are output through DC power supply 6, and in remote mode, parameters are output through human-machine interaction system 8 interface.

[0066] The operating status indicator light 7 features a three-color switching function: red indicates a fault has occurred; yellow indicates standby mode; and green indicates normal operating mode.

[0067] Each system adopts a partitioned layout and is connected through standardized interfaces, enabling the various scenarios to be spliced ​​together, achieving a high degree of integration and flexible configuration of electrochemical carbon dioxide conversion equipment.

[0068] For further details, please refer to Figures 3-9 As shown, the human-computer interaction system 8 includes:

[0069] The user login module is used to implement multi-level permission authentication, including three permission levels: administrator, technician and experimenter. Users with different permission levels have different parameter modification ranges, data access permissions and system operation permissions, thereby improving the overall security of the human-computer interaction system 8. Different operators have different operation permissions.

[0070] The parameter setting module is used to set the peristaltic pump speed and rotation direction to control the forward delivery or reverse flow of electrolyte back to the electrolyte tank. The direction icon pointing upward indicates that the peristaltic pump is working in the forward direction, and pointing downward indicates that the peristaltic pump is working in the reverse direction. The power parameters and sensor thresholds are also set through a graphical interface, allowing for intuitive setting of reaction parameters.

[0071] The main display module dynamically displays the system flowchart and real-time operating parameters. It adopts a flowchart-style display method to dynamically show the system's operating status, and the real-time parameters are embedded in the corresponding device locations.

[0072] The trend display module visualizes the changes in operating parameters, including temperature-time, pressure-time, voltage-time, and current-time. By displaying the real-time trends of multiple parameters, it helps operators observe the progress and reaction trends of the operation in real time.

[0073] The alarm management module establishes a comprehensive alarm mechanism. If any hydrogen concentration exceeds the limit as measured by each hydrogen monitor or if there is a fan malfunction, the alarm will be triggered. The human-machine interaction system 8 will then cut off the DC power supply 6, record and display the alarm information. In addition, any abnormalities in various sensors or power supply will also be recorded and displayed as alarm information.

[0074] The data management module enables the collection, storage, and export of historical data, supports multiple data formats, and the human-computer interaction system 8 automatically stores operating parameters according to the preset recording frequency. Users can select data within a specific date range and export it to an external storage device in CSV format via a USB interface.

[0075] The I / O monitoring module graphically displays the port status. The I / O monitoring page of the human-machine interaction system 8 graphically displays the real-time working status of the system's input / output ports. A lit port icon indicates that the port is in working condition, while an unlit port icon indicates a fault condition. The system can diagnose faults in real time by monitoring the port status.

[0076] For further details, please refer to Figures 1-9 As shown, the operating parameters are collected in real time by sensors installed in various parts of the system, including:

[0077] The sensors installed in various parts of the system include: a pressure sensor P1 and a temperature sensor T1 installed before the electrolyte inlet at the bottom of the cathode side of the electrochemical reactor; a pressure sensor P2 and a temperature sensor T2 installed before the electrolyte inlet at the bottom of the anode side of the electrochemical reactor; a temperature sensor T3 installed in the path of the electrolyte returning from the top electrolyte outlet on the cathode side of the electrochemical reactor to the electrolyte tank; and a temperature sensor T4 installed in the path of the electrolyte returning from the top electrolyte outlet on the anode side of the electrochemical reactor to the electrolyte tank.

[0078] The real-time acquired operating parameters include: temperatures t1, t2, t3, and t4 measured by temperature sensors T1, T2, T3, and T4 respectively; pressures p1 and p2 measured by pressure sensors P1 and P2; gas flow rates measured by the first and second gas flow meters; electrolyte flow rates measured by the liquid flow meter; voltage; current; and hydrogen concentration detected by the hydrogen monitor. The frequency of operating parameter acquisition and the data retention time are adjustable.

[0079] For details, please refer to Figures 1-9As shown, before operation, confirm that all systems are properly connected, the electrolyte circulation pipeline is unobstructed, and the electrolyte and gas supply are sufficient. Start the main power supply of the electrochemical carbon dioxide conversion equipment. The human-machine interface system 8 will then guide you to the login interface. The operator enters the username and password through the login interface. The system opens the corresponding operation functions according to the user's permissions. After logging in, enter the main interface of the human-machine interface system 8. The system displays the main parameters of the flowchart. Start the liquid supply system 4 and the gas supply system 2, start the peristaltic pump, and the electrolyte begins to circulate. Adjust the gas and liquid flow rates to the set values, start the DC power supply 6, and the operator sets the reaction parameters in the parameter setting interface to start the electrochemical reaction. During the reaction, the human-machine interface system 8 displays the changes of each parameter in real time, and the operator can observe the parameter change trend through the trend panel.

[0080] Furthermore, during normal system operation, simulating hydrogen exceeding limits, when the hydrogen concentration is detected to exceed the set threshold, the human-machine interface system immediately triggers the following protective actions: displaying alarm information on the alarm page and recording the alarm time; issuing an audible alarm signal to the operator; and automatically cutting off the DC power supply.

[0081] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention.

Claims

1. An electrochemical carbon dioxide conversion system, characterized in that, The electrochemical carbon dioxide conversion system includes: a reaction system (1) configured as a separable modular unit, a gas supply system (2), a gas-liquid mixing system (3), a liquid supply system (4), an electrical system (5), a DC power supply (6), an operating status indicator (7), and a human-machine interaction system (8). Multi-level user permission authentication is performed through the human-computer interaction system (8). Users with different permissions have different parameter settings and data access permissions. The human-computer interaction system (8) sets and feeds back reaction parameters, including electrolyte flow rate, gas flow rate, electrolyte temperature, electrolyte pressure, DC power supply (6) parameters and sensor alarm thresholds. Carbon dioxide and electrolyte are transported to the gas-liquid mixing system (3) through the gas supply system (2) and the liquid supply system (4), respectively. The gas-liquid mixing system (3) fully mixes carbon dioxide and electrolyte to form a gas-liquid two-phase mixture and transports it to the reaction system (1). The preset DC power supply (6) parameters are applied to the reaction system (1) through the DC power supply (6) to drive the electrochemical carbon dioxide reduction reaction; The operating parameters are collected in real time by sensors installed in the reaction system (1), gas-liquid mixing system (3), liquid supply system (4), gas supply system (2) and DC power supply (6), and the collected operating parameters are sent to the human-machine interaction system (8) for display, storage and analysis by the PLC controller in the electrical system (5). When the collected operating parameters exceed the alarm threshold, an alarm is triggered on the human-machine interaction system (8).

2. The electrochemical carbon dioxide conversion system according to claim 1, characterized in that: The reaction system (1), gas supply system (2), gas-liquid mixing system (3), liquid supply system (4), electrical system (5), DC power supply (6), and operating status indicator (7), configured as separable modular units, include: The reaction system (1) includes an electrochemical reactor, a first blower and a first hydrogen monitor installed on top of the reaction system (1); The gas supply system (2) includes a carbon dioxide storage tank and a first gas flow meter, a nitrogen storage tank and a second gas flow meter; The gas-liquid mixing system (3) includes a micro-nano bubble generator for promoting the dissolution of carbon dioxide in the electrolyte; The liquid supply system (4) includes an anode electrolyte tank, a second blower and a second hydrogen monitor installed on the top of the anode electrolyte tank, a cathode electrolyte tank, a third blower and a third hydrogen monitor installed on the top of the cathode electrolyte tank, a condensing device, an overflow device, a draining device, a liquid flow meter, a level gauge, a sampling device, and a peristaltic pump. The condensing device is used to control the electrolyte temperature, the overflow device is used to prevent the electrolyte from overflowing, the draining device is used to ensure that the electrolyte is completely drained, the level gauge is used to observe the electrolyte level in the electrolyte tank in real time, and the sampling device can achieve real-time sampling. The electrical system (5) includes a PLC controller and a signal conversion module; DC power supply (6), including programmable DC power supply (6). The operating status indicator (7) includes three color switching: red, yellow, and green. Red indicates that a fault has occurred; yellow indicates that it is in standby mode; and green indicates that it is in normal working mode. Each system adopts a partitioned layout and is connected through standardized interfaces.

3. The electrochemical carbon dioxide conversion system according to claim 2, characterized in that: The human-computer interaction system (8) includes: The user login module is used to implement multi-level permission authentication, including three permission levels: administrator, technician and experimenter. Users with different permission levels have different parameter modification ranges, data access permissions and system operation permissions. The parameter setting module is used to set the peristaltic pump speed, peristaltic pump rotation direction, and control the forward delivery or reverse return of electrolyte to the electrolyte tank. The direction icon pointing upward indicates that the peristaltic pump is working in the forward direction, and the direction pointing downward indicates that the peristaltic pump is working in the reverse direction. It also includes power parameters and sensor thresholds. The main display module dynamically displays the system flowchart and real-time operating parameters; The trend display module visually displays the curves showing changes in operating parameters. The alarm management module records and displays alarm information; The data management module enables the storage and export of historical data. The I / O monitoring module displays the port status graphically.

4. The electrochemical carbon dioxide conversion system according to claim 3, characterized in that: The I / O monitoring page of the human-computer interaction system (8) graphically displays the real-time working status of the system's input / output ports. A lit port icon indicates that the system is in normal working condition, while an unlit port icon indicates a fault condition. The system can diagnose faults by monitoring the port status in real time.

5. The electrochemical carbon dioxide conversion system according to claim 1, characterized in that: Real-time acquisition of operating parameters, including those from sensors installed throughout the system: The sensors installed in various parts of the system include: a pressure sensor P1 and a temperature sensor T1 installed before the electrolyte inlet at the bottom of the cathode side of the electrochemical reactor; a pressure sensor P2 and a temperature sensor T2 installed before the electrolyte inlet at the bottom of the anode side of the electrochemical reactor; a temperature sensor T3 installed in the path of the electrolyte returning from the top electrolyte outlet on the cathode side of the electrochemical reactor to the electrolyte tank; and a temperature sensor T4 installed in the path of the electrolyte returning from the top electrolyte outlet on the anode side of the electrochemical reactor to the electrolyte tank. The real-time acquired operating parameters include: temperatures t1, t2, t3, and t4 measured by temperature sensors T1, T2, T3, and T4, respectively; pressures p1 and p2 measured by pressure sensors P1 and P2, respectively; gas flow rates measured by the first and second gas flow meters; electrolyte flow rates measured by the liquid flow meter; voltage; current; and hydrogen concentration detected by the hydrogen monitor. The frequency of acquiring operating parameters and the data retention time are adjustable.

6. The electrochemical carbon dioxide conversion system according to claim 1, characterized in that: The human-computer interaction system (8) performs display, storage, and analysis, including: Used to visualize the change curves of at least one of the following operating parameters: temperature-time, pressure-time, voltage-time, and current-time; The human-computer interaction system (8) automatically stores the operating parameters according to the preset recording frequency. Users can select data in a specific date range and export it to an external storage device in CSV format via the USB interface.

7. The electrochemical carbon dioxide conversion system according to claim 1, characterized in that: The human-computer interaction system (8) triggers alarms when operating parameters are abnormal, including: If the hydrogen concentration detected by each hydrogen monitor exceeds the limit or the fan fails, the human-machine interaction system (8) will trigger the DC power supply (6) to shut down after the alarm is triggered. In addition, abnormalities of each sensor and power supply will also be recorded and alarm information will be displayed.

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