An adaptive seawater desulfurization method, device, equipment and medium

Abstract

The present application belongs to the technical field of flue gas desulfurization, and provides a self-adaptive seawater desulfurization method, device, equipment and medium, which are used for improving desulfurization efficiency and reducing energy consumption. The method comprises the following steps: determining a corresponding target control mode through modal perception data comprising at least one of sulfur dioxide load, seawater turbidity and electrochemical regeneration reactor working parameters; generating a target control parameter based on the corresponding target control mode, so that each execution mechanism executes the target control parameter to realize seawater desulfurization, thereby improving the desulfurization efficiency and reducing the energy consumption.

Description

Technical Field

[0001] This invention relates to the field of flue gas desulfurization technology, and more specifically, to an adaptive seawater desulfurization method, apparatus, equipment, and medium. Background Technology

[0002] Seawater desulfurization technology is a process that utilizes the natural alkalinity of seawater to absorb and remove sulfur dioxide from flue gas, playing an important role in flue gas emissions from coastal coal-fired power plants or industrial boilers.

[0003] However, in practice, seawater desulfurization schemes typically rely on feedback mechanisms based on a single parameter, such as a fixed liquid-to-gas ratio. This results in a single control dimension and, under dynamic conditions involving multiple coupled variables, low desulfurization efficiency and high energy consumption. Therefore, seawater desulfurization schemes suffer from the drawbacks of low desulfurization efficiency and high energy consumption. Summary of the Invention

[0004] The present invention aims to provide an adaptive seawater desulfurization method, apparatus, equipment and medium to solve the problems of low desulfurization efficiency and high energy consumption in related seawater desulfurization schemes.

[0005] In a first aspect, the present invention provides an adaptive seawater desulfurization method, comprising: Acquire modal sensing data; wherein, the modal sensing data includes at least one of sulfur dioxide load, seawater turbidity, and operating parameters of the electrochemical regeneration reactor; Based on modal sensing data, a target control mode is determined; wherein, the target control mode is used to indicate the seawater desulfurization control strategy to be adopted under the scenario of adapting to modal sensing data; Based on the target control mode, target control parameters are generated so that each actuator can execute the target control parameters to achieve seawater desulfurization.

[0006] The technical solution provided in this application offers at least the following beneficial effects: By using modal sensing data including at least one of the following: sulfur dioxide load, seawater turbidity, and operating parameters of the electrochemical regeneration reactor, a corresponding target control mode is determined. Target control parameters are then generated based on this target control mode, enabling each actuator to execute the target control parameters to achieve seawater desulfurization. Thus, this application incorporates safety factors such as equipment health status and sudden changes in water quality into the control system through modal sensing data from multiple dimensions. Furthermore, based on the modal sensing data, a target control mode adapted to the modal sensing data is determined, enabling the adoption of control strategies adapted to the current operating conditions in dynamic scenarios with multiple variables. By improving adaptability to different operating conditions, desulfurization efficiency is increased, and energy consumption is reduced.

[0007] Secondly, this application provides an adaptive seawater desulfurization device, comprising: The acquisition module is used to acquire modal sensing data; wherein, the modal sensing data includes at least one of sulfur dioxide load, seawater turbidity, and operating parameters of the electrochemical regeneration reactor; The processing module is used to determine the target control mode based on modal sensing data; wherein, the target control mode is used to indicate the seawater desulfurization control strategy to be adopted under the scenario of adapting to modal sensing data; The processing module is also used to generate target control parameters based on the target control mode, so that each actuator can execute the target control parameters to achieve seawater desulfurization.

[0008] Thirdly, this application provides an electronic device comprising: a processor and a memory; the memory storing processor-executable instructions; when the processor is configured to execute the instructions, causing the electronic device to implement the method of the first aspect described above.

[0009] Fourthly, this application provides a computer-readable storage medium comprising: computer software instructions; which, when executed in an electronic device, cause the electronic device to implement the method described in the first aspect.

[0010] The beneficial effects of the second to fourth aspects mentioned above are described in the corresponding description of the first aspect and will not be repeated here. Attached Figure Description

[0011] Figure 1 A schematic diagram of an adaptive seawater desulfurization system provided in this application embodiment; Figure 2 A schematic flowchart of an adaptive seawater desulfurization method provided in an embodiment of this application; Figure 3 This is a schematic diagram of the composition of an adaptive seawater desulfurization device provided in an embodiment of this application; Figure 4 This is a schematic diagram of the structure of an electronic device provided in an embodiment of this application. Detailed Implementation

[0012] In this article, the term "and / or" is merely a description of the relationship between related objects, indicating that there can be three relationships. For example, A and / or B can represent three situations: A exists alone, A and B exist simultaneously, and B exists alone.

[0013] To facilitate a clear description of the technical solutions of the embodiments of this application, the terms "first" and "second" are used in the embodiments of this application to distinguish the same or similar items with essentially the same function and effect. Those skilled in the art can understand that the terms "first" and "second" are not intended to limit the quantity or execution order.

[0014] Furthermore, the terms "comprising" and "having," and any variations thereof, used in the description of this application are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or apparatus that includes a series of steps or units is not limited to the steps or units listed, but may optionally include other steps or units not listed, or may optionally include other steps or units inherent to such process, method, product, or apparatus.

[0015] It should be noted that in the embodiments of this application, the words "exemplary" or "for example" are used to indicate examples, illustrations, or explanations. Any embodiment or design scheme described as "exemplary" or "for example" in the embodiments of this application should not be construed as being more preferred or advantageous than other embodiments or design schemes. Specifically, the use of the words "exemplary" or "for example" is intended to present the relevant concepts in a specific manner.

[0016] In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0017] In seawater desulfurization schemes, the emitted flue gas and sprayed seawater come into countercurrent contact within the absorption tower. The sulfur dioxide (SO2) in the flue gas is absorbed by the seawater, forming acidic seawater, which typically needs to be oxidized in a regeneration unit (such as an aeration tank) before being discharged into the sea to meet standards. Seawater desulfurization schemes have advantages such as short process flow and no solid waste generation, but they still have shortcomings in terms of operational efficiency and economy.

[0018] First, there is the complexity and variability of actual operating conditions. In actual operation, flue gas volume and SO2 concentration fluctuate frequently, and parameters such as seawater temperature, turbidity, and alkalinity also vary with the seasons and tides. In relevant seawater desulfurization schemes, it is usually based on a fixed liquid-to-gas ratio or single parameter feedback, which makes it difficult to maintain high desulfurization efficiency and low operating energy consumption under such dynamic conditions of multivariate coupling.

[0019] Secondly, there is a lack of status awareness and proactive maintenance capabilities for key equipment. In seawater desulfurization solutions, key components such as electrochemical regeneration units rely heavily on periodic manual inspections and planned shutdowns for maintenance, lacking real-time status monitoring and early warning. This not only poses a risk of unplanned shutdowns, but also leads to increased energy consumption due to suboptimal equipment operation.

[0020] Although there are improvement schemes for seawater desulfurization, these schemes usually only focus on local optimization, such as adjusting the pump frequency by comprehensively considering parameters such as coal sulfur content and seawater alkalinity to achieve energy saving. Such improvement schemes do not incorporate safety factors such as equipment health status and sudden changes in water quality into the closed-loop control system. The control dimension is singular, and in the dynamic scenario of multi-variable coupling faced by seawater desulfurization, the desulfurization efficiency is still low and the energy consumption is high.

[0021] To address the aforementioned technical problems, this application provides an adaptive seawater desulfurization method, apparatus, equipment, and medium. By utilizing modal sensing data including at least one of sulfur dioxide load, seawater turbidity, and operating parameters of the electrochemical regeneration reactor, a corresponding target control mode is determined. Target control parameters are generated based on this target control mode, enabling each actuator to execute the target control parameters to achieve seawater desulfurization. Thus, this application incorporates safety factors such as equipment health status and sudden changes in water quality into the control system through modal sensing data encompassing multiple dimensions. Furthermore, based on the modal sensing data, a target control mode adapted to the modal sensing data is determined, enabling the adoption of control strategies adapted to the current operating conditions in dynamic scenarios with multiple variables. By improving adaptability to different operating conditions, desulfurization efficiency is increased, and energy consumption is reduced.

[0022] The embodiments provided in this application will now be described in detail with reference to the accompanying drawings.

[0023] Figure 1 This is a schematic diagram of an adaptive seawater desulfurization system provided in an embodiment of this application. The adaptive seawater desulfurization system provided in this embodiment includes an absorption tower, an electrochemical regeneration unit, a seawater supply unit, and an adaptive control unit.

[0024] The electrochemical regeneration unit includes a main electrochemical regeneration reactor and a backup electrochemical regeneration reactor arranged in parallel. Each reactor is equipped with an anode plate, a cathode plate, and a reference electrode inserted inside.

[0025] The seawater supply unit includes a fresh seawater tank, a mixing tank, a variable frequency seawater pump, and an electric regulating valve located on the outlet pipe of the variable frequency seawater pump.

[0026] like Figure 1 As shown, the adaptive control unit includes a parameter sensing subunit 5 and a collaborative control subunit 6. The adaptive control subunit monitors the status data of the absorption tower, the electrochemical regeneration unit 10, and the seawater pool 11 in the seawater supply unit through the parameter sensing unit 5. The collaborative control subunit 6 in the adaptive control unit implements the adaptive seawater desulfurization method provided in this application.

[0027] In one possible implementation, the parameter sensing unit 5 includes a flue gas analyzer 1, a seawater temperature sensor 14-1, a seawater turbidity meter 14-2, a pressure drop meter 3, and a reference electrode 4.

[0028] The flue gas analyzer 1 is installed at the flue gas inlet 13-1 of the absorption tower to monitor the flue gas volume at the inlet of the absorption tower in real time. and sulfur dioxide concentration Seawater temperature sensor 14-1 and seawater turbidity meter 14-2 are installed in the seawater supply pipeline at the outlet of the mixing tank to monitor the turbidity of the seawater to be sprayed in real time. and seawater temperature Pressure drop meter 3 is installed at the inlet and outlet of electrochemical regeneration reactor 10 to monitor the internal pressure drop of electrochemical regeneration reactor 10 in real time. The reference electrode 4 is installed inside the electrochemical regeneration reactor 10 to monitor the anode working potential in real time. .

[0029] In one possible implementation, the collaborative control subunit is connected to all instruments and actuators (such as the variable frequency seawater pump 8-1, the electric regulating valve 8-2, and the adjustable DC power supply) in the parameter sensing subunit.

[0030] The seawater desulfurization process is described, which includes gas absorption, seawater circulation and treatment, electrochemical regeneration, and safety linkage.

[0031] In one possible implementation, the gas absorption stage refers to the process where the flue gas to be treated enters the absorption tower through the flue gas inlet 13-1. Inside the absorption tower, seawater is evenly sprayed through the spray layer 13-3 and comes into full contact with the flue gas in the packing layer 13-2, thereby neutralizing the sulfur dioxide in the flue gas using the alkalinity of the seawater itself. The resulting gas-liquid mixture then flows through the demister 13-4 to remove entrained droplets, and the purified flue gas is discharged into the atmosphere from the flue gas outlet 13-5 of the absorption tower.

[0032] In one possible implementation, the seawater circulation treatment stage involves supplying fresh seawater from the fresh seawater pool 11, which then flows into the mixing pool 12 for initial mixing. The power for transporting seawater to the mixing pool 12 is provided by a variable frequency seawater pump 8-1, and an electric regulating valve 8-2 precisely regulates the seawater flow rate. A seawater quality instrument 2 monitors the water quality in real time, while a seawater temperature sensor 14-1 and a seawater turbidity meter 14-2 collect seawater temperature and turbidity data, respectively. All monitoring information is transmitted to the parameter sensing subunit 5 for analysis, and then the collaborative control subunit 6 outputs control commands to dynamically adjust the opening of the variable frequency seawater pump 8-1 and the electric regulating valve 8-2, ensuring that the seawater parameters (such as temperature, turbidity, and flow rate) entering the absorption tower 13 are stably adapted to the desulfurization requirements.

[0033] In one possible implementation, the electrochemical regeneration process involves transporting seawater after it has absorbed sulfur dioxide to the electrochemical regeneration reactor 10. A pressure drop meter 3 in the pipeline monitors the fluid pressure drop to ensure safe transport. A reference electrode 4 in the electrochemical regeneration reactor 10 assists in the directional electrochemical reaction. An adjustable DC power supply provides electrical energy to drive the electrolysis process, converting pollutants (such as sulfites) in the seawater after it has absorbed sulfur dioxide into separable substances, thus completing the seawater regeneration.

[0034] In one possible implementation, the safety linkage refers to responding to abnormal operating conditions through the safety linkage valve group. During normal operation, the electric three-way valve 9-1 of the safety linkage valve group maintains the normal water flow direction. When it is necessary to clean equipment (such as the absorption tower or the scale inside the electrochemical regeneration reactor 10), the electric three-way valve 9-1 switches the water flow path, the backwash pump 9-22 starts to pressurize, and the backwash water flow is controlled by the backwash valve 9-21 to backwash the target equipment, remove the deposits, and ensure the long-term efficient operation of the system.

[0035] It should be noted that the schematic diagrams of the seawater desulfurization system described in the embodiments of this application are for the purpose of more clearly illustrating the technical solutions of the embodiments of this application, and do not constitute a limitation on the technical solutions provided in the embodiments of this application. As those skilled in the art will know, with the evolution of seawater desulfurization systems, the technical solutions provided in the embodiments of this application are also applicable to similar technical problems.

[0036] The adaptive seawater desulfurization method provided in the embodiments of this application will be described in detail below with reference to the accompanying drawings.

[0037] Figure 2 This is a schematic flowchart illustrating an adaptive seawater desulfurization method provided in an embodiment of this application. The adaptive seawater desulfurization method provided in this embodiment is applied to... Figure 1 The aforementioned collaborative control subunit. Combined with... Figure 2 As shown, the adaptive seawater desulfurization method includes the following steps: S201. Acquire modal sensing data.

[0038] In some embodiments, the modal sensing data includes at least one of sulfur dioxide load, seawater turbidity, and operating parameters of the electrochemical regeneration reactor; of course, the modal sensing data also includes seawater temperature. .

[0039] The sulfur dioxide load is calculated based on the collected flue gas volume and sulfur dioxide concentration at the inlet of the absorption tower. The sulfur dioxide load is calculated using the following formula (1): (1); in, For sulfur dioxide load, The volume of flue gas at the inlet of the absorption tower. This refers to the concentration of sulfur dioxide.

[0040] For example, the operating parameters of the electrochemical regeneration reactor include the high pressure drop value of the electrochemical regeneration reactor. and anode potential value .

[0041] S202. Determine the target control mode based on modal sensing data.

[0042] Among them, the target control mode is used to indicate the seawater desulfurization control strategy adopted in the scenario of adaptive modal sensing data.

[0043] In some embodiments, in response to the modal sensing data satisfying a first preset condition, the target control mode is determined to be a security enhancement mode.

[0044] For example, the first preset condition is used to indicate any of the following: sulfur dioxide load is greater than the first preset load value, seawater turbidity is greater than the preset turbidity, or the operating parameters of the electrochemical regeneration reactor are greater than the first preset operating parameters.

[0045] For example, when the modal sensing data meets a first preset condition, that is, if > or > or > or > If so, switch to enhanced security mode.

[0046] in, For sulfur dioxide load, For the design load value, To preset the seawater turbidity value, The design pressure drop within the electrochemical regeneration reactor, The operating potential is designed for the anode of the electrochemical regeneration reactor. , , , This is the adjustment coefficient in the first adjustment coefficient group. Used to adjust the design load value to obtain the first preset load value. Used to adjust the design seawater turbidity value to obtain the preset turbidity. This is used to adjust the design operating potential of the electrochemical regeneration reactor to obtain the preset potential value in the first preset operating parameters. The design pressure drop of the electrochemical regeneration reactor is adjusted to obtain the preset reduction value in the first preset operating parameters. The adjustment coefficients in the first adjustment coefficient group are within the first preset range, such as 120% to 160%.

[0047] In some embodiments, in response to the modal sensing data satisfying a second preset condition, the target control mode is determined to be an economical operation mode.

[0048] For example, the second preset condition is used to indicate that the sulfur dioxide load is less than the second preset load value and the operating parameters of the electrochemical regeneration reactor are less than the second preset operating parameters.

[0049] For example, when the modal sensing data meets the second preset condition, that is... < and < and < Then, the system switches to an economic operation mode.

[0050] in, , , This is the adjustment factor in the second adjustment factor group. Used to adjust the design load value to obtain the second preset load value. This is used to adjust the design operating potential of the electrochemical regeneration reactor to obtain the preset potential value in the second preset operating parameters. This is used to adjust the design pressure drop of the electrochemical regeneration reactor to obtain the preset reduction value in the second preset operating parameters. The adjustment coefficients in the second adjustment coefficient group are within the second preset range, such as 20% to 60%.

[0051] Among them, the first preset load value is greater than the second preset load value, and the first preset operating parameter is greater than the second preset operating parameter.

[0052] In some embodiments, in response to the modal sensing data not meeting the first preset condition and the second preset condition, the target control mode is determined to be the high-efficiency desulfurization mode.

[0053] S203. Based on the target control mode, generate target control parameters so that each actuator can execute the target control parameters to achieve seawater desulfurization.

[0054] In some embodiments, a reference seawater flow rate is calculated based on the sulfur dioxide load, and a first seawater flow rate and a first current density are calculated based on the reference seawater flow rate; wherein, the first seawater flow rate is used to indicate the seawater flow rate neutralized with sulfur dioxide, and the first current density is used to indicate the current intensity used to regulate the efficiency of the electrochemical reaction.

[0055] For example, the baseline seawater flow rate is calculated using the following formula (2): (2); in, Based on the seawater flow rate, For sulfur dioxide load, The target desulfurization efficiency is set at >95%, with a safety margin of 1%-5%. It is a function of seawater alkalinity, seawater temperature, and the stoichiometric ratio of sulfur dioxide absorption, with dimensions of seawater volume to sulfur dioxide mass.

[0056] By introducing temperature calibration, the first seawater flow rate is determined based on the reference seawater flow rate, as shown in equation (3) below: (3); in, The first seawater flow rate, Based on the seawater flow rate, Here is the temperature correction factor, which is... The value is the seawater temperature, used to indicate when the seawater temperature is below 20 degrees Celsius, and to appropriately increase the seawater flow rate to compensate for the decrease in reaction rate.

[0057] Based on the sulfur dioxide load, the first current density is calculated and obtained using the following formula (4): (4); in, The first current density, For sulfur dioxide load, The reaction stoichiometric coefficient, For background current density, This represents the anode area.

[0058] In some embodiments, in response to the target control mode being a high-efficiency desulfurization mode, the first seawater flow rate and the first current density are marked as target control parameters.

[0059] In some embodiments, in response to the target control mode being a safety-enhanced mode, target control parameters are generated based on a first seawater flow rate and a first current density.

[0060] For example, in response to a sulfur dioxide load exceeding a first preset load value, i.e. > At that time, the first seawater flow rate is amplified by a first safety factor, that is, based on the first seawater flow rate, the first safety factor is uniformly increased by, for example, 10%, resulting in the amplified first seawater flow rate. .

[0061] For example, in response to seawater turbidity exceeding a preset turbidity, i.e. > At that time, the first seawater flow rate is amplified using a second safety factor method. That is, based on the first seawater flow rate, a second safety factor, such as 5%, is uniformly increased, resulting in the amplified first seawater flow rate. The first safety factor is greater than the second safety factor.

[0062] For example, based on the amplified first seawater flow rate, the target seawater pump frequency value is determined and marked as the target control parameter.

[0063] For example, in response to the electrochemical regeneration reactor operating parameters being greater than the first preset operating parameters, a reverse target parameter is determined based on the first seawater flow rate and the first current density, and the reverse target parameter is marked as the target control parameter.

[0064] When the operating parameters of the electrochemical regeneration reactor are greater than the first preset operating parameters, the reverse target parameters are determined based on the first seawater flow rate and the first current density.

[0065] Furthermore, in response to the high pressure reduction value of the electrochemical regeneration reactor being greater than the preset reduction value, that is... > At that time, the electric three-way valve is controlled to switch the water flow to the standby reactor, the backwash valve is opened, and the first seawater flow rate is amplified by a third safety factor, such as 1.5 to 2; wherein the third safety factor is greater than the first safety factor; Based on the amplified seawater flow rate using the third safety factor, the frequency value of the reverse seawater pump is determined and marked as the reverse target parameter. This is used to backwash the valves of the electrochemical regeneration reactor until the high pressure drop in the electrochemical regeneration reactor is less than or equal to a preset drop value. .

[0066] Furthermore, in response to the anode potential value of the electrochemical regeneration reactor being greater than the preset potential value, that is... > The first current density is amplified by a third safety factor, such as 1.5 to 2.

[0067] The current density, amplified by the third safety factor, is marked as the reverse target parameter. The adjustable DC power supply executes the reverse target parameter to apply a reverse pulse current to the electrochemical regeneration reactor until the anode potential of the electrochemical regeneration reactor is less than or equal to the preset potential value. .

[0068] In summary, the embodiments of this application can provide early warning of blockage and electrode passivation risks by real-time monitoring of the pressure difference and anode potential of the electrochemical regeneration reactor, and can achieve non-stop intervention by automatically switching to backup units and online electrochemical cleaning, thus significantly improving the sustainability of the system.

[0069] In some embodiments, in response to the target control mode being the economic operation mode, target control parameters are generated by a preset energy-saving optimization algorithm.

[0070] For example, based on a preset interval time The first seawater flow rate and the first current density are reduced by a preset reduction factor, and the corresponding outlet sulfur dioxide concentration is recorded after each reduction in seawater flow rate and current density. and desulfurization efficiency .

[0071] The preset energy-saving optimization algorithm includes the following steps: S1. Initialization, retrieve , .

[0072] S2, at a preset interval time The first seawater flow rate is calculated as a period. Reduce the current value by a%, which is the reduced seawater flow rate. ;synchronously increase the first current density Decrease the current value by b%, that is a and b are preset reduction coefficients in the reduction coefficient group, with values ​​ranging from 0.1 to 10; (Setting...) , .

[0073] S3, Monitor the next preset interval time. Post-export sulfur dioxide concentration If the sulfur dioxide concentration at the export site... c% Preset emission limits and desulfurization efficiency > Then repeat step S2; at this time =0.9-1.1, c=60-90.

[0074] S4. If the outlet sulfur dioxide concentration d% Emission standard limits, or ≤ Then set and Revert to the previous cycle and The values ​​are then set and locked as the current optimal economic operating parameters, that is, the seawater flow rate and current density corresponding to the current desulfurization efficiency and outlet sulfur dioxide concentration are marked as the target seawater flow rate and target current density. =0.6-0.8, d=90-120.

[0075] That is, in response to the reduced first seawater flow rate and reduced first current density satisfying the preset backoff conditions, the flow rate and current density are back to the previous reduced flow rate and current density, and are marked as the target seawater flow rate and target current density.

[0076] The preset rollback condition is used to indicate either of the following: the outlet sulfur dioxide concentration is greater than or equal to the preset emission standard limit, or the desulfurization efficiency is less than or equal to the preset efficiency.

[0077] Based on the target seawater flow rate, the target seawater pump frequency value is determined, and the target seawater pump frequency value and the target current density are marked as target control parameters.

[0078] In summary, the embodiments of this application, through the set economic operation mode and built-in optimization algorithm, automatically lock the lowest energy consumption operation point that meets emission requirements under low load conditions, which can achieve a systemic power saving of 10%-15%, resulting in outstanding economic benefits.

[0079] In this embodiment, a corresponding target control mode is determined using modal sensing data including at least one of sulfur dioxide load, seawater turbidity, and operating parameters of the electrochemical regeneration reactor. Target control parameters are then generated based on this mode, enabling each actuator to execute the target control parameters to achieve seawater desulfurization. Thus, this application incorporates safety factors such as equipment health status and sudden changes in water quality into the control system through modal sensing data spanning multiple dimensions. Furthermore, based on the modal sensing data, a target control mode adapted to the data is determined, enabling the adoption of control strategies adapted to the current operating conditions in dynamic scenarios with multiple variables. By improving adaptability to different operating conditions, desulfurization efficiency is increased, and energy consumption is reduced.

[0080] Taking a 300 MW coal-fired power unit's seawater desulfurization system as an example, this solution employs an adaptive seawater desulfurization method. The system includes a 14000 mm diameter absorption tower and a parallel electrochemical regeneration reactor unit, comprising one main reactor and one standby reactor. Each reactor contains parallel high-efficiency catalytic electrode plates. The parameter sensing unit is equipped with a laser flue gas analyzer, an online seawater temperature sensor, a seawater turbidity meter, an electrochemical regeneration reactor pressure drop meter, and a built-in reference electrode. The collaborative control subunit uses an industrial PLC as the intelligent collaborative controller, performing data acquisition, mode decision-making, and control output every 10 seconds.

[0081] During a year of actual operation, the seawater desulfurization system demonstrated excellent adaptability. When the unit load dropped below 50% of the design value and the equipment was in good condition, it automatically switched to the economic operation mode. Through the built-in energy-saving optimization algorithm, the seawater circulation flow rate and regeneration current density were optimized and reduced by 8% and 12% respectively within 20 minutes. At this time, the desulfurization efficiency was stably maintained at 97.6%, and the overall power consumption of the system was reduced by about 13% compared with the traditional mode.

[0082] When a heavy rain causes the turbidity of the incoming seawater to momentarily exceed 60 NTU (system preset) =40 NTU), the seawater desulfurization system immediately entered a safety enhancement mode, automatically increasing the flushing flow. Subsequently, when the main reactor pressure differential was detected to rise to the warning threshold of 16 kPa, the co-control unit automatically completed a seamless switch of the process flow to the standby reactor within 30 seconds and initiated an automatic backwash of the main reactor lasting 12 minutes. The entire process did not cause any disturbance to the main desulfurization process, effectively avoiding unplanned shutdowns. In addition, through continuous monitoring of the anode potential by the reference electrode, the seawater desulfurization system automatically triggered an online electrode cleaning procedure when the potential value abnormally rose to 1.85 V. After applying a specific reverse pulse current, the potential recovered to the normal level of 1.65 V within 2 hours, realizing preventive maintenance of critical equipment.

[0083] Comparative Example 1: This comparative example uses the same core process equipment as the operational example, but the control system is only a single-loop PID regulator based on a fixed liquid-to-gas ratio (L / G). The seawater flow rate is set according to the design flue gas volume, and the electrochemical regeneration unit operates with a constant current density. The system lacks online monitoring of seawater turbidity, reactor differential pressure, and anode potential; maintenance relies on weekly inspections and quarterly planned shutdowns for overhaul. A summary of the operational results and performance indicators is shown in Table 1.

[0084] Comparative Example 2: This comparative control system is an optimization of traditional control. Its control system can adjust the seawater pump frequency and regeneration current according to the real-time flue gas sulfur dioxide load, possessing preliminary load-following capability. The seawater desulfurization system adds historical data recording and alarm functions for key parameters, but does not include reactor differential pressure (…). ), anode potential ( ) and seawater turbidity ( The signal access control loop cannot trigger proactive maintenance and mode switching based on equipment health status. Safety relies on periodic switching (e.g., every two weeks) and planned offline cleaning. A summary of performance indicators is shown in Table 1.

[0085] Table 1

[0086] As shown in Table 1, the adaptive seawater desulfurization method provided in this application achieves minimum energy consumption and maximum operational safety while ensuring desulfurization efficiency through multi-modal collaborative control. Its proactive safety defense mechanism effectively avoids unplanned downtime, while the economic operation mode brings direct energy-saving benefits, improves desulfurization efficiency, reduces energy consumption, and its overall performance is significantly better than traditional single-factor control or optimization control schemes lacking closed-loop perception of equipment status.

[0087] In some embodiments, this application also provides an adaptive seawater desulfurization device. This adaptive seawater desulfurization device may include one or more functional modules for implementing an adaptive seawater desulfurization method according to the above method embodiments.

[0088] For example, Figure 3 This is a schematic diagram illustrating the composition of an adaptive seawater desulfurization device provided in an embodiment of this application. Figure 3 As shown, the adaptive seawater desulfurization device includes: an acquisition module 301 and a processing module 302.

[0089] The acquisition module 301 is used to acquire modal sensing data; wherein, the modal sensing data includes at least one of sulfur dioxide load, seawater turbidity, and operating parameters of the electrochemical regeneration reactor.

[0090] The processing module 302 is used to determine the target control mode based on the modal sensing data; wherein the target control mode is used to indicate the seawater desulfurization control strategy to be adopted under the scenario of adapting to the modal sensing data.

[0091] The processing module 302 is also used to generate target control parameters based on the target control mode, so that each actuator can execute the target control parameters to achieve seawater desulfurization.

[0092] In some embodiments, the processing module 302 is specifically used to determine the target control mode as a security enhancement mode in response to the modal sensing data satisfying a first preset condition; In response to the modal sensing data meeting the second preset condition, the target control mode is determined to be the economic operation mode; In response to the modal sensing data not meeting the first and second preset conditions, the target control mode is determined to be the high-efficiency desulfurization mode.

[0093] In some embodiments, the processing module 302 is specifically used to calculate a first seawater flow rate and a first current density based on the sulfur dioxide load; wherein, the first seawater flow rate is used to indicate the seawater flow rate neutralized with sulfur dioxide, and the first current density is used to indicate the current intensity that regulates the efficiency of the electrochemical reaction. In response to the target control mode being the safety enhancement mode, target control parameters are generated based on the first seawater flow rate and the first current density; In response to the target control mode being the economic operation mode, target control parameters are generated through a preset energy-saving optimization algorithm; In response to the target control mode being the high-efficiency desulfurization mode, the first seawater flow rate and the first current density are marked as target control parameters.

[0094] In some embodiments, the processing module 302 is specifically used to amplify the first seawater flow rate by a first safety factor when the sulfur dioxide load is greater than a first preset load value. When the seawater turbidity is greater than a preset turbidity, the first seawater flow rate is amplified using a second safety factor method; wherein the first safety factor is greater than the second safety factor. Based on the amplified first seawater flow rate, the target seawater pump frequency value is determined and marked as the target control parameter. When the operating parameters of the electrochemical regeneration reactor are greater than the first preset operating parameters, the reverse target parameters are determined based on the first seawater flow rate and the first current density, and the reverse target parameters are marked as target control parameters.

[0095] In some embodiments, the processing module 302 is specifically used to amplify the first seawater flow rate by a third safety factor when the high pressure reduction value of the electrochemical regeneration reactor is greater than a preset reduction value; wherein the third safety factor is greater than the first safety factor; Based on the seawater flow rate amplified by the third safety factor, the frequency value of the reverse seawater pump is determined, and the frequency value of the reverse seawater pump is marked as the reverse target parameter, so as to achieve reverse flushing of the valve of the electrochemical regeneration reactor until the high pressure reduction value of the electrochemical regeneration reactor is less than or equal to the preset reduction value. In response to the anode potential value of the electrochemical regeneration reactor being greater than the preset potential value, the first current density is amplified by the third safety factor; The current density amplified by the third safety factor is marked as the reverse target parameter to apply a reverse pulse current to the electrochemical regeneration reactor until the anode potential of the electrochemical regeneration reactor is less than or equal to the preset potential value.

[0096] In some embodiments, the processing module 302 is specifically used to reduce the first seawater flow rate and the first current density by a preset reduction coefficient based on a preset interval time, and record the outlet sulfur dioxide concentration and desulfurization efficiency corresponding to each reduction of seawater flow rate and current density. When the reduced first seawater flow rate and reduced first current density meet the preset backoff conditions, the flow rate and current density are backoffed to the previous reduced flow rate and current density, and marked as the target seawater flow rate and target current density. The preset backoff condition is used to indicate any of the following: the outlet sulfur dioxide concentration is greater than or equal to the preset emission standard limit, or the desulfurization efficiency is less than or equal to the preset efficiency. Based on the target seawater flow rate, the target seawater pump frequency value is determined, and the target seawater pump frequency value and the target current density are marked as target control parameters.

[0097] Figure 4 This is a schematic diagram of the structure of an electronic device provided in an embodiment of this application. The electronic device includes: a processor 402, a communication interface 403, and a bus 404. Optionally, the electronic device may also include a memory 401.

[0098] Processor 402 may implement or execute various exemplary logic blocks, modules, and circuits described in conjunction with the disclosure of this application. Processor 402 may be a central processing unit, a general-purpose processor, a digital signal processor, an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA), or other programmable logic devices, transistor logic devices, hardware components, or any combination thereof. It may implement or execute various exemplary logic blocks, modules, and circuits described in conjunction with the disclosure of this application. Processor 402 may also be a combination of functions implementing computing capabilities, such as a combination including CPU0 and CPU1, a DSP, and a microprocessor.

[0099] The communication interface 403 includes a receiving unit and a transmitting unit, and is used to connect with other devices via a communication network. This communication network can be Ethernet, a wireless access network, a wireless local area network (WLAN), etc.

[0100] The memory 401 may be a read-only memory (ROM) or other type of static storage device capable of storing static information and instructions, random access memory (RAM) or other type of dynamic storage device capable of storing information and instructions, or electrically erasable programmable read-only memory (EEPROM), disk storage medium or other magnetic storage device, or any other medium capable of carrying or storing desired program code in the form of instructions or data structures and accessible by a computer, but is not limited thereto.

[0101] In one possible implementation, the memory 401 can exist independently of the processor 402. The memory 401 can be connected to the processor 402 via a bus 404 and is used to store instructions or program code. When the processor 402 calls the instructions or program code stored in the memory 401, it can implement the adaptive seawater desulfurization method provided in this embodiment of the invention.

[0102] In another possible implementation, the memory 401 can also be integrated with the processor 402.

[0103] Bus 404 can be an extended industry standard architecture (EISA) bus, etc. Bus 404 can be divided into address bus, data bus, control bus, etc. For ease of representation, Figure 4The bus is represented by a single thick line, but this does not mean that there is only one bus or one type of bus.

[0104] Through the above description of the implementation methods, those skilled in the art can clearly understand that, for the sake of convenience and brevity, only the division of the above functional modules is used as an example. In actual applications, the above functions can be assigned to different functional modules as needed, that is, the internal structure of the service calling device can be divided into different functional modules to complete all or part of the functions described above.

[0105] This application also provides a computer-readable storage medium. All or part of the processes in the above method embodiments can be executed by computer instructions instructing related hardware. The program can be stored in the aforementioned computer-readable storage medium, and when executed, it can include the processes of the above method embodiments. The computer-readable storage medium can be any of the foregoing embodiments or memory. The aforementioned computer-readable storage medium can also be an external storage device of the aforementioned service invocation device, such as a plug-in hard drive, smart media card (SMC), secure digital (SD) card, flash card, etc., equipped on the aforementioned service invocation device. Further, the aforementioned computer-readable storage medium can include both internal storage units of the aforementioned service invocation device and external storage devices. The aforementioned computer-readable storage medium is used to store the aforementioned computer program and other programs and data required by the aforementioned service invocation device. The aforementioned computer-readable storage medium can also be used to temporarily store data that has been output or will be output.

[0106] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. An adaptive seawater desulfurization method, characterized in that, The method includes: Acquire modal sensing data; wherein the modal sensing data includes at least one of sulfur dioxide load, seawater turbidity, and operating parameters of the electrochemical regeneration reactor; Based on the modal sensing data, a target control mode is determined; wherein, the target control mode is used to indicate the seawater desulfurization control strategy to be adopted under the scenario adapted to the modal sensing data; Based on the target control mode, target control parameters are generated so that each actuator executes the target control parameters to achieve seawater desulfurization.

2. The adaptive seawater desulfurization method according to claim 1, characterized in that, Determining the target control mode based on the modal sensing data includes: In response to the modal sensing data satisfying a first preset condition, the target control mode is determined to be a security enhancement mode; In response to the modal sensing data satisfying a second preset condition, the target control mode is determined to be an economical operation mode; In response to the modal sensing data not meeting the first preset condition and the second preset condition, the target control mode is determined to be a high-efficiency desulfurization mode.

3. The adaptive seawater desulfurization method according to claim 2, characterized in that, The first preset condition is used to indicate any of the following: the sulfur dioxide load is greater than the first preset load value, the seawater turbidity is greater than the preset turbidity, or the operating parameters of the electrochemical regeneration reactor are greater than the first preset operating parameters; The second preset condition is used to indicate that the sulfur dioxide load is less than the second preset load value, and that the operating parameters of the electrochemical regeneration reactor are less than the second preset operating parameters; Wherein, the first preset load value is greater than the second preset load value, and the first preset operating parameter is greater than the second preset operating parameter.

4. An adaptive seawater desulfurization method according to any one of claims 2 to 3, characterized in that, The generation of target control parameters based on the target control mode includes: Based on the sulfur dioxide load, a first seawater flow rate and a first current density are calculated; wherein, the first seawater flow rate is used to indicate the seawater flow rate neutralized with sulfur dioxide, and the first current density is used to indicate the current intensity used to regulate the efficiency of the electrochemical reaction. In response to the target control mode being the enhanced safety mode, the target control parameters are generated based on the first seawater flow rate and the first current density; In response to the target control mode being the economic operation mode, the target control parameters are generated through a preset energy-saving optimization algorithm; In response to the target control mode being the high-efficiency desulfurization mode, the first seawater flow rate and the first current density are marked as the target control parameters.

5. The adaptive seawater desulfurization method according to claim 4, characterized in that, In response to the target control mode being the enhanced safety mode, the target control parameters are generated based on the first seawater flow rate and the first current density, including: In response to the sulfur dioxide load being greater than the first preset load value, the first seawater flow rate is amplified by a first safety factor; When the seawater turbidity is greater than the preset turbidity, the first seawater flow rate is amplified using a second safety factor method; wherein the first safety factor is greater than the second safety factor. Based on the amplified first seawater flow rate, the target seawater pump frequency value is determined, and the target seawater pump frequency value is marked as the target control parameter; When the operating parameters of the electrochemical regeneration reactor are greater than the first preset operating parameters, a reverse target parameter is determined based on the first seawater flow rate and the first current density, and the reverse target parameter is marked as the target control parameter.

6. The adaptive seawater desulfurization method according to claim 5, characterized in that, When the operating parameters of the electrochemical regeneration reactor are greater than the first preset operating parameters, the reverse target parameters are determined based on the first seawater flow rate and the first current density, including: When the high pressure drop value of the electrochemical regeneration reactor is greater than a preset drop value, the first seawater flow rate is amplified by a third safety factor; wherein the third safety factor is greater than the first safety factor; Based on the seawater flow rate amplified by the third safety factor, the frequency value of the reverse seawater pump is determined, and the frequency value of the reverse seawater pump is marked as the reverse target parameter, so as to achieve reverse flushing of the valve of the electrochemical regeneration reactor until the high pressure reduction value of the electrochemical regeneration reactor is less than or equal to the preset reduction value. In response to the anode potential value of the electrochemical regeneration reactor being greater than the preset potential value, the first current density is amplified by the third safety factor; The current density amplified by the third safety factor is marked as the reverse target parameter to apply a reverse pulse current to the electrochemical regeneration reactor until the anode potential of the electrochemical regeneration reactor is less than or equal to the preset potential value.

7. The adaptive seawater desulfurization method according to claim 4, characterized in that, In response to the target control mode being the economic operation mode, the target control parameters are generated through a preset energy-saving optimization algorithm, including: Based on a preset interval time, the first seawater flow rate and the first current density are reduced by a preset reduction factor, and the outlet sulfur dioxide concentration and desulfurization efficiency are recorded after each reduction in seawater flow rate and current density. When the reduced first seawater flow rate and the reduced first current density meet the preset backoff conditions, the flow rate and current density are backoffed to the previous reduced flow rate and current density, and marked as the target seawater flow rate and target current density. The preset backoff condition is used to indicate either of the following: the outlet sulfur dioxide concentration is greater than or equal to the preset emission standard limit, or the desulfurization efficiency is less than or equal to the preset efficiency. Based on the target seawater flow rate, the target seawater pump frequency value is determined, and the target seawater pump frequency value and the target current density are marked as the target control parameters.

8. An adaptive seawater desulfurization device, characterized in that, include: An acquisition module is used to acquire modal sensing data; wherein the modal sensing data includes at least one of sulfur dioxide load, seawater turbidity, and operating parameters of the electrochemical regeneration reactor; The processing module is used to determine a target control mode based on the modal sensing data; wherein the target control mode is used to indicate the seawater desulfurization control strategy to be adopted under the scenario adapted to the modal sensing data; The processing module is also used to generate target control parameters based on the target control mode, so that each actuator executes the target control parameters to achieve seawater desulfurization.

9. An electronic device, characterized in that, It includes a processor and a memory, the processor being coupled to the memory; the memory is used to store computer instructions, which are loaded and executed by the processor to enable the computer device to implement the adaptive seawater desulfurization method as described in any one of claims 1 to 7.

10. A computer-readable storage medium, characterized in that, The computer-readable storage medium includes computer-executable instructions that, when executed on a computer, cause the computer to perform the adaptive seawater desulfurization method according to any one of claims 1 to 7.

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