Desulfurization oxidation fan centralized control method, device, equipment and storage medium

Abstract

The present application provides a kind of desulfurization oxidation fan centralized control method, device, equipment and storage medium, belong to desulfurization technical field.The method comprises: the flue gas emission parameter of unit is acquired in real time;Based on the first preset algorithm, the oxidation air volume required by corresponding absorption tower is determined according to the flue gas emission parameter of unit;Based on the predicted slurry quality parameter of absorption tower, the oxidation air volume required by the absorption tower is corrected, and the oxidation air distribution volume required by the absorption tower is obtained.The present application calculates the oxidation air volume required by absorption tower through the flue gas emission parameter of unit, then adjusts and corrects the oxidation air volume required by absorption tower through the predicted slurry quality parameter, obtains the oxidation air distribution volume required by absorption tower, and the oxidation air fan transports oxidation air into the absorption tower according to the oxidation air distribution volume required by absorption tower, realizes the centralized accurate distribution of oxidation air volume according to demand, reduces unnecessary air volume output, and further improves the comprehensive power consumption saving rate.

Description

Technical Field

[0001] This invention relates to the field of desulfurization technology, specifically to a centralized control method for desulfurization oxidation fans, a centralized control device for desulfurization oxidation fans, an electronic device, and a computer-readable storage medium. Background Technology

[0002] Limestone / gypsum wet flue gas desulfurization (FGD) is the most commonly used desulfurization process for coal-fired power plant boilers and industrial boilers, with an application rate exceeding 90%. The basic process involves passing flue gas through an absorption tower, where multiple spray layers scrub the gas to capture sulfur dioxide, other acidic gases, and dust. After being captured by the spray slurry, the sulfur dioxide enters the absorption tower slurry through the gas-liquid interface, existing as sulfite. The sulfite is oxidized and crystallizes to form gypsum dihydrate, which is then dehydrated and discharged from the system. Its purity is above 90%, making it a qualified desulfurization byproduct. Forced oxidation of sulfite is necessary to promote the formation of gypsum dihydrate from sulfur dioxide. However, a high sulfite content in the slurry can also hinder sulfur dioxide absorption, thus reducing desulfurization efficiency.

[0003] Therefore, oxidation blowers are an essential piece of equipment in desulfurization systems. However, in actual applications, the sulfite content in the slurry cannot be obtained in a timely and accurate manner, resulting in the inability to properly control the oxidation air delivery volume of the oxidation blower. In this case, excessive oxidation air delivery volume will lead to excessive energy consumption, while insufficient oxidation air delivery volume will result in insufficient oxidation of sulfite, thus reducing desulfurization efficiency. Summary of the Invention

[0004] The purpose of this invention is to provide a centralized control method, device, equipment, and storage medium for desulfurization oxidation fans, thereby solving the problem that the oxidation air delivery volume of existing oxidation fans cannot be reasonably controlled.

[0005] To achieve the above objectives, the present invention provides a centralized control method for desulfurization oxidation fans, the method comprising:

[0006] Real-time acquisition of the unit's flue gas emission parameters;

[0007] Based on the first preset algorithm, the required oxidation air volume of the corresponding absorption tower is determined according to the flue gas emission parameters of the unit.

[0008] Based on the predicted slurry quality parameters of the absorber, the required oxidation air volume of the absorber is adjusted to obtain the required oxidation air distribution volume of the absorber.

[0009] Preferably, the flue gas emission parameters include: flue gas volume, flue gas oxygen content, and sulfur dioxide concentration.

[0010] Preferably, the method further includes: stopping the supply of oxidizing air into the absorption tower based on a first preset condition;

[0011] The first preset conditions include: the oxygen content of the flue gas is greater than the first threshold and the sulfur dioxide concentration at the inlet of the absorption tower is lower than the second threshold.

[0012] Preferably, the oxidation air inlet of the absorption tower is provided with an oxidation air regulating valve, which is used to regulate the flow rate of oxidation air input into the absorption tower;

[0013] The method further includes:

[0014] Obtain the current opening parameters and current flow parameters of the oxidation air regulating damper;

[0015] The opening adjustment signal of the oxidation air regulating valve is determined based on the required oxidation air distribution volume of the absorption tower and the current opening parameters, or the flow adjustment signal of the oxidation air regulating valve is determined based on the required oxidation air distribution volume of the absorption tower and the current flow parameters.

[0016] Preferably, the slurry quality parameters include: sulfite ion concentration;

[0017] Based on the predicted slurry quality parameters of the absorber, the required oxidation air volume for the absorber is adjusted, including:

[0018] Predict the concentration of sulfite ions in the absorption tower;

[0019] Determine whether the predicted concentration of sulfite ions exceeds the preset concentration;

[0020] When the predicted concentration of sulfite ions exceeds the preset concentration, the excess amount of sulfite ion concentration is determined.

[0021] The adjustment amount of the required oxidation air volume for the absorption tower is determined based on the excess concentration of sulfite ions.

[0022] Adjust the required oxidation air volume for the absorber based on the adjustment amount.

[0023] Preferably, predicting the concentration of sulfite ions within the absorption tower includes:

[0024] A predetermined amount of slurry was collected inside the absorption tower as a slurry sample.

[0025] The sulfite ion concentration of the slurry sample was obtained through laboratory analysis, and the analysis time was defined as the time elapsed since the collection of the slurry sample.

[0026] The required oxidation air volume of the absorption tower, flue gas emission parameters, and test duration are input into the trained concentration monitoring model for prediction, and the increase in sulfite ion concentration within the test duration is obtained.

[0027] The concentration of sulfite ions in the absorption tower at the time of test completion is determined based on the increase in sulfite ion concentration and the sulfite ion sampling concentration of the slurry sample. The concentration of sulfite ions in the absorption tower at the time of test completion is used as the predicted concentration of sulfite ions in the absorption tower.

[0028] Preferably, the concentration monitoring model is a long short-term memory network.

[0029] On the other hand, the present invention also provides a centralized control device for desulfurization oxidation fans, used to implement the above-mentioned centralized control method for desulfurization oxidation fans, the device comprising:

[0030] The acquisition module is used to acquire the unit's flue gas emission parameters in real time;

[0031] The calculation module is used to determine the required oxidation air volume of the corresponding absorption tower based on the flue gas emission parameters of the unit, according to the first preset algorithm.

[0032] The correction module is used to correct the required oxidation air volume of the absorption tower based on the predicted slurry quality parameters of the absorption tower, so as to obtain the required oxidation air distribution volume of the absorption tower.

[0033] On the other hand, the present invention also provides an electronic device, including a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the computer program to implement the above-described centralized control method for desulfurization oxidation fans.

[0034] On the other hand, the present invention also provides a computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the above-described centralized control method for desulfurization oxidation fans.

[0035] Through the above technical solution, the present invention has at least the following technical effects:

[0036] This invention first calculates the required oxidation air volume for the absorption tower using the unit's flue gas emission parameters, and then adjusts the required oxidation air volume for the absorption tower using predicted slurry quality parameters to obtain the required oxidation air distribution for the absorption tower. The oxidation blower delivers oxidation air into the absorption tower according to the required oxidation air distribution, realizing the centralized and accurate distribution of oxidation air volume on demand, reducing unnecessary air volume output, and further improving the overall power consumption saving rate. Secondly, the provided oxidation air volume can promptly reduce the sulfite content and improve slurry quality.

[0037] Other features and advantages of the present invention will be described in detail in the following detailed description section. Attached Figure Description

[0038] The accompanying drawings are provided to further illustrate embodiments of the present invention and form part of the specification. They are used together with the following detailed description to explain the embodiments of the present invention, but do not constitute a limitation thereof. In the drawings:

[0039] Figure 1 This is a flowchart of a centralized control method for desulfurization oxidation fans provided in one embodiment of the present invention;

[0040] Figure 2 This is a block diagram of a centralized control device for desulfurization and oxidation fans provided in one embodiment of the present invention. Detailed Implementation

[0041] The specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit the scope of the present invention.

[0042] Figure 1 This is a flowchart of a centralized control method for desulfurization oxidation fans provided in one embodiment of the present invention. It should be noted that in this embodiment, the desulfurization oxidation fans are arranged in a coal-fired power plant. Oxidation fan stations are centrally arranged for all units in the plant, or oxidation fan stations are arranged for every two adjacent units. Each oxidation fan station includes two oxidation fans, configured as one in use and one in standby. The oxidation fans are used to transport oxidation air to the absorption tower. When the output of each oxidation fan meets the total oxidation air volume required by all units, an oxidation air distribution module and a flow transmitter are set at the outlet of the oxidation fan. The flow rate of the oxidation air transported to the absorption tower is adjusted by regulating the oxidation air distribution module and the flow transmitter. By changing the dispersed oxidation fans to oxidation fan stations for the entire plant or adjacent units, under the same design total air volume, the power consumption under maximum output conditions can be reduced by about 30% because a single oxidation fan with a large capacity replaces multiple small capacity oxidation fans.

[0043] like Figure 1 As shown in the figure, this embodiment provides a centralized control method for desulfurization oxidation fans, the method comprising:

[0044] Step S101: Real-time acquisition of the unit's flue gas emission parameters; The flue gas emission parameters in this embodiment include: flue gas volume, flue gas oxygen content and sulfur dioxide concentration, and the sulfur dioxide concentration includes: the sulfur dioxide concentration in the boiler flue gas and the sulfur dioxide concentration at the absorber outlet.

[0045] Step S102: Based on the first preset algorithm, determine the required oxidation air volume of the corresponding absorption tower according to the flue gas emission parameters of the unit;

[0046] In this embodiment, the first preset algorithm is material balance. Material balance is based on the quantitative conversion relationship between raw materials and products to calculate the consumption of raw materials, the output of various intermediate products, products and by-products, and the consumption and composition of each stage in the production process. Therefore, by using material balance, the required oxidation air volume of the absorption tower can be determined based on parameters such as flue gas volume, flue gas oxygen content and sulfur dioxide concentration.

[0047] Secondly, the oxidation air inlet of the absorption tower is equipped with an oxidation air regulating valve, which is used to regulate the flow rate of oxidation air input into the absorption tower.

[0048] Step S103: Based on the predicted slurry quality parameters of the absorption tower, adjust the required oxidation air volume of the absorption tower to obtain the required oxidation air distribution volume of the absorption tower, wherein the slurry quality parameters include: sulfite ion concentration.

[0049] In this embodiment, the required oxidation air volume for the absorption tower, determined by material balance, is the amount needed to completely oxidize sulfite ions under ideal conditions. However, in the actual reaction process, due to the influence of the reaction environment and reaction rate, some oxidation air will not participate in the reaction and will be discharged outside the absorption tower. At this time, as the flue gas is continuously input, the sulfite ions in the slurry of the absorption tower will gradually increase. The higher the concentration of sulfite ions, the more limestone is not completely dissolved and does not participate in the desulfurization chemical reaction during the desulfurization process. This results in poor utilization efficiency of the desulfurizing agent, or poor activity of the desulfurizing agent itself, or deterioration due to inhibition by other harmful components in the slurry.

[0050] Therefore, once the sulfite ion concentration in the slurry increases to a certain level, it is necessary to increase the oxidation air volume input into the absorption tower and to monitor the sulfite ion concentration in the slurry. However, in existing detection methods, the sulfite ion concentration can only be obtained through on-site sampling and analysis by laboratory personnel. The sulfite ion concentration obtained through analysis has a time lag. In other words, a certain amount of time is required for slurry sampling and analysis, during which the sulfite ion concentration will continue to increase. After the analysis is completed, the actual sulfite ion concentration in the slurry is greater than the sulfite ion concentration obtained from the analysis.

[0051] In order to accurately obtain the sulfite ion concentration, in this embodiment, based on the predicted slurry quality parameters of the absorber, the required oxidation air volume of the absorber is adjusted, including:

[0052] Step a01: Predict the concentration of sulfite ions in the absorption tower;

[0053] Specifically, in this step, predicting the concentration of sulfite ions within the absorption tower includes:

[0054] Step a0101: Collect a preset amount of slurry in the absorption tower as a slurry sample; in this embodiment, a sampling device can be used to extract a certain amount of slurry in the absorption tower as a slurry sample.

[0055] Step a0102: The sulfite ion sampling concentration of the slurry sample is obtained through laboratory analysis, and the analysis time is the time elapsed since the slurry sample was collected. After the slurry sample is transported from the sampling device to the testing device, the sulfite ion sampling concentration of the slurry sample at the sampling time is analyzed. In this embodiment, the analysis time is the difference between the time of completion of the analysis and the time of sampling.

[0056] Step a0103: Input the required oxidation air volume of the absorption tower, flue gas emission parameters and test duration into the trained concentration monitoring model for prediction, and obtain the increase in sulfite ion concentration within the test duration;

[0057] The concentration monitoring model in this embodiment preferably employs a long short-term memory network. When selecting training samples for the concentration monitoring model, flue gas and oxidation air can be introduced into the absorption tower at set times under the conditions of set flue gas volume, flue gas oxygen content, sulfur dioxide concentration, and corresponding oxidation air flow rate. At different time periods, the introduction of flue gas and oxidation air into the absorption tower is stopped, and the sulfite ion concentration is measured at this time. The above process is used as a training sample, and after obtaining a sufficient number of training samples under different conditions, the concentration monitoring model is trained.

[0058] After training the concentration monitoring model, the required oxidation air volume of the absorption tower, flue gas emission parameters, and test duration are used as test samples and input into the concentration monitoring model for prediction. This allows the model to predict the increase in sulfite ion concentration within the test duration.

[0059] Step a0104: Determine the sulfite ion concentration in the absorption tower at the time of test completion based on the increase in sulfite ion concentration and the sulfite ion sampling concentration of the slurry sample. Use the sulfite ion concentration in the absorption tower at the time of test completion as the predicted concentration of sulfite ions in the absorption tower. In this embodiment, the sulfite ion concentration in the absorption tower at the time of test completion is the sum of the increase in sulfite ion concentration and the sulfite ion sampling concentration of the slurry sample. At this time, an accurate predicted concentration of sulfite ions can be obtained, which can reduce the impact of the time lag caused by the test on the concentration detection and improve the accuracy of the predicted concentration of sulfite ions.

[0060] Step a02: Determine whether the predicted concentration of sulfite ions exceeds the preset concentration;

[0061] Step a03: When the predicted concentration of sulfite ions exceeds the preset concentration, determine the amount of sulfite ion concentration exceeding the preset concentration;

[0062] Step a04: Determine the adjustment amount of the required oxidation air volume for the absorption tower based on the excess sulfite ion concentration;

[0063] Step a05: Adjust the required oxidation air volume for the absorption tower according to the adjustment amount.

[0064] The control method in this embodiment effectively adjusts the air volume of each absorption tower. When the slurry quality deteriorates, a special high-oxygen mode can be activated to increase the oxygen supply to the absorption tower and quickly improve the slurry quality.

[0065] Secondly, the centralized and on-demand allocation of oxidation air volume reduces unnecessary air volume output, further improving the overall power consumption saving rate.

[0066] As a further optimization of this embodiment, the method further includes: stopping the supply of oxidizing air into the absorption tower based on a first preset condition;

[0067] The first preset conditions include: the oxygen content of the flue gas is greater than the first threshold and the sulfur dioxide concentration at the inlet of the absorption tower is lower than the second threshold.

[0068] For example: the oxygen content in the flue gas is higher than 7%, and the concentration at the inlet of the absorption tower is lower than 1200 mg / Nm³. 3 When necessary, the absorption tower can stop supplying oxygen, thus achieving complementarity between the oxygen content in the flue gas and the oxygen content in the oxidation fan.

[0069] As a further optimization of this embodiment, the method further includes:

[0070] Step b01: Obtain the current opening parameters and current flow parameters of the oxidation air regulating damper;

[0071] Step b02: Determine the opening adjustment signal of the oxidation air regulating valve based on the required oxidation air distribution volume of the absorption tower and the current opening parameters, or determine the flow adjustment signal of the oxidation air regulating valve based on the required oxidation air distribution volume of the absorption tower and the current flow parameters.

[0072] In this embodiment, the flow rate of the oxidation air input into the absorption tower is adjusted by controlling the opening of the oxidation air regulating valve.

[0073] Figure 2 This is a block diagram of a centralized control device for desulfurization and oxidation fans provided in one embodiment of the present invention, as shown below. Figure 2 As shown, based on the same inventive concept as Embodiment 1, this embodiment also provides a centralized control device for desulfurization oxidation fans. The device is used to implement the centralized control method for desulfurization oxidation fans in Embodiment 1. The device includes:

[0074] The acquisition module is used to acquire the unit's flue gas emission parameters in real time;

[0075] The calculation module is used to determine the required oxidation air volume of the corresponding absorption tower based on the flue gas emission parameters of the unit, according to the first preset algorithm.

[0076] The correction module is used to correct the required oxidation air volume of the absorption tower based on the predicted slurry quality parameters of the absorption tower, so as to obtain the required oxidation air distribution volume of the absorption tower.

[0077] This invention first calculates the required oxidation air volume for the absorption tower using the unit's flue gas emission parameters, and then adjusts the required oxidation air volume for the absorption tower using predicted slurry quality parameters to obtain the required oxidation air distribution for the absorption tower. The oxidation blower delivers oxidation air into the absorption tower according to the required oxidation air distribution, realizing the centralized and accurate distribution of oxidation air volume on demand, reducing unnecessary air volume output, and further improving the overall power consumption saving rate. Secondly, the provided oxidation air volume can promptly reduce the sulfite content and improve slurry quality.

[0078] Based on the same inventive concept as Embodiment 1, this embodiment also provides an electronic device, including a memory, a processor, and a computer program stored in the memory and executable on the processor. When the processor executes the computer program, it implements the above-described centralized control method for desulfurization oxidation fans.

[0079] Based on the same inventive concept as Embodiment 1, this embodiment also provides a computer-readable storage medium storing a computer program thereon, which, when executed by a processor, implements the above-described centralized control method for desulfurization and oxidation fans.

[0080] Those skilled in the art will understand that embodiments of this application can be provided as methods, systems, or computer program products. Therefore, this application can take the form of a completely hardware embodiment, a completely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, this application can take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0081] This application is described with reference to flowchart illustrations and / or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of this application. It will be understood that each block of the flowchart illustrations and / or block diagrams, and combinations of blocks in the flowchart illustrations and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, special-purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, generate instructions for implementing the flowchart... Figure 1 One or more processes and / or boxes Figure 1 A device that provides the functions specified in one or more boxes.

[0082] These computer program instructions may also be stored in a computer-readable storage medium that can direct a computer or other programmable data processing device to function in a particular manner, such that the instructions stored in the computer-readable storage medium produce an article of manufacture including instruction means, which are implemented in a process Figure 1 One or more processes and / or boxes Figure 1 The function specified in one or more boxes.

[0083] These computer program instructions may also be loaded onto a computer or other programmable data processing equipment to cause a series of operational steps to be performed on the computer or other programmable equipment to produce a computer-implemented process, thereby providing instructions that execute on the computer or other programmable equipment for implementing the process. Figure 1 One or more processes and / or boxes Figure 1 The steps of the function specified in one or more boxes.

[0084] In a typical configuration, a computing device includes one or more processors (CPU), input / output interfaces, network interfaces, and memory.

[0085] Memory may include non-persistent memory in computer-readable media, such as random access memory (RAM) and / or non-volatile memory, like read-only memory (ROM) or flash RAM. Memory is an example of computer-readable media.

[0086] Computer-readable media includes both permanent and non-permanent, removable and non-removable media that can store information using any method or technology. Information can be computer-readable instructions, data structures, modules of programs, or other data. Examples of computer storage media include, but are not limited to, phase-change memory (PRAM), static random access memory (SRAM), dynamic random access memory (DRAM), other types of random access memory (RAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), flash memory or other memory technologies, CD-ROM, digital versatile optical disc (DVD) or other optical storage, magnetic tape, magnetic magnetic disk storage or other magnetic storage devices, or any other non-transferable medium that can be used to store information accessible by a computing device. As defined herein, computer-readable media does not include transient computer-readable media, such as modulated data signals and carrier waves.

[0087] It should also be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.

[0088] The above are merely embodiments of this application and are not intended to limit the scope of this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of the claims of this application.

Claims

1. A centralized control method for desulfurization oxidation fans, characterized in that, The method includes: Real-time acquisition of the unit's flue gas emission parameters; Based on the first preset algorithm, the required oxidation air volume of the corresponding absorption tower is determined according to the flue gas emission parameters of the unit. Based on the predicted slurry quality parameters of the absorber, the required oxidation air volume for the absorber is adjusted to obtain the required oxidation air distribution volume for the absorber. The specific process includes the following steps: A predetermined amount of slurry was collected inside the absorption tower as a slurry sample. The sulfite ion concentration of the slurry sample was obtained through laboratory analysis, and the analysis time was defined as the time elapsed since the collection of the slurry sample. The required oxidation air volume of the absorption tower, flue gas emission parameters, and test duration are input into the trained concentration monitoring model for prediction, and the increase in sulfite ion concentration within the test duration is obtained. The concentration of sulfite ions in the absorption tower at the time of test completion is determined based on the increase in sulfite ion concentration and the sulfite ion sampling concentration of the slurry sample. The concentration of sulfite ions in the absorption tower at the time of test completion is used as the predicted concentration of sulfite ions in the absorption tower. Determine whether the predicted concentration of sulfite ions in the absorption tower exceeds the preset concentration; When the predicted concentration of sulfite ions in the absorption tower exceeds the preset concentration, the excess amount of sulfite ion concentration is determined. The adjustment amount of the required oxidation air volume for the absorption tower is determined based on the excess concentration of sulfite ions. Adjust the required oxidation air volume for the absorber based on the adjustment amount.

2. The method according to claim 1, characterized in that, The flue gas emission parameters include: flue gas volume, flue gas oxygen content, and sulfur dioxide concentration.

3. The method according to claim 2, characterized in that, The absorption tower is equipped with an oxidation air regulating valve at the oxidation air input end, which is used to regulate the flow rate of oxidation air input into the absorption tower. The method further includes: Obtain the current opening parameters and current flow parameters of the oxidation air regulating damper; The opening adjustment signal of the oxidation air regulating valve is determined based on the required oxidation air distribution volume of the absorption tower and the current opening parameters, or the flow adjustment signal of the oxidation air regulating valve is determined based on the required oxidation air distribution volume of the absorption tower and the current flow parameters.

4. The method according to claim 3, characterized in that, The method further includes: stopping the supply of oxidizing air into the absorption tower based on a first preset condition; The first preset conditions include: the oxygen content of the flue gas is greater than the first threshold and the sulfur dioxide concentration at the inlet of the absorption tower is lower than the second threshold.

5. The method according to claim 1, characterized in that, The concentration monitoring model is a long short-term memory network.

6. A centralized control device for desulfurization oxidation fans, used to implement the centralized control method for desulfurization oxidation fans according to any one of claims 1-5, characterized in that, The device includes: The acquisition module is used to acquire the unit's flue gas emission parameters in real time; The calculation module is used to determine the required oxidation air volume of the corresponding absorption tower based on the flue gas emission parameters of the unit, according to the first preset algorithm. The correction module is used to correct the required oxidation air volume for the absorber based on the predicted slurry quality parameters, thus obtaining the required oxidation air distribution for the absorber. Specifically, the process includes the following steps: A predetermined amount of slurry was collected inside the absorption tower as a slurry sample. The sulfite ion concentration of the slurry sample was obtained through laboratory analysis, and the analysis time was defined as the time elapsed since the collection of the slurry sample. The required oxidation air volume of the absorption tower, flue gas emission parameters, and test duration are input into the trained concentration monitoring model for prediction, and the increase in sulfite ion concentration within the test duration is obtained. The concentration of sulfite ions in the absorption tower at the time of test completion is determined based on the increase in sulfite ion concentration and the sulfite ion sampling concentration of the slurry sample. The concentration of sulfite ions in the absorption tower at the time of test completion is used as the predicted concentration of sulfite ions in the absorption tower. Determine whether the predicted concentration of sulfite ions in the absorption tower exceeds the preset concentration; When the predicted concentration of sulfite ions in the absorption tower exceeds the preset concentration, the excess amount of sulfite ion concentration is determined. The adjustment amount of the required oxidation air volume for the absorption tower is determined based on the excess concentration of sulfite ions. Adjust the required oxidation air volume for the absorber based on the adjustment amount.

7. An electronic device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that, When the processor executes the computer program, it implements the centralized control method for desulfurization oxidation fans as described in any one of claims 1-5.

8. A computer-readable storage medium having a computer program stored thereon, characterized in that, When the program is executed by the processor, it implements the centralized control method for desulfurization oxidation fans as described in any one of claims 1-5.

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