Boiler waste gas blending combustion control method and device, storage medium and electronic equipment

Abstract

The invention relates to a boiler waste gas blending combustion control method and device, a storage medium and electronic equipment, and the method comprises the steps that the air inlet amount and the waste gas blending combustion amount of a boiler are input into a boiler reaction model obtained through pre-training, and first boiler reaction parameters output by the boiler reaction model are obtained; under the condition that the first boiler reaction parameter does not meet the pollutant emission control condition, the position of an exhaust gas blending combustion inlet in the boiler reaction model is adjusted, and the air inlet amount and the exhaust gas blending combustion amount are adjusted; the adjusted air inlet amount and the adjusted waste gas blending combustion amount are input into the adjusted boiler reaction model, and second boiler reaction parameters output by the boiler reaction model are obtained; and under the condition that the second boiler reaction parameter meets the pollutant emission control condition, the air inlet amount and the waste gas blending combustion amount flowing into the boiler are controlled according to the adjusted waste gas blending combustion inlet position, the air inlet amount and the waste gas blending combustion amount.

Description

Technical Field

[0001] The present disclosure relates to the technical field of boilers, and in particular to a method, device, storage medium and electronic equipment for controlling the co-combustion of boiler exhaust gas. Background Art

[0002] Currently, chemical plants generate low-calorific-value waste gas during production. Burning this waste gas directly through flares wastes energy and pollutes the environment. Therefore, the waste gas is typically directed into a circulating fluidized bed boiler for disposal.

[0003] However, when exhaust gas enters the boiler, it will affect the temperature distribution inside the boiler bed and the flow of coal particles, affecting the coal combustion process. At the same time, the addition of exhaust gas may also affect the concentration of boiler emissions, causing environmental pollution. Summary of the Invention

[0004] In order to solve the above problems, the present disclosure provides a boiler exhaust gas co-combustion control method, device, storage medium and electronic equipment.

[0005] According to a first aspect of an embodiment of the present disclosure, a method for controlling the co-combustion of boiler exhaust gas is provided, the method comprising: The air intake volume and exhaust gas co-combustion volume of the boiler are input into a pre-trained boiler reaction model to obtain a first boiler reaction parameter output by the boiler reaction model; when the first boiler reaction parameter does not meet the pollutant emission control conditions, the inlet position of the exhaust gas co-combustion in the boiler reaction model is adjusted, as well as the air intake volume and the exhaust gas co-combustion volume; the adjusted air intake volume and the exhaust gas co-combustion volume are input into the adjusted boiler reaction model to obtain a second boiler reaction parameter output by the boiler reaction model; when the second boiler reaction parameter meets the pollutant emission control conditions, the air intake volume and the exhaust gas co-combustion volume flowing into the boiler are controlled according to the adjusted inlet position of the exhaust gas co-combustion, the air intake volume and the exhaust gas co-combustion volume.

[0006] Optionally, the boiler reaction parameters include the nitrogen oxide concentration, carbon monoxide concentration and fly ash carbon content after the boiler completes the reaction, and the temperature value at the upper secondary air inlet of the boiler; the pollutant emission control conditions include: the difference between the temperature value and the preset temperature value is within a preset difference range; the nitrogen oxide concentration is less than or equal to the preset nitrogen oxide concentration threshold; the carbon monoxide concentration is less than or equal to the preset carbon monoxide concentration threshold; and the fly ash carbon content is less than or equal to the preset fly ash carbon content threshold.

[0007] Optionally, the air intake volume includes the primary air intake volume of the fluidizing air inlet of the boiler, the upper secondary air intake volume of the upper secondary air inlet of the boiler, and the lower secondary air intake volume of the lower secondary air inlet of the boiler; the adjustment of the air intake volume and the exhaust gas co-combustion amount includes: when the difference between the temperature value and the preset temperature value is not within the preset difference range, adjusting the primary air intake volume according to a first preset adjustment value; when the nitrogen oxide concentration is greater than the preset nitrogen oxide concentration threshold or the carbon monoxide concentration is greater than the preset carbon monoxide concentration threshold, increasing the upper secondary air intake volume and the exhaust gas co-combustion amount according to a second preset adjustment value; when the fly ash carbon content is greater than the preset fly ash carbon content threshold, increasing the lower secondary air intake volume according to a third preset adjustment value.

[0008] Optionally, when the difference between the temperature value and the preset temperature value is not within the preset difference range, adjusting the primary air intake volume according to the first preset adjustment value includes: if the temperature value is greater than the preset temperature value, reducing the primary air intake volume according to the first preset adjustment value; or, if the temperature value is less than the preset temperature value, increasing the primary air intake volume according to the first preset adjustment value.

[0009] Optionally, the inlet position of the exhaust gas co-combustion includes at least one of the upper secondary air inlets; the upper secondary air inlet includes a first type of upper secondary air inlet located on the first wall and a second type of upper secondary air inlet located on the second wall; the temperature value at the upper secondary air inlet of the boiler includes a first average temperature of the first type of upper secondary air inlet and a second average temperature of the second type of upper secondary air inlet; adjusting the inlet position of the exhaust gas co-combustion in the boiler reaction model includes: adjusting the inlet position of the exhaust gas co-combustion from the upper secondary air inlet according to the difference between the first average temperature and the second average temperature.

[0010] Optionally, the method also includes: when the second boiler reaction parameters do not meet the pollutant emission control conditions, repeatedly performing the steps of adjusting the inlet position of the exhaust gas co-combustion in the boiler reaction model, and adjusting the air intake volume and the exhaust gas co-combustion amount until the adjusted air intake volume and the exhaust gas co-combustion amount are input into the adjusted boiler reaction model to obtain the second boiler reaction parameters output by the boiler reaction model, until the obtained second boiler reaction parameters meet the pollutant emission control conditions.

[0011] Optionally, the boiler reaction model is pre-trained in the following manner: grid modeling the boiler to obtain a grid model corresponding to the boiler; model training the grid model based on historical boiler reaction parameters, historical air intake volume and historical exhaust gas blending volume corresponding to the boiler to obtain the boiler reaction model.

[0012] According to a second aspect of an embodiment of the present disclosure, a boiler exhaust gas co-combustion control device is provided, the device comprising: a determination module, configured to input the air intake rate and exhaust gas blending rate of the boiler into a pre-trained boiler reaction model to obtain a first boiler reaction parameter output by the boiler reaction model; an adjustment module, configured to adjust the inlet position of the exhaust gas co-combustion in the boiler reaction model, and adjust the air intake volume and the exhaust gas co-combustion volume when the first boiler reaction parameter does not meet the pollutant emission control condition; The determining module is further configured to input the adjusted air intake volume and the exhaust gas blending volume into the adjusted boiler reaction model to obtain a second boiler reaction parameter output by the boiler reaction model; A control module is used to control the air intake and exhaust gas co-combustion amount flowing into the boiler according to the adjusted exhaust gas co-combustion inlet position, air intake and exhaust gas co-combustion amount when the reaction parameters of the second boiler meet the pollutant emission control conditions.

[0013] Optionally, the boiler reaction parameters include the nitrogen oxide concentration, carbon monoxide concentration and fly ash carbon content after the boiler completes the reaction, and the temperature value at the upper secondary air inlet of the boiler; the pollutant emission control conditions include: the difference between the temperature value and the preset temperature value is within a preset difference range; the nitrogen oxide concentration is less than or equal to the preset nitrogen oxide concentration threshold; the carbon monoxide concentration is less than or equal to the preset carbon monoxide concentration threshold; and the fly ash carbon content is less than or equal to the preset fly ash carbon content threshold.

[0014] Optionally, the air intake volume includes the primary air intake volume of the fluidizing air inlet of the boiler, the upper secondary air intake volume of the upper secondary air inlet of the boiler, and the lower secondary air intake volume of the lower secondary air inlet of the boiler; the adjustment module is used to adjust the primary air intake volume according to a first preset adjustment value when the difference between the temperature value and the preset temperature value is not within a preset difference range; increase the upper secondary air intake volume and the exhaust gas co-combustion amount according to a second preset adjustment value when the nitrogen oxide concentration is greater than a preset nitrogen oxide concentration threshold or the carbon monoxide concentration is greater than a preset carbon monoxide concentration threshold; increase the lower secondary air intake volume according to a third preset adjustment value when the fly ash carbon content is greater than a preset fly ash carbon content threshold.

[0015] Optionally, the adjustment module is used to reduce the primary air intake volume according to a first preset adjustment value if the temperature value is greater than the preset temperature value; or to increase the primary air intake volume according to the first preset adjustment value if the temperature value is less than the preset temperature value.

[0016] Optionally, the inlet position of the exhaust gas co-combustion includes at least one of the upper secondary air inlets; the upper secondary air inlet includes a first type of upper secondary air inlet located on the first wall and a second type of upper secondary air inlet located on the second wall; the temperature value at the upper secondary air inlet of the boiler includes a first average temperature of the first type of upper secondary air inlet and a second average temperature of the second type of upper secondary air inlet; the adjustment module is used to adjust the inlet position of the exhaust gas co-combustion from the upper secondary air inlet according to the difference between the first average temperature and the second average temperature.

[0017] Optionally, the adjustment module is also used to repeatedly execute the steps of adjusting the inlet position of the exhaust gas co-combustion in the boiler reaction model and adjusting the air intake volume and the exhaust gas co-combustion amount until the adjusted air intake volume and the exhaust gas co-combustion amount are input into the adjusted boiler reaction model to obtain the second boiler reaction parameters output by the boiler reaction model, when the second boiler reaction parameters do not meet the pollutant emission control conditions, until the obtained second boiler reaction parameters meet the pollutant emission control conditions.

[0018] Optionally, the device also includes: a model training module, used to perform grid modeling on the boiler to obtain a grid model corresponding to the boiler; and perform model training on the grid model according to historical boiler reaction parameters, historical air intake volume and historical exhaust gas blending volume corresponding to the boiler to obtain the boiler reaction model.

[0019] According to a third aspect of an embodiment of the present disclosure, a computer-readable storage medium is provided, on which computer program instructions are stored. When the program instructions are executed by a processor, the steps of the boiler exhaust gas co-combustion control method provided in the first aspect of the present disclosure are implemented.

[0020] According to a fourth aspect of the embodiments of the present disclosure, there is provided an electronic device, including: a memory having a computer program stored thereon; A processor is used to execute the computer program in the memory to implement the steps of the boiler exhaust gas co-combustion control method described in the first aspect of the present disclosure.

[0021] According to the above technical solution, the air intake and exhaust gas co-combustion amount of the boiler are input into a pre-trained boiler reaction model to obtain a first boiler reaction parameter output by the boiler reaction model. If the first boiler reaction parameter does not meet the pollutant emission control conditions, the exhaust gas co-combustion inlet position in the boiler reaction model is adjusted, as well as the air intake and exhaust gas co-combustion amount. The adjusted air intake and exhaust gas co-combustion amount are input into the adjusted boiler reaction model to obtain a second boiler reaction parameter output by the boiler reaction model. If the second boiler reaction parameter meets the pollutant emission control conditions, the air intake and exhaust gas co-combustion amount flowing into the boiler are controlled according to the adjusted exhaust gas co-combustion inlet position, air intake and exhaust gas co-combustion amount. In this way, the reaction parameters of the boiler are predicted by the boiler reaction model, which can fully reflect the temperature distribution inside the boiler and the flow conditions of the coal particles during the operation of the boiler, making the prediction of the reaction parameters more accurate. According to the predicted boiler reaction parameters, the exhaust gas co-combustion inlet position is adjusted, and the air intake and exhaust gas co-combustion amount flowing into the boiler are controlled, providing a theoretical basis for actual boiler operation, and can control the concentration of subsequent boiler emissions and reduce environmental pollution.

[0022] Other features and advantages of the present disclosure will be described in detail in the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The accompanying drawings are used to provide a further understanding of the present disclosure and constitute a part of the specification. Together with the following detailed description, they are used to explain the present disclosure but do not constitute a limitation of the present disclosure. In the accompanying drawings: Figure 1 The present invention is a flow chart showing a method for controlling the co-combustion of boiler exhaust gas according to an exemplary embodiment.

[0024] Figure 2 The figure is a flow chart of another boiler exhaust gas co-combustion control method according to an exemplary embodiment.

[0025] Figure 3 The present invention is a block diagram of a boiler exhaust gas co-combustion control device according to an exemplary embodiment.

[0026] Figure 4 It is a block diagram of another boiler exhaust gas co-combustion control device according to an exemplary embodiment.

[0027] Figure 5 is a block diagram of an electronic device provided according to an exemplary embodiment of the present disclosure. DETAILED DESCRIPTION

[0028] The following describes the specific embodiments of the present disclosure in detail with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only used to illustrate and explain the present disclosure and are not intended to limit the present disclosure.

[0029] In the description below, words such as “first” and “second” are only used for the purpose of distinguishing the description and should not be understood as indicating or implying relative importance or order.

[0030] First, the application scenario of the present disclosure is explained. The present disclosure is applied to the scenario of controlling the co-combustion of boiler exhaust gas. In this scenario, the boiler can be a circulating fluidized bed boiler. The structure of the circulating fluidized bed boiler can include a water-cooled wall, at least two cyclone separators, a fluidizing air inlet for inputting primary air, an upper secondary air inlet for inputting upper secondary air, a lower secondary air inlet for inputting lower secondary air, an insulating wall and a coal feeding port. The low calorific value exhaust gas enters the boiler furnace together with the upper secondary air through the upper secondary air inlet to complete the exhaust gas co-combustion.

[0031] Chemical plants generate low-calorific-value waste gas during their production processes. Burning this waste gas directly through flares wastes energy and pollutes the environment. Therefore, the waste gas is typically introduced into a circulating fluidized bed boiler for disposal. However, the entry of waste gas into the boiler affects the temperature distribution within the bed and the flow of coal particles, impacting the coal combustion process. Furthermore, the addition of waste gas can affect the concentration of boiler emissions, causing environmental pollution.

[0032] In order to solve the above problems, the present disclosure provides a boiler exhaust gas co-combustion control method, device, storage medium and electronic device, which can input the air intake volume and exhaust gas co-combustion amount of the boiler into a pre-trained boiler reaction model to obtain a first boiler reaction parameter output by the boiler reaction model, and when the obtained first boiler reaction parameter does not meet the pollutant emission control conditions, adjust the inlet position of the exhaust gas co-combustion in the boiler reaction model, and adjust the air intake volume and exhaust gas co-combustion amount, and input the adjusted air intake volume and exhaust gas co-combustion amount into the adjusted boiler reaction model to obtain a second boiler reaction parameter output by the boiler reaction model, and when the second boiler reaction parameter meets the pollutant emission control conditions, control the air intake volume and exhaust gas co-combustion amount flowing into the boiler according to the adjusted inlet position of the exhaust gas co-combustion, air intake volume and exhaust gas co-combustion amount. In this way, by predicting the reaction parameters of the boiler through the boiler reaction model, the internal temperature distribution of the boiler and the flow conditions of the coal particles during boiler operation can be fully reflected, making the prediction of the reaction parameters more accurate. According to the predicted boiler reaction parameters, the inlet position of the exhaust gas co-combustion is adjusted, and the air intake volume and exhaust gas co-combustion amount flowing into the boiler are controlled, providing a theoretical basis for the actual operation of the boiler, and being able to control the concentration of subsequent boiler emissions and reduce environmental pollution.

[0033] Figure 1 FIG. 1 is a flow chart showing a method for controlling the co-combustion of boiler exhaust gas according to an exemplary embodiment. Figure 1 As shown, the method may include: S101. Input the air intake volume and exhaust gas blending volume of the boiler into a pre-trained boiler reaction model to obtain a first boiler reaction parameter output by the boiler reaction model.

[0034] The air intake volume may include the primary air intake volume of the fluidizing air inlet of the boiler, the upper secondary air intake volume of the upper secondary air inlet of the boiler, and the lower secondary air intake volume of the lower secondary air inlet of the boiler. The primary air is used to control the combustion of coal, and the upper secondary air and the lower secondary air are used to control the concentration of boiler pollutant emissions. The waste gas co-combustion volume may include the co-combustion volume of low-calorific value waste gas generated in chemical production in the boiler. The low-calorific value waste gas generated in chemical production can be mixed with the upper secondary air for co-combustion. The components of the low-calorific value waste gas may include one or more of carbon monoxide, carbon dioxide, hydrocarbons, hydrogen sulfide, and ammonia. The ratio of the waste gas co-combustion volume to the upper secondary air intake volume can be predetermined by combining historical data and experiments, and the present disclosure does not make specific limitations on this.

[0035] S102. When the first boiler reaction parameter does not meet the pollutant emission control conditions, adjust the inlet position of the exhaust gas co-combustion in the boiler reaction model, and adjust the air intake volume and the exhaust gas co-combustion volume.

[0036] For example, the exhaust gas co-combustion inlet position can be adjusted at the boiler's upper secondary air inlet. The air intake volume can also be adjusted by adjusting the openings of the fluidizing air inlet, upper secondary air inlet, and lower secondary air inlet. The air intake volume can also be adjusted by adjusting the speeds of the induced draft fans corresponding to the fluidizing air, upper secondary air, and lower secondary air fans, though this disclosure is not limited to these.

[0037] S103: Input the adjusted air intake volume and the exhaust gas blending volume into the adjusted boiler reaction model to obtain a second boiler reaction parameter output by the boiler reaction model.

[0038] S104. When the reaction parameters of the second boiler meet the pollutant emission control conditions, the air intake volume and the exhaust gas co-combustion volume flowing into the boiler are controlled according to the adjusted exhaust gas co-combustion inlet position, air intake volume and exhaust gas co-combustion volume.

[0039] For example, the adjusted primary air intake volume, upper secondary air intake volume and lower secondary air intake volume can be determined as the air intake volume flowing into the boiler, and the adjusted exhaust gas co-combustion volume in the upper secondary air can be determined as the exhaust gas co-combustion volume flowing into the boiler.

[0040] By adopting the above method, the air intake volume and exhaust gas co-combustion volume of the boiler can be input into the pre-trained boiler reaction model to obtain the first boiler reaction parameter output by the boiler reaction model. When the obtained first boiler reaction parameter does not meet the pollutant emission control conditions, the inlet position of the exhaust gas co-combustion in the boiler reaction model is adjusted, and the air intake volume and exhaust gas co-combustion volume are adjusted. The adjusted air intake volume and exhaust gas co-combustion volume are input into the adjusted boiler reaction model to obtain the second boiler reaction parameter output by the boiler reaction model. When the second boiler reaction parameter meets the pollutant emission control conditions, the air intake volume and exhaust gas co-combustion volume flowing into the boiler are controlled according to the adjusted inlet position of the exhaust gas co-combustion, air intake volume and exhaust gas co-combustion volume. In this way, by predicting the reaction parameters of the boiler through the boiler reaction model, the internal temperature distribution of the boiler and the flow conditions of the coal particles during boiler operation can be fully reflected, making the prediction of the reaction parameters more accurate. According to the predicted boiler reaction parameters, the inlet position of the exhaust gas co-combustion is adjusted, and the air intake volume and exhaust gas co-combustion amount flowing into the boiler are controlled, providing a theoretical basis for the actual operation of the boiler, and being able to control the concentration of subsequent boiler emissions and reduce environmental pollution.

[0041] In some embodiments, the boiler reaction parameters may include the nitrogen oxide concentration, carbon monoxide concentration and fly ash carbon content after the boiler completes the reaction, as well as the temperature value at the upper secondary air inlet of the boiler; the pollutant emission control conditions may include: the difference between the temperature value and the preset temperature value is within a preset difference range; the nitrogen oxide concentration is less than or equal to the preset nitrogen oxide concentration threshold; the carbon monoxide concentration is less than or equal to the preset carbon monoxide concentration threshold; and the fly ash carbon content is less than or equal to the preset fly ash carbon content threshold.

[0042] For example, while satisfying , , ,as well as Under the condition of , the boiler reaction parameters are determined to meet the pollutant emission control conditions, where is the average temperature value at multiple upper secondary air inlets of the boiler, is the preset temperature value, is the lower limit of the preset difference range, a is the upper limit of the preset difference range, is the nitrogen oxide concentration, is the preset nitrogen oxide concentration threshold, is the carbon monoxide concentration, For the preset carbon monoxide concentration threshold, is the carbon content of the fly ash, A fly ash carbon content threshold is preset for this. 、 、 、 and The value of can be obtained by combining historical data and through experimental measurement, and this disclosure does not limit this.

[0043] In some embodiments, the above-mentioned step S102 may include: when the difference between the temperature value and the preset temperature value is not within the preset difference range, adjusting the primary air intake according to the first preset adjustment value; when the nitrogen oxide concentration is greater than the preset nitrogen oxide concentration threshold or the carbon monoxide concentration is greater than the preset carbon monoxide concentration threshold, increasing the upper secondary air intake and the exhaust gas co-combustion amount according to the second preset adjustment value; when the fly ash carbon content is greater than the preset fly ash carbon content threshold, increasing the lower secondary air intake according to the third preset adjustment value.

[0044] For example, in the case of or In the case of , adjust the primary air intake , to increase or decrease the temperature at the upper secondary air inlet, where is the temperature value, is the preset temperature value, is the lower limit of the preset difference range, and a is the upper limit of the preset difference range. In this case, the concentration of nitrogen oxides after the boiler reaction is too high, so the secondary air intake volume The value of To reduce the concentration of nitrogen oxides after boiler reaction, is the nitrogen oxide concentration, is the preset nitrogen oxide concentration threshold, is the second preset adjustment value, or In this case, the carbon monoxide concentration after the boiler reaction is too high, so increase the secondary air intake The value of To reduce the carbon monoxide concentration after the boiler reaction, is the carbon monoxide concentration, The preset carbon monoxide concentration threshold is set, and the secondary air intake volume is increased. In the process, the amount of waste gas mixed with combustion Increase synchronously according to the preset ratio, for example, whenever the secondary air intake volume Increase The amount of waste gas mixed combustion Synchronous increase ( ), The value of can be determined in advance by combining historical data and experiments, and this disclosure does not make any specific restrictions on this. In this case, the carbon content of fly ash after boiler reaction is high, so the secondary air intake volume should be reduced. The value of To reduce the carbon content of fly ash after boiler reaction, is the carbon content of the fly ash, For the preset fly ash carbon content threshold, is the third preset adjustment value. 、 and The value of can be obtained by combining historical data and through experimental measurement, and this disclosure does not limit this.

[0045] The above technical solution can adjust the primary air intake volume according to the model output value of the temperature at the upper secondary air inlet, adjust the upper secondary air intake volume and the exhaust gas blending amount according to the model output values ​​of the nitrogen oxide concentration and the carbon monoxide concentration, and adjust the lower secondary air intake volume according to the model output value of the fly ash carbon content, providing a theoretical basis for actual boiler operation, making the adjustment of the air intake volume and the exhaust gas blending amount more precise, and can control the concentration of subsequent boiler emissions and reduce environmental pollution.

[0046] In some embodiments, when the difference between the temperature value and the preset temperature value is not within the preset difference range, adjusting the primary air intake volume according to the first preset adjustment value may include: if the temperature value is greater than the preset temperature value, reducing the primary air intake volume according to the first preset adjustment value; or, if the temperature value is less than the preset temperature value, increasing the primary air intake volume according to the first preset adjustment value.

[0047] For example, if the temperature value Greater than the preset temperature value at the same time and The difference is not within the preset difference range, satisfying At this time, the temperature at the secondary air inlet is too high, so the primary air intake volume can be increased. The value of the first preset adjustment value is reduced , in order to reduce the temperature at the secondary air inlet. Correspondingly, if the temperature value Lower than the preset temperature at the same time and The difference is not within the preset difference range, satisfying At this time, the temperature at the secondary air inlet is too low, so the primary air intake volume can be increased. The value increases by the first preset adjustment value , to increase the temperature at the secondary air inlet.

[0048] In some embodiments, the inlet position of the exhaust gas co-combustion may include at least one of the upper secondary air inlets; the upper secondary air inlet includes a first type of upper secondary air inlet located on the first wall and a second type of upper secondary air inlet located on the second wall; the temperature value at the upper secondary air inlet of the boiler may include a first average temperature of the first type of upper secondary air inlet and a second average temperature of the second type of upper secondary air inlet; adjusting the inlet position of the exhaust gas co-combustion in the boiler reaction model may include: adjusting the inlet position of the exhaust gas co-combustion from the upper secondary air inlet according to the difference between the first average temperature and the second average temperature.

[0049] The number of upper secondary air inlets may be 12, the first wall may be the front wall of the boiler, and the second wall may be the rear wall of the boiler. For example, six upper secondary air inlets may be provided on both the front and rear walls of the boiler. The method for arranging the positions of the exhaust gas co-combustion inlets may be to select two inlets from the six upper secondary air inlets on the front wall of the boiler as inlets for exhaust gas co-combustion, and to select four inlets from the six upper secondary air inlets on the rear wall of the boiler as inlets for exhaust gas co-combustion. The method for arranging the positions of the exhaust gas co-combustion inlets may also be to select three inlets from the six upper secondary air inlets on the front wall of the boiler as inlets for exhaust gas co-combustion, and to select three inlets from the six upper secondary air inlets on the rear wall of the boiler as inlets for exhaust gas co-combustion.

[0050] For example, in order to control the temperature distribution at the upper secondary air inlet, the first average temperature of the first type of upper secondary air inlet located on the front wall of the boiler can be obtained. and the second average temperature of the second type of secondary air inlet located on the rear wall of the boiler , and according to the first average temperature and the second average temperature The difference ( ), adjust the inlet position of the exhaust gas from the first type of secondary air inlet and the second type of secondary air inlet. For example, when At this time, the difference between the average temperature of the secondary air inlet on the front wall and the average temperature of the secondary air inlet on the rear wall is small. Among the 6 upper secondary air inlets on the boiler front wall, 3 inlets can be selected as the inlet for exhaust gas co-combustion. At the same time, among the 6 upper secondary air inlets on the boiler rear wall, 3 inlets can be selected as the inlet for exhaust gas co-combustion. In this way, the average temperature of the secondary air inlet on the boiler front wall can be appropriately increased to match the temperature at the coal feeding port of the boiler. is the first average temperature difference threshold value obtained based on historical experience and experimental measurements. In addition, the selection of three exhaust gas co-combustion inlets among the six upper secondary air inlets in the front wall and the rear wall can be determined based on historical experience and experimental measurements. In another case, for example, when When is the second average temperature difference threshold obtained based on historical experience and experimental measurements, and satisfies At this time, the average temperature difference between the upper secondary air inlet on the front wall and the average temperature difference between the upper secondary air inlet on the rear wall is large. It is possible to select two of the six upper secondary air inlets on the boiler front wall as inlets for exhaust gas co-combustion, and simultaneously select four of the six upper secondary air inlets on the boiler rear wall as inlets for exhaust gas co-combustion. This will make the temperature distribution between the front and rear walls more uniform, thus avoiding localized high temperatures. In addition, the selection of two of the six upper secondary air inlets on the front wall and four of the six upper secondary air inlets on the rear wall can be determined based on historical experience and through experimental measurements.

[0051] The above technical solution can adjust the inlet position of the exhaust gas co-combustion according to the average temperature of the secondary air inlet on the front wall and the average temperature of the secondary air inlet on the rear wall, so that the temperature distribution of the front wall and the rear wall is more uniform, avoiding local high temperature, and at the same time making the average temperature of the upper secondary air inlet match the temperature at the coal feeding port of the boiler.

[0052] In other embodiments, when the second boiler reaction parameters do not meet the pollutant emission control conditions, the steps of adjusting the inlet position of the exhaust gas co-combustion in the boiler reaction model, and adjusting the air intake volume and the exhaust gas co-combustion amount can be repeated until the adjusted air intake volume and the exhaust gas co-combustion amount are input into the adjusted boiler reaction model to obtain the second boiler reaction parameters output by the boiler reaction model, until the obtained second boiler reaction parameters meet the pollutant emission control conditions.

[0053] For example, if the second boiler reaction parameters obtained according to step S103 still do not meet the pollutant emission control conditions, step S102 is executed again. Based on the adjusted air intake, exhaust gas co-combustion amount, and exhaust gas co-combustion inlet position obtained by the repeated execution of step S102, step S103 is executed again to determine whether the second boiler reaction parameters obtained after the repeated execution of step S103 meet the pollutant emission control conditions. Similarly, steps S102 and S103 are repeated until the second boiler reaction parameters obtained in step S103 meet the pollutant emission control conditions. In this way, by repeatedly adjusting the boiler's air intake, exhaust gas co-combustion amount, and exhaust gas co-combustion inlet position based on the model output values ​​of the boiler reaction parameters, the adjustment of the air intake, exhaust gas co-combustion amount, and exhaust gas co-combustion inlet position can be made more precise, thereby controlling the concentration of subsequent boiler emissions and reducing environmental pollution.

[0054] In some embodiments, the boiler reaction model is pre-trained in the following manner: grid modeling the boiler to obtain a grid model corresponding to the boiler, and model training the grid model based on historical boiler reaction parameters, historical air intake volume and historical exhaust gas blending volume corresponding to the boiler to obtain the boiler reaction model.

[0055] For example, the boiler can be gridded using the Cartesian grid method, and the number of grids can be 700,000. The boundary conditions of the grid may include the boiler coal feed rate, the primary air volume and temperature value, the secondary air volume and temperature value, the return air volume at the boiler cyclone separator, the loose air volume input to the boiler, and the limestone consumption in the boiler reaction, etc. For example, the boiler coal feed rate can be set to 54.13 tons per hour, the primary air volume can be set to 196244 standard cubic meters per hour, the primary air temperature value can be set to 200 degrees Celsius, the secondary air volume can be set to 160564 standard cubic meters per hour, the secondary air temperature value can be set to 200 degrees Celsius, the return air volume can be set to 3246 standard cubic meters per hour, the loose air volume can be set to 1622 standard cubic meters per hour, and the limestone consumption can be set to 4.5 tons per hour. In addition, after obtaining the grid model corresponding to the boiler, the historical boiler reaction parameters, historical air intake volume and historical exhaust gas co-combustion volume under multiple historical periods can be input into the grid model. The time and number of the historical periods can be determined according to the actual accuracy. For example, the average value of the boiler reaction parameters of the first five historical periods can be determined as the historical boiler reaction parameters, the average value of the air intake volume of the first five historical periods can be determined as the historical air intake volume, and the average value of the exhaust gas co-combustion volume of the first five historical periods can be determined as the historical exhaust gas co-combustion volume.

[0056] In some embodiments, the fluid phase equation and the particle phase equation in the grid model can be solved to obtain a numerical model, and the historical boiler reaction parameters, the historical air intake volume and the historical exhaust gas co-combustion volume are input into the numerical model to train the boiler reaction model.

[0057] For example, the fluid phase equation can be an equation based on the Navier-Stokes equation and the momentum coupling equation between the particle and the fluid. The Navier-Stokes equation can be expressed as follows:

[0058] in, For time, is the fluid velocity, is the external force per unit volume of fluid, is the fluid density, p is the pressure, is the dynamic viscosity.

[0059] At the same time, the momentum coupling equation between the particle and the fluid can be expressed as follows:

[0060] in, For the computational grid, Represents a computational grid The volume, Represents a computational grid Middle The drag force on each particle is calculated, is the velocity of the fluid phase, is the velocity of the particle phase, For the The density of the calculated particles, For the The pressure on the calculated particle is For the The mass of the calculated particle, is the number of actual particles represented by the kth calculated particle, For the An interpolation operator for calculating particles.

[0061] In addition, the particle phase equation can be obtained based on the MP-PIC (Multiphase Particle-In-Cell) method and can be expressed as follows:

[0062] in, is the velocity vector, For time, is the drag force on the particle, is the velocity vector of the fluid phase, is the pressure on the particle, is the acceleration due to gravity, is the particle density, is the particle volume fraction, is the normal stress on the particle.

[0063] Figure 2 is a flow chart showing another boiler exhaust gas co-combustion control method according to an exemplary embodiment. Figure 2 As shown, the method may include: S201. Perform grid modeling on the boiler to obtain a grid model corresponding to the boiler.

[0064] For example, the boiler can be gridded using the Cartesian grid method, and the number of grids can be 700,000. The boundary conditions of the grid can include the boiler coal feed rate, the primary air volume and temperature value, the secondary air volume and temperature value, the return air volume at the boiler cyclone separator, the loose air volume input to the boiler, and the limestone consumption in the boiler reaction.

[0065] S202. Solve the fluid phase equation and the particle phase equation in the grid model to obtain a numerical model.

[0066] The fluid phase equation may be an equation obtained based on the Navier-Stokes equation and the momentum coupling equation between particles and fluid, and the particle phase equation may be obtained based on the MP-PIC method.

[0067] S203 , inputting historical boiler reaction parameters, historical air intake volume, and historical exhaust gas blending volume into the numerical model to train and obtain a boiler reaction model.

[0068] The grid model may be input with historical boiler reaction parameters, historical air intake volume, and historical exhaust gas blending volume under multiple historical periods. The time and number of the historical periods may be determined according to actual accuracy.

[0069] S204: Input the air intake volume and exhaust gas blending volume of the boiler into a pre-trained boiler reaction model to obtain a first boiler reaction parameter output by the boiler reaction model.

[0070] The air intake volume may include the primary air intake volume at the fluidizing air inlet of the boiler, the upper secondary air intake volume at the upper secondary air inlet of the boiler, and the lower secondary air intake volume at the lower secondary air inlet of the boiler. Boiler reaction parameters may include the nitrogen oxide concentration, carbon monoxide concentration, and fly ash carbon content after the boiler completes the reaction, as well as the temperature at the upper secondary air inlet of the boiler. The waste gas co-combustion volume may include the co-combustion volume of low-calorific value waste gas generated in chemical production in the boiler.

[0071] S205: Determine whether the first boiler reaction parameter meets the pollutant emission control conditions.

[0072] Among them, the pollutant emission control conditions include: the difference between the temperature value and the preset temperature value is within the preset difference range; the nitrogen oxide concentration is less than or equal to the preset nitrogen oxide concentration threshold; the carbon monoxide concentration is less than or equal to the preset carbon monoxide concentration threshold; and the fly ash carbon content is less than or equal to the preset fly ash carbon content threshold.

[0073] If the first boiler reaction parameter meets the pollutant emission control condition, execute step S209; Alternatively, when the first boiler reaction parameter does not meet the pollutant emission control conditions, step S206 is executed.

[0074] S206: Adjust the inlet position of the exhaust gas co-combustion in the boiler reaction model, and adjust the air intake volume and the exhaust gas co-combustion volume.

[0075] For example, the upper secondary air inlet includes a first type of upper secondary air inlet located on the first wall and a second type of upper secondary air inlet located on the second wall; the temperature value at the upper secondary air inlet of the boiler includes a first average temperature of the first type of upper secondary air inlet and a second average temperature of the second type of upper secondary air inlet; adjusting the inlet position of the exhaust gas co-combustion in the boiler reaction model includes: adjusting the inlet position of the exhaust gas co-combustion from the upper secondary air inlet according to the difference between the first average temperature and the second average temperature.

[0076] In addition, when the difference between the temperature value and the preset temperature value is not within the preset difference range, the primary air intake volume is adjusted according to the first preset adjustment value; when the nitrogen oxide concentration is greater than the preset nitrogen oxide concentration threshold or the carbon monoxide concentration is greater than the preset carbon monoxide concentration threshold, the upper secondary air intake volume and the exhaust gas co-combustion amount are increased according to the second preset adjustment value; when the fly ash carbon content is greater than the preset fly ash carbon content threshold, the lower secondary air intake volume is increased according to the third preset adjustment value.

[0077] S207: Input the adjusted air intake volume and the exhaust gas blending volume into the adjusted boiler reaction model to obtain a second boiler reaction parameter output by the boiler reaction model.

[0078] S208: Determine whether the second boiler reaction parameter meets the pollutant emission control conditions.

[0079] If the second boiler reaction parameter meets the pollutant emission control condition, execute step S209; Alternatively, when the second boiler reaction parameter does not meet the pollutant emission control conditions, step S206 is executed.

[0080] S209. Control the air intake volume and the exhaust gas co-combustion volume flowing into the boiler according to the adjusted exhaust gas co-combustion inlet position, air intake volume and exhaust gas co-combustion volume.

[0081] By adopting the above method, the air intake volume and exhaust gas co-combustion volume of the boiler can be input into a pre-trained boiler reaction model to obtain a first boiler reaction parameter output by the boiler reaction model. When the obtained first boiler reaction parameter does not meet the pollutant emission control conditions, the steps of adjusting the inlet position of the exhaust gas co-combustion in the boiler reaction model and adjusting the air intake volume and the exhaust gas co-combustion volume are repeated until the adjusted air intake volume and the exhaust gas co-combustion volume are input into the adjusted boiler reaction model to obtain a second boiler reaction parameter output by the boiler reaction model, until the second boiler reaction parameters meet the pollutant emission control conditions, the air intake volume and exhaust gas co-combustion volume flowing into the boiler are controlled according to the adjusted inlet position of the exhaust gas co-combustion, air intake volume and exhaust gas co-combustion volume. In this way, by predicting the reaction parameters of the boiler through the boiler reaction model, the internal temperature distribution of the boiler and the flow conditions of the coal particles during boiler operation can be fully reflected, making the prediction of the reaction parameters more accurate. According to the predicted boiler reaction parameters, the inlet position of the exhaust gas co-combustion is adjusted, and the air intake volume and exhaust gas co-combustion amount flowing into the boiler are controlled, providing a theoretical basis for the actual operation of the boiler, and being able to control the concentration of subsequent boiler emissions and reduce environmental pollution.

[0082] It should be noted that the above Figure 2 For the relevant description of each step in the illustrated embodiment, reference can be made to the description of the relevant steps in the aforementioned embodiment, which will not be repeated here.

[0083] Figure 3 This is a block diagram of a boiler exhaust gas co-combustion control device according to an exemplary embodiment. Figure 3 , the device comprises: The determination module 301 is configured to input the air intake rate and the exhaust gas blending rate of the boiler into a pre-trained boiler reaction model to obtain a first boiler reaction parameter output by the boiler reaction model; An adjustment module 302 is configured to adjust the inlet position of the exhaust gas co-combustion in the boiler reaction model, and adjust the air intake volume and the exhaust gas co-combustion volume if the first boiler reaction parameter does not meet the pollutant emission control conditions; The determination module 301 is further configured to input the adjusted air intake volume and the exhaust gas blending volume into the adjusted boiler reaction model to obtain a second boiler reaction parameter output by the boiler reaction model; The control module 303 is used to control the air intake and exhaust gas co-combustion amount flowing into the boiler according to the adjusted exhaust gas co-combustion inlet position, air intake and exhaust gas co-combustion amount when the reaction parameters of the second boiler meet the pollutant emission control conditions.

[0084] Optionally, the boiler reaction parameters include the nitrogen oxide concentration, carbon monoxide concentration and fly ash carbon content after the boiler completes the reaction, and the temperature value at the upper secondary air inlet of the boiler; the pollutant emission control conditions include: the difference between the temperature value and the preset temperature value is within a preset difference range; the nitrogen oxide concentration is less than or equal to the preset nitrogen oxide concentration threshold; the carbon monoxide concentration is less than or equal to the preset carbon monoxide concentration threshold; and the fly ash carbon content is less than or equal to the preset fly ash carbon content threshold.

[0085] Optionally, the air intake volume includes the primary air intake volume of the fluidizing air inlet of the boiler, the upper secondary air intake volume of the upper secondary air inlet of the boiler, and the lower secondary air intake volume of the lower secondary air inlet of the boiler; the adjustment module is used to adjust the primary air intake volume according to a first preset adjustment value when the difference between the temperature value and the preset temperature value is not within a preset difference range; increase the upper secondary air intake volume and the exhaust gas co-combustion amount according to a second preset adjustment value when the nitrogen oxide concentration is greater than the preset nitrogen oxide concentration threshold or the carbon monoxide concentration is greater than the preset carbon monoxide concentration threshold; increase the lower secondary air intake volume according to a third preset adjustment value when the fly ash carbon content is greater than the preset fly ash carbon content threshold.

[0086] Optionally, the adjustment module 302 is used to reduce the primary air intake volume according to a first preset adjustment value if the temperature value is greater than the preset temperature value; or to increase the primary air intake volume according to the first preset adjustment value if the temperature value is less than the preset temperature value.

[0087] Optionally, the inlet position of the exhaust gas co-combustion includes at least one of the upper secondary air inlets; the upper secondary air inlet includes a first type of upper secondary air inlet located on the first wall and a second type of upper secondary air inlet located on the second wall; the temperature value at the upper secondary air inlet of the boiler includes a first average temperature of the first type of upper secondary air inlet and a second average temperature of the second type of upper secondary air inlet; the adjustment module 302 is used to adjust the inlet position of the exhaust gas co-combustion from the upper secondary air inlet according to the difference between the first average temperature and the second average temperature.

[0088] Optionally, the adjustment module 302 is also used to repeatedly execute the steps of adjusting the inlet position of the exhaust gas co-combustion in the boiler reaction model and adjusting the air intake volume and the exhaust gas co-combustion amount until the adjusted air intake volume and the exhaust gas co-combustion amount are input into the adjusted boiler reaction model to obtain the second boiler reaction parameters output by the boiler reaction model when the second boiler reaction parameters do not meet the pollutant emission control conditions, until the obtained second boiler reaction parameters meet the pollutant emission control conditions.

[0089] Alternatively, as Figure 4As shown, the device also includes: a model training module 304, which is used to perform grid modeling on the boiler to obtain a grid model corresponding to the boiler; based on the historical boiler reaction parameters, historical air intake volume and historical exhaust gas blending volume corresponding to the boiler, the grid model is trained to obtain the boiler reaction model.

[0090] By using the above-mentioned device, the air intake volume and exhaust gas co-combustion volume of the boiler can be input into a pre-trained boiler reaction model to obtain a first boiler reaction parameter output by the boiler reaction model. If the obtained first boiler reaction parameter does not meet the pollutant emission control conditions, the steps of adjusting the inlet position of the exhaust gas co-combustion in the boiler reaction model and adjusting the air intake volume and the exhaust gas co-combustion volume are repeated until the adjusted air intake volume and the exhaust gas co-combustion volume are input into the adjusted boiler reaction model to obtain a second boiler reaction parameter output by the boiler reaction model, until the second boiler reaction parameters meet the pollutant emission control conditions, the air intake volume and exhaust gas co-combustion volume flowing into the boiler are controlled according to the adjusted inlet position of the exhaust gas co-combustion, air intake volume and exhaust gas co-combustion volume. In this way, by predicting the reaction parameters of the boiler through the boiler reaction model, the internal temperature distribution of the boiler and the flow conditions of the coal particles during boiler operation can be fully reflected, making the prediction of the reaction parameters more accurate. According to the predicted boiler reaction parameters, the inlet position of the exhaust gas co-combustion is adjusted, and the air intake volume and exhaust gas co-combustion amount flowing into the boiler are controlled, providing a theoretical basis for the actual operation of the boiler, and being able to control the concentration of subsequent boiler emissions and reduce environmental pollution.

[0091] Regarding the apparatus in the above embodiment, the specific manner in which each module performs operations has been described in detail in the embodiment of the method, and will not be elaborated here.

[0092] Figure 5 FIG. 5 is a block diagram of an electronic device 500 according to an exemplary embodiment of the present disclosure. Figure 5 As shown, the electronic device 500 may include: a processor 501 , a memory 502 , and may further include one or more of a multimedia component 503 , an input / output (I / O) interface 504 , and a communication component 505 .

[0093] The processor 501 is used to control the overall operation of the electronic device 500 to complete all or part of the steps in the above-mentioned boiler exhaust gas co-combustion control method. The memory 502 is used to store various types of data to support the operation of the electronic device 500. This data may include, for example, instructions for any application or method operating on the electronic device 500, as well as application-related data such as contact information, sent and received messages, images, audio, and video. The memory 502 may be implemented by any type of volatile or non-volatile storage device, or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic storage, flash memory, magnetic disk, or optical disk. The multimedia component 503 may include a screen and an audio component. The screen may be, for example, a touch screen, and the audio component is used to output and / or input audio signals. For example, the audio component may include a microphone for receiving external audio signals. The received audio signals may be further stored in the memory 502 or transmitted via the communication component 505. The audio component also includes at least one speaker for outputting audio signals. The I / O interface 504 provides an interface between the processor 501 and other interface modules, which may be a keyboard, a mouse, buttons, etc. These buttons may be virtual buttons or physical buttons. The communication component 505 is used for wired or wireless communication between the electronic device 500 and other devices. Wireless communication, such as Wi-Fi, Bluetooth, Near Field Communication (NFC), 2G, 3G, 4G, NB-IOT, eMTC, or other 5G networks, or a combination of one or more thereof, is not limited here. Therefore, the corresponding communication component 505 may include: a Wi-Fi module, a Bluetooth module, an NFC module, etc.

[0094] In an exemplary embodiment, the electronic device 500 can be implemented by one or more application-specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field programmable gate arrays (FPGAs), controllers, microcontrollers, microprocessors, or other electronic components to execute the above-mentioned boiler exhaust gas co-combustion control method.

[0095] In another exemplary embodiment, a computer-readable storage medium including program instructions is further provided. When executed by a processor, the program instructions implement the steps of the aforementioned boiler exhaust gas co-combustion control method. For example, the computer-readable storage medium may be the aforementioned memory 502 including the program instructions. The program instructions may be executed by the processor 501 of the electronic device 500 to implement the aforementioned boiler exhaust gas co-combustion control method.

[0096] The preferred embodiments of the present disclosure are described in detail above in conjunction with the accompanying drawings. However, the present disclosure is not limited to the specific details of the above embodiments. Within the technical concept of the present disclosure, various simple modifications can be made to the technical solutions of the present disclosure, and these simple modifications all fall within the scope of protection of the present disclosure.

[0097] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any appropriate manner without contradiction. In order to avoid unnecessary repetition, the present disclosure will not further describe various possible combinations.

[0098] In addition, the various embodiments of the present disclosure may be arbitrarily combined, and as long as they do not violate the concept of the present disclosure, they should also be regarded as the contents disclosed by the present disclosure.

Claims

1. A method for controlling the co-combustion of boiler exhaust gas, characterized in that: The method comprises: Inputting the air intake rate and exhaust gas blending rate of the boiler into a pre-trained boiler reaction model to obtain a first boiler reaction parameter output by the boiler reaction model; When the first boiler reaction parameter does not meet the pollutant emission control conditions, adjusting the inlet position of the exhaust gas co-combustion in the boiler reaction model, and adjusting the air intake volume and the exhaust gas co-combustion volume; Inputting the adjusted air intake volume and the exhaust gas blending volume into the adjusted boiler reaction model to obtain a second boiler reaction parameter output by the boiler reaction model; When the reaction parameters of the second boiler meet the pollutant emission control conditions, the air intake volume and the exhaust gas co-combustion volume flowing into the boiler are controlled according to the adjusted exhaust gas co-combustion inlet position, air intake volume and exhaust gas co-combustion volume.

2. The method according to claim 1, characterized in that The boiler reaction parameters include the nitrogen oxide concentration, carbon monoxide concentration and fly ash carbon content after the boiler completes the reaction, and the temperature value at the upper secondary air inlet of the boiler; The pollutant emission control conditions include: The difference between the temperature value and the preset temperature value is within a preset difference range; The nitrogen oxide concentration is less than or equal to a preset nitrogen oxide concentration threshold; The carbon monoxide concentration is less than or equal to a preset carbon monoxide concentration threshold; and The fly ash carbon content is less than or equal to a preset fly ash carbon content threshold.

3. The method according to claim 2, characterized in that The air intake volume includes the primary air intake volume of the fluidizing air inlet of the boiler, the upper secondary air intake volume of the upper secondary air inlet of the boiler, and the lower secondary air intake volume of the lower secondary air inlet of the boiler; The adjusting of the air intake volume and the exhaust gas blending volume comprises: When the difference between the temperature value and the preset temperature value is not within the preset difference range, adjusting the primary air intake volume according to a first preset adjustment value; When the nitrogen oxide concentration is greater than a preset nitrogen oxide concentration threshold or the carbon monoxide concentration is greater than a preset carbon monoxide concentration threshold, increasing the upper secondary air intake volume and the exhaust gas blending volume according to a second preset adjustment value; When the fly ash carbon content is greater than a preset fly ash carbon content threshold, the lower secondary air intake volume is increased according to a third preset adjustment value.

4. The method according to claim 3, characterized in that When the difference between the temperature value and the preset temperature value is not within the preset difference range, adjusting the primary air intake volume according to the first preset adjustment value includes: If the temperature value is greater than the preset temperature value, the primary air intake volume is reduced according to a first preset adjustment value; or If the temperature value is lower than the preset temperature value, the primary air intake volume is increased according to a first preset adjustment value.

5. The method according to claim 3, characterized in that The inlet position of the exhaust gas co-combustion includes at least one of the upper secondary air inlets; the upper secondary air inlet includes a first type of upper secondary air inlet located on the first wall and a second type of upper secondary air inlet located on the second wall; the temperature value at the upper secondary air inlet of the boiler includes a first average temperature of the first type of upper secondary air inlet and a second average temperature of the second type of upper secondary air inlet; the adjusting the inlet position of the exhaust gas co-combustion in the boiler reaction model includes: According to the difference between the first average temperature and the second average temperature, the inlet position of the exhaust gas co-combustion is adjusted from the upper secondary air inlet.

6. The method according to claim 2, characterized in that The method further comprises: When the second boiler reaction parameters do not meet the pollutant emission control conditions, the steps of adjusting the inlet position of the exhaust gas co-combustion in the boiler reaction model, and adjusting the air intake volume and the exhaust gas co-combustion amount are repeated until the adjusted air intake volume and the exhaust gas co-combustion amount are input into the adjusted boiler reaction model to obtain the second boiler reaction parameters output by the boiler reaction model, until the obtained second boiler reaction parameters meet the pollutant emission control conditions.

7. The method according to any one of claims 1 to 6, characterized in that The boiler reaction model is pre-trained in the following way: Performing grid modeling on the boiler to obtain a grid model corresponding to the boiler; The grid model is trained according to historical boiler reaction parameters, historical air intake volume, and historical exhaust gas blending volume corresponding to the boiler to obtain the boiler reaction model.

8. A boiler exhaust gas co-combustion control device, characterized in that: The device comprises: a determination module, configured to input the air intake rate and exhaust gas blending rate of the boiler into a pre-trained boiler reaction model to obtain a first boiler reaction parameter output by the boiler reaction model; an adjustment module, configured to adjust the inlet position of the exhaust gas co-combustion in the boiler reaction model, and adjust the air intake volume and the exhaust gas co-combustion volume when the first boiler reaction parameter does not meet the pollutant emission control condition; The determining module is further configured to input the adjusted air intake volume and the exhaust gas blending volume into the adjusted boiler reaction model to obtain a second boiler reaction parameter output by the boiler reaction model; A control module is used to control the air intake and exhaust gas co-combustion amount flowing into the boiler according to the adjusted exhaust gas co-combustion inlet position, air intake and exhaust gas co-combustion amount when the reaction parameters of the second boiler meet the pollutant emission control conditions.

9. A non-transitory computer-readable storage medium having a computer program stored thereon, characterized in that: When the program is executed by a processor, the steps of the method according to any one of claims 1 to 7 are implemented.

10. An electronic device, characterized in that: include: a memory having a computer program stored thereon; A processor, configured to execute the computer program in the memory to implement the steps of the method according to any one of claims 1 to 7.

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