Furnace chamber environment regulation method, apparatus and device, and computer device

Abstract

The present invention relates to a furnace chamber environment regulation method and apparatus, and a computer device and a storage medium. A furnace chamber is equipped with a pressure regulating valve and a pressure sensor, wherein the pressure regulating valve is connected to a compressed air duct, and on the basis of feedback from the pressure sensor, the flow of air entering the furnace chamber is automatically adjusted. In this case, in the present application, such a regulation system enables real-time responses to pressure changes, and the flow of air is then increased or decreased to adjust the pressure in the furnace chamber, so as to keep the pressure within a safe and ideal operating range. Such precise pressure regulation not only protects a furnace chamber device, but also helps optimize the combustion efficiency and reduce emissions.

Description

Methods, devices, equipment, and computer equipment for controlling the furnace environment Technical Field

[0001] This invention relates to the field of data processing technology, and in particular to a method, apparatus, computer equipment, and storage medium for controlling the furnace environment. Background Technology

[0002] In coal-fired and gas-fired boilers, acoustic temperature measurement technology accurately measures and monitors combustion temperature by monitoring the propagation speed of sound waves during combustion. This technology is widely used in coal-fired and gas-fired boilers because the combustion process of fuels such as coal and natural gas is relatively stable, and temperature changes are relatively controllable.

[0003] However, in the processes of waste incineration and biomass application, the calorific value of the waste and biomass fuels used is usually quite unstable, and the combustion process often fluctuates. This instability can cause the negative pressure in the furnace to temporarily shift to a slightly positive pressure condition, which may lead to damage to the measuring elements of the acoustic temperature measurement device due to high temperatures. Summary of the Invention

[0004] The main objective of this invention is to provide a method, apparatus, computer equipment, and storage medium for regulating the furnace environment, in order to solve the problem that the measuring elements of the acoustic temperature measuring device may be damaged by high temperature under micro-positive pressure conditions.

[0005] To achieve the above objectives, the present invention provides a method for regulating the furnace environment. An acoustic temperature measuring instrument is installed on the vertical flue wall of the incinerator, and the instrument is connected to a compressed air pipeline via a pressure regulating valve at the connection point of the vertical flue. The regulation method includes: measuring the real-time negative pressure value at the acoustic temperature measuring instrument and determining whether the real-time negative pressure value exceeds a preset negative pressure value; if the real-time negative pressure value exceeds the preset negative pressure value, determining the opening control amount of the pressure regulating valve of the compressed air pipeline at the connection point between the vertical flue and the acoustic temperature measuring instrument based on the real-time negative pressure value; and regulating the pressure regulating valve in real time according to the opening control amount to control the air input into the furnace of the incinerator, reducing the pressure value at the connection point between the instrument and the vertical flue, and ensuring that the instrument is not damaged by the high-temperature flue gas overflowing from the vertical flue.

[0006] A pressure sensor is also installed at the point where the acoustic temperature measuring instrument is inserted into the vertical flue pipe to measure the negative pressure value at the acoustic temperature measuring instrument.

[0007] Optionally, before determining the opening control amount of the pressure regulating valve of the compressed air pipeline at the connection between the vertical flue of the incinerator and the acoustic temperature measuring instrument based on the real-time negative pressure value, the method further includes...

[0008] Optionally, determining the opening control quantity of the pressure regulating valve of the compressed air pipeline at the connection between the vertical flue of the incinerator and the acoustic temperature measuring instrument based on the real-time negative pressure value includes: determining a first difference between the real-time negative pressure value and a preset negative pressure value, and multiplying the first difference by a preset proportional gain value to obtain a proportional control quantity; determining the integral of the difference between the real-time negative pressure value and the preset negative pressure value within a first historical period, and multiplying the integral of the difference by a preset integral gain value to obtain an integral control quantity, wherein the first historical period is a historical period of a first preset duration from the current time; determining the derivative of the difference between the real-time negative pressure value and the preset negative pressure value within a second historical period, and multiplying the derivative of the difference by a preset derivative gain value to obtain a derivative control quantity, wherein the second historical period is a historical period of a second preset duration from the current time; and accumulating the proportional control quantity, the integral control quantity, and the derivative control quantity to obtain the opening control quantity.

[0009] Optionally, before real-time adjustment of the pressure regulating valve based on the opening control amount to control air input into the furnace of the incinerator and reduce the pressure value at the connection between the instrument and the vertical flue of the incinerator, the control method further includes: measuring the negative pressure value at the inlet of the vertical flue of the incinerator and obtaining the combustion parameters of the furnace, wherein the combustion parameters include at least one of: fuel supply rate, air supply, combustion temperature, furnace pressure distribution, and furnace temperature distribution; predicting the negative pressure change trend of the furnace based on the negative pressure value at the inlet of the vertical flue of the incinerator and the combustion parameters of the furnace; and determining the opening control amount of the pressure regulating valve for connecting the compressed air pipeline in the furnace based on the real-time negative pressure value, including: adjusting the opening control amount according to the negative pressure change trend.

[0010] Optionally, before predicting the negative pressure change trend of the furnace based on the negative pressure value at the inlet of the vertical flue of the incinerator and the combustion parameters of the furnace, the control method further includes: collecting historical data, wherein the historical data includes the negative pressure value at the inlet of the vertical flue of the incinerator and the combustion parameters of the furnace; and performing data cleaning, missing value imputation, and outlier processing on the historical data to ensure the data quality of the historical data; and establishing a prediction model for the negative pressure change trend of the furnace using a neural network, wherein the input layer of the prediction model is used to input the negative pressure value at the inlet of the vertical flue of the incinerator and the combustion parameters of the furnace, and the output layer of the prediction model is used to output the negative pressure change of the furnace. The historical data is divided into a training set and a validation set. The prediction model is trained using the training set, and the network parameters of the prediction model are adjusted using a backpropagation algorithm during training to optimize the prediction model. The network parameters include the number of network layers, the number of neurons per layer, and the learning rate. The prediction model is validated using the validation set to obtain multiple evaluation metrics. If the evaluation metrics of the prediction model fail to meet the preset standards, the network parameters of the prediction model are further adjusted using the backpropagation algorithm to optimize the prediction model until the evaluation metrics of the prediction model meet the preset standards. The evaluation metrics include mean squared error and root mean square error.

[0011] Optionally, based on the negative pressure value at the inlet of the vertical flue of the incinerator and the combustion parameters of the furnace, the negative pressure change trend of the furnace is predicted, including: inputting the negative pressure value at the inlet of the vertical flue of the incinerator and the combustion parameters of the furnace into the evaluation index and obtaining the negative pressure change trend of the furnace through a prediction model with preset standards.

[0012] Optionally, adjusting the opening control quantity based on the negative pressure change trend includes: determining the predicted negative pressure value of the furnace at a target time based on the negative pressure change trend, wherein the target time is a future time point three preset time intervals from the current time; maintaining the opening control quantity unchanged when the predicted negative pressure value is within a preset range; lowering the opening control quantity when the preset negative pressure value is lower than a first threshold, wherein the first threshold is the endpoint value of the preset range; and increasing the opening control quantity when the preset negative pressure value is higher than a second threshold, wherein the second threshold is the endpoint value of the preset range.

[0013] This invention provides a furnace environment control device. An acoustic temperature measuring instrument is installed on the vertical flue wall of the incinerator, and a compressed air pipeline connected to the instrument via a pressure regulating valve is located at the connection point of the instrument to the vertical flue. The control device includes: a judgment unit, which determines whether the real-time negative pressure value measured at the acoustic temperature measuring instrument exceeds a preset negative pressure value; a determination unit, which, if the real-time negative pressure value exceeds the preset negative pressure value, determines the opening control amount of the pressure regulating valve at the connection point of the compressed air pipeline between the vertical flue and the acoustic temperature measuring instrument; and a control unit, which adjusts the pressure regulating valve in real-time according to the opening control amount, controlling the air input into the furnace of the incinerator, reducing the pressure value at the connection point of the instrument and the vertical flue, and ensuring that the instrument is not damaged by the high-temperature flue gas overflowing from the vertical flue.

[0014] A pressure sensor is installed at the point where the acoustic temperature measuring instrument is inserted into the vertical flue pipe to measure the real-time negative pressure value at the location of the acoustic temperature measuring instrument.

[0015] This invention provides a furnace environment control device, comprising: a compressed air cooling module disposed within a compressed air pipeline for cooling the compressed air within the pipeline; multiple negative pressure monitoring points disposed at the inlet of the vertical flue of the incinerator where an acoustic thermometer is inserted, for measuring the negative pressure value at the acoustic thermometer and the negative pressure value at the incinerator vertical flue inlet; and a distributed control node communicatively connected to the multiple negative pressure monitoring points and a pressure regulating valve, for acquiring the negative pressure value at the acoustic thermometer and the negative pressure value at the incinerator vertical flue inlet, and controlling and adjusting the pressure regulating valve based on the negative pressure values ​​at the acoustic thermometer and the incinerator vertical flue inlet, so that the acoustic thermometer is within a preset negative pressure range, wherein the pressure regulating valve controls the output of the compressed air pipeline, and the compressed air pipeline is used to adjust the temperature and pressure values ​​within the furnace.

[0016] The negative pressure monitoring point is also achieved by installing a pressure sensor at the point where the acoustic temperature measuring instrument is inserted into the vertical flue pipe, which is used to measure the negative pressure value at the acoustic temperature measuring instrument.

[0017] The present invention also provides a computer device, including a memory and a processor, wherein the memory stores a computer program, and the processor executes the computer program to implement the steps of any of the methods described above.

[0018] The present invention also provides a computer-readable storage medium having a computer program stored thereon, wherein the computer program, when executed by a processor, implements the steps of any of the methods described above.

[0019] The advantages of this invention are as follows:

[0020] Real-time performance and accuracy: The system measures and monitors the negative pressure value at the vertical flue wall of the incinerator in real time using an acoustic temperature measuring instrument, enabling rapid response to changes in the pressure inside the furnace. Once the negative pressure value exceeds the preset safety threshold, control measures are immediately taken, effectively preventing potential damage to the instrument from high-temperature flue gas and improving the safety and stability of the system.

[0021] Intelligent control: Based on the real-time negative pressure value, the opening control of the pressure regulating valve on the compressed air pipeline is automatically calculated and adjusted, realizing intelligent and precise control of the pressure inside the furnace. This automatic adjustment mechanism reduces the need for manual intervention and improves control efficiency and accuracy.

[0022] Protecting Instrument Safety: By injecting compressed air into the furnace, the pressure value at the connection between the instrument and the vertical flue of the incinerator is directly reduced, effectively preventing the overflow and accumulation of high-temperature flue gas, thereby protecting the acoustic temperature measuring instrument from high temperature and corrosion, and extending the service life of the instrument.

[0023] Energy saving and emission reduction: By precisely controlling the opening amount of the pressure regulating valve, it can be ensured that only the necessary amount of compressed air is injected into the furnace, avoiding energy waste. At the same time, by reducing heat loss caused by the overflow of high-temperature flue gas, it also helps to improve the overall energy efficiency of the incinerator.

[0024] Enhancing system reliability: This control method not only protects critical instrumentation equipment but also ensures the stable operation of the incinerator under complex conditions through real-time monitoring and automatic adjustment. This is of great significance for improving the reliability and operational efficiency of the entire incineration system.

[0025] Easy to maintain: Thanks to the intelligent control mechanism, the frequency of manual operation and maintenance is reduced, thus lowering maintenance costs. Furthermore, when a system malfunctions, the cause of the problem can be quickly located by analyzing real-time data and historical records, facilitating repair and recovery.

[0026] In summary, this invention provides a method, apparatus, device, computer equipment, and computer-readable storage medium for regulating the furnace environment. By equipping the furnace with a pressure regulating valve and a pressure sensor, with the pressure regulating valve connected to a compressed air pipeline, the airflow entering the furnace is automatically adjusted based on feedback from the pressure sensor. Thus, this application's regulation system can respond to pressure changes in real time, adjusting the furnace pressure by increasing or decreasing the airflow to maintain it within a safe and ideal operating range. This precise pressure regulation not only protects the furnace equipment but also helps optimize combustion efficiency and reduce emissions. Attached Figure Description

[0027] Figure 1 is a schematic diagram of the steps of a furnace environment control method in one embodiment of the present invention;

[0028] Figure 2 is a structural block diagram of a furnace environment control device in one embodiment of the present invention;

[0029] Figure 3 is a structural block diagram of a furnace environment control device in one embodiment of the present invention;

[0030] Figure 4 is a schematic block diagram of the structure of a computer device according to an embodiment of the present invention.

[0031] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0032] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0033] It should be noted that the furnace is the core component of a coal-fired or gas-fired boiler, primarily used to burn fuels such as coal and natural gas to generate heat. Inside the furnace, fuel mixes with air and burns, releasing a large amount of heat. This heat is then used to heat water or other working fluids, producing steam or hot water for heating or industrial applications. The furnace design ensures that the fuel can burn completely in a high-temperature and controlled environment to improve energy efficiency and reduce emissions.

[0034] The furnace structure typically includes an inner wall made of refractory materials that can withstand extremely high temperatures without damage. The shape, size, and design details of the furnace vary depending on the type of fuel burned and the boiler's output requirements. To optimize the combustion process and control the resulting temperatures, modern furnaces are equipped with various sensors and control systems. Among these, acoustic thermography is an advanced monitoring device that determines temperature by analyzing the speed of sound waves propagating within the furnace, as the speed of sound is directly affected by temperature. This allows operators to precisely control the temperature within the furnace, ensuring efficient fuel combustion and minimizing heat loss.

[0035] In order to maintain a suitable pressure in the furnace and avoid equipment damage or safety accidents caused by abnormal pressure, this application equips the furnace with a pressure regulating valve and a pressure sensor, and provides a method for controlling the furnace environment based on the pressure regulating valve and the pressure sensor.

[0036] The vertical flue wall of the incinerator is equipped with an acoustic temperature measuring instrument, and the location where the acoustic temperature measuring instrument is connected to the vertical flue of the incinerator is connected to a compressed air pipeline via a pressure regulating valve. The compressed air pipeline is equipped with a pressure regulating valve, and a pressure sensor is also installed at the pipe where the acoustic temperature measuring instrument is inserted into the vertical flue to measure the real-time negative pressure value at the location of the acoustic temperature measuring instrument.

[0037] Referring to Figure 1, which is a schematic diagram of the steps of a furnace environment control method according to an embodiment of the present invention, the furnace environment control method includes:

[0038] S1, Measure the real-time negative pressure value at the acoustic temperature measuring instrument, and determine whether the real-time negative pressure value exceeds the preset negative pressure value;

[0039] S2, if the real-time negative pressure value exceeds the preset negative pressure value, then determine the opening control amount of the pressure regulating valve of the compressed air pipeline at the connection between the vertical flue of the incinerator and the acoustic temperature measuring instrument based on the real-time negative pressure value;

[0040] S3, the pressure regulating valve is adjusted in real time according to the opening control amount to control the air input into the furnace of the incinerator, reduce the pressure value at the connection between the instrument and the vertical flue of the incinerator, and ensure that the instrument is not damaged by the high-temperature flue gas overflowing from the vertical flue of the incinerator.

[0041] In other words, by equipping the furnace with a pressure regulating valve and a pressure sensor, and with the regulating valve connected to a compressed air pipeline, the airflow entering the furnace is automatically adjusted based on feedback from the pressure sensor. Thus, this application's control system can respond to pressure changes in real time, adjusting the furnace pressure by increasing or decreasing the airflow to maintain it within a safe and ideal operating range. This precise pressure regulation not only protects the furnace equipment but also helps optimize combustion efficiency and reduce emissions.

[0042] In one example, before determining the opening control amount of the pressure regulating valve of the compressed air pipeline at the connection between the vertical flue of the incinerator and the acoustic temperature measuring instrument based on the real-time negative pressure value, the method further includes: cooling the compressed air in the compressed air pipeline connected to the vertical flue of the incinerator.

[0043] It's important to note that cooling air reduces both the temperature and volume of compressed air, resulting in a higher density of compressed air entering the furnace. This increased air density helps improve combustion efficiency, as more oxygen can enter the furnace, thus more fully supporting the combustion process. Secondly, using cold air reduces the heat load entering the furnace, which helps maintain temperature control within the furnace and prevents incomplete combustion or excessive harmful emissions due to overheating. Furthermore, cooled air reduces the water vapor content in the compressed air system because it condenses water vapor more effectively, reducing humidity entering the furnace, further optimizing the combustion process and reducing corrosion risk. Therefore, this cooling process not only improves energy efficiency but also contributes to environmental protection and equipment maintenance, making furnace operation more stable and safer.

[0044] In one example, determining the opening control quantity of the pressure regulating valve of the compressed air pipeline at the connection between the vertical flue of the incinerator and the acoustic temperature measuring instrument based on the real-time negative pressure value includes: determining a first difference between the real-time negative pressure value and a preset negative pressure value, and multiplying the first difference by a preset proportional gain value to obtain a proportional control quantity; determining the integral of the difference between the real-time negative pressure value and the preset negative pressure value within a first historical period, and multiplying the integral of the difference by a preset integral gain value to obtain an integral control quantity, wherein the first historical period is a historical period of a first preset duration from the current time; determining the derivative of the difference between the real-time negative pressure value and the preset negative pressure value within a second historical period, and multiplying the derivative of the difference by a preset derivative gain value to obtain a derivative control quantity, wherein the second historical period is a historical period of a second preset duration from the current time; and summing the proportional control quantity, the integral control quantity, and the derivative control quantity to obtain the opening control quantity.

[0045] This control method combines proportional-integral-derivative mathematical concepts to ensure the acoustic temperature measuring instrument operates within a preset negative pressure range. First, a proportional control quantity is calculated based on the difference between the real-time negative pressure value and the preset negative pressure value to quickly adjust the system response. Second, the integral of the negative pressure difference over a certain time period is calculated and multiplied by a preset integral gain value to obtain the integral control quantity, used to eliminate system steady-state errors. Then, the derivative of the negative pressure difference is calculated and multiplied by a preset derivative gain value to obtain the differential control quantity, used to suppress system oscillations and improve response speed. Finally, the proportional, integral, and derivative control quantities are added to obtain the opening control quantity, which is used to adjust the pressure regulating valve to ensure the acoustic temperature measuring instrument operates stably within the preset negative pressure range.

[0046] For example: Suppose the current negative pressure at the device is -50Pa, and the preset negative pressure is -45Pa.

[0047] 1. Proportional control section: The proportional gain (Kp) is set to 0.5. That is, the ratio between the adjustment amount and the deviation is 1:0.5. The deviation is the difference between the current negative pressure value and the set value, that is, deviation = set value - current negative pressure = -45Pa - (-50Pa) = 5Pa. The proportional control amount = Kp * deviation = 0.5 * 5Pa = 2.5.

[0048] 2. Integral Control Section: The integral time (Ti) is set to 2 seconds. This is the time constant for the integral action. Integral control quantity = Ki * ∫(deviation dt), where ∫ represents the integral over time. Assuming the deviation at the previous moment was 10 Pa and the deviation at the current moment is 5 Pa, then the integral control quantity = Ki * (10 Pa * 1 s + 5 Pa * 1 s) = Ki * 15 s.

[0049] 3. Differential Control Section: The differential time (Td) is set to 2 seconds. This is the time constant for the differential action. The differential control quantity = Kd * d(deviation) / dt, which is the rate of change of the deviation. Assuming the deviation at the previous moment was 5 Pa and the deviation at the current moment is also 5 Pa, then the differential control quantity = Kd * (5 Pa / s - 5 Pa / s) = 0.

[0050] Based on the above calculations, the proportional, integral, and derivative control values ​​are obtained as 2.5, 15, and 0, respectively. These control values ​​are then summed to obtain the opening control value. This signal is then used to adjust the pressure regulating valve, gradually bringing the negative pressure at the device closer to the set value. In practical applications, this process is performed periodically to maintain the negative pressure at the device fluctuating around the set value.

[0051] In one example, before real-time adjustment of the pressure regulating valve according to the opening control amount to control air input into the furnace of the incinerator and reduce the pressure value at the connection between the instrument and the vertical flue of the incinerator, the control method further includes: measuring the negative pressure value at the inlet of the vertical flue of the incinerator and obtaining the combustion parameters of the furnace, wherein the combustion parameters include at least one of: fuel supply rate, air supply, combustion temperature, furnace pressure distribution, and furnace temperature distribution; predicting the negative pressure change trend of the furnace based on the negative pressure value at the inlet of the vertical flue of the incinerator and the combustion parameters of the furnace; and determining the opening control amount of the pressure regulating valve for connecting the compressed air pipeline in the furnace based on the real-time negative pressure value, including: adjusting the opening control amount according to the negative pressure change trend.

[0052] To further optimize the control process, the method also includes measuring the negative pressure at the inlet of the incinerator's vertical flue before adjusting the pressure regulating valve, and comprehensively considering combustion parameters in the furnace, such as fuel supply rate, air supply, combustion temperature, furnace pressure distribution, and furnace temperature distribution. These parameters are used to predict the negative pressure change trend in the furnace, thereby more accurately adjusting the opening control of the pressure regulating valve. By comprehensively using furnace pressure, temperature, and other combustion parameters, this method enables more detailed and proactive control of the furnace environment. The advantage of this control strategy is that it can predict and respond to potential pressure fluctuations in advance, rather than just reacting passively. This helps maintain optimal combustion conditions in the furnace, improve fuel utilization efficiency, reduce harmful emissions, and maximize system safety and stability. In addition, by optimizing combustion parameters and adjusting air input in real time, equipment life can be effectively extended and maintenance costs reduced, resulting in significant economic and environmental benefits.

[0053] In one example, before predicting the negative pressure change trend of the furnace based on the negative pressure value at the vertical flue inlet of the incinerator and the combustion parameters of the furnace, the control method further includes: collecting historical data, wherein the historical data includes the negative pressure value at the vertical flue inlet of the incinerator and the combustion parameters of the furnace; and performing data cleaning, missing value imputation, and outlier processing on the historical data to ensure the data quality of the historical data; and establishing a prediction model of the negative pressure change trend of the furnace using a neural network, wherein the input layer of the prediction model is used to input the negative pressure value at the vertical flue inlet of the incinerator and the combustion parameters of the furnace, and the output layer of the prediction model is used to output the negative pressure change trend of the furnace. The historical data is divided into a training set and a validation set. The prediction model is trained using the training set, and the network parameters of the prediction model are adjusted using a backpropagation algorithm during training to optimize the prediction model. The network parameters include the number of network layers, the number of neurons in each layer, and the learning rate. The prediction model is validated using the validation set to obtain multiple evaluation metrics. If the evaluation metrics of the prediction model fail to meet the preset standards, the network parameters of the prediction model are further adjusted using the backpropagation algorithm to optimize the prediction model until the evaluation metrics of the prediction model meet the preset standards. The evaluation metrics include mean squared error and root mean square error.

[0054] Furthermore, based on the negative pressure value at the inlet of the vertical flue of the incinerator and the combustion parameters of the furnace, the negative pressure change trend of the furnace is predicted, including: inputting the negative pressure value at the inlet of the vertical flue of the incinerator and the combustion parameters of the furnace into the evaluation index and obtaining the negative pressure change trend of the furnace through a prediction model with preset standards.

[0055] This example details a method for predicting negative pressure trends in a furnace environment using a neural network model. The method first involves collecting and processing historical data on negative pressure values ​​and related combustion parameters at the inlet of the incinerator's vertical flue. The collection of historical data is fundamental for building an accurate prediction model; this data includes, but is not limited to, pressure distribution within the furnace, combustion temperature, and fuel supply rate. To ensure the reliability and validity of the data, further data cleaning, missing value imputation, and outlier handling are crucial steps for ensuring the accuracy of model training. Next, using the cleaned data, a neural network is employed to build a prediction model for negative pressure trends. This model receives the negative pressure values ​​and combustion parameters at the incinerator's vertical flue inlet through an input layer, and outputs the predicted negative pressure trend through an output layer. During model building, the dataset is divided into a training set and a validation set. The training set is used to train the neural network, and the validation set is used to evaluate the model's performance. The neural network is trained using a backpropagation algorithm to adjust network parameters, including the number of layers, the number of neurons per layer, and the learning rate, to optimize the accuracy of the prediction model. After model training, the validation set is used to evaluate the model's performance, with the main evaluation metrics including mean squared error and root mean square error. These evaluation metrics help determine whether the model's predictive performance meets the preset standards. If it does not meet the preset standards, the model will continue to be adjusted and optimized until the requirements are met. Ultimately, models that pass the preset standards through the evaluation metrics will be used to actually predict the negative pressure change trend in the furnace.

[0056] The advantage of this method lies in its significantly improved furnace operation safety and efficiency through highly automated and precise data processing and prediction processes. The neural network model can accurately predict future changes in negative pressure, providing operators with a powerful decision support tool. This not only provides early warnings of potential safety issues but also optimizes the combustion process and improves energy efficiency. This technology effectively reduces unexpected downtime and equipment wear, lowers maintenance costs, and ensures that environmental emissions meet regulations, thus having a positive impact on environmental protection. Furthermore, the continuous optimization and iterative updates of the model can cope with constantly changing operating conditions and environmental factors, giving it strong adaptability and long-term application value.

[0057] In one example, adjusting the start-up control quantity based on the negative pressure change trend includes: determining the predicted negative pressure value of the furnace at a target time based on the negative pressure change trend, where the target time is a future time point three preset time intervals from the current time; maintaining the start-up control quantity unchanged when the predicted negative pressure value is within a preset range; lowering the start-up control quantity when the preset negative pressure value is lower than a first threshold, where the first threshold is the endpoint value of the preset range; and increasing the start-up control quantity when the preset negative pressure value is higher than a second threshold, where the second threshold is the endpoint value of the preset range.

[0058] This example describes a method for controlling negative pressure within the furnace, with particular emphasis on the strategy of adjusting the opening control of the pressure regulating valve based on predicted future negative pressure values. First, the negative pressure value at the target time is calculated using an established prediction model. Based on this prediction, if the predicted negative pressure value is within a set safety range, the opening control of the pressure regulating valve remains unchanged to maintain a stable furnace environment. If the predicted negative pressure value is below a first threshold, indicating that the future pressure within the furnace may be too low, the opening of the pressure regulating valve is reduced to decrease air inflow and thus increase the pressure within the furnace. Conversely, if the predicted negative pressure value is above a second threshold, indicating that the future pressure may be too high, the opening of the pressure regulating valve is increased to increase air inflow and reduce the pressure within the furnace.

[0059] The advantage of this predictive control method lies in its ability to anticipate potential pressure issues, resulting in more stable and safer furnace operation. With the help of predictive models, operators can take measures before pressure anomalies occur, effectively preventing equipment damage or safety accidents caused by pressure problems. This ensures efficient and continuous furnace operation while reducing energy waste. This not only improves the reliability of the furnace system but also enhances its environmental adaptability and economic benefits.

[0060] Referring to Figure 2, which is a structural framework diagram of a furnace environment control device according to an embodiment of the present invention, the furnace is equipped with an acoustic temperature measuring instrument, and the furnace is connected to a compressed air pipeline via a pressure regulating valve. The furnace environment control device includes:

[0061] Judgment unit 1 determines whether the real-time negative pressure value at the acoustic temperature measuring instrument exceeds the preset negative pressure value based on the measured real-time negative pressure value.

[0062] The determining unit 2 is used to determine the opening control amount of the pressure regulating valve of the compressed air pipeline at the connection between the vertical flue of the incinerator and the acoustic temperature measuring instrument based on the real-time negative pressure value if the real-time negative pressure value exceeds the preset negative pressure value.

[0063] The control unit 3 is used to adjust the pressure regulating valve in real time according to the opening control amount, control the air input to the furnace of the incinerator, reduce the pressure value at the connection between the instrument and the vertical flue of the incinerator, and ensure that the instrument is not damaged by the high temperature flue gas overflowing from the vertical flue of the incinerator.

[0064] In this embodiment, the specific implementation of each unit in the above device embodiment is described in the above method embodiment, and will not be repeated here.

[0065] Referring to Figure 3, which is a structural framework diagram of a furnace environment control device according to an embodiment of the present invention, the furnace is equipped with an acoustic temperature measuring instrument, and the furnace environment control device includes:

[0066] Compressed air cooling module 4 is installed inside the compressed air pipeline and is used to cool the compressed air inside the compressed air pipeline;

[0067] Multiple negative pressure monitoring points 5 are respectively set on the acoustic temperature measuring instrument and inserted into the vertical flue inlet of the incinerator to measure the negative pressure value at the acoustic temperature measuring instrument and the negative pressure value at the vertical flue inlet of the incinerator.

[0068] Distributed control node 6 is communicatively connected to the multiple negative pressure monitoring points and pressure regulating valves. It is used to acquire the negative pressure value at the acoustic temperature measuring instrument and the negative pressure value at the inlet of the vertical flue of the incinerator. Based on the negative pressure values ​​at the acoustic temperature measuring instrument and the inlet of the vertical flue of the incinerator, it controls and adjusts the pressure regulating valves to keep the acoustic temperature measuring instrument within a preset negative pressure range. The pressure regulating valve is used to control the output of the compressed air pipeline, and the compressed air pipeline is used to adjust the temperature and pressure values ​​inside the furnace.

[0069] In this embodiment, the specific implementation of the compressed air cooling module, multiple negative pressure monitoring points, and distributed control nodes in the above-described equipment embodiments can be referred to the method embodiments described above, and will not be repeated here.

[0070] Referring to Figure 4, this embodiment of the invention also provides a computer device, which can be a server, and its internal structure can be as shown in Figure 4. The computer device includes a processor, memory, display screen, input device, network interface, and database connected via a system bus. The processor in this computer design provides computing and control capabilities. The memory of the computer device includes a non-volatile storage medium and internal memory. The non-volatile storage medium stores an operating system, computer programs, and a database. The internal memory provides an environment for the operation of the operating system and computer programs in the non-volatile storage medium. The database of the computer device is used to store the data corresponding to this embodiment. The network interface of the computer device is used for communication with external terminals via a network connection. When the computer program is executed by the processor, it implements the above-described method.

[0071] Those skilled in the art will understand that the structure shown in Figure 4 is merely a block diagram of a portion of the structure related to the present invention and does not constitute a limitation on the computer device to which the present invention is applied.

[0072] An embodiment of 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 method. It is understood that the computer-readable storage medium in this embodiment can be a volatile readable storage medium or a non-volatile readable storage medium.

[0073] In summary, this invention provides a method, apparatus, device, computer equipment, and computer-readable storage medium for regulating the furnace environment. The compressed air in the compressed air pipeline connected to the furnace is cooled. Then, by measuring the real-time negative pressure value at the acoustic temperature measuring instrument and adjusting the pressure regulating valve in real time based on this value, the temperature and pressure inside the furnace are reduced, keeping the acoustic temperature measuring instrument within a preset negative pressure range. This effectively prevents damage to the acoustic temperature measuring device from high temperatures. By cooling the compressed air in the compressed air pipeline and adjusting the pressure regulating valve in real time, the acoustic temperature measuring instrument can be kept within a safe negative pressure range, thus protecting it from damage. In this way, the stability and reliability of the entire system are improved, thereby extending the service life of the acoustic temperature measuring device and ensuring safe operation during waste incineration and biomass application.

[0074] Furthermore, this scheme also includes measuring the negative pressure at the inlet of the vertical flue of the incinerator and obtaining combustion parameters in the furnace, such as fuel supply rate, air supply, combustion temperature, furnace pressure distribution, and furnace temperature distribution. Based on these parameters, the negative pressure change trend in the furnace is predicted, and the pressure regulating valve is pre-controlled according to the prediction results to ensure that the acoustic temperature measuring instrument is within the preset negative pressure range. By implementing this technical solution, the problem of high-temperature damage to the acoustic temperature measuring device can be effectively prevented. Predicting the negative pressure change trend based on furnace combustion parameters also helps to ensure safe operation during waste incineration and biomass application, extends the service life of the acoustic temperature measuring device, and improves the stability and reliability of the system.

[0075] Those skilled in the art will understand that all or part of the processes in the methods of the above embodiments can be implemented by a computer program instructing related hardware. The computer program can be stored in a non-volatile computer-readable storage medium. When executed, the computer program can include the processes of the embodiments of the above methods. Any references to memory, storage, databases, or other media used in the present invention and embodiments can include non-volatile and / or volatile memory. Non-volatile memory can include read-only memory (ROM), programmable ROM (PROM), electrically programmable ROM (EPROM), electrically erasable programmable ROM (EEPROM), or flash memory. Volatile memory can include random access memory (RAM) or external cache memory. By way of illustration and not limitation, RAM is available in various forms, such as static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), dual-rate SDRAM (SSRSDRAM), enhanced SDRAM (ESDRAM), synchronous link DRAM (SLDRAM), Rambus direct RAM (RDRAM), direct memory bus dynamic RAM (DRDRAM), and memory bus dynamic RAM, etc.

[0076] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, apparatus, article, or method that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, apparatus, article, or method. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, apparatus, article, or method that includes that element.

[0077] The above description is only a preferred embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural or procedural transformations made based on the content of the present invention specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present invention.

Claims

1. A method for controlling the furnace environment, characterized in that, An acoustic temperature measuring instrument is installed on the vertical flue wall of the incinerator, and the instrument is connected to a compressed air pipeline via a pressure regulating valve at the location where the instrument is connected to the vertical flue of the incinerator. The pressure regulating valve is installed on the compressed air pipeline, and the regulation method includes: Measure the real-time negative pressure value at the acoustic temperature measuring instrument and determine whether the real-time negative pressure value exceeds the preset negative pressure value; If the real-time negative pressure value exceeds the preset negative pressure value, the opening control amount of the pressure regulating valve of the compressed air pipeline at the connection between the vertical flue of the incinerator and the acoustic temperature measuring instrument is determined according to the real-time negative pressure value. The pressure regulating valve is adjusted in real time according to the opening control amount to control the air input into the furnace of the incinerator, reduce the pressure value at the connection between the instrument and the vertical flue of the incinerator, and ensure that the instrument is not damaged by the high-temperature flue gas overflowing from the vertical flue of the incinerator.

2. The control method according to claim 1, characterized in that, Before determining the opening control amount of the pressure regulating valve of the compressed air pipeline at the connection between the vertical flue of the incinerator and the acoustic temperature measuring instrument based on the real-time negative pressure value, the method further includes: cooling the compressed air in the compressed air pipeline connected to the vertical flue of the incinerator.

3. The control method according to claim 1, characterized in that, A pressure sensor is also installed at the point where the acoustic temperature measuring instrument is inserted into the vertical flue pipe to measure the real-time negative pressure value at the acoustic temperature measuring instrument.

4. The control method according to claim 1, characterized in that, The opening control amount of the pressure regulating valve of the compressed air pipeline at the connection between the vertical flue of the incinerator and the acoustic temperature measuring instrument is determined based on the real-time negative pressure value, including: Determine the first difference between the real-time negative pressure value and the preset negative pressure value, and multiply the first difference by the preset proportional gain value to obtain the proportional control value; The integral difference between the real-time negative pressure value and the preset negative pressure value is determined within the first historical period, and the integral difference is multiplied by the preset integral gain value to obtain the integral control quantity. The first historical period is a historical period of a first preset duration from the current time. The differential difference between the real-time negative pressure value and the preset negative pressure value is determined within the second historical period, and the differential control quantity is obtained by multiplying the differential difference by the preset differential gain value. The second historical period is a historical period with a second preset duration from the current time. The proportional control quantity, the integral control quantity, and the derivative control quantity are summed to obtain the activation control quantity.

5. The control method according to claim 1, characterized in that, Before real-time regulation of the pressure regulating valve based on the opening control quantity to control air input into the furnace of the incinerator and reduce the pressure value at the connection between the instrument and the vertical flue of the incinerator, the regulation method further includes: The negative pressure value at the inlet of the vertical flue of the incinerator is measured, and the combustion parameters of the furnace are obtained, wherein the combustion parameters include at least one of the following: fuel supply rate, air supply, combustion temperature, furnace pressure distribution, and furnace temperature distribution; based on the negative pressure value at the inlet of the vertical flue of the incinerator and the combustion parameters of the furnace, the negative pressure change trend of the furnace is predicted. Determining the opening control amount of the pressure regulating valve for connecting the compressed air pipeline in the furnace based on the real-time negative pressure value includes: adjusting the opening control amount according to the negative pressure change trend.

6. The control method according to claim 5, characterized in that, Before predicting the trend of negative pressure change in the furnace based on the negative pressure value at the vertical flue inlet of the incinerator and the combustion parameters of the furnace, the control method further includes: Historical data is collected, including the negative pressure value at the vertical flue inlet of the incinerator and the combustion parameters of the furnace; and the historical data is cleaned, missing values ​​are filled, and outliers are processed to ensure the data quality of the historical data. A neural network is used to establish a predictive model for the negative pressure change trend in the furnace. The input layer of the predictive model is used to input the negative pressure value at the vertical flue inlet of the incinerator and the combustion parameters of the furnace. The output layer of the predictive model is used to output the negative pressure change trend in the furnace. The historical data is divided into a training set and a validation set, and the prediction model is trained using the training set. During the training process, the network parameters of the prediction model are adjusted through the backpropagation algorithm to optimize the prediction model. The network parameters include: the number of network layers, the number of neurons in each layer, and the learning rate. The prediction model is validated using the validation set to obtain multiple evaluation metrics. If the evaluation metrics of the prediction model fail to meet the preset standards, the network parameters of the prediction model are adjusted using the backpropagation algorithm to optimize the prediction model until the evaluation metrics of the prediction model meet the preset standards. The evaluation metrics include mean square error and root mean square error. Based on the negative pressure value at the vertical flue inlet of the incinerator and the combustion parameters of the furnace, the negative pressure change trend of the furnace is predicted, including: inputting the negative pressure value at the vertical flue inlet of the incinerator and the combustion parameters of the furnace into the evaluation index and obtaining the negative pressure change trend of the furnace through a prediction model with preset standards.

7. The control method according to claim 5, characterized in that, Adjusting the opening control amount based on the negative pressure change trend includes: Based on the negative pressure change trend, the predicted negative pressure value of the furnace at the target time is determined, where the target time is a future time point three preset time intervals away from the current time. If the predicted negative pressure value is within a preset range, the opening control value remains unchanged; When the preset negative pressure value is lower than the first threshold, the opening control amount is reduced, where the first threshold is the endpoint value of the preset range; If the preset negative pressure value is higher than the second threshold, the opening control amount is increased, where the second threshold is the endpoint value of the preset range.

8. A furnace environment control device, characterized in that, An acoustic temperature measuring instrument is installed on the vertical flue wall of the incinerator. A pressure sensor is also installed at the point where the acoustic temperature measuring instrument is inserted into the vertical flue. A compressed air pipe, connected to the location where the acoustic temperature measuring instrument enters the vertical flue of the incinerator via a pressure regulating valve, is also present. The control device includes: The judgment unit determines whether the real-time negative pressure value exceeds the preset negative pressure value based on the measured real-time negative pressure value at the acoustic temperature measuring instrument. The determining unit is used to determine the opening control amount of the pressure regulating valve of the compressed air pipeline at the connection between the vertical flue of the incinerator and the acoustic temperature measuring instrument based on the real-time negative pressure value if the real-time negative pressure value exceeds the preset negative pressure value. The control unit is used to adjust the pressure regulating valve in real time according to the opening control amount, control the air input into the furnace of the incinerator, reduce the pressure value at the connection between the instrument and the vertical flue of the incinerator, and ensure that the instrument is not damaged by the high-temperature flue gas overflowing from the vertical flue of the incinerator.

9. The furnace environment control device according to claim 8, characterized in that, Also includes: A compressed air cooling module is installed inside a compressed air pipeline and is used to cool the compressed air inside the compressed air pipeline. Multiple negative pressure monitoring points are respectively set at the inlet of the vertical flue of the incinerator where the acoustic temperature measuring instrument is connected, for measuring the negative pressure value at the acoustic temperature measuring instrument and the negative pressure value at the inlet of the vertical flue of the incinerator; A distributed control node is communicatively connected to the multiple negative pressure monitoring points and pressure regulating valves. It acquires the negative pressure values ​​at the acoustic temperature measuring instrument and the negative pressure value at the inlet of the incinerator's vertical flue. Based on these values, it controls and adjusts the pressure regulating valves to keep the acoustic temperature measuring instrument within a preset negative pressure range. The pressure regulating valves control the output of the compressed air pipeline, and the compressed air pipeline is used to adjust the temperature and pressure values ​​within the furnace.

10. A computer device comprising a memory and a processor, wherein the memory stores a computer program, characterized in that, When the processor executes the computer program, it implements the steps of the method according to any one of claims 1 to 7.

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