Method, device and equipment for regulating furnace environment and computer device

Abstract

The present application relates to the method and device for regulating the furnace environment, computer equipment and storage medium, through the pressure regulating valve and pressure sensor are equipped in the furnace, and the pressure regulating valve is connected to a compressed air pipeline, according to the feedback of the pressure sensor, the air flow into the furnace is automatically adjusted.At this time, the present application can respond to pressure changes in real time through this regulation system, and the pressure in the furnace is adjusted by increasing or decreasing the air flow, so as to keep it in the safe and ideal working range.This fine pressure regulation not only protects the furnace equipment, but also helps to optimize the combustion efficiency and reduce emissions.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of data processing, and in particular relates to a furnace environment regulation method and device, computer equipment and a storage medium. BACKGROUND

[0002] In a coal or gas-fired boiler, acoustic temperature measurement technology measures the propagation speed of sound waves during the combustion process to accurately measure and monitor the combustion temperature. This technology is widely used in coal or gas-fired boilers because the combustion process of fuels such as coal and natural gas is relatively stable, and the temperature change is relatively controllable.

[0003] However, in the process of waste incineration and biomass application, the calorific value of the waste and biomass fuel used is usually unstable, and the combustion process often presents a fluctuating state. This instability can cause the negative pressure in the furnace to present a micro-positive pressure condition for a short time, which can cause the measuring element of the acoustic temperature measurement device to be damaged by high temperature. SUMMARY

[0004] The main purpose of the present application is to provide a furnace environment regulation method and device, computer equipment and a storage medium to solve the problem that micro-positive pressure conditions can cause the measuring element of the acoustic temperature measurement device to be damaged by high temperature.

[0005] To achieve the above-mentioned purpose, the present application provides a furnace environment regulation method, wherein the vertical flue wall of an incinerator is provided with an acoustic temperature measurement instrument, and the instrument is connected to a compressed air pipeline through a pressure regulating valve at the position of the vertical flue of the incinerator. The regulation method comprises the following steps: measuring the real-time negative pressure value at the acoustic temperature measurement 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 position of the vertical flue of the incinerator and the acoustic temperature measurement instrument according to the real-time negative pressure value; and controlling the air input into the furnace of the incinerator in real time according to the opening control amount to reduce the pressure value at the connection position of the instrument and the vertical flue of the incinerator, thereby preventing the instrument from being damaged by the high-temperature flue gas overflowing from the vertical flue of the incinerator.

[0006] A pressure sensor is also installed at the position where the acoustic temperature measurement instrument is inserted into the pipeline of the vertical flue, for measuring the negative pressure value at the acoustic temperature measurement instrument.

[0007] Optionally, before determining the opening control amount of the pressure regulating valve of the compressed air pipeline at the connection position of the vertical flue of the incinerator and the acoustic temperature measurement instrument according to the real-time negative pressure value, the method further comprises: cooling the compressed air in the compressed air pipeline connected to the vertical flue of the incinerator.

[0008] Optionally, 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, including: determining a first difference value between the real-time negative pressure value and a preset negative pressure value, and multiplying the first difference value by a preset proportional gain value to obtain a proportional control amount; determining an integral of a difference value between the real-time negative pressure value and the preset negative pressure value in a first historical period, and multiplying the integral of the difference value by a preset integral gain value to obtain an integral control amount, the first historical period being a historical period of a first preset time length from the current time; determining a differential of the difference value between the real-time negative pressure value and the preset negative pressure value in a second historical period, and multiplying the differential of the difference value by a preset differential gain value to obtain a differential control amount, the second historical period being a historical period of a second preset time length from the current time; and adding the proportional control amount, the integral control amount and the differential control amount to obtain the opening control amount.

[0009] Optionally, before the real-time regulation of the pressure regulating valve according to the opening control amount is performed to control the input of air into the hearth of the incinerator and to reduce the pressure value at the connection between the instrument and the vertical flue of the incinerator, the regulation 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 hearth, wherein the combustion parameters include at least one of: fuel supply rate, air supply amount, combustion temperature, pressure distribution in the hearth and temperature distribution in the hearth; predicting the negative pressure change trend of the hearth according to the negative pressure value at the inlet of the vertical flue of the incinerator and the combustion parameters of the hearth; and determining the opening control amount of the pressure regulating valve of the hearth for connecting the compressed air pipeline according to 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 hearth according to the negative pressure value at the inlet of the vertical flue of the incinerator and the combustion parameters of the hearth, the regulation method further comprises: collecting historical data, wherein the historical data comprises the negative pressure value at the inlet of the vertical flue of the incinerator and the combustion parameters of the hearth; and performing data cleaning, missing value filling and outlier processing on the historical data to ensure the data quality of the historical data; establishing a prediction model of the negative pressure change trend of the hearth by using a neural network, wherein an 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 hearth, and an output layer of the prediction model is used to output the negative pressure change trend of the hearth; dividing the historical data into a training set and a validation set, and training the prediction model by using the training set, and adjusting network parameters of the prediction model by using a back propagation algorithm during the training process to optimize the prediction model, wherein the network parameters comprise the number of layers of the network, the number of neurons in each layer and the learning rate; verifying the prediction model by using the validation set, obtaining a plurality of evaluation indexes, and in the case that the evaluation indexes of the prediction model do not pass a preset standard, continuing to adjust the network parameters of the prediction model by using the back propagation algorithm to optimize the prediction model until the evaluation indexes of the prediction model pass the preset standard, wherein the evaluation indexes comprise mean square error and root mean square error.

[0011] Optionally, predicting the negative pressure change trend of the hearth according to the negative pressure value at the inlet of the vertical flue of the incinerator and the combustion parameters of the hearth comprises: inputting the negative pressure value at the inlet of the vertical flue of the incinerator and the combustion parameters of the hearth into the prediction model whose evaluation indexes pass the preset standard to obtain the negative pressure change trend of the hearth.

[0012] Optionally, adjusting the opening control quantity according to the negative pressure change trend comprises: determining a predicted negative pressure value of the hearth at a target time based on the negative pressure change trend, the target time being a future time point that is a third preset time length away from the current time; maintaining the opening control quantity unchanged in the case that the predicted negative pressure value is within a preset range; reducing the opening control quantity in the case that the predicted negative pressure value is lower than a first threshold value, the first threshold value being an endpoint value of the preset range; and increasing the opening control quantity in the case that the predicted negative pressure value is higher than a second threshold value, the second threshold value being an endpoint value of the preset range.

[0013] The application provides a furnace environment regulating device, wherein a vertical flue wall of an incinerator is provided with a sound wave temperature measuring instrument, and the instrument is connected with a compressed air pipeline through a pressure regulating valve at a position of the vertical flue of the incinerator; the regulating device comprises: a judging unit for judging whether a real-time negative pressure value at the sound wave temperature measuring instrument exceeds a preset negative pressure value according to the measured real-time negative pressure value; a determining unit for determining an opening control amount of the pressure regulating valve of the compressed air pipeline at the connection position of the vertical flue of the incinerator and the sound wave temperature measuring instrument according to the real-time negative pressure value if the real-time negative pressure value exceeds the preset negative pressure value; and a regulating unit for regulating the pressure regulating valve in real time according to the opening control amount, controlling air input into a furnace of the incinerator, reducing the pressure value at the connection position of the instrument and the vertical flue of the incinerator, and ensuring that the instrument is not damaged by high-temperature flue gas overflowing from the vertical flue of the incinerator.

[0014] A pressure sensor is installed at a pipeline where the sound wave temperature measuring instrument is inserted into the vertical flue, and is used for measuring the real-time negative pressure value at the sound wave temperature measuring instrument.

[0015] The application provides a furnace environment regulating device, wherein a vertical flue wall of an incinerator is provided with a sound wave temperature measuring instrument, and the instrument is connected with a compressed air pipeline through a pressure regulating valve at a position of the vertical flue of the incinerator; the regulating device comprises: a judging unit for judging whether a real-time negative pressure value at the sound wave temperature measuring instrument exceeds a preset negative pressure value according to the measured real-time negative pressure value; a determining unit for determining an opening control amount of the pressure regulating valve of the compressed air pipeline at the connection position of the vertical flue of the incinerator and the sound wave temperature measuring instrument according to the real-time negative pressure value if the real-time negative pressure value exceeds the preset negative pressure value; and a regulating unit for regulating the pressure regulating valve in real time according to the opening control amount, controlling air input into a furnace of the incinerator, reducing the pressure value at the connection position of the instrument and the vertical flue of the incinerator, and ensuring that the instrument is not damaged by high-temperature flue gas overflowing from the vertical flue of the incinerator.

[0016] A pressure sensor is installed at a pipeline where the sound wave temperature measuring instrument is inserted into the vertical flue, and is used for measuring the real-time negative pressure value at the sound wave temperature measuring instrument.

[0017] The application further provides a computer device comprising a memory and a processor, wherein the memory stores a computer program, and the processor implements the steps of the method according to any one of the preceding embodiments when executing the computer program.

[0018] The application further provides a computer readable storage medium, which stores a computer program, and the computer program implements the steps of the method according to any one of the preceding embodiments when executed by a processor.

[0019] The application has the following advantages:

[0020] Real-time and accuracy: By measuring and monitoring the negative pressure value at the vertical flue wall of the incinerator with a sound wave temperature instrument in real time, the system can quickly respond to changes in the pressure inside the furnace. Once the negative pressure value exceeds the preset safety threshold, the control measures are immediately taken to effectively prevent potential damage to the instrument by high-temperature flue gas, improving the safety and stability of the system.

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

[0022] Protect the safety of the instrument: By injecting compressed air into the furnace, the pressure 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 sound wave temperature instrument from high temperature and corrosion, prolonging the service life of the instrument.

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

[0024] Improve system reliability: This control method not only protects the key instrument equipment, but also ensures the stable operation of the incinerator under complex working conditions through real-time monitoring and

[0025] Automatic adjustment, which is of great significance to improve the reliability and operating efficiency of the entire incineration system.

[0026] Easy to maintain: Due to the use of intelligent control mechanism, the frequency of manual operation and maintenance is reduced, and the maintenance cost is reduced. At the same time, when the system fails, the problem can be quickly located by analyzing real-time data and historical records, facilitating maintenance and recovery.

[0027] In summary, the embodiment of the present application proposes a method, device, equipment, computer device and computer readable storage medium for regulating the environment of the furnace. By equipping the furnace with a pressure regulating valve and a pressure sensor, and connecting the pressure regulating valve to a compressed air pipeline, the air flow into the furnace is automatically adjusted according to the feedback of the pressure sensor. At this time, the present application can respond to pressure changes in real time through this control system, and adjust the pressure inside the furnace by increasing or decreasing the air flow, keeping it within a safe and ideal working range. This fine pressure regulation not only protects the furnace equipment, but also helps to optimize the combustion efficiency and reduce emissions. BRIEF DESCRIPTION OF DRAWINGS

[0028] Figure 1 is a schematic diagram of the method steps for regulating the furnace environment in an embodiment of the present application;

[0029] Figure 2 is a structural block diagram of the furnace environment regulating device in an embodiment of the present application;

[0030] Figure 3 is a structural block diagram of the furnace environment regulating device in an embodiment of the present application;

[0031] Figure 4 is a structural schematic block diagram of the computer device in an embodiment of the present application.

[0032] The implementation of the object, functional features and advantages of the present application will be further described with reference to the accompanying drawings in conjunction with the embodiments. DETAILED DESCRIPTION

[0033] In order to make the object, technical scheme and advantages of the present application more clear, the present application will be further described in detail below in conjunction with the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and do not limit the present application.

[0034] It should be noted that the furnace is the core part of the coal-fired gas boiler, mainly used for burning coal, natural gas and other fuels to produce heat. In the furnace, fuel is mixed with air and burns, releasing a large amount of heat, which is then used to heat water or other working fluids to produce steam or hot water for heating or industrial use. The design of the furnace ensures that the fuel can be completely burned in a high-temperature and controlled environment to improve energy efficiency and reduce emissions.

[0035] The structure of the furnace usually includes inner walls made of refractory materials that can withstand extremely high temperatures without being damaged. The shape, size and design details of the furnace vary depending on the type of fuel burned and the output requirements of the boiler. In order to optimize the combustion process and control the temperature generated by combustion, modern furnaces are equipped with various sensors and control systems. Among them, the acoustic temperature measuring instrument is an advanced monitoring device that measures temperature by analyzing the speed of sound propagation in the furnace, because the speed of sound is directly affected by temperature. This allows the operator to accurately control the temperature in the furnace, ensuring efficient combustion of fuel and minimizing heat loss.

[0036] In order to maintain the appropriate pressure in the furnace and avoid equipment damage or safety accidents caused by abnormal pressure, the present application is equipped with a pressure regulating valve and a pressure sensor in the furnace, and provides a set of furnace environment regulating method based on the pressure regulating valve and the pressure sensor.

[0037] The vertical flue wall of the incinerator is provided with a sound wave temperature instrument, and the sound wave temperature instrument is connected with a compressed air pipeline through a pressure regulating valve at the position of the vertical flue of the incinerator, a pressure regulating valve is installed on the compressed air pipeline, and a pressure sensor is also installed at the position where the sound wave temperature instrument is inserted into the vertical flue to measure the real-time negative pressure value at the sound wave temperature instrument.

[0038] Referring to Figure 1 , Figure 1 is a step schematic diagram of a furnace environment regulation method in an embodiment of the present application. The furnace environment regulation method comprises:

[0039] S1, measuring the real-time negative pressure value at the sound wave temperature instrument, and determining whether the real-time negative pressure value exceeds a preset negative pressure value;

[0040] S2, if the real-time negative pressure value exceeds the preset negative pressure value, determining an opening control amount of the pressure regulating valve of the compressed air pipeline connected with the sound wave temperature instrument at the vertical flue of the incinerator according to the real-time negative pressure value;

[0041] S3, real-time regulating the pressure regulating valve according to the opening control amount, controlling air input into the furnace of the incinerator, reducing the pressure value at the position where the instrument is connected with the vertical flue of the incinerator, and ensuring that the instrument is not damaged by the high-temperature flue gas overflowing from the vertical flue of the incinerator.

[0042] In other words, by equipping the furnace with a pressure regulating valve and a pressure sensor, and connecting the pressure regulating valve to a compressed air pipeline, the air flow entering the furnace is automatically adjusted according to the feedback of the pressure sensor. At this time, the present application can respond to pressure changes in real time through this regulation system, and adjust the pressure in the furnace by increasing or decreasing the air flow, keeping it within a safe and ideal working range. This fine pressure regulation not only protects the furnace equipment, but also helps to optimize combustion efficiency and reduce emissions.

[0043] In one example, before determining the opening control amount of the pressure regulating valve of the compressed air pipeline connected with the sound wave temperature instrument at the vertical flue of the incinerator according to the real-time negative pressure value, the method further comprises: cooling the compressed air in the compressed air pipeline connected with the vertical flue of the incinerator.

[0044] It is worth noting that cooling air can reduce the temperature and volume of air, making the compressed air entering the furnace have a higher density. 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 can reduce the heat load entering the furnace, which helps maintain temperature control in the furnace, avoiding incomplete combustion or excessive harmful emissions due to excessive temperature. In addition, the cooled air can also reduce the content of water vapor in the compressed air system, as cold air can more effectively condense water vapor, thus 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 helps environmental protection and equipment maintenance, making the furnace operation more stable and safe.

[0045] In one example, 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 according to 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 amount; determining the integral of the difference between the real-time negative pressure value and the preset negative pressure value in a first historical period, and multiplying the integral of the difference by a preset integral gain value to obtain an integral control amount, the first historical period being a historical period of a first preset time length from the current time; determining the differential of the difference between the real-time negative pressure value and the preset negative pressure value in a second historical period, and multiplying the differential of the difference by a preset differential gain value to obtain a differential control amount, the second historical period being a historical period of a second preset time length from the current time; and adding the proportional control amount, the integral control amount, and the differential control amount to obtain the opening control amount.

[0046] This control method combines proportional-integral-differential mathematical concepts to ensure that the acoustic temperature measuring instrument is within the preset negative pressure range. First, the proportional control amount 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 value difference over a certain time period is calculated, and then multiplied by a preset integral gain value to obtain an integral control amount, which is used to eliminate system steady-state error. Then, the differential of the negative pressure value difference is calculated, and then multiplied by a preset differential gain value to obtain a differential control amount, which is used to suppress system oscillation and improve response speed. Finally, the proportional, integral, and differential control amounts are added to obtain the opening control amount, and the pressure regulating valve is adjusted accordingly to ensure that the acoustic temperature measuring instrument works stably within the preset negative pressure range.

[0047] For example, assume that the current negative pressure value at the current device is -50 Pa and the preset negative pressure value is -45 Pa.

[0048] 1. Proportional control part: the proportional gain (Kp) is set to 0.5. That is, the proportional relationship 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, i.e., deviation = set value - current negative pressure = -45 Pa - (-50 Pa) = 5 Pa. The proportional control amount = Kp*deviation = 0.5*5 Pa = 2.5.

[0049] 2. Integral control part: the integral time (Ti) is set to 2 seconds. The time constant of integral action. The integral control amount = Ki*∫(deviation dt), where ∫ represents the integral over time. Assuming that the deviation at the previous time is 10 Pa and the current time is 5 Pa, then the integral control amount = Ki*(10 Pa*1 s + 5 Pa*1 s) = Ki*15 s.

[0050] 3. Derivative control part: the derivative time (Td) is set to 2 seconds. The time constant of derivative action. The derivative control amount = Kd*d(deviation) / dt, i.e., the rate of change of the deviation. Assuming that the deviation at the previous time is 5 Pa and the current time is 5 Pa, then the derivative control amount = Kd*(5 Pa / s - 5 Pa / s) = 0.

[0051] According to the above calculation, the proportional, integral and derivative control amounts are obtained, which are 2.5, 15 and 0, respectively. Then these control amounts are added to obtain the opening control amount, and then the pressure regulating valve is adjusted according to this signal to gradually approach the set value of the negative pressure at the device. In practical application, this process is periodically carried out to maintain the negative pressure at the device near the set value.

[0052] In one example, before the real-time adjustment of the pressure regulating valve according to the opening control amount to control the 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 adjustment method further comprises: 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 amount, combustion temperature, pressure distribution in the furnace and temperature distribution in the furnace; predicting the negative pressure change trend of the furnace according to 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 of the furnace according to the real-time negative pressure value, comprising: adjusting the opening control amount according to the negative pressure change trend.

[0053] To further optimize the regulation process, the method also includes measuring the negative pressure value at the inlet of the vertical flue of the incinerator before adjusting the pressure regulating valve, and comprehensively considering the combustion parameters of the furnace, such as fuel supply rate, air supply amount, combustion temperature, pressure distribution in the furnace, and temperature distribution in the furnace. These parameters are used to predict the trend of negative pressure change in the furnace, and then more accurately adjust the opening control amount of the pressure regulating valve. By comprehensively using the pressure, temperature and other combustion parameters of the furnace, this method can achieve more detailed and forward-looking control of the furnace environment. The advantage of this control strategy is that it can predict and respond to possible pressure fluctuations in advance, rather than just being a passive response. This helps to maintain the optimal combustion conditions in the furnace, improves fuel utilization efficiency, reduces harmful emissions, and maximizes the safety and stability of the system. In addition, by optimizing the combustion parameters and adjusting the air input in real time, the service life of the equipment can be effectively extended, reducing maintenance costs, thereby bringing significant benefits in terms of economy and environmental protection.

[0054] In one example, before predicting the trend of negative pressure change in the furnace according to the negative pressure value at the inlet of the vertical flue of the incinerator and the combustion parameters of the furnace, the regulation 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 filling and outlier processing on the historical data to ensure the data quality of the historical data; using a neural network to establish a prediction model of the trend of negative pressure change in the furnace, 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 trend of negative pressure change in the furnace; dividing the historical data into a training set and a validation set, and using the training set to train the prediction model, and adjusting the network parameters of the prediction model through a backpropagation algorithm during the training process to optimize the prediction model, the network parameters including the number of layers of the network, the number of neurons in each layer and the learning rate; using the validation set to validate the prediction model, obtaining a plurality of evaluation indicators, and in the case that the evaluation indicators of the prediction model do not pass the preset standard, continuing to adjust the network parameters of the prediction model through the backpropagation algorithm to optimize the prediction model until the evaluation indicators of the prediction model pass the preset standard, wherein the evaluation indicators include mean squared error and root mean squared error.

[0055] Further, predicting the trend of negative pressure change in the furnace according to the negative pressure value at the inlet of the vertical flue of the incinerator and the combustion parameters of the furnace includes: inputting the negative pressure value at the inlet of the vertical flue of the incinerator and the combustion parameters of the furnace into the prediction model whose evaluation indicators pass the preset standard to obtain the trend of negative pressure change in the furnace.

[0056] This example describes a method of using a neural network model to predict the trend of negative pressure changes in the furnace environment. This method first involves collecting and processing historical data of negative pressure values at the inlet of the incinerator vertical flue and related combustion parameters. The collection of historical data is the basis for establishing an accurate prediction model, which includes but is not limited to the pressure distribution in the furnace, the combustion temperature and the fuel supply rate, etc. To ensure the reliability and effectiveness of the data, further data cleaning, missing value filling and outlier processing are carried out, which are the key to ensuring the accuracy of model training. Next, using the cleaned data, a neural network is used to establish a prediction model of the trend of negative pressure changes. This model receives the negative pressure values and combustion parameters at the inlet of the incinerator vertical flue through the input layer, and outputs the predicted trend of negative pressure changes through the output layer. In the process of establishing the model, the data set is divided into training set and validation set, where the training set is used to train the neural network and the validation set is used to evaluate the performance of the model. The training of the neural network uses the back propagation algorithm to adjust the network parameters, including the number of layers, the number of neurons in each layer and the learning rate, etc., to optimize the accuracy of the prediction model. After the model is trained, the performance of the model is evaluated using the validation set, and the main evaluation indicators include mean square error and root mean square error. These evaluation indicators help to determine whether the prediction effect of the model meets the preset standard. If it does not meet the preset standard, the model will continue to be adjusted and optimized until it meets the requirements. Finally, the model that meets the preset standard through the evaluation indicators will be used to actually predict the trend of negative pressure changes in the furnace.

[0057] The advantage of this method is that through highly automated and accurate data processing and prediction process, the safety and efficiency of the furnace operation are significantly improved. The neural network model can accurately predict the future changes of negative pressure, providing a powerful decision support tool for operators. This not only can alert potential safety problems in advance, but also can optimize the combustion process and improve energy efficiency. Through this technology, unexpected downtime and equipment damage can be effectively reduced, maintenance costs can be reduced, and environmental emissions can meet the specified standards, which has a positive impact on environmental protection. In addition, the continuous optimization and iterative update of the model can adapt to changing operating conditions and environmental factors, making it highly adaptable and long-term valuable.

[0058] In one example, the opening control amount is adjusted according to the trend of negative pressure changes, including: based on the trend of negative pressure changes, determining a predicted negative pressure value of the furnace at a target time, the target time being a future time point from the current time by a third preset time length; in the case that the predicted negative pressure value is within a preset range, maintaining the opening control amount unchanged; in the case that the predicted negative pressure value is lower than a first threshold value, the first threshold value being an endpoint value of the preset range, the opening control amount is adjusted lower; in the case that the predicted negative pressure value is higher than a second threshold value, the second threshold value being an endpoint value of the preset range, the opening control amount is adjusted higher.

[0059] In this example, the method of regulating the negative pressure in the furnace is described, and the strategy of adjusting the opening control amount of the pressure regulating valve based on the future predicted negative pressure value is emphasized. First, the negative pressure value at the target time is calculated by the established prediction model. According to the prediction result, if the predicted negative pressure value is within the set safety range, the opening control amount of the pressure regulating valve is kept unchanged to maintain the current stable furnace environment. If the predicted negative pressure value is lower than the first threshold value, it indicates that the pressure in the furnace may be too low in the future, so the opening amount of the pressure regulating valve is reduced to reduce the air inflow and increase the pressure in the furnace. Conversely, if the predicted negative pressure value is higher than the second threshold value, it indicates that the pressure may be too high in the future, so the opening amount of the pressure regulating valve is increased to increase the air inflow and reduce the pressure in the furnace.

[0060] The advantage of this prediction-based regulation method is that it can respond to potential pressure problems in advance, making the furnace operation more stable and safe. With the help of the prediction model, the operator can take measures before the pressure anomaly occurs, effectively preventing equipment damage or safety accidents caused by pressure problems, ensuring the efficient and continuous operation of the furnace, and reducing energy waste. This not only improves the reliability of the furnace system, but also enhances its environmental adaptability and economic benefits.

[0061] Reference Figure 2 , Figure 2 is the structural framework diagram of the furnace environment regulating device in an embodiment of the present application. The furnace is provided with a sound wave temperature measuring instrument, and the furnace is connected to a compressed air pipeline through a pressure regulating valve, and the furnace environment regulating device comprises:

[0062] A judgment unit 1 judges whether the real-time negative pressure value at the sound wave temperature measuring instrument exceeds the preset negative pressure value according to the measured real-time negative pressure value.

[0063] A determination unit 2 is used to determine the opening control amount of the pressure regulating valve of the compressed air pipeline connected to the sound wave temperature measuring instrument at the vertical flue of the incinerator if the real-time negative pressure value exceeds the preset negative pressure value.

[0064] A regulation unit 3 is used to regulate 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.

[0065] In this embodiment, the specific implementation of each unit in the above device embodiment is described in the above method embodiment, which will not be repeated here.

[0066] ReferenceFigure 3 , Figure 3 is a structural block diagram of a furnace environment regulating device in an embodiment of the present application. The furnace is provided with a sound wave temperature measuring instrument, and the furnace environment regulating device comprises:

[0067] a compressed air cooling module 4 arranged in the compressed air pipeline and used for cooling the compressed air in the compressed air pipeline;

[0068] a plurality of negative pressure monitoring points 5 arranged respectively at the sound wave temperature measuring instrument and inserted into the incinerator vertical flue inlet, and used for measuring the negative pressure values at the sound wave temperature measuring instrument and the incinerator vertical flue inlet;

[0069] a distributed control node 6, which is in communication connection with the plurality of negative pressure monitoring points and the pressure regulating valve, and used for obtaining the negative pressure values at the sound wave temperature measuring instrument and the incinerator vertical flue inlet, and controlling and adjusting the pressure regulating valve according to the negative pressure values at the sound wave temperature measuring instrument and the incinerator vertical flue inlet, so that the sound wave temperature measuring instrument is in a preset negative pressure range, wherein the pressure regulating valve is used for controlling the output of the compressed air pipeline, and the compressed air pipeline is used for adjusting the temperature value and the pressure value in the furnace.

[0070] In the embodiment, the specific implementation of the compressed air cooling module, the plurality of negative pressure monitoring points and the distributed control node in the device embodiment can be referred to the description in the method embodiment, which will not be described here.

[0071] With reference to Figure 4 , the embodiment of the present application further provides a computer device, which can be a server, and the internal structure thereof can be as shown in Figure 4 . The computer device comprises a processor, a memory, a display screen, an input device, a network interface and a database connected through a system bus. The processor of the computer device is used for providing computing and control capabilities. The memory of the computer device comprises a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system, a computer program and a database. The internal memory provides an environment for the operation of the operating system and the computer program in the non-volatile storage medium. The database of the computer device is used for storing the corresponding data in the embodiment. The network interface of the computer device is used for communicating with an external terminal through a network connection. The computer program is executed by the processor to implement the above method.

[0072] Those skilled in the art can understand Figure 4 that the structure shown in the figure is only a block diagram of part of the structure related to the present application scheme, and does not constitute a limitation on the computer device to which the present application scheme is applied.

[0073] The embodiment of the present application also provides a computer readable storage medium, which stores a computer program, and the computer program is executed by a processor to realize the method. It can be understood that the computer readable storage medium in the embodiment can be a volatile readable storage medium or a non-volatile readable storage medium.

[0074] To sum up, the embodiment of the present application provides a furnace environment regulation method, device, equipment, computer device and computer readable storage medium. The compressed air in the compressed air pipeline connected to the furnace is cooled. Then, the real-time negative pressure value at the acoustic temperature measuring instrument is measured, and the pressure regulating valve is regulated in real time according to the value, so as to reduce the temperature and pressure in the furnace, so that the acoustic temperature measuring instrument is in the preset negative pressure range. The problem that the acoustic temperature measuring device is damaged by high temperature can be effectively prevented. By cooling the compressed air in the compressed air pipeline and regulating the pressure regulating valve in real time, it can be ensured that the acoustic temperature measuring instrument is in a safe negative pressure range, and thus it is protected from damage. In this way, the stability and reliability of the whole system are improved, thereby prolonging the service life of the acoustic temperature measuring device and ensuring the safe operation in the process of waste incineration and biomass application.

[0075] In addition, the scheme also includes measuring the negative pressure value at the inlet of the vertical flue of the incinerator, and obtaining the combustion parameters of the furnace, such as fuel supply rate, air supply amount, combustion temperature, pressure distribution in the furnace and temperature distribution in the furnace. According to these parameters, the negative pressure change trend of the furnace is predicted, and the pressure regulating valve is controlled in advance according to the prediction result, so as to ensure that the acoustic temperature measuring instrument is in the preset negative pressure range. By implementing this technical scheme, the problem that the acoustic temperature measuring device is damaged by high temperature can be effectively prevented. According to the furnace combustion parameters, the negative pressure change trend is predicted, which also helps to ensure the safe operation in the process of waste incineration and biomass application, prolong the service life of the acoustic temperature measuring device, and improve the stability and reliability of the system.

[0076] Those skilled in the art can understand that all or part of the processes in the above-mentioned embodiment methods can be completed by instructing relevant hardware through a computer program. The computer program can be stored in a non-volatile computer readable storage medium, and when executed, can include the processes of the above-mentioned embodiment methods. Any reference to memory, storage, database or other medium provided by the present application and used in the 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. As an illustration but not limitation, RAM is available in various forms, such as static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double data rate SDRAM (SSRSDRAM), enhanced SDRAM (ESDRAM), synchronous link (Synchlink) DRAM (SLDRAM), memory bus (Rambus) direct RAM (RDRAM), direct memory bus dynamic RAM (DRDRAM), and memory bus dynamic RAM, etc.

[0077] It should be noted that in this document, the terms "comprising", "including", or any other variant thereof are intended to cover a non-exclusive inclusion, such that a process, device, article or method that comprises a list of elements does not only include those elements, but can also include other elements not expressly listed or inherent to such process, device, article or method. Without more limitations, the element defined by the statement "comprising a" does not exclude the presence of additional identical elements in the process, device, article or method that includes the element.

[0078] The above description is only the preferred embodiment of the present application, and does not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation, or direct or indirect application in other related technical fields, based on the content of the present application specification and drawings, are also included in the patent protection scope of the present application.

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. A compressed air pipeline, connected to the instrument via a pressure regulating valve, is located at the point where the instrument is inserted into the vertical flue. A pressure sensor is also installed at the point where the acoustic temperature measuring instrument is inserted into the vertical flue to measure the real-time negative pressure value at the instrument. The control 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, 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.

4. 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 vertical flue inlet 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 vertical flue inlet of the incinerator and the combustion parameters of the furnace, the trend of negative pressure change in 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.

5. The control method according to claim 4, 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.

6. The control method according to claim 4, 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; If 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.

7. 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, is connected via a pressure regulating valve. 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.

8. The furnace environment control device according to claim 7, 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.

9. 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 6.

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