Medium-frequency induction furnace flow monitoring method and system and electronic equipment

Abstract

The invention provides a flow monitoring method and system for a medium-frequency induction furnace and electronic equipment, and relates to the technical field of flow monitoring, and the method comprises the steps of obtaining a first flow value of a water supply main path and a second flow value of a water return main path in real time, and carrying out filtering correction processing on the first flow value and the second flow value. And calculating a flow difference value based on the corrected flow value, and comparing the flow difference value with a preset flow difference threshold value. And when the flow difference value exceeds the threshold value, a first early warning signal is output, and a compensation algorithm is used for compensating the water supply main path. Meanwhile, the compensation amount, the change rate and the compensated flow difference value are recorded in real time and analyzed. And if the change rate of the compensation amount exceeds a preset change threshold value or the compensation amount is greater than a compensation threshold value, outputting a second early warning signal. And if the compensated flow difference value is lower than the preset threshold value, water supply compensation is stopped. According to the method, the cooling water flow abnormity in the medium-frequency induction furnace can be accurately recognized and responded, and then the production safety of the medium-frequency induction furnace is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of flow monitoring, and in particular to a medium frequency induction furnace flow monitoring method, system and electronic equipment. Background Art

[0002] The medium frequency induction furnace is a key equipment in the metal melting process. The normal operation of its cooling water system is crucial to the safety and production efficiency of the equipment. At present, the cooling water monitoring methods of many medium frequency induction furnaces mainly rely on temperature sensors and pressure sensors. Although the traditional monitoring method can provide the basic operating parameters of the medium frequency induction furnace, it cannot reflect the flow changes of the cooling water in real time. When water leakage or abnormal flow occurs, it cannot warn the operator in time, which may cause equipment failure or safety accidents, resulting in serious economic losses and personal injuries.

[0003] The application of flow monitoring in existing technologies is still insufficient, and most systems only use fixed alarm thresholds for monitoring. This method does not take into account the dynamic flow changes during equipment operation, which is prone to false alarms and missed alarms, and cannot quickly respond to flow anomalies in emergency situations. The limitations of existing medium frequency induction furnace flow monitoring may increase potential economic losses and even cause serious safety hazards. Summary of the invention

[0004] The problem solved by the present invention is how to accurately identify and respond to abnormal cooling water flow in a medium frequency induction furnace.

[0005] In order to solve the above problems, the present invention provides a medium frequency induction furnace flow monitoring method, system and electronic equipment.

[0006] In a first aspect, the present invention provides a medium frequency induction furnace flow monitoring method, comprising:

[0007] Acquire a first flow value of a water supply main path and a second flow value of a water return main path of a medium frequency induction furnace in real time, and perform filtering and correction processing on the first flow value and the second flow value;

[0008] Obtaining a flow difference value based on the first flow value and the second flow value after filtering and correction, and comparing the flow difference value with a preset flow difference threshold value;

[0009] In response to the flow difference being greater than the preset flow difference threshold, a first warning signal is output, and based on the flow difference, a compensation algorithm is used to perform water supply compensation on the water supply main path of the medium frequency induction furnace, and the water supply compensation amount, the rate of change of the water supply compensation amount, and the compensated flow difference are recorded in real time, and the water supply compensation amount, the rate of change of the water supply compensation amount, and the compensated flow difference are analyzed;

[0010] If the change rate of the water supply compensation amount is greater than a preset change threshold or the water supply compensation amount is greater than a preset compensation threshold, outputting a second warning signal;

[0011] If the flow difference after compensation is lower than the preset threshold, the water supply compensation for the main water supply line of the medium frequency induction furnace is stopped.

[0012] Optionally, in response to the flow difference being greater than the preset flow difference threshold, outputting a first warning signal comprises:

[0013] In response to the flow difference being greater than the preset flow difference threshold, an alarm sound signal is emitted and a warning light flashes.

[0014] Optionally, the obtaining of a first flow value of a water supply main path and a second flow value of a water return main path of the medium frequency induction furnace includes:

[0015] Obtaining a first ultrasonic signal by using a first ultrasonic sensor arranged on the water supply main line, and transmitting the first ultrasonic signal to a first ultrasonic flow meter to obtain the first flow value;

[0016] A second ultrasonic sensor arranged on the water return main line is used to obtain a second ultrasonic signal, and the second ultrasonic signal is transmitted to a second ultrasonic flow meter to obtain the second flow value.

[0017] Optionally, performing filtering and correction processing on the first flow value and the second flow value includes:

[0018] Using a Kalman filter algorithm to predict the first flow value and the second flow value at the previous moment, obtaining a first flow prediction value and a second flow prediction value at the current moment, and monitoring and obtaining the first flow value and the second flow value at the current moment;

[0019] determining a first Kalman gain based on the first flow value at the current moment and the first flow prediction value, and correcting the first flow value at the current moment using the first flow prediction value and the first Kalman gain to obtain the corrected first flow value;

[0020] A second Kalman gain is determined based on the second flow value at the current moment and the second flow prediction value, and the second flow value at the current moment is corrected using the second flow prediction value and the second Kalman gain to obtain a corrected second flow value.

[0021] Optionally, based on the flow difference, using a compensation algorithm to perform water supply compensation on the main water supply path of the medium frequency induction furnace includes:

[0022] Acquire water supply compensation data of the water supply main line, wherein the water supply compensation data includes a measured water supply temperature value, a measured water supply pressure value, a preset water supply temperature value, and a preset water supply pressure value;

[0023] Based on the flow difference and the water supply compensation data, a nonlinear compensation algorithm is used to calculate the water supply compensation amount of the main water supply path of the medium frequency induction furnace, and water supply compensation is performed on the main water supply path according to the water supply compensation amount.

[0024] Optionally, the calculation formula of the nonlinear compensation algorithm is:

[0025] Q 补偿 =a 1 ×ΔQ+a 2 ×(T 测 -T 设 )+a 3 ×(P 测 -P 设 )+b;

[0026] Among them, Q 补偿 represents the water supply compensation amount, ΔQ represents the flow difference, T 测 Represents the measured water supply temperature value, T 设 represents the preset water supply temperature value, P 测 Represents the measured water supply pressure value, P 设 Indicates the preset water supply pressure value, a 1 represents the compensation coefficient of the flow difference, a 2 represents the temperature compensation coefficient, a 3 represents the pressure compensation coefficient, and b represents the constant compensation term.

[0027] Optionally, if the change rate of the water supply compensation amount is greater than a preset change threshold or the water supply compensation amount is greater than a preset compensation threshold, outputting a second warning signal includes:

[0028] If the change rate of the water supply compensation amount is greater than a preset change threshold or the water supply compensation amount is greater than a preset compensation threshold, a high-frequency alarm sound signal is emitted and a warning light flashes continuously.

[0029] In a second aspect, the present invention provides a medium frequency induction furnace flow monitoring system, which is used to execute any one of the above medium frequency induction furnace flow monitoring methods, comprising:

[0030] A flow acquisition module, which acquires in real time a first flow value of a water supply main path and a second flow value of a water return main path of the medium frequency induction furnace, and performs filtering and correction processing on the first flow value and the second flow value;

[0031] A comparison module, which obtains a flow difference value based on the first flow value and the second flow value after filtering and correction, and compares the flow difference value with a preset flow difference threshold value;

[0032] A flow compensation module, for outputting a first warning signal in response to the flow difference being greater than the preset threshold, and based on the flow difference, using a compensation algorithm to perform water supply compensation on the main water supply path of the medium frequency induction furnace, recording in real time the water supply compensation amount, the rate of change of the water supply compensation amount, and the compensated flow difference, and analyzing the water supply compensation amount, the rate of change of the water supply compensation amount, and the compensated flow difference;

[0033] An early warning module, configured to output a second early warning signal if the rate of change of the water supply compensation amount is greater than a preset change threshold or the water supply compensation amount is greater than a preset compensation threshold;

[0034] The stop module is used to stop the water supply compensation for the main water supply line of the medium frequency induction furnace if the flow difference after compensation is lower than the preset threshold value.

[0035] In a third aspect, the present invention provides an electronic device, including a memory and a processor;

[0036] The memory is used to store computer programs;

[0037] The processor is used to implement any of the above-mentioned medium frequency induction furnace flow monitoring methods when executing the computer program.

[0038] In a fourth aspect, the present invention provides a computer-readable storage medium having a computer program stored thereon. When the computer program is executed by a processor, a medium frequency induction furnace flow monitoring method as described above is implemented.

[0039] Compared with the prior art, the beneficial effects of the present invention are as follows: by filtering and correcting the first flow value of the water supply main circuit and the second flow value of the return water main circuit, noise and interference can be effectively eliminated to ensure the accuracy of flow monitoring; then, the flow value difference after filtering and correction is calculated, and the flow value difference is compared with the preset flow difference threshold, and a first warning signal for alerting the staff is output, so that the staff can quickly find the flow abnormality and take corresponding measures; then, the compensation algorithm is used to compensate the flow of the water supply main circuit, and the water supply compensation amount, the rate of change of the water supply compensation amount and the real-time flow difference after compensation are recorded and analyzed in real time. If the water supply If the rate of change of the compensation amount is greater than the preset change threshold, it means that the medium frequency induction rate has a large flow change in a short period of time, there is a risk of water leakage, and the water leakage problem is gradually getting worse. If the water supply compensation amount is greater than the preset compensation threshold, it means that the water leakage problem is more serious and may have caused greater safety damage. Then, by outputting a second warning signal with a higher warning level, it warns the staff that they must take countermeasures to avoid the water leakage problem from causing serious impact on production safety; when the flow difference after compensation is lower than the preset threshold, it means that the water leakage hidden danger and related hidden dangers are eliminated (it may be that the flow abnormality caused by waterway blockage, abnormal water pressure and abnormal water temperature is solved), and water supply compensation can be stopped at this time. The present invention can accurately identify and respond to the abnormal cooling water flow in the medium frequency induction furnace, thereby improving the production safety of the medium frequency induction furnace. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] Figure 1 A flow chart of a method for monitoring flow of a medium frequency induction furnace provided by an embodiment of the present invention;

[0041] Figure 2 A flow chart of step S11 of a medium frequency induction furnace flow monitoring method provided by one embodiment of the present invention;

[0042] Figure 3 A schematic structural diagram of a medium frequency induction furnace flow monitoring system provided by an embodiment of the present invention;

[0043] Figure 4 A schematic diagram of the structure of an electronic device provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0044] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. Although certain embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be interpreted as being limited to the embodiments described herein. On the contrary, these embodiments are provided to provide a more thorough and complete understanding of the present invention. It should be understood that the drawings and embodiments of the present invention are only for exemplary purposes and are not intended to limit the scope of protection of the present invention.

[0045] It should be understood that the various steps described in the method embodiments of the present invention may be performed in different orders and / or in parallel. In addition, the method embodiments may include additional steps and / or omit the steps shown. The scope of the present invention is not limited in this respect.

[0046] The term "including" and its variations used in this document are open inclusions, that is, "including but not limited to"; the term "based on" means "based at least in part on"; the term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one other embodiment"; the term "some embodiments" means "at least some embodiments"; the term "optionally" means "optional embodiments". The relevant definitions of other terms will be given in the following description. It should be noted that the concepts of "first", "second", etc. mentioned in the present invention are only used to distinguish different devices, modules or units, and are not used to limit the order or interdependence of the functions performed by these devices, modules or units.

[0047] It should be noted that the modifications of "one" and "plurality" mentioned in the present invention are illustrative rather than restrictive, and those skilled in the art should understand that, unless otherwise clearly indicated in the context, it should be understood as "one or more".

[0048] The names of the messages or information exchanged between multiple devices in the embodiments of the present invention are only used for illustrative purposes, and are not used to limit the scope of these messages or information.

[0049] Medium frequency induction furnace is an industrial equipment widely used in metal melting and heat treatment. Its working principle is to use the principle of electromagnetic induction to generate high temperature and melt the metal by applying medium frequency alternating current to the metal material in the furnace. Medium frequency induction furnace has the characteristics of high efficiency, energy saving, easy operation and environmental protection.

[0050] During the operation of the medium frequency induction furnace, a lot of heat will be generated, so an effective cooling system is required to keep the temperature of the equipment within a safe range. The main function of the cooling water system is to remove excess heat from the medium frequency induction furnace body and key parts through circulating cooling water to prevent overheating and damage to the equipment, to ensure the normal operation of the medium frequency induction furnace, and to extend the service life of the medium frequency induction furnace.

[0051] The main water supply line refers to the pipeline that starts from the cooling water source (such as a cooling water tank or cooling water pool) and sends cooling water to the medium frequency induction furnace and its ancillary equipment. The main return water line refers to the pipeline that flows back from the medium frequency induction furnace and its ancillary equipment to the cooling water source, and is responsible for returning the heated cooling water to the cooling water tank or cooling water pool.

[0052] Reference Figure 1The present invention provides a medium frequency induction furnace flow monitoring method, comprising:

[0053] S11. Acquire in real time a first flow value of a water supply main path and a second flow value of a water return main path of a medium frequency induction furnace, and perform filtering and correction processing on the first flow value and the second flow value, wherein the first flow value and the second flow value are collected at the same time.

[0054] Specifically, an electromagnetic flowmeter or an ultrasonic flowmeter can be used to obtain a first flow value of the water supply main path and a second flow value of the water return main path. The first flow value refers to the flow value of cooling water flowing out of the cold water tank or cooling water pool and transported to the cooling pipe of the medium frequency induction furnace through the water supply main path; the second flow value refers to the flow value of cooling water flowing out of the cooling pipe of the medium frequency induction furnace and transported to the cooling water tank or cooling water pool through the water return main path.

[0055] Different acquisition times of the first flow value and the second flow value may affect the judgment of the difference, so a unified acquisition time can reduce the interference of system fluctuations on the flow difference. Moreover, in subsequent data processing and analysis, ensuring that the first flow value and the second flow value are acquired at the same time can avoid abnormal judgment errors caused by time delay.

[0056] Since water flow monitoring data is often affected by environmental vibrations, temperature changes and equipment operating conditions, the output of the flow sensor may be unstable, and instantaneous fluctuations may not reflect the actual changes in flow. Therefore, filtering and correction processing helps to obtain more accurate first flow values ​​and second flow values.

[0057] S12: Obtain a flow difference based on the first flow value and the second flow value after filtering and correction, and compare the flow difference with a preset flow difference threshold.

[0058] It needs to be explained that the first flow value and the second flow value after filtering and correction are subtracted to obtain the difference between the first flow value and the second flow value. By comparing the flow difference with the preset flow difference, it is determined whether the flow is abnormal and whether there is a risk of leakage and blockage.

[0059] S13. In response to the flow difference being greater than the preset flow difference threshold, a first warning signal is output, and based on the flow difference, a compensation algorithm is used to perform water supply compensation on the main water supply line of the medium frequency induction furnace, and the water supply compensation amount, the rate of change of the water supply compensation amount, and the compensated flow difference are recorded in real time, and the water supply compensation amount, the rate of change of the water supply compensation amount, and the compensated flow difference are analyzed.

[0060] When the flow difference is greater than the preset flow difference threshold, it proves that the cooling water system has a flow abnormality. At this time, the first warning signal is output to indicate the flow abnormality, reminding the staff of the flow abnormality. Then, based on the flow difference, the compensation algorithm is used to determine the water supply compensation amount of the main water supply line of the medium frequency induction furnace, and the valve of the main water supply line is adjusted to execute the water supply compensation amount to compensate the cooling water flow of the main water supply line to achieve flow balance; at the same time, the water supply compensation amount, the rate of change of the water supply compensation amount, and the compensated flow difference are recorded and analyzed to provide a data basis for determining the status of the cooling water of the medium frequency induction furnace.

[0061] The water supply compensation refers to the additional water supply that needs to be adjusted to balance the flow difference between the main water supply and return water lines, which is obtained by using the compensation algorithm based on the calculation results of the flow difference. The water supply compensation is intended to ensure that there is enough cooling water circulation in the cooling water system to meet the cooling needs of the medium frequency cooling furnace.

[0062] The rate of change of the water supply compensation refers to the rate of increase or decrease of the water supply compensation per unit time. When the water supply compensation is a positive value, it means that the water supply compensation is increasing, and when the water supply compensation is a negative value, it means that the water supply compensation is decreasing. If the rate of change of the water supply compensation increases rapidly (that is, the water supply compensation increases rapidly), it means that the cooling water system is abnormally increasing, and more cooling water compensation is needed to maintain the temperature balance of the medium frequency induction furnace. It also means that the flow abnormality is aggravating and needs to be resolved urgently; on the contrary, the rate of change of the water supply compensation tends to zero or is negative (that is, the water supply compensation decreases), especially when the flow difference decreases, it indicates that the flow abnormality has been alleviated and the cooling water system has gradually returned to normal; in addition, if the water supply compensation continues to be negative, but the flow difference is still large, it means that there are major hidden dangers in the cooling water system, and the staff needs to take further measures to solve the problems caused by uneven flow.

[0063] S14. If the change rate of the water supply compensation amount is greater than a preset change threshold or the water supply compensation amount is greater than a preset compensation threshold, a second warning signal is output.

[0064] When the rate of change of the water supply compensation amount is greater than the preset change threshold, it means that the fault of the cooling water system is getting worse, or the water leakage is getting more serious. At this time, the second warning signal is output to remind the staff to deal with it. In addition, when the water supply compensation amount is greater than the preset threshold, it also means that the flow abnormality problem is serious, and the water leakage may be more serious. It is also necessary to output the second warning signal to remind the staff to deal with it.

[0065] S15. If the flow difference after compensation is lower than the preset threshold, stop the water supply compensation for the main water supply line of the medium frequency induction furnace.

[0066] When the difference in flow rate after compensation is lower than the preset threshold, the cooling water system can be regarded as returning to normal, and water supply compensation for the medium frequency induction furnace can be stopped.

[0067] Compared with the prior art, the beneficial effects of the present invention are as follows: by filtering and correcting the first flow value of the water supply main circuit and the second flow value of the return water main circuit, noise and interference can be effectively eliminated to ensure the accuracy of flow monitoring; then, the flow value difference after filtering and correction is calculated, and the flow value difference is compared with the preset flow difference threshold, and a first warning signal for alerting the staff is output, so that the staff can quickly find the flow abnormality and take corresponding measures; then, the compensation algorithm is used to compensate the flow of the water supply main circuit, and the water supply compensation amount, the rate of change of the water supply compensation amount and the real-time flow difference after compensation are recorded and analyzed in real time. If the water supply If the rate of change of the compensation amount is greater than the preset change threshold, it means that the medium frequency induction rate has a large flow change in a short period of time, there is a risk of water leakage, and the water leakage problem is gradually getting worse. If the water supply compensation amount is greater than the preset compensation threshold, it means that the water leakage problem is more serious and may have caused greater safety damage. Then, by outputting a second warning signal with a higher warning level, it warns the staff that they must take countermeasures to avoid the water leakage problem from causing serious impact on production safety; when the flow difference after compensation is lower than the preset threshold, it means that the water leakage hidden danger and related hidden dangers are eliminated (it may be that the flow abnormality caused by waterway blockage, abnormal water pressure and abnormal water temperature is solved), and water supply compensation can be stopped at this time. The present invention can accurately identify and respond to the abnormal cooling water flow in the medium frequency induction furnace, thereby improving the production safety of the medium frequency induction furnace.

[0068] In one embodiment, in response to the flow difference being greater than the preset flow difference threshold, outputting a first warning signal comprises:

[0069] In response to the flow difference being greater than the preset flow difference threshold, an alarm sound signal is emitted and a warning light flashes.

[0070] When the flow difference is greater than the preset flow difference threshold, the alarm condition is triggered, the alarm sound device is started and the flashing warning light is activated until the operator cancels the alarm. This embodiment can ensure that when the flow difference exceeds the set threshold, the operator is warned by sound and light alarm signals to conduct timely inspection and processing, so as to ensure the safe and stable operation of the medium frequency induction furnace.

[0071] Further, the obtaining of the first flow value of the water supply main path and the second flow value of the water return main path of the medium frequency induction furnace includes:

[0072] Obtaining a first ultrasonic signal by using a first ultrasonic sensor arranged on the water supply main line, and transmitting the first ultrasonic signal to a first ultrasonic flow meter to obtain the first flow value;

[0073] A second ultrasonic sensor arranged on the water return main line is used to obtain a second ultrasonic signal, and the second ultrasonic signal is transmitted to a second ultrasonic flow meter to obtain the second flow value.

[0074] This embodiment obtains the first flow value and the second flow value by means of ultrasonic sensors arranged on the water supply main line and the water return main line, thereby ensuring accurate collection of flow data and providing a reliable data basis for subsequent water supply compensation and monitoring.

[0075] Reference Figure 2 , and performing filtering and correction processing on the first flow value and the second flow value, including:

[0076] S111. Use the Kalman filter algorithm to predict the first flow value and the second flow value at the previous moment to obtain the first flow prediction value and the second flow prediction value at the current moment, and monitor and obtain the first flow value and the second flow value at the current moment.

[0077] Specifically, before filtering and correcting the first flow value and the second flow value, the initial parameters of the Kalman filter (i.e., the process noise covariance matrix and the observation noise covariance matrix) are first set. The initial parameters can be obtained through experimental data, and the prediction error covariance is initialized at the same time.

[0078] Then, at the beginning of each data collection cycle, the first flow value at the previous moment is used to predict the first flow value at the current moment to obtain the first flow prediction value at the current moment; the second flow value at the previous moment is used to predict the second flow value at the current moment to obtain the second flow prediction value at the current moment.

[0079] S112, determining a first Kalman gain based on the first flow value at the current moment and the first flow prediction value, and correcting the first flow value at the current moment using the first flow prediction value and the first Kalman gain to obtain the corrected first flow value,

[0080] S113. Determine a second Kalman gain based on the second flow value at the current moment and the second flow prediction value, and correct the second flow value at the current moment using the second flow prediction value and the second Kalman gain to obtain a corrected second flow value.

[0081] This embodiment uses the Kalman filter algorithm to effectively predict and correct the flow value, thereby greatly improving the flow measurement accuracy and stability of the water supply system of the medium frequency induction furnace.

[0082] Furthermore, based on the flow difference, using a compensation algorithm to perform water supply compensation on the main water supply path of the medium frequency induction furnace includes:

[0083] Acquire water supply compensation data of the water supply main line, wherein the water supply compensation data includes a measured water supply temperature value, a measured water supply pressure value, a preset water supply temperature value, and a preset water supply pressure value;

[0084] Based on the flow difference and the water supply compensation data, a nonlinear compensation algorithm is used to calculate the water supply compensation amount of the main water supply path of the medium frequency induction furnace, and water supply compensation is performed on the main water supply path according to the water supply compensation amount.

[0085] Specifically, the measured water supply temperature value can be obtained by a temperature sensor installed on the main water supply line, the water supply pressure value can be obtained by a pressure sensor installed on the main water supply line, the preset water supply temperature value can be set according to the ideal water supply temperature value set according to the specifications and production process requirements, and the preset water supply pressure value can be set according to the ideal water supply pressure value set according to the specifications and production process requirements.

[0086] According to the relationship between the flow difference and its influence on the water supply temperature and water supply pressure, a nonlinear compensation model is established, and the specific parameters of the nonlinear compensation model can be debugged and defined according to the needs of the equipment.

[0087] This embodiment uses a nonlinear compensation algorithm to compensate for the main water supply line of the medium frequency induction furnace, which can not only dynamically adjust the water supply according to real-time monitoring data to improve the working efficiency of the equipment, but also effectively ensure the stable operation of the water supply system.

[0088] Furthermore, the calculation formula of the nonlinear compensation algorithm is:

[0089] Q 补偿 =a 1 ×ΔQ+a 2 ×(T 测 -T 设 )+a 3 ×(P 测 -P 设 )+b;

[0090] Among them, Q 补偿 represents the water supply compensation amount, ΔQ represents the flow difference, T 测 Represents the measured water supply temperature value, T 设 represents the preset water supply temperature value, P 测 Represents the measured water supply pressure value, P 设 Indicates the preset water supply pressure value, a 1 represents the compensation coefficient of the flow difference, a 2 represents the temperature compensation coefficient, a 3represents the pressure compensation coefficient, and b represents the constant compensation term. The above compensation coefficient can be set based on historical data, equipment operating characteristics and experience, or adjusted through experiments during operation. During the operation of the cooling water system, the compensation coefficient can also be adjusted and optimized if necessary to achieve the best compensation effect.

[0091] This embodiment adopts a nonlinear compensation algorithm to perform water supply compensation for the main water supply line of the medium frequency induction furnace, which can effectively adjust the water supply of the main water supply line in real time according to the changes in flow difference, temperature and pressure, thereby ensuring stable and safe operation of the equipment.

[0092] In one embodiment, if the change rate of the water supply compensation amount is greater than a preset change threshold or the water supply compensation amount is greater than a preset compensation threshold, outputting a second warning signal includes:

[0093] If the change rate of the water supply compensation amount is greater than a preset change threshold or the water supply compensation amount is greater than a preset compensation threshold, a high-frequency alarm sound signal is emitted and a warning light flashes continuously.

[0094] Among them, the change rate of the water supply compensation amount is greater than the preset change threshold, and the water supply compensation amount is greater than the preset compensation threshold. The judgment of these two conditions is independent of each other, but as long as one of them is met, the second warning signal will be output. Compared with the first warning signal, the warning intensity of the second warning signal is higher. When the first warning signal is triggered, the staff can take some recommended measures, such as manual inspection or temporary setting adjustment. When the second warning signal is triggered, the staff must respond and handle it immediately to determine the original abnormality as soon as possible to avoid further expansion of the abnormality and cause production accidents.

[0095] This embodiment uses a graded warning method to enable staff to quickly determine the current risk level and decide on corresponding measures, thereby improving the response capability of the medium frequency induction furnace flow abnormality and ensuring that staff can respond to potential risks in a timely and appropriate manner.

[0096] Reference Figure 3 The present invention provides a medium frequency induction furnace flow monitoring system 30, which is used to execute any one of the above medium frequency induction furnace flow monitoring methods, including:

[0097] The flow acquisition module 31 acquires in real time a first flow value of a water supply main path and a second flow value of a water return main path of the medium frequency induction furnace, and performs filtering and correction processing on the first flow value and the second flow value;

[0098] A comparison module 32, which obtains a flow difference value based on the first flow value and the second flow value after filtering and correction, and compares the flow difference value with a preset flow difference threshold value;

[0099] The flow compensation module 33 is used to output a first warning signal in response to the flow difference being greater than the preset threshold value, and based on the flow difference, use a compensation algorithm to perform water supply compensation on the water supply main path of the medium frequency induction furnace, record the water supply compensation amount, the rate of change of the water supply compensation amount, and the compensated flow difference in real time, and analyze the water supply compensation amount, the rate of change of the water supply compensation amount, and the compensated flow difference;

[0100] The early warning module 34 is configured to output a second early warning signal if the change rate of the water supply compensation amount is greater than a preset change threshold or the water supply compensation amount is greater than a preset compensation threshold;

[0101] The stop module 35 is used to stop the water supply compensation for the main water supply line of the medium frequency induction furnace if the flow difference after compensation is lower than the preset threshold value.

[0102] Compared with the prior art, the beneficial effects of the present invention are as follows: the flow acquisition module 31 can effectively eliminate noise and interference by filtering and correcting the first flow value of the water supply main road and the second flow value of the return water main road, thereby ensuring the accuracy of flow monitoring; then, the comparison module 32 calculates the flow value difference after filtering and correction, compares the flow value difference with the preset flow difference threshold, and outputs a first warning signal for alerting the staff, so that the staff can quickly discover the flow abnormality and take corresponding measures; then, the flow compensation module 33 uses the compensation algorithm to compensate the flow of the water supply main road, and records and analyzes the water supply compensation amount, the rate of change of the water supply compensation amount and the real-time flow after compensation in real time. If the rate of change of the water supply compensation amount is greater than the preset change threshold, it means that the medium frequency induction rate has a large flow change in a short time, there is a risk of water leakage, and the water leakage problem is gradually getting worse. If the water supply compensation amount is greater than the preset compensation threshold, it means that the water leakage problem is more serious, and a large safety damage may have occurred. The early warning module 34 outputs a second early warning signal with a higher warning level to warn the staff that they must take countermeasures to avoid the water leakage problem from causing serious impact on production safety; when the flow difference after compensation is lower than the preset threshold, it means that the water leakage hidden danger and related hidden dangers are eliminated (it may be that the flow abnormality caused by waterway blockage, abnormal water pressure and abnormal water temperature is solved), and the stop module 35 controls the stop of water supply compensation. The present invention can accurately identify and respond to the abnormal cooling water flow in the medium frequency induction furnace, thereby improving the production safety of the medium frequency induction furnace.

[0103] Reference Figure 4 , the present invention provides an electronic device 40, including a memory 41 and a processor 42;

[0104] The memory 41 is used to store computer programs;

[0105] The processor 42 is used to implement the above-mentioned medium frequency induction furnace flow monitoring method when executing the computer program.

[0106] In other words, an electronic device 40 includes a memory 41 and a processor 42 coupled to the memory 41; the memory 41 is configured to store a computer program; and the processor 42 is configured to perform the following operations when executing the computer program:

[0107] Acquire a first flow value of a water supply main path and a second flow value of a water return main path of a medium frequency induction furnace in real time, and perform filtering and correction processing on the first flow value and the second flow value;

[0108] Obtaining a flow difference value based on the first flow value and the second flow value after filtering and correction, and comparing the flow difference value with a preset flow difference threshold value;

[0109] In response to the flow difference being greater than the preset flow difference threshold, a first warning signal is output, and based on the flow difference, a compensation algorithm is used to perform water supply compensation on the water supply main path of the medium frequency induction furnace, and the water supply compensation amount, the rate of change of the water supply compensation amount, and the compensated flow difference are recorded in real time, and the water supply compensation amount, the rate of change of the water supply compensation amount, and the compensated flow difference are analyzed;

[0110] If the change rate of the water supply compensation amount is greater than a preset change threshold or the water supply compensation amount is greater than a preset compensation threshold, outputting a second warning signal;

[0111] If the flow difference after compensation is lower than the preset threshold, the water supply compensation for the main water supply line of the medium frequency induction furnace is stopped.

[0112] The present invention provides a computer-readable storage medium, on which a computer program is stored. When the computer program is executed by a processor, the above-mentioned medium frequency induction furnace flow monitoring method is implemented.

[0113] In other words, a non-volatile computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the processor performs the following operations:

[0114] Acquire a first flow value of a water supply main path and a second flow value of a water return main path of a medium frequency induction furnace in real time, and perform filtering and correction processing on the first flow value and the second flow value;

[0115] Obtaining a flow difference value based on the first flow value and the second flow value after filtering and correction, and comparing the flow difference value with a preset flow difference threshold value;

[0116] In response to the flow difference being greater than the preset flow difference threshold, a first warning signal is output, and based on the flow difference, a compensation algorithm is used to perform water supply compensation on the water supply main path of the medium frequency induction furnace, and the water supply compensation amount, the rate of change of the water supply compensation amount, and the compensated flow difference are recorded in real time, and the water supply compensation amount, the rate of change of the water supply compensation amount, and the compensated flow difference are analyzed;

[0117] If the change rate of the water supply compensation amount is greater than a preset change threshold or the water supply compensation amount is greater than a preset compensation threshold, outputting a second warning signal;

[0118] If the flow difference after compensation is lower than the preset threshold, the water supply compensation for the main water supply line of the medium frequency induction furnace is stopped.

[0119] An electronic device 40 that can be used as a server or client of the present invention will now be described, which is an example of a hardware device that can be applied to various aspects of the present invention. The electronic device 40 is intended to represent various forms of digital electronic computer devices, such as laptop computers, desktop computers, workbenches, personal digital assistants, servers, blade servers, mainframe computers, and other suitable computers. The electronic device 40 can also represent various forms of mobile devices, such as personal digital processing, cellular phones, smart phones, wearable devices, and other similar computing devices. The components shown herein, their connections and relationships, and their functions are merely examples and are not intended to limit the implementation of the present invention described and / or required herein.

[0120] The electronic device 40 includes a computing unit, which can perform various appropriate actions and processes according to a computer program stored in a read-only memory (ROM) or a computer program loaded from a storage unit into a random access memory (RAM). In the RAM, various programs and data required for the operation of the device can also be stored. The computing unit, ROM, and RAM are connected to each other via a bus. An input / output (I / O) interface is also connected to the bus.

[0121] A person of ordinary skill in the art can understand that all or part of the processes in the above-mentioned embodiment method can be completed by instructing the relevant hardware through a computer program, and the program can be stored in a computer-readable storage medium. When the program is executed, it can include the processes of the embodiments of the above-mentioned methods. Among them, the storage medium can be a disk, an optical disk, a read-only memory (ROM) or a random access memory (RAM), etc. In the present application, the unit described as a separate component may or may not be physically separated, and the component displayed as a unit may or may not be a physical unit, that is, it may be located in one place, or it may be distributed on multiple network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the embodiment of the present invention. In addition, each functional unit in each embodiment of the present invention can be integrated in a processing unit, or each unit can exist physically separately, or two or more units can be integrated in one unit. The above-mentioned integrated unit can be implemented in the form of hardware or in the form of a software functional unit.

[0122] Although the present invention is disclosed as above, the protection scope of the present invention is not limited thereto. Those skilled in the art may make various changes and modifications without departing from the spirit and scope of the present invention, and these changes and modifications will fall within the protection scope of the present invention.

Claims

1. A medium frequency induction furnace flow monitoring method, characterized in that: include: Acquire a first flow value of a water supply main path and a second flow value of a water return main path of a medium frequency induction furnace in real time, and perform filtering and correction processing on the first flow value and the second flow value; Obtaining a flow difference value based on the first flow value and the second flow value after filtering and correction, and comparing the flow difference value with a preset flow difference threshold value; In response to the flow difference being greater than the preset flow difference threshold, a first warning signal is output, and based on the flow difference, a compensation algorithm is used to perform water supply compensation on the water supply main path of the medium frequency induction furnace, and the water supply compensation amount, the rate of change of the water supply compensation amount, and the compensated flow difference are recorded in real time, and the water supply compensation amount, the rate of change of the water supply compensation amount, and the compensated flow difference are analyzed; If the change rate of the water supply compensation amount is greater than a preset change threshold or the water supply compensation amount is greater than a preset compensation threshold, outputting a second warning signal; If the flow difference after compensation is lower than the preset threshold, the water supply compensation for the main water supply line of the medium frequency induction furnace is stopped.

2. The medium frequency induction furnace flow monitoring method according to claim 1 is characterized in that: In response to the flow difference being greater than the preset flow difference threshold, outputting a first warning signal comprises: In response to the flow difference being greater than the preset flow difference threshold, an alarm sound signal is emitted and a warning light flashes.

3. The medium frequency induction furnace flow monitoring method according to claim 1 is characterized in that: The obtaining of a first flow value of a water supply main path and a second flow value of a water return main path of the medium frequency induction furnace includes: Obtaining a first ultrasonic signal by using a first ultrasonic sensor arranged on the water supply main line, and transmitting the first ultrasonic signal to a first ultrasonic flow meter to obtain the first flow value; A second ultrasonic sensor arranged on the water return main line is used to obtain a second ultrasonic signal, and the second ultrasonic signal is transmitted to a second ultrasonic flow meter to obtain the second flow value.

4. The medium frequency induction furnace flow monitoring method according to claim 1 is characterized in that: The filtering and correcting process is performed on the first flow value and the second flow value, including: Using a Kalman filter algorithm to predict the first flow value and the second flow value at the previous moment, obtaining a first flow prediction value and a second flow prediction value at the current moment, and monitoring and obtaining the first flow value and the second flow value at the current moment; determining a first Kalman gain based on the first flow value at the current moment and the first flow prediction value, and correcting the first flow value at the current moment using the first flow prediction value and the first Kalman gain to obtain the corrected first flow value; A second Kalman gain is determined based on the second flow value at the current moment and the second flow prediction value, and the second flow value at the current moment is corrected using the second flow prediction value and the second Kalman gain to obtain a corrected second flow value.

5. The method for monitoring flow rate of a medium frequency induction furnace according to claim 1, characterized in that: The method of performing water supply compensation on the main water supply path of the medium frequency induction furnace by using a compensation algorithm based on the flow difference includes: Acquire water supply compensation data of the water supply main line, wherein the water supply compensation data includes a measured water supply temperature value, a measured water supply pressure value, a preset water supply temperature value, and a preset water supply pressure value; Based on the flow difference and the water supply compensation data, a nonlinear compensation algorithm is used to calculate the water supply compensation amount of the main water supply path of the medium frequency induction furnace, and water supply compensation is performed on the main water supply path according to the water supply compensation amount.

6. The medium frequency induction furnace flow monitoring method according to claim 5, characterized in that: The calculation formula of the nonlinear compensation algorithm is: Q 补偿 =a1×ΔQ+a2×(T 测 -T 设 )+a3×(P 测 -P 设 )+b; Among them, Q 补偿 represents the water supply compensation amount, ΔQ represents the flow difference, T 测 Represents the measured water supply temperature value, T 设 represents the preset water supply temperature value, P 测 Represents the measured water supply pressure value, P 设 represents the preset water supply pressure value, a1 represents the compensation coefficient of the flow difference, a2 represents the temperature compensation coefficient, a3 represents the pressure compensation coefficient, and b represents the constant compensation term.

7. The medium frequency induction furnace flow monitoring method according to claim 1, characterized in that: If the change rate of the water supply compensation amount is greater than a preset change threshold or the water supply compensation amount is greater than a preset compensation threshold, outputting a second warning signal includes: If the change rate of the water supply compensation amount is greater than a preset change threshold or the water supply compensation amount is greater than a preset compensation threshold, a high-frequency alarm sound signal is emitted and a warning light flashes continuously.

8. A medium frequency induction furnace flow monitoring system, used to execute the medium frequency induction furnace flow monitoring method according to any one of claims 1 to 7, characterized in that: include: A flow acquisition module, which acquires in real time a first flow value of a water supply main path and a second flow value of a water return main path of the medium frequency induction furnace, and performs filtering and correction processing on the first flow value and the second flow value, wherein the first flow value and the second flow value are collected at the same time; A comparison module, which obtains a flow difference value based on the first flow value and the second flow value after filtering and correction, and compares the flow difference value with a preset flow difference threshold value; A flow compensation module, for outputting a first warning signal in response to the flow difference being greater than the preset threshold, and based on the flow difference, using a compensation algorithm to perform water supply compensation on the main water supply path of the medium frequency induction furnace, recording in real time the water supply compensation amount, the rate of change of the water supply compensation amount, and the compensated flow difference, and analyzing the water supply compensation amount, the rate of change of the water supply compensation amount, and the compensated flow difference; An early warning module, configured to output a second early warning signal if the rate of change of the water supply compensation amount is greater than a preset change threshold or the water supply compensation amount is greater than a preset compensation threshold; The stop module is used to stop the water supply compensation for the main water supply line of the medium frequency induction furnace if the flow difference after compensation is lower than the preset threshold value.

9. An electronic device, characterized in that: including memory and processor; The memory is used to store computer programs; The processor is used to implement the medium frequency induction furnace flow monitoring method as described in any one of claims 1 to 7 when executing the computer program.

10. A computer-readable storage medium, characterized in that: The storage medium stores a computer program, and when the computer program is executed by the processor, the medium frequency induction furnace flow monitoring method as claimed in any one of claims 1 to 7 is implemented.

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