Risk assessment method, device and equipment for thermotechnical automatic regulating system and medium

Abstract

The embodiment of the invention provides a risk assessment method, device and equipment for a thermotechnical automatic regulation system and a medium, and belongs to the technical field of desulfurization devices of thermal power plants. The method comprises the following steps: through real-time monitoring, obtaining the operation state of the thermotechnical automatic regulation system and operation parameters within a preset time length; and calculating the proportion of the system number in the automatic operation mode to obtain the overall automatic input rate. And analyzing parameters, respectively calculating the commissioning rate, the removal rate, the dynamic adjustment rate and the static deviation qualification rate, and carrying out weighted average to obtain the overall performance index of the system. And finally, comprehensively evaluating the risk level of the system according to the indexes. Through comprehensive risk assessment and real-time monitoring, the safety and reliability of the thermotechnical automatic regulating system are remarkably improved, and potential risks can be effectively prevented.

Description

Technical Field

[0001] The present invention relates to the technical field of desulfurization devices in thermal power plants, and in particular to a thermal automatic regulation system risk assessment method, a thermal automatic regulation system risk assessment device, an electronic device and a computer-readable storage medium. Background Art

[0002] With the continuous improvement of industrial automation, thermal automatic regulation systems play an increasingly important role in industrial production. These systems are responsible for controlling various thermal parameters in industrial processes, such as temperature, pressure, flow, etc., to ensure the stability of the production process and product quality. However, thermal automatic regulation systems face many risks in actual operation, such as system failure, regulation failure, parameter deviation, etc. These problems may lead to production interruptions, product quality degradation, and even safety accidents. Therefore, risk assessment and management of thermal automatic regulation systems to reduce risks and improve system reliability has become an urgent problem to be solved.

[0003] At present, the risk assessment method of thermal automatic regulation system mainly relies on manual experience and qualitative analysis. For example, the operator will conduct risk assessment based on the system operation status and historical fault records, and take corresponding preventive measures.

[0004] However, the existing risk assessment methods for thermal automatic regulation systems have the following problems: (1) Since manual assessment is easily affected by the operator's experience, knowledge and judgment ability, and the indicators are single and narrow, the assessment results cannot fully reflect the actual risk status of the system, and it is difficult to ensure the accuracy and reliability of the assessment; (2) The risk assessment results are inaccurate: Due to the lack of analysis of the system's dynamic changes and mutual influences, the existing risk assessment results may not accurately reflect the actual risk level of the system; (3) It is impossible to monitor the operating status of the thermal automatic regulation system in real time.

[0005] In general, the existing risk assessment methods for thermal automatic regulation systems have problems such as incomplete and inaccurate assessment results and inability to achieve real-time monitoring due to the limitations of manual assessment and lack of dynamic analysis. Summary of the invention

[0006] The purpose of the embodiments of the present invention is to provide a method, device, equipment and medium for risk assessment of a thermal automatic regulation system to solve the above problems.

[0007] In order to achieve the above object, an embodiment of the present invention provides a risk assessment method for a thermal automatic regulation system, comprising:

[0008] Obtaining the current operation modes of multiple thermal automatic regulation systems and the operation parameters of multiple thermal automatic regulation systems within a preset time period;

[0009] Calculate the ratio of the number of thermal automatic regulation systems whose current operation mode is the automatic operation mode to the total number of multiple thermal automatic regulation systems to determine the overall automatic input rate of the thermal automatic regulation system;

[0010] Based on the operating parameters of each thermal automatic regulation system within a preset time, the operation rate, removal rate, dynamic regulation qualified rate and static deviation qualified rate of each thermal automatic regulation system are obtained;

[0011] The operation rate, removal rate, dynamic regulation qualified rate and static deviation qualified rate of multiple thermal automatic regulation systems are weighted averaged to obtain the overall operation rate, overall removal rate, overall dynamic regulation qualified rate and overall static deviation qualified rate of the thermal automatic regulation system;

[0012] The risk level of the thermal automatic regulation system is determined based on the overall automatic input rate, overall operation rate, overall removal rate, overall dynamic regulation qualified rate and overall static deviation qualified rate of the thermal automatic regulation system.

[0013] Optionally, the operating parameters include: cumulative operating time, cumulative fault time, number of dynamic adjustments, total number of dynamic adjustments, number of qualified static deviations and total number of static deviations.

[0014] Optionally, based on the operating parameters of each thermal automatic regulation system within a preset time period, the operation rate, removal rate, dynamic regulation qualified rate and static deviation qualified rate of each thermal automatic regulation system are obtained, including:

[0015] For each thermal automatic adjustment system:

[0016] Calculate the ratio of the cumulative operation time of the thermal automatic regulation system to the preset operation time, and determine the operation rate of each thermal automatic regulation system;

[0017] Calculate the ratio of the accumulated failure time of the thermal automatic regulation system to the preset time length, and determine the removal rate of each thermal automatic regulation system;

[0018] Calculate the ratio of the number of dynamic adjustment qualified times of the thermal automatic adjustment system within a preset time period to the total number of dynamic adjustment times, and determine the dynamic adjustment qualified rate of each thermal automatic adjustment system;

[0019] Calculate the ratio of the number of static deviations that are qualified for the thermal automatic regulation system within a preset time period to the total number of static deviations, and determine the static deviation qualified rate of each thermal automatic regulation system.

[0020] Optionally, the number of qualified dynamic adjustments and the total number of dynamic adjustments of the thermal automatic adjustment system within the preset time are determined by:

[0021] For each thermal automation system:

[0022] Obtain the process parameters of the thermal automatic adjustment system at each moment within a preset time period;

[0023] If the absolute value of the difference between the process parameter of the thermal automatic adjustment system at the current moment and the preset process parameter is greater than the first preset threshold, the current moment is determined to be an abnormal moment, the process parameter of the thermal automatic adjustment system is adjusted and the adjustment timing is started until the absolute value of the difference between the process parameter of the thermal automatic adjustment system after adjustment and the preset process parameter is less than the second preset threshold, and the start state is kept timing; wherein the first preset threshold is greater than the second preset threshold;

[0024] If within the duration of the state holding timing, the difference between the process parameter of the thermal automatic adjustment system and the preset process parameter is absolutely smaller than the second preset threshold value, and when the duration of the state holding timing is greater than the preset state holding duration, the adjustment timing is stopped, and the duration of the adjustment timing is counted;

[0025] If the adjustment timing duration is less than the preset adjustment duration, the corresponding abnormal moment is determined as the adjustment qualified moment;

[0026] The number of abnormal moments within the preset time length is used as the total number of dynamic adjustments of the thermal automatic regulation system within the preset time length, and the number of qualified adjustment moments within the preset time length is used as the qualified number of dynamic adjustments of the thermal automatic regulation system within the preset time length.

[0027] Optionally, the qualified number of static deviations and the total number of static deviations of the thermal automatic regulation system within a preset time period are determined by:

[0028] For each thermal automation system:

[0029] Obtain the process parameters of the thermal automatic adjustment system at each moment within a preset time period;

[0030] Determine the moment when the absolute value of the difference between the process parameter of the thermal automatic adjustment system and the preset process parameter is less than a second preset threshold as the stable moment;

[0031] The number of stable moments is taken as the qualified number of static deviations within the preset time length, and the number of multiple moments is taken as the total number of static deviations within the preset time length.

[0032] Optionally, the risk level of the thermal automatic regulation system is determined based on the overall automatic input rate, overall operation rate, overall removal rate, overall dynamic regulation qualified rate and overall static deviation qualified rate of the thermal automatic regulation system, including:

[0033] Calculate the absolute value of the difference between the overall automatic input rate, the overall operation rate, the overall removal rate, the overall dynamic adjustment qualified rate and the overall static deviation qualified rate of the thermal automatic adjustment system and the corresponding preset index values; wherein the preset index values ​​include: the preset overall automatic input rate, the preset overall operation rate, the preset overall removal rate, the preset overall dynamic adjustment qualified rate and the preset overall static deviation qualified rate;

[0034] The absolute value of each difference is calculated using the following formula to obtain the risk score of the thermal automatic regulation system;

[0035] S=T1*ω1+T2*ω2+T3*ω3+T4*ω4+T5*ω5; wherein S represents the risk score of the thermal automatic regulation system, T1 represents the absolute value of the difference between the overall automatic input rate and the preset overall automatic input rate, ω1 represents the weight value corresponding to the absolute value of the difference between the overall automatic input rate and the preset overall automatic input rate, T2 represents the absolute value of the difference between the overall operation rate and the preset overall operation rate, ω2 represents the weight value corresponding to the absolute value of the difference between the overall operation rate and the preset overall operation rate, T3 represents the difference between the overall removal rate and the preset overall The absolute value of the difference in resection rate, ω3 represents the weight value corresponding to the absolute value of the difference between the overall resection rate and the preset overall resection rate, T4 represents the absolute value of the difference between the overall dynamic adjustment qualified rate and the preset overall dynamic adjustment qualified rate, ω4 represents the weight value corresponding to the absolute value of the difference between the overall dynamic adjustment qualified rate and the preset overall dynamic adjustment qualified rate, T5 represents the absolute value of the difference between the overall static deviation qualified rate and the preset overall static deviation qualified rate, ω5 represents the weight value corresponding to the absolute value of the difference between the overall static deviation qualified rate and the preset overall static deviation qualified rate;

[0036] The risk score of the thermal automatic regulation system is matched with a preset risk score level table to determine the risk level of the thermal automatic regulation system; wherein the preset risk score level table is used to characterize the mapping relationship between the risk score of the thermal automatic regulation system and the risk level of the thermal automatic regulation system.

[0037] Optionally, it also includes:

[0038] The risk level of the thermal automatic regulation system is output and displayed.

[0039] In a second aspect of the embodiments of the present invention, a risk assessment device for a thermal automatic regulation system is provided, comprising:

[0040] A data acquisition module is used to obtain the current operation mode of multiple thermal automatic regulation systems and the operation parameters of multiple thermal automatic regulation systems within a preset time period;

[0041] An input rate calculation module is used to calculate the ratio of the number of thermal automatic regulation systems whose current operation mode is the automatic operation mode to the total number of multiple thermal automatic regulation systems, and determine the overall automatic input rate of the thermal automatic regulation system;

[0042] An index calculation module is used to obtain the operation rate, removal rate, dynamic adjustment qualified rate and static deviation qualified rate of each thermal automatic regulation system based on the operating parameters of each thermal automatic regulation system within a preset time period;

[0043] The individual weighted module is used to perform weighted average on the operation rate, removal rate, dynamic regulation qualified rate and static deviation qualified rate of multiple thermal automatic regulation systems, and obtain the overall operation rate, overall removal rate, overall dynamic regulation qualified rate and overall static deviation qualified rate of the thermal automatic regulation system;

[0044] The risk delineation module is used to delineate the risk level based on the overall automatic input rate, overall operation rate, overall removal rate, overall dynamic adjustment qualified rate and overall static deviation qualified rate of the thermal automatic regulation system, so as to determine the risk level of the thermal automatic regulation system.

[0045] In a third aspect of the embodiments of the present invention, an electronic device is provided, including: a processor and a memory, wherein the memory stores machine-readable instructions executable by the processor, and when the machine-readable instructions are executed by the processor, the above-mentioned thermal automatic regulation system risk assessment method is executed.

[0046] In a fourth aspect of the embodiments of the present invention, a computer-readable storage medium is provided, storing computer instructions, which, when executed on a computer, enable the computer to execute the above-mentioned thermal automatic regulation system risk assessment method.

[0047] Beneficial effects of the present invention:

[0048] (1) More comprehensive risk assessment: multiple indicators such as automatic input rate, operation rate, removal rate, dynamic adjustment qualified rate and static deviation qualified rate are considered to avoid the limitation of a single indicator.

[0049] (2) Implementation monitoring: Ability to monitor system operation status in real time, detect potential risks in a timely manner, and conduct early warning and intervention.

[0050] (3) Improve system safety and reliability: High-risk systems can be identified in advance, so that maintenance, equipment replacement and other measures can be taken to reduce the probability of failure.

[0051] Other features and advantages of the embodiments of the present invention will be described in detail in the subsequent detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0052] The accompanying drawings are used to provide a further understanding of the embodiments of the present invention and constitute a part of the specification. Together with the following specific implementations, they are used to explain the embodiments of the present invention, but do not constitute a limitation on the embodiments of the present invention. In the accompanying drawings:

[0053] Figure 1 It is a schematic flow chart of a risk assessment method for a thermal automatic regulation system provided by an embodiment of the present invention;

[0054] Figure 2 It is a structural schematic diagram of a risk assessment device for a thermal automatic regulation system provided in an embodiment of the present invention. DETAILED DESCRIPTION

[0055] The specific implementation of the embodiment of the present invention is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described here is only used to illustrate and explain the embodiment of the present invention, and is not used to limit the embodiment of the present invention.

[0056] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application.

[0057] In the description of the embodiments of the present application, the technical terms "first", "second", etc. are only used to distinguish different objects, and cannot be understood as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the indicated technical features. In the description of the embodiments of the present application, the meaning of "multiple" is more than two, unless otherwise clearly and specifically defined.

[0058] Embodiment 1

[0059] Please refer to Figure 1 , Figure 1 : is a flow chart of a method for risk assessment of a thermal automatic regulation system provided by an embodiment of the present invention, the method comprising the following steps:

[0060] S100, obtaining current operation modes of multiple thermal automatic regulation systems and operation parameters of multiple thermal automatic regulation systems within a preset time period;

[0061] The current operation mode of the thermal automatic regulation system usually refers to the control strategy or operation state adopted by the system at a specific moment. Among them, the current operation mode of the thermal automatic regulation system includes manual operation mode and automatic operation mode.

[0062] In one embodiment, the operating parameters include: cumulative operation time, cumulative fault time, number of dynamic adjustments, total number of dynamic adjustments, number of static deviation passes, and total number of static deviations.

[0063] The cumulative operation time of the thermal automatic regulation system refers to the total time of normal operation of the system from the start of system operation to the statistical time. This indicator reflects the stability and reliability of the system.

[0064] The cumulative failure time of the thermal automatic regulation system refers to the total time from the start of the system operation to the statistical time when the system cannot operate normally due to failure. This indicator can be used to evaluate the system's failure rate and the timeliness of maintenance.

[0065] The number of dynamic adjustments of the thermal automatic adjustment system refers to the number of times the system makes dynamic adjustments in order to maintain the set working parameters within a certain statistical period. Dynamic adjustment usually occurs when disturbances occur in the production process, and the system offsets these disturbances through adjustment.

[0066] The total number of dynamic adjustments of the thermal automatic adjustment system refers to the total number of dynamic adjustments made by the system within a certain statistical period. It reflects the workload and adjustment frequency of the system during the entire operation cycle.

[0067] The qualified number of static deviations of thermal automatic regulation system refers to the number of times that the deviation between the actual working parameters and the set parameters is within the allowable range in a certain statistical period when the system is in a stable state. The qualified number of static deviations can be used to evaluate the control accuracy of the system.

[0068] The total number of static deviations of the thermal automatic regulation system refers to the total number of deviations between the actual working parameters and the set parameters of the system in a stable state within a certain statistical period, regardless of whether these deviations are within the allowable range. By comparing the number of qualified static deviations with the total number, the qualified rate of the system can be obtained.

[0069] S200, calculating the ratio of the number of thermal automatic regulation systems whose current operation mode is the automatic operation mode to the total number of the plurality of thermal automatic regulation systems, and determining the overall automatic input rate of the thermal automatic regulation systems;

[0070] Specifically, the thermal automatic regulation system is divided into manual operation mode and automatic operation mode. The thermal automatic regulation system is considered to be put into operation in the automatic operation mode, and is considered to be cut off in the manual operation mode. The overall automatic input rate of the thermal automatic regulation system is to calculate the proportion of the automatic mode of all thermal automatic regulation systems in the desulfurization system based on the real-time data of the DCS.

[0071] The calculation formula for the overall automatic start-up rate of the thermal automatic regulation system is: θat = Sat / S*100%; wherein: θat represents the overall automatic start-up rate of the thermal automatic regulation system, Sat represents the number of thermal automatic regulation systems currently in automatic operation mode in the desulfurization system, and S represents the number of thermal automatic regulation systems included in the desulfurization system.

[0072] The overall automatic input rate of the thermal automatic regulation system can be calculated and displayed in real time on the DCS screen, realizing real-time technical supervision. When the overall automatic input rate of the thermal automatic regulation system is lower than a certain standard, an alarm will be issued to remind manual intervention to avoid adverse effects caused by manual operation of the system.

[0073] In one embodiment, when the overall automatic input rate of the thermal automatic regulation system is lower than a certain standard, manual intervention is performed in the following manner:

[0074] The thermal automatic regulation system includes two operation modes, manual operation mode and automatic operation mode. In the manual operation mode, the actuator opening is manually controlled (the actuator opening range is generally 0-100%), and the opening will not change after being given once. Since the actual value of the parameter controlled by the thermal automatic regulation system fluctuates frequently, it is necessary to adjust the actuator opening frequently to control the fluctuation of the target accordingly. In the manual state, manual adjustments are required. In the automatic state, the DCS automatically outputs the actuator opening according to the PID adjustment. The so-called input rate refers to the "automatic state" input rate. A low input rate often means that the PID control of the automatic regulation system temporarily fails to exit the automatic mode and enter the manual operation mode. In this way, it is necessary to manually adjust the PID parameters, and then put a thermal automatic regulation system into the automatic operation mode through the manual automatic switching switch.

[0075] S300, based on the operating parameters of each thermal automatic regulation system within a preset time period, obtaining the operation rate, removal rate, dynamic regulation qualified rate and static deviation qualified rate of each thermal automatic regulation system;

[0076] The operation rate of thermal automatic regulation system refers to the proportion of normal operation time of the system in a period of time to the total time. It is usually used to measure the availability and reliability of the system.

[0077] The cut-off rate of the thermal automatic regulation system refers to the ratio of the number of times the system is cut off (i.e. the automatic regulation function is stopped and switched to manual or shutdown state) due to failure or other reasons within a period of time to the total number of system operations. It reflects the frequency of manual intervention required when the system encounters problems.

[0078] The dynamic adjustment qualification rate of the thermal automatic adjustment system refers to the proportion of the number of times the adjustment results meet the predetermined standards in the total number of dynamic adjustments during the system's dynamic adjustment process. This indicator reflects the effectiveness and control accuracy of the system in dealing with process disturbances.

[0079] The static deviation qualified rate of the thermal automatic regulation system refers to the ratio of the number of times the deviation between the actual working parameters and the set parameters is within the allowable range to the total number of measurements when the system is running stably. This indicator is used to evaluate the control accuracy of the system in steady state.

[0080] In one embodiment, step S300 specifically includes:

[0081] For each thermal automatic adjustment system:

[0082] S310, calculating the ratio of the cumulative operation time of the thermal automatic regulation system to the preset operation time, and determining the operation rate of each thermal automatic regulation system;

[0083] Specifically, the operation rate of the thermal automatic regulation system reflects the current system investment situation, which is a time section. The overall evaluation of the system investment also depends on the automatic investment situation within a period of time, so the cumulative operation rate of the thermal automatic regulation system should be introduced here.

[0084] The calculation formula for the commissioning rate of the thermal automatic regulation system is: θ1=T1 / Tntr*100%; where θ1 represents the commissioning rate of the thermal automatic regulation system, T1 represents the cumulative operation time of the thermal automatic regulation system, and the points are accumulated according to the DCS input status according to time, and Tntr: represents the preset duration.

[0085] When the operation rate of the thermal automatic regulation system is lower than a certain standard, it means that the overall operation status of the regulation system is insufficient within the month, and an alarm is issued to remind the operating personnel to deal with it in time, so as to make the automatic operation time longer. The weighted average of the operation rates of multiple thermal automatic regulation systems in the entire desulfurization system is taken to obtain the overall operation rate of the thermal automatic regulation system. Similarly, when the overall operation rate is lower than a certain standard, an alarm is issued to remind the operating personnel to intervene and deal with it, so as to make the automatic operation time longer and avoid the expansion of the problem.

[0086] S320, calculating the ratio of the accumulated failure time of the thermal automatic regulation system to the preset time length, and determining the removal rate of each thermal automatic regulation system;

[0087] Specifically, the automatic control system frequently fails and is then put back into automatic operation. In fact, the system stability is not very good. In this case, the thermal automatic control system's removal rate is a monitoring indicator.

[0088] The calculation formula of the removal rate of the thermal automatic regulation system is: θct=Nct / Tntr*100%; wherein θct represents the removal rate of the thermal automatic regulation system, Nct represents the accumulated failure time of the thermal automatic regulation system, and Tntr represents the preset duration.

[0089] The higher the removal rate, the more unstable the control level. When the removal rate of the thermal automatic regulation system is greater than a certain standard, it means that the automatic regulation stability of the thermal automatic regulation system is seriously insufficient, and an alarm is issued to remind the operating personnel to deal with it in time. The removal rates of multiple regulation systems in the entire desulfurization system are weighted averaged to obtain the overall removal rate of the regulation system. Similarly, when the overall removal is lower than a certain standard, an alarm is issued to remind the operating personnel to intervene. By adjusting the PID parameters, the system can be made more stable and less likely to exit the automatic state frequently, that is, the removal rate is reduced to avoid the expansion of the problem.

[0090] S330, calculating the ratio of the number of dynamic adjustment qualified times of the thermal automatic adjustment system within a preset time period to the total number of dynamic adjustment times, and determining the dynamic adjustment qualified rate of each thermal automatic adjustment system;

[0091] In one embodiment, the thermal automatic adjustment system includes a limestone slurry supply automatic adjustment system, a vacuum belt conveyor thickness adjustment system, a mill water supply automatic adjustment system, and a booster fan inlet pressure automatic adjustment system. Therefore, the dynamic adjustment qualified rate of the thermal automatic adjustment system corresponds to the dynamic adjustment qualified rate of the limestone slurry supply automatic adjustment system, the dynamic adjustment qualified rate of the vacuum belt conveyor thickness adjustment system, the dynamic adjustment qualified rate of the mill water supply automatic adjustment system, and the dynamic adjustment qualified rate of the booster fan inlet pressure automatic adjustment system.

[0092] It is understandable that the thermal automatic regulation system is a constant value control system, that is, the set value of the regulated variable does not change with time. Therefore, the change in the actual value of the regulated variable is generally not caused by the change in the set value, but by internal or external disturbances. The ability to respond to external disturbances is the manifestation of dynamic characteristics. Therefore, the dynamic characteristics of the system are measured by the size of the overshoot after the disturbance and the time to return to a stable state. The dynamic regulation pass rate of the thermal automatic regulation system measures the effectiveness and control accuracy of the system in responding to process disturbances.

[0093] It should be noted that although the dynamic adjustment pass rate of the thermal automatic adjustment system includes the dynamic adjustment pass rate of the limestone slurry supply automatic adjustment system, the dynamic adjustment pass rate of the vacuum belt conveyor thickness adjustment system, the dynamic adjustment pass rate of the mill water supply automatic adjustment system and the dynamic adjustment pass rate of the booster fan inlet pressure automatic adjustment system, any one dynamic adjustment pass rate can be selected when participating in the risk assessment of the thermal automatic adjustment system.

[0094] Specifically, the qualified number of dynamic adjustments and the total number of dynamic adjustments of the thermal automatic adjustment system within the preset time are determined by the following method:

[0095] For each thermal automation system:

[0096] S331, obtaining the process parameters of the thermal automatic adjustment system at each moment within a preset time period;

[0097] S332: if the absolute value of the difference between the process parameter of the thermal automatic adjustment system at the current moment and the preset process parameter is greater than the first preset threshold, the current moment is determined to be an abnormal moment, the process parameter of the thermal automatic adjustment system is adjusted and the adjustment timing is started, until the absolute value of the difference between the process parameter of the thermal automatic adjustment system after adjustment and the preset process parameter is less than the second preset threshold, the start state is kept timing; wherein the first preset threshold is greater than the second preset threshold;

[0098] S333, if within the duration of the state holding timing, the difference between the process parameter of the thermal automatic adjustment system and the preset process parameter is absolutely smaller than the second preset threshold value, and when the duration of the state holding timing is greater than the preset state holding duration, stop the adjustment timing, and count the duration of the adjustment timing;

[0099] S334, if the adjustment timing duration is less than the preset adjustment duration, determining the corresponding abnormal moment as the adjustment qualified moment;

[0100] S335, taking the number of abnormal moments within the preset time as the total number of dynamic adjustments of the thermal automatic adjustment system within the preset time, and taking the number of qualified adjustment moments within the preset time as the qualified number of dynamic adjustments of the thermal automatic adjustment system within the preset time.

[0101] Steps S331 to S335 are steps for calculating the dynamic adjustment qualified rate of the thermal automatic adjustment system. According to the above, the dynamic adjustment qualified rate of the thermal automatic adjustment system includes the dynamic adjustment qualified rate of the limestone slurry supply automatic adjustment system, the dynamic adjustment qualified rate of the vacuum belt thickness adjustment system, the dynamic adjustment qualified rate of the mill water supply automatic adjustment system and the dynamic adjustment qualified rate of the booster fan inlet pressure automatic adjustment system. The calculation logic of the dynamic adjustment qualified rate of each system is consistent, but the process parameters used in the judgment process are different, that is, the process parameter of the limestone slurry supply automatic adjustment system is the pH value of the absorption tower slurry pool, the process parameter of the booster fan inlet pressure automatic adjustment system is the booster fan outlet pressure, the process parameter of the vacuum belt thickness adjustment system is the gypsum thickness, and the process parameter of the mill water supply automatic adjustment system is the liquid level of the mill recirculation box.

[0102] In order to facilitate understanding of steps S331 to S335, the following further describes the process of calculating the dynamic adjustment pass rate of the limestone slurry supply automatic adjustment system, the vacuum belt thickness adjustment system, the mill water supply automatic adjustment system, and the booster fan inlet pressure automatic adjustment system:

[0103] (1) Limestone slurry supply and adjustment system:

[0104] The control target of the limestone slurry supply adjustment system is the pH value of the absorber slurry pool. The limestone slurry (alkaline) is added from the inlet section of the absorber circulation pipeline, and finally sprayed downward from the absorber spray layer, mixed with the flue gas flowing from bottom to top and absorbing the SO2 therein. The limestone slurry entering the absorber slurry pool continues to be sucked into the absorber spray layer through the absorber circulation pipeline for circulation reaction. Since the volume of the absorber slurry pool is large, generally more than 2,000 cubic meters, the entire reaction process is relatively slow. When the pH value of the absorber slurry pool deviates from the preset pH value of the absorber slurry pool (that is, overshoot occurs), under normal circumstances, the overshoot can be adjusted by the limestone slurry supply adjustment system after about 10 minutes, and the overshoot can return to a relatively small value, that is, the limestone slurry supply adjustment system returns to a stable state. In this way, a judgment logic can be established. When the overshoot meets a certain value, it is considered that the limestone slurry supply adjustment system is out of a stable state, and the timing starts. If it returns to normal in 10 minutes, it is qualified, and if it still cannot return to normal in 10 minutes, it is unqualified. Then the number of overshoots that occur each month and the number of qualified adjustments among these times are automatically counted, and the qualified rate of dynamic characteristics after overshoot is calculated.

[0105] The specific judgment logic is as follows:

[0106] Monitoring pH value difference: The system needs to monitor the difference between the pH value of the absorber slurry pool and the preset pH value of the absorber slurry pool in real time.

[0107] Timing start condition: When the absolute difference between the pH value of the absorption tower slurry pool and the preset pH value of the absorption tower slurry pool is greater than 0.2, the system starts timing.

[0108] Stop timing condition: When the absolute difference between the pH value of the absorption tower slurry pool and the preset pH value of the absorption tower slurry pool is less than 0.1, and this state lasts for more than 5 minutes, the system stops timing.

[0109] If within these 5 minutes, the absolute difference between the actual pH value and the set value is greater than or equal to 0.1 again, the 5-minute timing needs to be restarted.

[0110] Determine the dynamic characteristics of the adjustment:

[0111] If the accumulated timing time is less than 10 minutes after the timing is stopped, the dynamic characteristics of the limestone slurry supply and regulation system are considered to be qualified.

[0112] If the accumulated timing time exceeds 10 minutes after the timing is stopped, the dynamic characteristics of the limestone slurry supply and regulation system are considered to be unqualified.

[0113] (2) Booster fan inlet pressure automatic adjustment system:

[0114] The control target of the booster fan inlet pressure automatic adjustment system is the booster fan outlet pressure. Since the inertia of wind pressure control is very small, the pressure will change instantly after the actuator is activated. When the booster fan outlet pressure deviates from the preset booster fan outlet pressure by a large amount (i.e. overshoot occurs), under normal circumstances, the overshoot amount can return to a relatively small value after about 30 seconds through the booster fan inlet pressure automatic adjustment system, that is, the booster fan inlet pressure automatic adjustment system returns to a stable state. In this way, a judgment logic can be established. When the overshoot amount meets a certain value, it is considered that the booster fan inlet pressure automatic adjustment system is out of the stable state, and the timing starts. If it returns to normal in 30 seconds, it is qualified. If it still cannot return to normal in 30 seconds, it is unqualified. Then the number of overshoots each month and the number of qualified adjustments among these times are automatically counted, and then the qualified rate of dynamic characteristics after overshoot is calculated.

[0115] The specific judgment logic is as follows:

[0116] Monitoring pressure difference: The system needs to monitor the difference between the pressure at the booster fan outlet and the preset booster fan outlet pressure in real time.

[0117] Timing start condition: When the absolute difference between the booster fan outlet pressure and the preset booster fan outlet pressure is greater than 200Pa, the system starts timing.

[0118] Stop timing condition: When the absolute difference between the booster fan outlet pressure and the preset booster fan outlet pressure is less than 100Pa, and this state lasts for more than 20 seconds, the system stops timing.

[0119] If within these 20 seconds, the absolute difference between the booster fan outlet pressure and the preset booster fan outlet pressure is greater than or equal to 100 Pa again, the 20-second timing needs to be restarted.

[0120] Determine the dynamic characteristics of the adjustment:

[0121] If the accumulated timing time is less than 30 seconds after the timing is stopped, the dynamic characteristics of the booster fan outlet pressure regulation system are considered to be qualified.

[0122] If the accumulated timing time exceeds 30 seconds after the timing is stopped, the dynamic characteristics of the booster fan outlet pressure regulation system are considered to be unqualified.

[0123] (3) Vacuum belt conveyor thickness adjustment system:

[0124] The control target of the vacuum belt conveyor thickness adjustment system is the thickness of the gypsum. The thickness of the gypsum is measured and transmitted to the DCS through a thickness gauge. Since the transmission speed of the vacuum belt conveyor is slow and the thickness gauge is at the downstream rear end of the vacuum belt conveyor, it takes about 2 minutes to measure the gypsum formed after changing the speed of the vacuum belt conveyor to change the feeding amount. When the gypsum thickness deviates from the preset gypsum thickness by a large amount (i.e., overshoot occurs), under normal circumstances, the overshoot amount can be returned to a relatively small value after about 2 minutes through the adjustment of the vacuum belt conveyor thickness adjustment system, that is, the vacuum belt conveyor thickness adjustment system returns to a stable state. In this way, a judgment logic can be established. When the overshoot amount meets a certain value, it is considered that the vacuum belt conveyor thickness adjustment system is out of the stable state, and the timing starts. If it returns to normal in 2 minutes, it is qualified. If it still cannot return to normal in 2 minutes, it is unqualified. Then the number of overshoots each month and the number of qualified adjustments among these times are automatically counted, and then the qualified rate of dynamic characteristics after overshoot is calculated.

[0125] The specific judgment logic is as follows:

[0126] Monitoring thickness difference: The system needs to monitor the difference between the plaster thickness and the preset plaster thickness in real time.

[0127] Timing start condition: When the absolute difference between the plaster thickness and the preset plaster thickness is greater than 10mm, the system starts timing.

[0128] Stop timing condition: When the absolute difference between the plaster thickness and the preset plaster thickness is less than 5mm, and this state lasts for more than 1 minute, the system stops timing.

[0129] If within this 1 minute, the absolute difference between the plaster thickness and the preset plaster thickness is greater than or equal to 10 mm again, it is necessary to restart the 1 minute timing.

[0130] Determine the dynamic characteristics of the adjustment:

[0131] If the accumulated timing time is less than 2 minutes after the timing is stopped, the dynamic characteristics of the gypsum thickness adjustment system are considered to be qualified.

[0132] If the accumulated timing time exceeds 2 minutes after the timing is stopped, the dynamic characteristics of the gypsum thickness adjustment system are considered to be unqualified.

[0133] (4) Grinding mill water supply automatic adjustment system:

[0134] The control target of the mill water supply automatic adjustment system is the liquid level of the mill recirculation box. The liquid level is measured by a level gauge and the signal is transmitted to the distributed control system (DCS). Since the mill water supply system has a relatively slow response speed and the level gauge is installed downstream of the mill recirculation box, when the water supply is adjusted to change the liquid level, it takes a certain amount of time for the change in liquid level to be reflected on the level gauge. Due to the large water supply, the system can generally return to normal within 2 minutes after overshoot. When the liquid level of the mill recirculation box deviates from the preset mill recirculation box liquid level (that is, overshoot occurs), under normal circumstances, the overshoot amount can return to a relatively small value after about 2 minutes through the mill water supply automatic adjustment system, that is, the mill water supply automatic adjustment system returns to a stable state. In this way, a judgment logic can be established. When the overshoot amount meets a certain value, it is considered that the mill water supply automatic adjustment system is out of the stable state, and the timing starts. If it returns to normal in 2 minutes, it is qualified, and if it still cannot return to normal in 2 minutes, it is unqualified. Then the number of overshoots that occur each month and the number of qualified adjustments among these times are automatically counted, and the qualified rate of dynamic characteristics after overshoot is calculated.

[0135] The specific judgment logic is as follows:

[0136] Monitoring of liquid level differences: The system needs to monitor the difference between the liquid level of the mill's recirculation box and the liquid level of the preset mill's recirculation box in real time.

[0137] Start timing condition: When the absolute difference between the liquid level of the mill's recirculation box and the preset mill's recirculation box liquid level is greater than 100mm, the system starts timing.

[0138] Stop timing condition: When the absolute difference between the liquid level of the mill's recirculation box and the liquid level of the preset mill's recirculation box is less than 50 mm, and this state lasts for more than 1 minute, the system stops timing.

[0139] If within this 1 minute, the absolute difference between the liquid level of the mill's recirculation box and the liquid level of the preset mill's recirculation box is again greater than or equal to 100 mm, the 1-minute timing needs to be restarted.

[0140] Determine the dynamic characteristics of the adjustment:

[0141] If the accumulated timing time is less than 2 minutes after the timing is stopped, the dynamic characteristics of the mill water supply automatic regulation system are considered qualified.

[0142] If the accumulated timing time exceeds 2 minutes after the timing is stopped, the dynamic characteristics of the mill water supply automatic regulation system are considered to be unqualified.

[0143] S340, calculating the ratio of the number of static deviations qualified for the thermal automatic regulation system within a preset time period to the total number of static deviations, and determining the static deviation qualified rate of each thermal automatic regulation system.

[0144] In one embodiment, the thermal automatic adjustment system includes a limestone slurry supply automatic adjustment system, a vacuum belt conveyor thickness adjustment system, a mill water supply automatic adjustment system, and a booster fan inlet pressure automatic adjustment system. Therefore, the dynamic adjustment qualified rate of the thermal automatic adjustment system corresponds to the static deviation qualified rate of the limestone slurry supply automatic adjustment system, the static deviation qualified rate of the vacuum belt conveyor thickness adjustment system, the static deviation qualified rate of the mill water supply automatic adjustment system, and the static deviation qualified rate of the booster fan inlet pressure automatic adjustment system.

[0145] It can be understood that the static characteristics of the thermal automatic regulation system refer to the static deviation when the system is in a stable state, that is, the absolute value of the difference between the actual value and the set value is less than the set value. This indicator is generally an instantaneous value, that is, the absolute value of the difference between the actual value and the set value in the stable state is taken as the static deviation as a supervision indicator, and then the absolute value of the difference between the actual value and the set value at multiple times in each month and the values ​​among these values ​​that are less than the set value are automatically counted, so as to calculate their ratio and obtain the static deviation pass rate.

[0146] It should be noted that although the static deviation pass rate of the thermal automatic regulation system includes the static deviation pass rate of the limestone slurry supply automatic regulation system, the static deviation pass rate of the vacuum belt conveyor thickness regulation system, the static deviation pass rate of the mill water supply automatic regulation system and the static deviation pass rate of the booster fan inlet pressure automatic regulation system, any one of the static deviation pass rates can be selected when participating in the risk assessment of the thermal automatic regulation system.

[0147] Specifically, the qualified number of static deviations and the total number of static deviations of the thermal automatic regulation system within the preset time are determined by the following method:

[0148] For each thermal automation system:

[0149] S341, obtaining the process parameters of the thermal automatic adjustment system at each moment within a preset time period;

[0150] S342, determining the moment when the absolute value of the difference between the process parameter of the thermal automatic adjustment system and the preset process parameter is less than a second preset threshold as a stable moment;

[0151] S343, taking the number of stable moments as the qualified number of static deviations within the preset time length, and taking the numbers of multiple moments as the total number of static deviations within the preset time length.

[0152] , steps S41 to S343 are steps for calculating the static deviation qualified rate of the thermal automatic regulation system. According to the above, the static deviation qualified rate of the thermal automatic regulation system includes the static deviation qualified rate of the limestone slurry supply automatic regulation system, the static deviation qualified rate of the vacuum belt thickness regulation system, the static deviation qualified rate of the mill water supply automatic regulation system and the static deviation qualified rate of the booster fan inlet pressure automatic regulation system. The calculation logic of the static deviation qualified rate of each system is consistent, but the process parameters used in the judgment process are different, that is, the process parameter of the limestone slurry supply automatic regulation system is the pH value of the absorption tower slurry pool, the process parameter of the booster fan inlet pressure automatic regulation system is the booster fan outlet pressure, the process parameter of the vacuum belt thickness regulation system is the gypsum thickness, and the process parameter of the mill water supply automatic regulation system is the liquid level of the mill recirculation box.

[0153] In order to facilitate understanding of steps S341 to S343, the following further describes the process of calculating the static deviation pass rate of the limestone slurry supply automatic adjustment system, the vacuum belt thickness adjustment system, the mill water supply automatic adjustment system, and the booster fan inlet pressure automatic adjustment system:

[0154] (1) Limestone slurry automatic adjustment system:

[0155] Monitoring the difference in pH values ​​at multiple times: The system needs to monitor the difference between the pH value of the absorption tower slurry pool at multiple times and the pH value of the preset absorption tower slurry pool.

[0156] Determine the stabilization moment: The moment when the absolute value of the difference between the pH value of the absorption tower slurry pool and the preset pH value of the absorption tower slurry pool is less than the set value is determined as the stabilization moment.

[0157] Calculate the static deviation pass rate: the number of stable moments / the total number of multiple moments = calculate the static deviation pass rate.

[0158] (2) Booster fan inlet pressure automatic adjustment system:

[0159] Monitoring the difference in booster fan outlet pressure at multiple times: The system needs to monitor the difference between the booster fan outlet pressure at multiple times and the preset booster fan outlet pressure.

[0160] Determine the stabilization moment: determine the moment when the absolute value of the difference between the booster fan outlet pressure and the preset booster fan outlet pressure is less than the set value as the stabilization moment.

[0161] Calculate the static deviation pass rate: the number of stable moments / the total number of multiple moments = calculate the static deviation pass rate.

[0162] (3) Vacuum belt conveyor thickness adjustment system:

[0163] Monitoring the difference in plaster thickness at multiple times: The system needs to monitor the difference between the plaster thickness at multiple times and the preset plaster thickness.

[0164] Determine the stabilization moment: determine the moment when the absolute value of the plaster thickness and the preset plaster thickness is less than the set value as the stabilization moment.

[0165] Calculate the static deviation pass rate: the number of stable moments / the total number of multiple moments = calculate the static deviation pass rate.

[0166] (4) Grinding mill water supply automatic adjustment system:

[0167] Monitoring the difference in the liquid level of the recirculation box of the mill at multiple times: The system needs to monitor the difference between the liquid level of the recirculation box of the mill at multiple times and the liquid level of the recirculation box of the preset mill.

[0168] Determine the stabilization moment: determine the moment when the absolute value of the difference between the liquid level of the recirculation box of the mill and the liquid level of the recirculation box of the preset mill is less than the set value as the stabilization moment.

[0169] Calculate the static deviation pass rate: the number of stable moments / the total number of multiple moments = calculate the static deviation pass rate.

[0170] S400, performing weighted average of the operation rates, removal rates, dynamic regulation qualified rates, and static deviation qualified rates of the plurality of thermal automatic regulation systems, to obtain the overall operation rate, overall removal rate, overall dynamic regulation qualified rate, and overall static deviation qualified rate of the thermal automatic regulation system;

[0171] In one embodiment, it can be specifically calculated by the following formula:

[0172] Taking the overall commissioning rate of the thermal automatic regulation system as an example, Among them, T represents the overall operation rate of the thermal automatic regulation system, T i represents the operation rate of the ith thermal automatic regulation system, ω i Represents the weight value of the commissioning rate of the i-th thermal automatic regulation system.

[0173] In one embodiment, the weight values ​​corresponding to the overall operation rate, overall removal rate, overall dynamic adjustment qualified rate and overall static deviation qualified rate of the thermal automatic regulation system can be reasonably set according to user needs, and the embodiment of the present invention does not make specific limitations on this.

[0174] S500, based on the overall automatic input rate, overall operation rate, overall removal rate, overall dynamic regulation qualified rate and overall static deviation qualified rate of the thermal automatic regulation system, risk level is defined to determine the risk level of the thermal automatic regulation system.

[0175] In one embodiment, step S500 specifically includes:

[0176] S510, calculating the absolute value of the difference between the overall automatic input rate, the overall operation rate, the overall removal rate, the overall dynamic adjustment qualified rate and the overall static deviation qualified rate of the thermal automatic adjustment system and the corresponding preset index values; wherein the preset index values ​​include: a preset overall automatic input rate, a preset overall operation rate, a preset overall removal rate, a preset overall dynamic adjustment qualified rate and a preset overall static deviation qualified rate;

[0177] For example: the overall automatic start-up rate of the thermal automatic regulation system - the preset overall automatic start-up rate.

[0178] S511, using the following formula, calculate the absolute value of each difference to obtain the risk score of the thermal automatic regulation system;

[0179] S=T1*ω1+T2*ω2+T3*ω3+T4*ω4+T5*ω5; wherein S represents the risk score of the thermal automatic regulation system, T1 represents the absolute value of the difference between the overall automatic input rate and the preset overall automatic input rate, ω1 represents the weight value corresponding to the absolute value of the difference between the overall automatic input rate and the preset overall automatic input rate, T2 represents the absolute value of the difference between the overall operation rate and the preset overall operation rate, ω2 represents the weight value corresponding to the absolute value of the difference between the overall operation rate and the preset overall operation rate, T3 represents the difference between the overall removal rate and the preset overall The absolute value of the difference in resection rate, ω3 represents the weight value corresponding to the absolute value of the difference between the overall resection rate and the preset overall resection rate, T4 represents the absolute value of the difference between the overall dynamic adjustment qualified rate and the preset overall dynamic adjustment qualified rate, ω4 represents the weight value corresponding to the absolute value of the difference between the overall dynamic adjustment qualified rate and the preset overall dynamic adjustment qualified rate, T5 represents the absolute value of the difference between the overall static deviation qualified rate and the preset overall static deviation qualified rate, ω5 represents the weight value corresponding to the absolute value of the difference between the overall static deviation qualified rate and the preset overall static deviation qualified rate;

[0180] In one embodiment, before calculating the absolute value of each difference, dedimensionalization is performed to eliminate the influence of inconsistent numerical units of eigenvalues ​​on the calculation results.

[0181] S512, determining the risk level of the thermal automatic regulation system based on matching the risk score of the thermal automatic regulation system with a preset risk score level table; wherein the preset risk score level table is used to characterize the mapping relationship between the risk score of the thermal automatic regulation system and the risk level of the thermal automatic regulation system.

[0182] The preset risk scoring table is introduced as shown in Table 1 below:

[0183] Table 1 Preset risk rating table

[0184] Risk Scoring Failure level 90 Level 1 60 Level 2 40 Level 3 10 Level 4

[0185] In one embodiment, after step S500, the method further includes:

[0186] S600, output and display the risk level of the thermal automatic regulation system.

[0187] In one embodiment, the following steps may be included:

[0188] Step 1: Select a suitable output display device, such as LED display, touch screen, etc.

[0189] Step 2: Develop risk level output display software to achieve the following functions:

[0190] 2.1 Connect with the risk assessment system to obtain real-time risk assessment data.

[0191] 2.2 According to the risk level classification standards, convert the risk assessment data into corresponding levels.

[0192] 2.3 Display the risk level in the form of graphics, color, text, etc. on the output display device.

[0193] 2.4 Set up the alarm function, and when the risk level reaches the preset threshold, an audible and visual alarm will be issued.

[0194] Step 3: Debug and optimize the output display system to ensure its normal operation.

[0195] Beneficial effects of the present invention:

[0196] (1) More comprehensive risk assessment: multiple indicators such as automatic input rate, operation rate, removal rate, dynamic adjustment qualified rate and static deviation qualified rate are considered to avoid the limitation of a single indicator.

[0197] (2) Implementation monitoring: Ability to monitor system operation status in real time, detect potential risks in a timely manner, and conduct early warning and intervention.

[0198] (3) Improve system safety and reliability: High-risk systems can be identified in advance, so that maintenance, equipment replacement and other measures can be taken to reduce the probability of failure.

[0199] Embodiment 2

[0200] Based on the same inventive concept, Figure 2 As shown, the embodiment of the present invention further provides a thermal automatic regulation system risk assessment device 200, comprising:

[0201] The data acquisition module 210 is used to acquire the current operation mode of multiple thermal automatic regulation systems and the operation parameters of multiple thermal automatic regulation systems within a preset time period;

[0202] The input rate calculation module 220 is used to calculate the ratio of the number of thermal automatic regulation systems whose current operation mode is the automatic operation mode to the total number of multiple thermal automatic regulation systems, and determine the overall automatic input rate of the thermal automatic regulation system;

[0203] The index calculation module 230 is used to obtain the operation rate, removal rate, dynamic adjustment qualified rate and static deviation qualified rate of each thermal automatic regulation system based on the operation parameters of each thermal automatic regulation system within a preset time period;

[0204] The individual weighting module 240 is used to perform weighted average on the operation rate, removal rate, dynamic regulation qualified rate and static deviation qualified rate of multiple thermal automatic regulation systems, and obtain the overall operation rate, overall removal rate, overall dynamic regulation qualified rate and overall static deviation qualified rate of the thermal automatic regulation system;

[0205] The risk delineation module 250 is used to delineate the risk level based on the overall automatic input rate, overall operation rate, overall removal rate, overall dynamic adjustment qualified rate and overall static deviation qualified rate of the thermal automatic regulation system, and determine the risk level of the thermal automatic regulation system.

[0206] It should be understood that the device corresponds to the above-mentioned thermal automatic regulation system risk assessment method embodiment, and can execute the various steps involved in the above-mentioned method embodiment. The specific functions of the device can be found in the above description. To avoid repetition, the detailed description is appropriately omitted here. The device includes at least one software function module that can be stored in a memory in the form of software or firmware or solidified in the operating system (OS) of the device.

[0207] Embodiment 3

[0208] Based on the same inventive concept, an embodiment of the present invention also provides an electronic device, including: a processor and a memory, the memory storing machine-readable instructions executable by the processor, and the machine-readable instructions executing the above-mentioned thermal automatic regulation system risk assessment method when executed by the processor.

[0209] In a typical configuration, an electronic device includes one or more processors (CPU), input / output interfaces, network interfaces, and memory.

[0210] The memory may include non-permanent memory in a computer-readable medium, random access memory (RAM) and / or non-volatile memory in the form of read-only memory (ROM) or flash RAM. The memory is an example of a computer-readable medium.

[0211] Computer readable media include permanent and non-permanent, removable and non-removable media that can be implemented by any method or technology to store information. Information can be computer readable instructions, data structures, program modules or other data. Examples of computer storage media include, but are not limited to, phase change memory (PRAM), static random access memory (SRAM), dynamic random access memory (DRAM), other types of random access memory (RAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), flash memory or other memory technology, compact disk read-only memory (CD-ROM), digital versatile disk (DVD) or other optical storage, magnetic cassettes, magnetic tape magnetic disk storage or other magnetic storage devices or any other non-transmission media that can be used to store information that can be accessed by a computing device. As defined herein, computer readable media does not include temporary computer readable media (transitory media), such as modulated data signals and carrier waves.

[0212] Embodiment 4

[0213] Based on the same inventive concept, an embodiment of the present invention further provides a computer-readable storage medium storing computer instructions. When the computer instructions are executed on a computer, the computer executes the above-mentioned thermal automatic regulation system risk assessment method.

[0214] Those skilled in the art will appreciate that the embodiments of the present application may be provided as methods, systems, or computer program products. Therefore, the present application may adopt the form of a complete hardware embodiment, a complete software embodiment, or an embodiment in combination with software and hardware. Moreover, the present application may adopt the form of a computer program product implemented in one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) that include computer-usable program code.

[0215] The present application is described with reference to the flowcharts and / or block diagrams of the methods, devices (systems), and computer program products according to the embodiments of the present application. It should be understood that each process and / or box in the flowchart and / or block diagram, as well as the combination of the processes and / or boxes in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to generate a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 A process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0216] These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the computer-readable memory produce an article of manufacture comprising an instruction device, which implements the process Figure 1 A process or multiple processes and / or boxes Figure 1 A function specified in one or more boxes.

[0217] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operating steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing instructions for implementing the process. Figure 1 A process or multiple processes and / or boxes Figure 1 The steps for the functions specified in one or more boxes.

[0218] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. To avoid unnecessary repetition, the embodiments of the present invention will not further describe various possible combinations.

[0219] In addition, the functional modules in each embodiment of the present application can be integrated together to form an independent part, or each module can exist separately, or two or more modules can be integrated to form an independent part.

[0220] It should also be noted that the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, commodity or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, commodity or device. In the absence of more restrictions, the elements defined by the sentence "comprises a ..." do not exclude the existence of other identical elements in the process, method, commodity or device including the elements.

[0221] The above are only embodiments of the present application and are not intended to limit the present application. For those skilled in the art, the present application may have various changes and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included within the scope of the claims of the present application.

Claims

1. A risk assessment method for a thermal automatic regulation system, characterized in that: include: Obtaining the current operation modes of multiple thermal automatic regulation systems and the operation parameters of multiple thermal automatic regulation systems within a preset time period; Calculate the ratio of the number of thermal automatic regulation systems whose current operation mode is the automatic operation mode to the total number of multiple thermal automatic regulation systems to determine the overall automatic input rate of the thermal automatic regulation system; Based on the operating parameters of each thermal automatic regulation system within a preset time, the operation rate, removal rate, dynamic regulation qualified rate and static deviation qualified rate of each thermal automatic regulation system are obtained; The operation rate, removal rate, dynamic regulation qualified rate and static deviation qualified rate of multiple thermal automatic regulation systems are weighted averaged to obtain the overall operation rate, overall removal rate, overall dynamic regulation qualified rate and overall static deviation qualified rate of the thermal automatic regulation system; The risk level of the thermal automatic regulation system is determined based on the overall automatic input rate, overall operation rate, overall removal rate, overall dynamic regulation qualified rate and overall static deviation qualified rate of the thermal automatic regulation system.

2. The thermal automatic regulation system risk assessment method according to claim 1, characterized in that: The operating parameters include: cumulative operating time, cumulative fault time, number of dynamic adjustments, total number of dynamic adjustments, number of qualified static deviations and total number of static deviations.

3. The thermal automatic regulation system risk assessment method according to claim 2 is characterized in that: Based on the operating parameters of each thermal automatic regulation system within a preset time, the commissioning rate, removal rate, dynamic regulation qualified rate and static deviation qualified rate of each thermal automatic regulation system are obtained, including: For each thermal automatic adjustment system: Calculate the ratio of the cumulative operation time of the thermal automatic regulation system to the preset operation time, and determine the operation rate of each thermal automatic regulation system; Calculate the ratio of the accumulated failure time of the thermal automatic regulation system to the preset time length, and determine the removal rate of each thermal automatic regulation system; Calculate the ratio of the number of dynamic adjustment qualified times of the thermal automatic adjustment system within a preset time period to the total number of dynamic adjustment times, and determine the dynamic adjustment qualified rate of each thermal automatic adjustment system; Calculate the ratio of the number of static deviations that are qualified for the thermal automatic regulation system within a preset time period to the total number of static deviations, and determine the static deviation qualified rate of each thermal automatic regulation system.

4. The thermal automatic regulation system risk assessment method according to claim 3 is characterized in that: The qualified number of dynamic adjustments and the total number of dynamic adjustments of the thermal automatic adjustment system within the preset time are determined by the following method: For each thermal automation system: Obtain the process parameters of the thermal automatic adjustment system at each moment within a preset time period; If the absolute value of the difference between the process parameter of the thermal automatic adjustment system at the current moment and the preset process parameter is greater than the first preset threshold, the current moment is determined to be an abnormal moment, the process parameter of the thermal automatic adjustment system is adjusted and the adjustment timing is started until the absolute value of the difference between the process parameter of the thermal automatic adjustment system after adjustment and the preset process parameter is less than the second preset threshold, and the start state is kept timing; wherein the first preset threshold is greater than the second preset threshold; If within the duration of the state holding timing, the difference between the process parameter of the thermal automatic adjustment system and the preset process parameter is absolutely smaller than the second preset threshold value, and when the duration of the state holding timing is greater than the preset state holding duration, the adjustment timing is stopped, and the duration of the adjustment timing is counted; If the adjustment timing duration is less than the preset adjustment duration, the corresponding abnormal moment is determined as the adjustment qualified moment; The number of abnormal moments within the preset time length is used as the total number of dynamic adjustments of the thermal automatic regulation system within the preset time length, and the number of qualified adjustment moments within the preset time length is used as the qualified number of dynamic adjustments of the thermal automatic regulation system within the preset time length.

5. The thermal automatic regulation system risk assessment method according to claim 4, characterized in that: The qualified number of static deviations and the total number of static deviations of the thermal automatic regulation system within the preset time are determined in the following way: For each thermal automation system: Obtain the process parameters of the thermal automatic adjustment system at each moment within a preset time period; Determine the moment when the absolute value of the difference between the process parameter of the thermal automatic adjustment system and the preset process parameter is less than a second preset threshold as the stable moment; The number of stable moments is taken as the qualified number of static deviations within the preset time length, and the number of multiple moments is taken as the total number of static deviations within the preset time length.

6. The thermal automatic regulation system risk assessment method according to claim 1, characterized in that: The risk level of the thermal automatic regulation system is determined based on the overall automatic input rate, overall operation rate, overall removal rate, overall dynamic regulation qualified rate and overall static deviation qualified rate of the thermal automatic regulation system, including: Calculate the absolute value of the difference between the overall automatic input rate, the overall operation rate, the overall removal rate, the overall dynamic adjustment qualified rate and the overall static deviation qualified rate of the thermal automatic adjustment system and the corresponding preset index values; wherein the preset index values ​​include: the preset overall automatic input rate, the preset overall operation rate, the preset overall removal rate, the preset overall dynamic adjustment qualified rate and the preset overall static deviation qualified rate; The absolute value of each difference is calculated using the following formula to obtain the risk score of the thermal automatic regulation system; S=T1*ω1+T2*ω2+T3*ω3+T4*ω4+T5*ω5; wherein S represents the risk score of the thermal automatic regulation system, T1 represents the absolute value of the difference between the overall automatic input rate and the preset overall automatic input rate, ω1 represents the weight value corresponding to the absolute value of the difference between the overall automatic input rate and the preset overall automatic input rate, T2 represents the absolute value of the difference between the overall operation rate and the preset overall operation rate, ω2 represents the weight value corresponding to the absolute value of the difference between the overall operation rate and the preset overall operation rate, T3 represents the difference between the overall removal rate and the preset overall The absolute value of the difference in resection rate, ω3 represents the weight value corresponding to the absolute value of the difference between the overall resection rate and the preset overall resection rate, T4 represents the absolute value of the difference between the overall dynamic adjustment qualified rate and the preset overall dynamic adjustment qualified rate, ω4 represents the weight value corresponding to the absolute value of the difference between the overall dynamic adjustment qualified rate and the preset overall dynamic adjustment qualified rate, T5 represents the absolute value of the difference between the overall static deviation qualified rate and the preset overall static deviation qualified rate, ω5 represents the weight value corresponding to the absolute value of the difference between the overall static deviation qualified rate and the preset overall static deviation qualified rate; The risk score of the thermal automatic regulation system is matched with a preset risk score level table to determine the risk level of the thermal automatic regulation system; wherein the preset risk score level table is used to characterize the mapping relationship between the risk score of the thermal automatic regulation system and the risk level of the thermal automatic regulation system.

7. The thermal automatic regulation system risk assessment method according to claim 1, characterized in that: Also includes: The risk level of the thermal automatic regulation system is output and displayed.

8. A risk assessment device for a thermal automatic regulation system, characterized in that: include: A data acquisition module is used to obtain the current operation mode of multiple thermal automatic regulation systems and the operation parameters of multiple thermal automatic regulation systems within a preset time period; An input rate calculation module is used to calculate the ratio of the number of thermal automatic regulation systems whose current operation mode is the automatic operation mode to the total number of multiple thermal automatic regulation systems, and determine the overall automatic input rate of the thermal automatic regulation system; An index calculation module is used to obtain the operation rate, removal rate, dynamic adjustment qualified rate and static deviation qualified rate of each thermal automatic regulation system based on the operating parameters of each thermal automatic regulation system within a preset time period; The individual weighted module is used to perform weighted average on the operation rate, removal rate, dynamic regulation qualified rate and static deviation qualified rate of multiple thermal automatic regulation systems, and obtain the overall operation rate, overall removal rate, overall dynamic regulation qualified rate and overall static deviation qualified rate of the thermal automatic regulation system; The risk delineation module is used to delineate the risk level based on the overall automatic input rate, overall operation rate, overall removal rate, overall dynamic adjustment qualified rate and overall static deviation qualified rate of the thermal automatic regulation system, so as to determine the risk level of the thermal automatic regulation system.

9. An electronic device, characterized in that: include: A processor and a memory, wherein the memory stores machine-readable instructions executable by the processor, and when the machine-readable instructions are executed by the processor, the risk assessment method for a thermal automatic regulation system according to any one of claims 1 to 7 is executed.

10. A computer-readable storage medium storing computer instructions, characterized in that: When the computer instructions are executed on a computer, the computer is enabled to execute the thermal automatic regulation system risk assessment method according to any one of claims 1 to 7.

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