Alarm processing method and system of petrochemical equipment, storage medium and processor

Abstract

The embodiment of the invention provides an alarm processing method and system for petrochemical equipment, a storage medium and a processor, and belongs to the technical field of industrial alarm. The alarm processing method for the petrochemical equipment comprises the following steps: receiving an alarm signal of the equipment, and judging an alarm type based on at least one of occurrence frequency and duration of the alarm signal, an association relationship with other alarm signals and an association relationship with an instrument; responding to an alarm signal according to the alarm type; wherein the alarm type comprises at least one of a first type of alarm with the alarm signal occurrence frequency exceeding a first threshold value, a second type of alarm with the alarm signal duration exceeding a second threshold value, a third type of alarm with the alarm signal associated with other alarms, and a fourth type of alarm with the alarm signal associated with an instrument; and when the same alarm signal belongs to a plurality of alarm types, the response sequence of the third type of alarm is prior to that of other alarm types. The embodiment of the invention can improve the alarm quality.

Description

Technical Field

[0001] The present invention relates to the technical field of industrial alarms, and in particular to an alarm processing method, system, storage medium and processor for petrochemical equipment. Background Art

[0002] The petrochemical industry plays an irreplaceable role in economic development, but due to the flammable, explosive, toxic, harmful and radioactive characteristics of the company's production process, various safety accidents occur from time to time.

[0003] Alarm is a direct means to timely discover abnormal conditions in the production process. Formulating effective alarm processing methods can enhance the operator's sensitivity to parameters that deviate from normal operating conditions and grasp the hidden dangers and risks of device operation in real time, which is of great significance for ensuring the long-term safe and stable operation of the device. At present, petrochemical enterprises still face many problems in alarm processing:

[0004] 1) Alarm flooding leads to degraded alarm performance;

[0005] 2) Too many or too few alarm settings, and important risks cannot be effectively alarmed;

[0006] 3) The priority division of alarm parameters is unreasonable;

[0007] 4) The lack of standardized means or tools for evaluating alarms leads to unscientific alarm assessment indicators. Summary of the invention

[0008] The purpose of the embodiments of the present invention is to provide an alarm processing method, system, storage medium and processor for petrochemical equipment, which can solve or partially solve the problems existing in the prior art.

[0009] In order to achieve the above object, an embodiment of the present invention provides an alarm processing method for petrochemical equipment, the alarm processing method for petrochemical equipment comprising:

[0010] Receiving an alarm signal from a device, and determining an alarm type based on at least one of an occurrence frequency, a duration, an association with other alarm signals, and an association with an instrument of the alarm signal;

[0011] Responding to the alarm signal according to the alarm type;

[0012] The alarm types include: at least one of a first type of alarm in which the frequency of occurrence of an alarm signal exceeds a first threshold, a second type of alarm in which the duration of an alarm signal exceeds a second threshold, a third type of alarm in which an alarm signal is associated with other alarms, and a fourth type of alarm in which an alarm signal is associated with an instrument;

[0013] When the same alarm signal belongs to multiple alarm types, the response order to the third type of alarm takes precedence over other alarm types.

[0014] Optionally, responding to an alarm signal according to the alarm type includes:

[0015] If it is the first type of alarm, an alarm push dead zone including an upper limit value and a lower limit value is set for the alarm signal, so that the alarm signal starts to be pushed externally when it exceeds the upper limit value, and the external push is eliminated when it is lower than the lower limit value.

[0016] Optionally, the alarm processing method for petrochemical equipment further includes: setting an alarm push dead zone based on engineering experience, parameter characteristics and change rate;

[0017] The dead zone for alarm push is set according to engineering experience, parameter characteristics and change rate, including:

[0018] When the alarm parameter of the alarm signal is flow rate and / or liquid level, the alarm signal alarm push dead zone is set to not exceed 5% of the range;

[0019] When the alarm parameter of the alarm signal is pressure, the alarm signal's alarm push dead zone is set to not exceed 2% of the range;

[0020] When the alarm parameter of the alarm signal is temperature, the alarm signal's alarm push dead zone is set to not exceed 1% of the range;

[0021] Among them, the alarm parameter is an indicator to measure whether the device sends out an alarm signal. When the alarm parameter is greater than a preset alarm value, the device sends out an alarm signal, and when it is lower than the preset alarm value, the alarm signal is eliminated.

[0022] Optionally, responding to an alarm signal according to the alarm type includes:

[0023] If it is the first type of alarm, an alarm push delay device including a first delay time and a second delay time is set for the alarm signal, so that the alarm signal starts to be pushed externally when it appears for more than the first delay time, and the external push is stopped when the alarm signal stops for more than the second delay time.

[0024] Optionally, the alarm processing method for petrochemical equipment further includes: setting an alarm push delayer including a first delay time and a second delay time according to engineering experience, parameter characteristics and change rate;

[0025] The alarm push delay device including the first delay time and the second delay time is set according to engineering experience, parameter characteristics and change rate, including:

[0026] When the alarm parameter of the alarm signal is flow rate and / or pressure, the first delay time and the second delay time of the alarm signal are set to 0-15 seconds respectively;

[0027] When the alarm parameter of the alarm signal is liquid level and / or temperature, the first delay time of the alarm signal is set to 0-30 seconds and the second delay time is set to 30-60 seconds.

[0028] Optionally, responding to an alarm signal according to the alarm type includes:

[0029] If it is a second type of alarm, determine whether the alarm signal is caused by equipment operating conditions / process conditions or equipment failure;

[0030] When the alarm signal is an alarm caused by equipment working condition / process condition, adjusting the preset alarm value of the alarm signal so that the preset alarm value is adapted to the equipment working condition / process condition;

[0031] When the alarm signal is caused by equipment failure, the alarm shelving mode is adopted to shield the alarm signal to eliminate external push.

[0032] Optionally, responding to an alarm signal according to the alarm type includes:

[0033] If it is a third type of alarm, the alarm signal and other alarm signals associated with it are combined into a common alarm signal, or

[0034] The alarm signal and one of the other alarm signals associated therewith are retained.

[0035] Optionally, responding to an alarm signal according to the alarm type includes:

[0036] If it is the fourth type of alarm, determine whether the alarm signal is caused by instrument failure or unreasonable instrument range setting;

[0037] When the alarm signal is caused by an instrument failure, repair the instrument failure;

[0038] When the alarm signal is an alarm caused by unreasonable instrument range setting, the instrument range is modified.

[0039] Optionally, the petrochemical equipment alarm processing method further includes:

[0040] Assess the risks in the production process based on process / equipment / environmental protection requirements and product quality requirements;

[0041] The alarm parameters of each alarm signal are determined based on at least one of the risks existing in the production process, the accuracy of the measurement of each parameter, the probability of parameter misreporting, and the degree of association between each parameter and the production accident.

[0042] Optionally, the petrochemical equipment alarm processing method further includes:

[0043] The alarm priority of the alarm signal is set according to at least one of the process card, the interlock setting and the Hazop analysis report.

[0044] Optionally, setting the alarm priority of the alarm signal according to at least one of the process card, interlock setting and Hazop analysis report includes:

[0045] When the alarm parameters of the alarm signal are enterprise-level process card parameters, the priority of the alarm signal is set to emergency alarm;

[0046] When the alarm parameter of the alarm signal is a workshop-level process card parameter, set the priority of the alarm signal to important alarm;

[0047] When the alarm parameter of the alarm signal is an interlock setting parameter, the priority of the alarm signal is set to emergency alarm;

[0048] When the alarm parameters of the alarm signal are emergency parameters obtained through Hazop analysis, the priority of the alarm signal is set to emergency alarm;

[0049] When the alarm parameters of the alarm signal are important parameters obtained through Hazop analysis, the priority of the alarm signal is set to important alarm.

[0050] Optionally, the petrochemical equipment alarm processing method further includes:

[0051] Acquire an evaluation parameter for indicating the alarm performance of the enterprise / device, wherein the evaluation parameter includes at least one of an average number of alarms per hour, a timely alarm confirmation rate, and a timely alarm handling rate;

[0052] Determining, according to a parameter interval in which each evaluation parameter in the evaluation parameters is located, an alarm score value corresponding to each evaluation parameter obtained, wherein different parameter intervals of each evaluation parameter are pre-associated with different alarm score values;

[0053] According to the alarm score value of the evaluation parameter, an alarm performance index for indicating the comprehensive alarm performance of the enterprise / device is determined.

[0054] Optionally, the hourly average alarm number includes the hourly average alarm number of the enterprise and / or the hourly average alarm number of the device;

[0055] The enterprise hourly average alarm number is the ratio of the product of the total number of enterprise alarms, hours and the total number of devices;

[0056] The average number of alarms during the device operation is the ratio of the total number of device alarms to the number of hours.

[0057] Optionally, the alarm confirmation timeliness rate includes an enterprise alarm confirmation timeliness rate and / or a device alarm confirmation timeliness rate;

[0058] The enterprise alarm confirmation timeliness rate is the ratio of the number of alarms confirmed by the enterprise within the first preset time to the total number of enterprise alarms;

[0059] The device alarm confirmation timeliness rate is the ratio of the number of alarms of the device alarm confirmation duration within the first preset time to the total number of device alarms.

[0060] Optionally, the alarm handling timeliness rate includes the enterprise alarm handling timeliness rate and / or the device alarm handling timeliness rate;

[0061] The enterprise alarm handling timeliness rate is the ratio of the number of alarms that return to normal within the second preset time to the total number of enterprise alarms;

[0062] The device alarm handling timeliness rate is the ratio of the number of alarms that return to normal within the second preset time after the device alarm handling time to the total number of device alarms.

[0063] Optionally, determining an alarm performance index for indicating the comprehensive alarm performance of an enterprise / device according to the alarm score value of the evaluation parameter includes:

[0064] The product of the alarm score value of each evaluation parameter and the weight representing the importance of the evaluation parameter is added together to obtain an alarm performance index indicating the comprehensive alarm performance of the enterprise / device.

[0065] Correspondingly, an embodiment of the present invention further provides an alarm processing system for petrochemical equipment, wherein the alarm processing system for petrochemical equipment is used to execute the alarm processing method for petrochemical equipment.

[0066] Correspondingly, an embodiment of the present invention further provides a machine-readable storage medium, on which instructions are stored, and the instructions are used to enable a machine to execute the alarm processing method for petrochemical equipment.

[0067] Correspondingly, an embodiment of the present invention further provides a processor for running a program, wherein the program is used to execute the alarm processing method of the petrochemical equipment when being run.

[0068] The embodiment of the present invention determines the alarm type based on the alarm signal's frequency of occurrence, duration, correlation with other alarm signals, and correlation with the instrument, and responds to the alarm signal according to the alarm type, which can effectively reduce nuisance alarm problems and improve alarm quality.

[0069] 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

[0070] 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:

[0071] Figure 1 It is a flow chart of an alarm processing method for petrochemical equipment provided by an embodiment of the present invention;

[0072] Figure 2 is a flow chart of a response to a first type of alarm provided by an embodiment of the present invention;

[0073] Figure 3 is a flow chart of a response to a first type of alarm provided by another embodiment of the present invention;

[0074] Figure 4 This is a schematic diagram of an alarm log provided by an embodiment of the present invention;

[0075] Figure 5 is a flow chart of a method for generating an alarm log provided by an embodiment of the present invention;

[0076] Figure 6 It is a structural diagram of an alarm processing system for petrochemical equipment provided by an embodiment of the present invention;

[0077] Figure 7 This is a schematic diagram of externally pushing an alarm signal provided by an embodiment of the present invention;

[0078] Figure 8 is a flow chart of an alarm processing method for petrochemical equipment provided by another embodiment of the present invention;

[0079] Fig. 9 is a schematic diagram of the distribution of alarm settings provided by an embodiment of the present invention;

[0080] Fig.10 It is a schematic diagram of analyzing the alarm setting problem provided by an embodiment of the present invention;

[0081] Fig.11 is a schematic diagram of the distribution of alarm priorities provided by an embodiment of the present invention;

[0082] Fig.12 is a schematic diagram of alarm performance evaluation provided by an embodiment of the present invention;

[0083] Fig.13 It is a schematic diagram of the alarm optimization effect provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0084] 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.

[0085] Embodiment 1

[0086] Figure 1 The present invention provides a flowchart of an alarm processing method for petrochemical equipment.

[0087] like Figure 1 As shown, the alarm processing method of the petrochemical equipment includes:

[0088] S110: receiving an alarm signal of a device, and determining an alarm type based on at least one of an occurrence frequency, a duration, an association relationship with other alarm signals, and an association relationship with an instrument of the alarm signal;

[0089] S120: responding to the alarm signal according to the alarm type; wherein the alarm type includes: at least one of a first type alarm in which the alarm signal occurrence frequency exceeds a first threshold, a second type alarm in which the alarm signal duration exceeds a second threshold, a third type alarm in which the alarm signal is associated with other alarms, and a fourth type alarm in which the alarm signal is associated with an instrument;

[0090] S130: When the same alarm signal belongs to multiple alarm types, the response sequence to the third type of alarm takes precedence over the other alarm types.

[0091] The following describes the response methods for alarm signals of each alarm type:

[0092] 1) If it is the first type of alarm, a dead zone for alarm push including an upper limit value and a lower limit value can be set for the alarm signal from a spatial dimension, so that the alarm signal starts to be pushed externally when it exceeds the upper limit value, and the external push is eliminated when it is lower than the lower limit value.

[0093] Among them, the alarm push dead zone can be set according to engineering experience, parameter characteristics and change rate; optionally, when the alarm parameter of the alarm signal is flow and / or liquid level, the alarm push dead zone of the alarm signal is set to not exceed 5% of the range; when the alarm parameter of the alarm signal is pressure, the alarm push dead zone of the alarm signal is set to not exceed 2% of the range; when the alarm parameter of the alarm signal is temperature, the alarm push dead zone of the alarm signal is set to not exceed 1% of the range;

[0094] The alarm parameter is an indicator to measure whether the device sends out an alarm signal. When the alarm parameter is greater than a preset alarm value, the device sends out an alarm signal, and when it is lower than the preset alarm value, the alarm signal is eliminated.

[0095] Furthermore, if it is a first type of alarm, an alarm push delay device including a first delay time and a second delay time can be set for the alarm signal from a time dimension, so that the alarm signal starts to be pushed externally when it appears for more than the first delay time, and the external push is eliminated when the alarm signal stops for more than the second delay time.

[0096] Among them, an alarm push delay device including a first delay time and a second delay time can be set according to engineering experience, parameter characteristics and change rate; optionally, when the alarm parameters of the alarm signal are flow and / or pressure, the first delay time and the second delay time of the alarm signal are set to 0-15 seconds respectively; when the alarm parameters of the alarm signal are liquid level and / or temperature, the first delay time of the alarm signal is set to 0-30 seconds and the second delay time is set to 30-60 seconds.

[0097] For example, Figure 2 As shown in the figure, when the device has a first type of alarm, the alarm signal will not be pushed to the operator immediately, but the positive delay timer will be started. When the first delay time (positive delay time) is exceeded, the alarm signal will be pushed to the outside (or it will be pushed to the operator only after more than n consecutive alarm signals appear), otherwise no alarm will be issued. Figure 3 As shown, when the alarm signal is eliminated, the external push will not be eliminated immediately, but the negative delay device will be started. When the alarm signal stops exceeding the second delay time (negative delay time), the external push will be eliminated, thereby reducing repeated alarms of the first type.

[0098] Furthermore, it is also possible to optimize from both the spatial and temporal dimensions: process value filtering is used in the DCS system, that is, filtering space is added to the alarm limit, and filtering time is set at the same time. Taking high alarm as an example, when the alarm trigger condition is reached and the alarm signal appears, it is not immediately pushed to the outside, but enters the filtering interval. When the duration of the alarm signal in the filtering interval is less than the filtering time, the alarm is filtered out and not pushed to the outside. When the duration is greater than the filtering time or the process value exceeds the filtering interval, the alarm is triggered and pushed to the internal operator, thereby effectively reducing the repeated alarms generated / eliminated instantly.

[0099] Among them, according to engineering experience, parameter characteristics and change rate, the filter space setting range can be slightly higher than the alarm push dead zone setting range; the filter time setting range can be set according to the alarm parameters. Specifically, when the alarm parameters are flow and liquid level, it is set to less than 2s; when the alarm parameter is pressure, it is set to less than 1s; other types of alarm parameters can be set to less than 2s.

[0100] Furthermore, the control loop performance can be optimized, the control loop PID parameters can be evaluated, the controller with inappropriate control parameters causing alarm can be located, and the process fluctuations can be stabilized by optimizing the controller PID tuning.

[0101] 2) If it is a second type of alarm, determine whether the alarm signal is an alarm caused by the equipment operating condition / process condition or an alarm caused by an equipment failure; when the alarm signal is an alarm caused by the equipment operating condition / process condition, adjust the preset alarm value of the alarm signal so that the preset alarm value is adapted to the equipment operating condition / process condition; when the alarm signal is an alarm caused by an equipment failure, use an alarm shelving method to shield the alarm signal to eliminate external push.

[0102] For example, when the second type of alarm signal persists for more than 24 hours or remains uneliminated for a long time, the alarm setting conditions and process operating conditions may be reviewed, and new preset alarm values ​​may be determined using logical calculations, correlation analysis, etc.; when the alarm signal is caused by equipment failure, the alarm shelving method may be used to shield the alarm signal to eliminate external push; it may also be determined whether to adjust the alarm level or cancel the alarm based on the nature of the alarm.

[0103] 3) If it is a third type of alarm, the alarm signal and other alarm signals associated with it are combined into a common alarm signal, or one of the alarm signal and other alarm signals associated with it is retained.

[0104] For example, when the same abnormal operating condition generates multiple alarms for different process parameters (third type alarms), the logical association can be strengthened, important alarm settings can be retained, and the associated unnecessary alarm parameters can be stopped or the related control instrument configurations can be eliminated; the alarm rationalization analysis can also be re-performed and merged into one or several common alarms.

[0105] 4) If it is the fourth type of alarm, determine whether the alarm signal is caused by an instrument failure or an unreasonable instrument range setting; when the alarm signal is caused by an instrument failure, repair the instrument failure; when the alarm signal is caused by an unreasonable instrument range setting, modify the instrument range.

[0106] On the one hand, too many process alarms are caused by the strong correlation between parameters. Abnormal conditions will spread from the alarm source to the associated area and trigger unnecessary alarms. On the other hand, the system has random disturbances or unreasonable parameter settings, which lead to frequent oscillations, interfering with the operator's monitoring and response to abnormal process condition alarms. Such alarms are called nuisance alarms. The first type of alarm, the second type of alarm, the third type of alarm, and the fourth type of alarm all belong to the category of nuisance alarms. Nuisance alarms usually do not mean that a fault has occurred, but too much nuisance information will lead to a decrease in the effectiveness of the alarm system, an increase in the operation of the DCS system, and the burial of urgent / important effective alarms. Generally speaking, no process alarm is deliberately designed to be a nuisance alarm, and all unnecessary alarms can be repaired. For different types of alarms, the embodiments of the present invention integrate the experience of different experts and field practices, and propose various adaptive optimization methods. Dead zones, delays, filtering and other methods are used to effectively eliminate invalid alarms, optimize DCS system settings, and improve alarm quality.

[0107] Embodiment 2

[0108] The alarm processing method for petrochemical equipment may further include a step of setting an alarm priority of an alarm signal, that is, setting the alarm priority of the alarm signal according to at least one of a process card, an interlock setting, and a Hazop analysis report.

[0109] Optionally, when the alarm parameter of the alarm signal is an enterprise-level process card parameter, the priority of the alarm signal is set to emergency alarm; when the alarm parameter of the alarm signal is a workshop-level process card parameter, the priority of the alarm signal is set to important alarm; when the alarm parameter of the alarm signal is an interlocking setting parameter, the priority of the alarm signal is set to emergency alarm; when the alarm parameter of the alarm signal is an emergency parameter obtained through Hazop analysis, the priority of the alarm signal is set to emergency alarm; when the alarm parameter of the alarm signal is an important parameter obtained through Hazop analysis, the priority of the alarm signal is set to important alarm.

[0110] It should be noted that the settings can be made at a high level, that is, one of the three requirements is urgent, that is, the final priority is urgent, and the alarm parameters not covered by the three requirements can be set independently by the enterprise.

[0111] Among them, the emergency alarms are events that may cause leakage, fire, explosion, personal injury, large-scale unplanned shutdown, mass environment, and serious economic losses, accounting for about 5%; the important alarms are safe operation parameters of key equipment of the device, which may cause unplanned shutdown of the device, affect the smooth operation of upstream and downstream devices and product quality, and other parameters, accounting for about 15%; the general alarms are parameters that may affect local abnormalities of the device except emergency and important alarms, accounting for about 80%.

[0112] Furthermore, the alarm parameters of the alarm signal can be determined in the following manner:

[0113] Evaluate the risks of the production process according to the process / equipment / environmental protection requirements and product quality requirements; determine the alarm parameters of each alarm signal based on at least one of the risks of the production process, the accuracy of the measurement of each parameter, the probability of parameter misreporting, and the degree of correlation between each parameter and the production accident.

[0114] In this specific embodiment, the alarm parameters set include but are not limited to: interlocked process and equipment parameters, process card parameters, environmental monitoring parameters, parameters affecting product quality, such as abnormal exceeding standard data in LIMS, parameters of upstream and downstream device operation, main parameters of raw materials entering the device, combustible gas and toxic gas detection alarms, public engineering parameters, parameters affecting equipment safety, and major hazard source parameters.

[0115] More preferably, the alarm processing method provided in the embodiment of the present invention further includes establishing an alarm log (such as Figure 4 ). The alarm log is the most basic basis for alarm confirmation and disposal. If the log data is incomplete or the limit values ​​are inconsistent, it will lead to problems in the subsequent performance evaluation and change disposal links, and even affect the effect of the entire alarm analysis. Therefore, the embodiment of the present invention first identifies the alarm parameters, divides the alarm priorities, and rationalizes the alarm settings to ensure that all alarms are set, and then establishes a standard, standardized, and accurate alarm log, thereby providing a guarantee for high-quality alarms. Specifically, various basic materials related to the alarm are collected to sort out the alarm settings in detail, analyze whether the alarm settings are compliant based on the risk level, and finally give DCS setting rectification suggestions. The process of issuing an alarm log is as follows: Figure 5 Through parameter rationalization, it is possible to effectively evaluate whether the actual alarm value of the DCS system is consistent with the alarm value known by the enterprise, prioritize the parameters of the set alarm according to the severity of the consequences of the alarm event, and evaluate whether there are any abnormalities in the alarm parameter limit.

[0116] The embodiment of the present invention sets reasonable alarm parameters, divides alarm priorities, and then establishes a standard, normative, and accurate alarm ledger, thereby achieving effective management of process alarms.

[0117] Embodiment 3

[0118] The alarm processing method for petrochemical equipment may further include a step of evaluating the alarm performance according to the alarm performance index, including:

[0119] Step 1: obtaining evaluation parameters for indicating the alarm performance of an enterprise / device, wherein the evaluation parameters include at least one of the average number of alarms per hour, the alarm confirmation timeliness rate, and the alarm handling timeliness rate;

[0120] Step 2: determining the alarm score value corresponding to each evaluation parameter acquired according to the parameter interval of each evaluation parameter, wherein different parameter intervals of each evaluation parameter are pre-associated with different alarm score values;

[0121] For example, different parameter intervals of each evaluation parameter are pre-associated with different alarm score values, as shown in Table 1:

[0122] Table 1

[0123]

[0124]

[0125] Step 3: Based on the alarm score value of the evaluation parameter, determine the alarm performance index used to indicate the comprehensive alarm performance of the enterprise / device. Optionally, add the product of the alarm score value of each evaluation parameter and the weight representing the importance of the evaluation parameter to obtain the alarm performance index used to indicate the comprehensive alarm performance of the enterprise / device.

[0126] For example, the alarm performance index = λ 1 * Average alarm score + λ 2 *Alarm confirmation timeliness score + λ 3 * Timely alarm handling rate, where λ1, λ2, and λ3 correspond to the weights of each evaluation parameter, λ 1 +λ 2 +λ 3 =1.

[0127] The hourly average alarm number includes the hourly average alarm number of the enterprise and / or the hourly average alarm number of the device, which is used to evaluate the number of process alarms per hour of each device DCS system and the frequency of alarms of each device. The hourly average alarm number of the enterprise is the ratio of the product of the total number of enterprise alarms and hours to the total number of devices; the hourly average alarm number of the device is the ratio of the total number of device alarms and hours, and the calculation formula is as follows, 24×statistical days is the number of hours within the statistical time range:

[0128]

[0129]

[0130] The alarm confirmation timeliness rate includes the enterprise alarm confirmation timeliness rate and / or the device alarm confirmation timeliness rate, which is used to evaluate the alarm confirmation of the operator. The enterprise alarm confirmation timeliness rate is the ratio of the number of alarms of the enterprise alarm confirmation time within the first preset time to the total number of enterprise alarms; the device alarm confirmation timeliness rate is the ratio of the number of alarms of the device alarm confirmation time within the first preset time to the total number of device alarms. The calculation formula is as follows (taking the first preset time of 30 seconds as an example):

[0131]

[0132]

[0133] The alarm handling timeliness rate includes the enterprise alarm handling timeliness rate and / or the device alarm handling timeliness rate, which is used to evaluate the operator's alarm handling timeliness. The enterprise alarm handling timeliness rate is the ratio of the number of alarms that have returned to normal within the second preset time to the total number of enterprise alarms; the device alarm handling timeliness rate is the ratio of the number of alarms that have returned to normal within the second preset time to the total number of device alarms. The calculation formula is as follows (taking the second preset time of 30 seconds as an example):

[0134]

[0135]

[0136] The causes of production process alarms in petrochemical enterprises are complex. From a data perspective, there are many statistical dimensions that can support alarm analysis, such as alarm duration, number of times, and trends. However, how to truly reflect the company's alarm management level through various indicators has always been a difficult problem. If the company does not generate alarms or generates very few alarms, it cannot be said that the company's alarm management is in place. Traditional alarm performance evaluation methods are mainly qualitative, but there are often too many evaluation indicators and they are not focused enough. There are cross-indicators, which cause great trouble for equipment personnel to analyze the causes of alarms. At the same time, it is difficult to provide quantitative evaluation standards to provide a basis for the evaluation of enterprise process alarms.

[0137] Therefore, based on the comprehensive analysis of process alarms, the embodiment of the present invention studies two-level alarm key performance indicators, wherein the first-level indicator (alarm performance index) is used to comprehensively measure the enterprise's alarm management and disposal level, and the second-level indicators (average number of alarms per hour, alarm confirmation timeliness rate and alarm disposal timeliness rate) conduct targeted analysis of alarms from the perspective of frequent alarms, continuous alarms and flooding alarms, thereby achieving an effective transition of alarm performance indicators from a single qualitative evaluation to a combination of qualitative and quantitative evaluations, laying the foundation for statistical assessment within the enterprise and dynamic comparison between enterprises.

[0138] Embodiment 4

[0139] An embodiment of the present invention further provides an alarm processing system for petrochemical equipment, wherein the alarm processing system for petrochemical equipment is used to execute the alarm processing method for petrochemical equipment.

[0140] Specifically, Figure 6 As shown, the alarm processing system of the petrochemical equipment also includes a basic data management module, an alarm data management module, an alarm KPI indicator module, a multi-dimensional alarm statistics module, an alarm analysis module, an alarm change management module, and an alarm push module;

[0141] The basic data management module is used to provide alarm record management and alarm setting evaluation services, realize effective monitoring of the record and real-time abnormal analysis of alarm limits, and mark the limits that do not meet the conditions in red.

[0142] The alarm data management module is used to provide alarm history record query and alarm elimination services, so that enterprise personnel can conduct targeted alarm analysis and eliminate unreasonable alarms.

[0143] The alarm KPI analysis module is used to provide process alarm performance scores, average number of alarms per hour, alarm confirmation timeliness rate, alarm handling timeliness rate and priority distribution viewing and query services, and supports the generation of alarm diagnosis optimization suggestions.

[0144] The multi-dimensional alarm statistics module is used to provide enterprise-level KPI statistics, operation department KPI statistics, device KPI statistics, team KPI statistics, parameter type KPI statistics and KPI time trend statistics services.

[0145] The alarm analysis module is used to provide alarm frequency analysis, alarm duration analysis, alarm response analysis, alarm flood analysis, alarm type analysis and alarm priority analysis viewing and query services, and supports risk classification management and control of alarms of different priorities.

[0146] The alarm change management module is used to receive the alarm signal of the equipment, and judge the alarm type based on at least one of the occurrence frequency, duration, correlation with other alarm signals and correlation with the instrument of the alarm signal; respond to the alarm signal according to the alarm type; wherein the alarm type includes: at least one of the first type of alarm in which the occurrence frequency of the alarm signal exceeds a first threshold, the second type of alarm in which the duration of the alarm signal exceeds a second threshold, the third type of alarm in which the alarm signal is correlated with other alarms, and the fourth type of alarm in which the alarm signal is correlated with the instrument;

[0147] The alarm change management module is also used to provide initiation and approval services for alarm activation and deactivation, alarm limit changes and alarm attribute changes, and supports the division of different approval processes according to user roles.

[0148] The alarm push module, such as Figure 7 As shown, it is used to provide alarm timeout push and alarm overlimit push services, support customized alarm push services, and push to different personnel according to different parameters of different devices.

[0149] The embodiment of the present invention provides all-round visualization services for alarm monitoring by establishing basic data management, alarm data management, alarm KPI indicators, multi-dimensional alarm statistics, alarm analysis, alarm change management, and alarm push modules, effectively strengthening the informatization and intelligent construction of petrochemical enterprise operation management, reducing the alarm rate, alleviating the labor intensity of operators, and further ensuring the safe and stable operation of the equipment.

[0150] Accordingly, an embodiment of the present invention further provides a machine-readable storage medium, on which instructions are stored, and the instructions are used to enable a machine to execute the alarm processing method for petrochemical equipment. Accordingly, an embodiment of the present invention further provides a processor for running a program, wherein the program is used to execute the alarm processing method for petrochemical equipment when it is run.

[0151] The embodiment of the present invention proposes an all-round integrated management and control method to address the problems of excessive alarms and lack of classification in petrochemical enterprises. By revising the alarm management system, rationalizing alarm setting parameters, designing key performance indicators of alarm performance, developing an intelligent alarm management system, establishing a change approval mechanism, and formulating alarm optimization and elimination strategies, effective management of process alarms is achieved.

[0152] Furthermore, the embodiments of the present invention can effectively standardize process alarm management, provide practical and scientific optimization suggestions for different nuisance alarms, significantly reduce invalid nuisance alarms of the device, enhance the risk monitoring and exception handling capabilities of enterprise personnel, and further improve the safe and stable operation level of the device.

[0153] Furthermore, the embodiment of the present invention is based on the full-cycle risk management and the original alarm information of the DCS system to establish a real-time collection, monitoring, evaluation, change, optimization and push mechanism to achieve effective unification of data flow, system flow and management flow.

[0154] Embodiment 5

[0155] The petrochemical equipment alarm processing method provided by the embodiment of the present invention may also include the following steps: Figure 8 As shown:

[0156] Collect and parse alarm data; optionally, read alarm and operation records and parameter real-time operation data from the OPC A&E interface and OPC DA interface of the device OPC server, and aggregate them to form an alarm history record master database to achieve unified storage of enterprise alarm-related data and provide a data basis for subsequent alarm analysis. According to the alarm data and communication protocols of DCS systems of different types and manufacturers, parse and form the standardized alarm record information required by the system, identify the alarm start time, end time, duration and other signs according to the time sequence, parse the bit number description, unit, old value, new value and other process information, search for the same parameter at one time and merge them into one alarm data through the program. The final standardized information includes but is not limited to the bit number, description, unit, alarm status, alarm priority, alarm start time, alarm confirmation time, alarm end time, etc.

[0157] Evaluate and improve the alarm management system; optionally, collect enterprise alarm-related information, evaluate the company's alarm status and management status, mainly including alarm parameter settings, average number of alarms, and alarm system construction and implementation, identify problems with current alarm management, prepare a status assessment report, establish / revise the enterprise alarm management system based on the management status and the latest domestic and international requirements, and clarify the top-level design, responsible departments and division of responsibilities for each process link.

[0158] Rationalize alarm settings; optionally, classify alarms according to process alarms, equipment alarms, instrument alarms, and safety alarms, and establish an alarm classification ledger. According to the three principles of rationality, uniqueness, and necessity, with the "Reference Template for Alarm Parameter Settings of Refining Units" as a reference, analyze and organize the setting information such as alarm points, alarm locations, and alarm limits to reduce unnecessary alarm settings. At the same time, by analyzing the risks and causes of key process operation alarms, assess the severity of alarm consequences and the time urgency of disposal, and realize the division of alarm priorities. Finally, based on the rationalization automatic analysis tool, find the problems with the alarm limits, and give suggestions for setting rectification that meet the requirements, form a standardized alarm ledger, and import it into the management system.

[0159] Build an alarm management system; optionally, deploy an alarm database server and an alarm application server in the enterprise, build and publish an online alarm management system, and enable users to access the system in the office network. Based on the original records of the alarm master database, read and analyze all alarm-related data to achieve 7 core functions. In addition, according to the enterprise organizational structure, establish system roles, configure users, and enable personnel permissions.

[0160] Establish an alarm push mechanism; optionally, with the alarm management system as the support, establish / revise the company's alarm push management regulations, sort out the parameters that need to be monitored, push methods, push rules, push personnel, etc., build an alarm classification push rule library, monitor the push trigger status of each parameter in real time, transmit the alarm push events that meet the conditions to the enterprise alarm information platform, and send them to relevant production management personnel via mobile phone text messages, WeChat and email, so that they can be the first to understand the production abnormalities of the device.

[0161] Evaluate alarm performance; optionally, with the support of the alarm management system, regularly (daily / weekly / monthly) conduct multi-dimensional performance evaluations on the enterprise / device / operation department / work team based on the average number of alarms, timely confirmation rate, alarm duration, alarm flooding, disposal status, etc., to obtain the performance level of the alarm system, realize online real-time monitoring and fault analysis of process alarms in the production process, and reflect the alarm level of the device and the workload of the operator.

[0162] Alarm optimization and change: Optionally, based on the alarm optimization suggestions given by the alarm management system, operators, production process personnel, DCS engineers, instrument engineers and safety engineers are organized to participate in the alarm optimization meeting, evaluate the TOP-N alarms, repeated alarms, frequent alarms, etc., and formulate implementation opinions for improvement. At the same time, for the alarm settings that need to be adjusted, the alarm parameters that are not involved in the assessment, the invalid alarm records, etc., the relevant change processes are initiated and reviewed in the management system in a timely manner to form a closed management loop.

[0163] The technical effect of the embodiment of the present invention is explained by taking the No. 2 catalytic cracking unit of a large petrochemical enterprise as an example.

[0164] Evaluation of parameter alarm settings; read the alarm information data of the 2# catalytic cracking unit through the OPC client data acquisition program, collected and sorted out 736 measurement positions of the 2# catalytic cracking unit, and analyzed through the alarm management system, it was found that 583 key parameters had alarm values ​​set, accounting for 79%. Among the 583 set alarms, there were 263 DCS high-limit alarms, 540 DCS high-limit alarms, 455 DCS low-limit alarms, and 220 DCS low-low-limit alarms, which met the setting requirements. The specific settings are as follows: Fig. 9 However, the high limit and high high limit or low limit and low low limit account for about 50%. In this type of alarm setting, it is found that there are 3 identical alarm limits and 26 similar alarm limits, which do not meet the setting requirements. The alarm limit interval should be enlarged. The setting problems are as follows: Fig.10 shown.

[0165] Alarm priority setting: Alarm priorities are divided according to the importance of parameters. At the same time, in order to meet the process conditions of the device, with the consent of the company's responsible leaders, the alarm priority division ratio required in the alarm management system (5% for emergency, 15% for important, and 80% for general) is adjusted, and the applicability is set to 5% for emergency alarms, 27% for important alarms, and 68% for general alarms, increasing the proportion of important alarms. The specific priority distribution is as follows: Fig.11 As shown, it meets the priority management requirements.

[0166] Alarm performance evaluation: establish an alarm management system to realize all management and monitoring functions, and grasp the performance of device alarms in real time. Through alarm performance analysis, according to enterprise needs, custom selection of average alarm number, peak alarm number, TOP10 high-frequency alarms, resident alarm number, alarm level, etc. generates alarm evaluation reports for monthly assessment. The evaluation screen is as follows: Fig.12 shown.

[0167] Alarm optimization: Through the performance evaluation results, the parameters with the top 10 alarms were analyzed, and it was found that a large number of repeated alarms or high-frequency alarms occurred in some parameters. Optimization suggestions were given through the management system. For example, it was found through statistics that the original alarm limit setting of the 8FIQ234 parameter was inappropriate due to the operating conditions. The process personnel adjusted the relevant parameters in time to eliminate such invalid alarms. After 3 months of continuous optimization, the alarm frequency of the 2# catalytic unit has stabilized and the alarm number has dropped significantly, meeting the requirements of the alarm system. The optimization effect is as follows: Fig.13 shown.

[0168] By implementing the petrochemical enterprise production process alarm comprehensive management and control technology on the 2# catalytic cracking unit, the alarm management system was improved, the alarm settings were rationalized, the unit alarm performance was evaluated in real time, and targeted alarm elimination and optimization were carried out. The alarm performance has been significantly improved. The average hourly alarm number of the unit's full-caliber DCS parameters has now dropped to 6 times / h, a decrease rate of 75%. More than 40% of various invalid alarms have been eliminated, effectively improving the stable operation level of the unit.

[0169] 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.

[0170] 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.

[0171] 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.

[0172] 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 A step that specifies a function in one or more boxes.

[0173] In a typical configuration, a computing device includes one or more processors (CPU), input / output interfaces, network interfaces, and memory.

[0174] 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.

[0175] 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.

[0176] 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.

[0177] 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 petrochemical equipment alarm processing method, characterized in that: The alarm processing method of the petrochemical equipment comprises: Receiving an alarm signal from a device, and determining an alarm type based on at least one of an occurrence frequency, a duration, an association with other alarm signals, and an association with an instrument of the alarm signal; Respond to the alarm signal according to the alarm type; wherein the alarm type includes: at least one of a first type of alarm in which the frequency of occurrence of the alarm signal exceeds a first threshold, a second type of alarm in which the duration of the alarm signal exceeds a second threshold, a third type of alarm in which the alarm signal is associated with other alarms, and a fourth type of alarm in which the alarm signal is associated with an instrument; When the same alarm signal belongs to multiple alarm types, the response order to the third type of alarm takes precedence over other alarm types.

2. The alarm processing method for petrochemical equipment according to claim 1, characterized in that: The step of responding to the alarm signal according to the alarm type includes: If it is the first type of alarm, an alarm push dead zone including an upper limit value and a lower limit value is set for the alarm signal, so that the alarm signal starts to be pushed externally when it exceeds the upper limit value, and the external push is eliminated when it is lower than the lower limit value.

3. The alarm processing method for petrochemical equipment according to claim 2, characterized in that: The petrochemical equipment alarm processing method further includes: setting an alarm push dead zone based on engineering experience, parameter characteristics and change rate; The dead zone for alarm push is set according to engineering experience, parameter characteristics and change rate, including: When the alarm parameter of the alarm signal is flow rate and / or liquid level, the alarm signal alarm push dead zone is set to not exceed 5% of the range; When the alarm parameter of the alarm signal is pressure, the alarm signal's alarm push dead zone is set to not exceed 2% of the range; When the alarm parameter of the alarm signal is temperature, the alarm signal's alarm push dead zone is set to not exceed 1% of the range; Among them, the alarm parameter is an indicator to measure whether the device sends out an alarm signal. When the alarm parameter is greater than a preset alarm value, the device sends out an alarm signal, and when it is lower than the preset alarm value, the alarm signal is eliminated.

4. The alarm processing method for petrochemical equipment according to claim 1, characterized in that: The step of responding to the alarm signal according to the alarm type includes: If it is the first type of alarm, an alarm push delay device including a first delay time and a second delay time is set for the alarm signal, so that the alarm signal starts to be pushed externally when it appears for more than the first delay time, and the external push is stopped when the alarm signal stops for more than the second delay time.

5. The alarm processing method for petrochemical equipment according to claim 4, characterized in that: The alarm processing method for petrochemical equipment further includes: setting an alarm push delayer including a first delay time and a second delay time according to engineering experience, parameter characteristics and change rate; The alarm push delay device including the first delay time and the second delay time is set according to engineering experience, parameter characteristics and change rate, including: When the alarm parameter of the alarm signal is flow rate and / or pressure, the first delay time and the second delay time of the alarm signal are set to 0-15 seconds respectively; When the alarm parameter of the alarm signal is liquid level and / or temperature, the first delay time of the alarm signal is set to 0-30 seconds and the second delay time is set to 30-60 seconds.

6. The alarm processing method for petrochemical equipment according to claim 1, characterized in that: The step of responding to the alarm signal according to the alarm type includes: If it is a second type of alarm, determine whether the alarm signal is caused by equipment operating conditions / process conditions or equipment failure; When the alarm signal is an alarm caused by equipment working condition / process condition, adjusting the preset alarm value of the alarm signal so that the preset alarm value is adapted to the equipment working condition / process condition; When the alarm signal is caused by equipment failure, the alarm shelving mode is adopted to shield the alarm signal to eliminate external push.

7. The alarm processing method for petrochemical equipment according to claim 1, characterized in that: The step of responding to the alarm signal according to the alarm type includes: If it is a third type of alarm, the alarm signal and other alarm signals associated with it are combined into a common alarm signal, or The alarm signal and one of the other alarm signals associated therewith are retained.

8. The alarm processing method for petrochemical equipment according to claim 1, characterized in that: The step of responding to the alarm signal according to the alarm type includes: If it is the fourth type of alarm, determine whether the alarm signal is caused by instrument failure or unreasonable instrument range setting; When the alarm signal is caused by an instrument failure, repair the instrument failure; When the alarm signal is an alarm caused by unreasonable instrument range setting, the instrument range is modified.

9. The alarm processing method for petrochemical equipment according to any one of claims 1 to 8, characterized in that: The alarm processing method for petrochemical equipment also includes: Assess the risks in the production process based on process / equipment / environmental protection requirements and product quality requirements; The alarm parameters of each alarm signal are determined based on at least one of the risks existing in the production process, the accuracy of the measurement of each parameter, the probability of parameter misreporting, and the degree of association between each parameter and the production accident.

10. The alarm processing method for petrochemical equipment according to any one of claims 1 to 8, characterized in that: The alarm processing method for petrochemical equipment also includes: The alarm priority of the alarm signal is set according to at least one of the process card, the interlock setting and the Hazop analysis report.

11. The petrochemical equipment alarm processing method according to claim 10, characterized in that: The step of setting the alarm priority of the alarm signal according to at least one of the process card, the interlock setting and the Hazop analysis report comprises: When the alarm parameters of the alarm signal are enterprise-level process card parameters, the priority of the alarm signal is set to emergency alarm; When the alarm parameter of the alarm signal is a workshop-level process card parameter, set the priority of the alarm signal to important alarm; When the alarm parameter of the alarm signal is an interlock setting parameter, the priority of the alarm signal is set to emergency alarm; When the alarm parameters of the alarm signal are emergency parameters obtained through Hazop analysis, the priority of the alarm signal is set to emergency alarm; When the alarm parameters of the alarm signal are important parameters obtained through Hazop analysis, the priority of the alarm signal is set to important alarm.

12. The alarm processing method for petrochemical equipment according to any one of claims 1 to 8, characterized in that: The alarm processing method for petrochemical equipment also includes: Acquire an evaluation parameter for indicating the alarm performance of the enterprise / device, wherein the evaluation parameter includes at least one of an average number of alarms per hour, a timely alarm confirmation rate, and a timely alarm handling rate; Determining, according to a parameter interval in which each evaluation parameter in the evaluation parameters is located, an alarm score value corresponding to each evaluation parameter obtained, wherein different parameter intervals of each evaluation parameter are pre-associated with different alarm score values; According to the alarm score value of the evaluation parameter, an alarm performance index for indicating the comprehensive alarm performance of the enterprise / device is determined.

13. The petrochemical equipment alarm processing method according to claim 12, characterized in that: The hourly average alarm number includes the hourly average alarm number of the enterprise and / or the hourly average alarm number of the device; The enterprise hourly average alarm number is the ratio of the product of the total number of enterprise alarms, hours and the total number of devices; The average number of alarms during the device operation is the ratio of the total number of device alarms to the number of hours.

14. The alarm processing method for petrochemical equipment according to claim 12, characterized in that: The alarm confirmation timeliness rate includes the enterprise alarm confirmation timeliness rate and / or the device alarm confirmation timeliness rate; The enterprise alarm confirmation timeliness rate is the ratio of the number of alarms confirmed by the enterprise within the first preset time to the total number of enterprise alarms; The device alarm confirmation timeliness rate is the ratio of the number of alarms of the device alarm confirmation duration within the first preset time to the total number of device alarms.

15. The alarm processing method for petrochemical equipment according to claim 12, characterized in that: The alarm handling timeliness rate includes the enterprise alarm handling timeliness rate and / or the device alarm handling timeliness rate; The enterprise alarm handling timeliness rate is the ratio of the number of alarms that return to normal within the second preset time to the total number of enterprise alarms; The device alarm handling timeliness rate is the ratio of the number of alarms that return to normal within the second preset time after the device alarm handling time to the total number of device alarms.

16. The alarm processing method for petrochemical equipment according to claim 12, characterized in that: Determining the alarm performance index for indicating the comprehensive alarm performance of the enterprise / device according to the alarm score value of the evaluation parameter includes: The product of the alarm score value of each evaluation parameter and the weight representing the importance of the evaluation parameter is added together to obtain an alarm performance index indicating the comprehensive alarm performance of the enterprise / device.

17. An alarm processing system for petrochemical equipment, characterized in that: The alarm processing system for petrochemical equipment is used to execute the alarm processing method for petrochemical equipment described in any one of claims 1-16.

18. A machine-readable storage medium having instructions stored thereon, the instructions being used to enable a machine to execute the alarm processing method for petrochemical equipment as described in any one of claims 1-16.

19. A processor, characterized in that: Used to run a program, wherein the program, when run, is used to execute the alarm processing method for petrochemical equipment described in any one of claims 1-16.

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