A method and device for early warning of major hazard sources of hazardous chemicals

Abstract

The present invention provides a method and device for early warning of major hazardous sources of hazardous chemicals. This method constructs a risk value calculation model that couples the major hazardous source level of the hazardous chemical, the process and gas sensor alarm level, and the process and gas sensor alarm duration. By coupling the alarm data from multiple sensors to calculate the risk value, the risk situation can be comprehensively evaluated from multiple dimensions, improving the accuracy of risk identification. The present invention incorporates a sensor alarm duration coefficient into the risk value calculation model and couples the alarm data from multiple sensors. When a sensor alarm continues for a certain period of time or when multiple sensors alarm simultaneously, a transition in the warning level can be achieved, reducing false alarms and misreporting.

Description

Technical Field

[0001] The present invention relates to the field of computer technology, and in particular to a method and device for early warning of risks of major hazardous sources of dangerous chemicals. Background Art

[0002] Currently, most risk warning solutions for chemical parks rely on sensor alarms. This involves setting alarm thresholds for sensors, and triggering an alarm signal when the sensor's measured value exceeds or falls below the threshold. However, this approach is prone to false alarms and misreporting. For example, if a gas wafts through the air but is not a leak, the sensor may register the discrepancy, resulting in a false alarm. Summary of the Invention

[0003] One or more embodiments of this specification describe a method and device for early warning of risks of major hazardous sources of hazardous chemicals, which can at least partially address the shortcomings of the existing technology.

[0004] In a first aspect, a method for early warning of major hazardous source risks of hazardous chemicals is provided, the method being applicable to a management and control system of a chemical park; the method comprising:

[0005] Obtain a list of major hazardous chemical sources and monitoring data for each major hazardous chemical source from the major hazardous chemical source database of the management and control system;

[0006] In response to the presence of alarm data in the monitoring data of any major hazardous source of hazardous chemicals, the major hazardous source of hazardous chemicals is designated as a target hazardous source; the alarm data includes process indicator alarm data and leakage alarm data;

[0007] Extracting hazardous chemical inventory data from the monitoring data of the target hazardous source, determining a grading index of the target hazardous source based on the hazardous chemical inventory data, and determining an inherent hazard correction coefficient of the target hazardous source based on the grading index;

[0008] Calculate the real-time warning coefficient of key parameters based on the process indicator alarm data and leakage alarm data of the target hazard source:

[0009] ;

[0010] in, represents the real-time warning coefficient of the key parameter, represents the weight coefficient, Indicates the type of sensor that has issued an alarm. Indicates the number of alarms that occur simultaneously The number of sensor types, Indicates the alarm occurred The first type of sensor The alarm level score of each sensor, Indicates the alarm occurred The first type of sensor The alarm duration coefficient of each sensor, and The value of is positively correlated with the alarm duration;

[0011] Based on the inherent hazard correction coefficient of the target hazard source and the real-time warning coefficient of key parameters, the risk value of the target hazard source is calculated:

[0012] ;

[0013] in, Indicates the inherent hazard correction factor of the target hazard source, Indicates the risk value of the target hazard source;

[0014] Based on the risk value of the target hazard source, the risk warning level of the target hazard source is determined, and corresponding alarm information is generated and sent to the management and control system.

[0015] As an optional implementation of the method of the first aspect, determining the inherent hazard correction coefficient of the target hazard source based on the grading index specifically includes:

[0016] Determining the major hazardous source level of hazardous chemicals of the target hazardous source based on the grading indicators;

[0017] According to a preset mapping table of major hazard source levels of hazardous chemicals and inherent hazard correction coefficients, the inherent hazard correction coefficient corresponding to the target hazard source is searched.

[0018] As an optional implementation manner of the method of the first aspect, determining the risk warning level of the target hazard source based on the risk value of the target hazard source specifically includes:

[0019] The risk value of the target hazard source is matched with a preset risk value interval of a risk warning level, and the risk warning level of the target hazard source is determined according to the matching result.

[0020] In a second aspect, a risk warning device for major hazardous sources of hazardous chemicals is provided, which is applicable to the management and control system of a chemical park; the device comprises:

[0021] a first data acquisition module configured to acquire a list of major hazardous sources of hazardous chemicals and monitoring data of each major hazardous source of hazardous chemicals from a major hazardous source database of hazardous chemicals in the management and control system;

[0022] A second data acquisition module is configured to, in response to the presence of alarm data in the monitoring data of any major hazardous source of hazardous chemicals, take the major hazardous source of hazardous chemicals as a target hazardous source; the alarm data includes process indicator alarm data and leakage alarm data;

[0023] a risk value calculation module configured to extract hazardous chemical inventory data from the monitoring data of the target hazardous source, determine a grading index of the target hazardous source based on the hazardous chemical inventory data of the target hazardous source, and determine an inherent hazard correction coefficient of the target hazardous source based on the grading index;

[0024] The risk value calculation module is further used to calculate the real-time warning coefficient of key parameters based on the process indicator alarm data and leakage alarm data of the target hazard source:

[0025] ;

[0026] in, represents the real-time warning coefficient of the key parameter, represents the weight coefficient, Indicates the type of sensor that has issued an alarm. Indicates the number of alarms that occur simultaneously The number of sensor types, Indicates the alarm occurred The first type of sensor The alarm level score of each sensor, Indicates the alarm occurred The first type of sensor The alarm duration coefficient of each sensor, and The value of is positively correlated with the alarm duration;

[0027] The risk value calculation module is further configured to calculate the risk value of the target hazard source based on the inherent hazard correction coefficient of the target hazard source and the real-time warning coefficient of key parameters:

[0028] ;

[0029] in, Indicates the inherent hazard correction factor of the target hazard source, Indicates the risk value of the target hazard source;

[0030] The alarm module is configured to determine the risk warning level of the target hazard source based on the risk value of the target hazard source, and generate corresponding alarm information to send to the management and control system.

[0031] As an optional implementation manner of the apparatus according to the second aspect, the risk value calculation module is specifically configured to:

[0032] Determining the major hazardous source level of hazardous chemicals of the target hazardous source based on the grading indicators;

[0033] According to a preset mapping table of major hazard source levels of hazardous chemicals and inherent hazard correction coefficients, the inherent hazard correction coefficient corresponding to the target hazard source is searched.

[0034] As an optional implementation manner of the apparatus according to the second aspect, the alarm module is specifically configured to:

[0035] The risk value of the target hazard source is matched with a preset risk value interval of a risk warning level, and the risk warning level of the target hazard source is determined according to the matching result.

[0036] In a third aspect, a computer-readable storage medium is provided, which stores a computer program. When the computer program runs on an electronic device, the electronic device executes the above-mentioned method for early warning of major hazardous sources of dangerous chemicals.

[0037] In a fourth aspect, an electronic device is provided, including:

[0038] at least one memory for storing a program;

[0039] At least one processor is used to execute the program stored in the memory. When the program stored in the memory is executed, the processor is used to execute the above-mentioned method for early warning of major hazard sources of hazardous chemicals.

[0040] Beneficial Effects: One or more embodiments of this specification provide a method and apparatus for early warning of major hazardous chemical hazard sources. This method constructs a risk value calculation model that couples the major hazardous chemical hazard source level, sensor alarm level, and sensor alarm duration to calculate the risk value. Compared to existing solutions that directly assess risk based on sensor alarm data, this method comprehensively evaluates risk from multiple dimensions, improving the accuracy of risk identification. In addition, the risk calculation model takes into account the duration of sensor alarms. Specifically, only when the sensor alarm continues will the risk value show an effective increase, thereby reducing false alarms and misreporting. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] In order to more clearly illustrate the embodiments of this specification or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of this specification. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0042] Figure 1 It is a flow chart of a method for early warning of major hazardous sources of dangerous chemicals involved in one or more embodiments of this specification.

[0043] Figure 2 It is a schematic representation of the mapping between the major hazard source levels of hazardous chemicals and the inherent hazard correction factors involved in one or more embodiments of this specification.

[0044] Figure 3 This is a schematic diagram of the corresponding relationship between an alarm duration level classification result and its corresponding alarm duration coefficient involved in one or more embodiments of this specification.

[0045] Figure 4 It is a schematic diagram of the risk warning level distribution results of the risk values ​​of a group of target hazardous sources involved in one or more embodiments of this specification.

[0046] Figure 5 This is a schematic diagram of the risk value interval and risk level ratio corresponding to a risk warning level involved in one or more embodiments of this specification.

[0047] Figure 6 It is a structural schematic diagram of a risk warning device for major hazardous sources of dangerous chemicals involved in one or more embodiments of this specification. DETAILED DESCRIPTION

[0048] First, it should be noted that the terms used in the embodiments of the present invention are for the purpose of describing specific embodiments only and are not intended to limit the present invention. As used in the embodiments of the present invention and the appended claims, the singular forms "a," "the," and "the" are intended to include the plural forms, unless the context clearly indicates otherwise.

[0049] In order to enable those skilled in the art to better understand the technical solutions in this specification, the technical solutions in the embodiments of this specification will be clearly and completely described below in conjunction with the drawings in the embodiments of this specification. Obviously, the described embodiments are only part of the embodiments of this specification, not all of the embodiments. Therefore, it should be recognized by those skilled in the art that various changes and modifications can be made to the embodiments described herein without departing from the scope and spirit of the present invention. Similarly, for the sake of clarity and conciseness, descriptions of well-known functions and structures are omitted in the following description.

[0050] It should be noted that in other embodiments, the steps of the corresponding method are not necessarily performed in the order shown and described in this specification. In some other embodiments, the method may include more or fewer steps than those described in this specification. In addition, a single step described in this specification may be broken down into multiple steps for description in other embodiments, and multiple steps described in this specification may be combined into a single step for description in other embodiments.

[0051] The following will further describe in detail the method and device for early warning of major hazardous sources of dangerous chemicals described in the embodiments of this specification in conjunction with the drawings and specific embodiments of the specification, but this detailed description does not constitute a limitation on the embodiments of this specification.

[0052] In some embodiments, a method for early warning of major hazardous sources of hazardous chemicals is provided, which is applicable to the management and control system of a chemical park. Figure 1 As shown, the method includes steps S100 to S110.

[0053] S100: Obtain a list of major hazardous sources of hazardous chemicals and monitoring data of each major hazardous source of hazardous chemicals from the major hazardous source database of hazardous chemicals in the management and control system.

[0054] The aforementioned major hazardous chemical hazard sources are pre-configured. They can be production facilities or specific areas, such as tank farms and warehouses. Each major hazardous chemical hazard source is equipped with a variety of sensors to obtain the aforementioned monitoring data. These sensors primarily include temperature sensors, pressure sensors, liquid level sensors, and toxic and hazardous gas leak sensors. These sensors are primarily divided into two parts. One part is used to collect hazardous chemical inventory data. For example, a liquid level sensor can collect stored hazardous chemical level data to obtain inventory data. The other part is used to generate alarms for hazardous conditions. These sensors only generate alarms when the collected values ​​fall below or exceed preset thresholds, and the alarm data is transmitted to the major hazardous chemical hazard source database. For example, a toxic gas leak sensor generates an alarm upon detecting that the toxic gas concentration exceeds a preset gas concentration threshold, and the alarm data is uploaded to the major hazardous chemical hazard source database in the management and control system. The alarm data primarily includes information such as the alarm start time and alarm end time.

[0055] Based on the above-mentioned various sensors, the above-mentioned monitoring data mainly include: the name of the major hazard source of hazardous chemicals, the code of the major hazard source of hazardous chemicals, the name of the sensor, the sensor code, the alarm data (only when the sensor alarms), and the inventory data of hazardous chemicals.

[0056] It should be noted that the above-mentioned major hazard sources of hazardous chemicals can be monitored and adaptively configured according to needs, and this embodiment does not impose any limitation on this.

[0057] It should be noted that the sensors configured for the above-mentioned major hazardous sources of hazardous chemicals, including the type and number of sensors, can also be adaptively set according to the characteristics of the major hazardous sources of hazardous chemicals, site characteristics and actual needs, and this embodiment does not impose any restrictions on this.

[0058] S102: In response to the presence of alarm data in the monitoring data of any major hazardous source of hazardous chemicals, the major hazardous source of hazardous chemicals is taken as a target hazardous source.

[0059] The aforementioned alarm data can be categorized by sensor type, primarily including process indicator alarm data and leak alarm data. Process indicator alarm data indicates when a process indicator during the processing of processing equipment exceeds or falls below a preset threshold. Leak alarm data indicates when a toxic or hazardous gas leak has occurred during the processing of processing equipment or in areas such as tank farms and warehouses.

[0060] S104: Extracting hazardous chemical inventory data from the monitoring data of the target hazardous source, determining the grading index of the target hazardous source based on the hazardous chemical inventory data, and determining the inherent hazard correction coefficient of the target hazardous source based on the grading index.

[0061] In this step, the classification indicators of the above-mentioned target hazard sources are obtained according to the "Classification Method for Major Hazard Sources of Hazardous Chemicals".

[0062] Specifically, the classification indicators of target hazard sources The calculation formula is:

[0063] ;

[0064] in, Indicates the correction factor for exposed personnel outside the target hazardous source factory area, Indicates the existence of the target hazard source Correction factors for hazardous chemicals, Indicates the existence of the target hazard source The actual amount of hazardous chemicals present, Indicates the existence of the target hazard source The critical amount of hazardous chemicals, , Indicates the total number of types of hazardous chemicals present in the target hazardous source.

[0065] After determining the grading index of the target hazard source, the level of the major hazardous source of hazardous chemicals of the target hazard source can be determined based on the grading index. Then, according to the pre-set mapping table of the major hazardous source level of hazardous chemicals and the inherent hazard correction coefficient, the inherent hazard correction coefficient corresponding to the target hazard source is found. , .

[0066] by Figure 2 Taking the mapping table of major hazardous source levels of hazardous chemicals and inherent hazard correction coefficients as an example, the major hazardous source level of hazardous chemicals of the target hazard source is determined based on the classification index. Among them, the correction coefficient of the first-level major hazardous source of hazardous chemicals is , correction factor for major hazard sources of secondary hazardous chemicals , correction factor for major hazard sources of Class III hazardous chemicals , correction factor for major hazard sources of Class IV hazardous chemicals .

[0067] It should be noted that the correspondence between the major hazard source level of hazardous chemicals and the inherent hazard correction coefficient can be set according to actual needs, and this embodiment does not impose any restrictions on this.

[0068] S106: Calculate the real-time warning coefficient of key parameters based on the process indicator alarm data and leakage alarm data of the target hazard source.

[0069] ;

[0070] in, Indicates the real-time warning coefficient of key parameters, represents the weight coefficient, Indicates the type of sensor that has issued an alarm. Indicates the number of alarms that occur simultaneously The number of sensor types, Indicates the alarm occurred The first type of sensor The alarm level score of each sensor, Indicates the alarm occurred The first type of sensor The alarm duration coefficient of each sensor, and The value of is positively correlated with the alarm duration, that is, the longer the alarm duration, The larger the value of .

[0071] Before using the above formula to calculate, the alarm duration level can be divided according to the alarm duration, and then the alarm level score and alarm duration coefficient can be determined according to the alarm duration level. Figure 3FIG. 1 shows a correspondence between an alarm duration level classification result and its corresponding alarm duration coefficient.

[0072] It should be noted that the alarm duration level, the alarm level score, and the alarm duration coefficient can all be adaptively set according to actual needs, and this embodiment does not impose any limitation on this.

[0073] Taking temperature sensors, pressure sensors, liquid level sensors, toxic gas leak sensors, and combustible gas leak sensors as examples, the calculation method for the real-time warning coefficient of key parameters is as follows:

[0074] ;

[0075] in, represents the weight coefficient of the temperature sensor, represents the weight coefficient of the pressure sensor, Represents the weight coefficient of the liquid level sensor, Indicates the weight coefficient of the toxic gas leakage sensor, Indicates the weight coefficient of the combustible gas leak sensor. Indicates the The alarm level score of each temperature sensor, Indicates the The alarm duration coefficient of each temperature sensor, Indicates the number of temperature sensors that are alarming simultaneously. Indicates the The alarm level score of each pressure sensor, Indicates the Alarm duration coefficient of each pressure sensor, Indicates the number of pressure sensors that are alarming simultaneously. Indicates the The alarm level score of each liquid level sensor, Indicates the The alarm duration coefficient of each level sensor, Indicates the number of liquid level sensors that are alarming at the same time. Indicates the The alarm level score of each toxic gas leak sensor, Indicates the The alarm duration coefficient of a toxic gas leak sensor, Indicates the number of toxic gas leak sensors that are alarming at the same time. Indicates the The alarm level score of each combustible gas leak sensor, Indicates the The alarm duration coefficient of each combustible gas leak sensor, Indicates the number of combustible gas leak sensors that are alarming at the same time.

[0076] S108: Calculate the risk value of the target hazard source based on the inherent hazard correction coefficient of the target hazard source and the real-time warning coefficient of key parameters.

[0077] The risk value calculation formula for the target hazard source is:

[0078] ;

[0079] in, Indicates the inherent hazard correction factor of the target hazard source, Indicates the risk value of the target hazard source.

[0080] S110: Based on the risk value of the target hazard source, determine the risk warning level of the target hazard source, and generate corresponding alarm information and send it to the management and control system.

[0081] In some embodiments, the risk value interval of the risk warning level can be divided in advance according to the risk value threshold. Match the risk value range with the preset risk warning level, and determine the risk warning level of the target hazard source based on the matching results.

[0082] like Figure 4 The following is the risk warning level distribution result of the risk value of a group of target hazardous sources. Figure 4 There are four levels of risk warning, namely red warning, orange warning, yellow warning and blue warning. The warning levels are red warning > orange warning > yellow warning > blue warning.

[0083] like Figure 5 is based on Figure 4 Constructed, Figure 5 The risk value range and risk level ratio corresponding to the risk warning level are shown. The risk level ratio refers to the ratio of risk warnings of this level to all risk warnings. Figure 4 The total number of all risk warnings is 32, then the risk level of the red risk warning accounts for 2 / 32, the risk level of the orange risk warning accounts for 6 / 32, the risk level of the yellow risk warning accounts for 10 / 32, and the risk level of the blue risk warning accounts for 14 / 32.

[0084] It should be noted that the risk warning level and its corresponding risk value range can be adaptively set according to actual conditions, and this embodiment does not impose any restrictions on this.

[0085] In actual operation, the above-mentioned risk value can be calculated in real time. For example, the risk value can be calculated once every minute and an alarm signal of a major hazard source of hazardous chemicals can be generated.

[0086] Corresponding to the above-mentioned method for early warning of major hazardous sources of dangerous chemicals, this embodiment also provides an early warning device for major hazardous sources of dangerous chemicals, which is applicable to the management and control system of a chemical park. Figure 6 , Figure 6 This is a schematic diagram of the structure of a device for early warning of major hazardous sources of dangerous chemicals proposed in one or more embodiments of this specification. This device can be used to implement the above-mentioned method for early warning of major hazardous sources of dangerous chemicals. It should be noted that the method for early warning of major hazardous sources of dangerous chemicals described in one or more embodiments of this application can rely on Figure 6 The hazardous chemicals major hazard source risk warning device shown is implemented, but not limited to this device.

[0087] like Figure 6 As shown, the hazardous chemicals major hazard source risk warning device includes:

[0088] The first data acquisition module is configured to obtain a list of major hazardous sources of hazardous chemicals and monitoring data of each major hazardous source of hazardous chemicals from a major hazardous source database of a management and control system.

[0089] The second data acquisition module is configured to respond to the presence of alarm data in the monitoring data of any major hazardous source of hazardous chemicals and to select the major hazardous source of hazardous chemicals as a target hazardous source. The alarm data includes process indicator alarm data and leakage alarm data.

[0090] The risk value calculation module is configured to extract hazardous chemical inventory data from the monitoring data of the target hazardous source, determine the grading index of the target hazardous source based on the hazardous chemical inventory alarm data of the target hazardous source, and determine the inherent hazard correction coefficient of the target hazardous source based on the grading index.

[0091] The risk value calculation module is also used to calculate the real-time warning coefficient of key parameters based on the process indicator alarm data and leakage alarm data of the target hazard source:

[0092] ;

[0093] in, Indicates the real-time warning coefficient of key parameters, represents the weight coefficient, Indicates the type of sensor that has issued an alarm. Indicates the number of alarms that occur simultaneously The number of sensor types, Indicates the alarm occurred The first type of sensor The alarm level score of each sensor, Indicates the alarm occurred The first type of sensor The alarm duration coefficient of each sensor, and The value of is positively correlated with the alarm duration.

[0094] The risk value calculation module is also used to calculate the risk value of the target hazard source based on the inherent hazard correction coefficient and key parameter real-time warning coefficient of the target hazard source. :

[0095] ;

[0096] in, Indicates the inherent hazard correction factor of the target hazard source, Indicates the risk value of the target hazard source.

[0097] Alarm module, configured based on the risk value of the target hazard source , determine the risk warning level of the target hazardous source, and generate corresponding alarm information and send it to the management and control system.

[0098] Specifically, the above-mentioned risk value calculation module is specifically used to: determine the major hazard source level of hazardous chemicals of the target hazard source based on the grading index; and find the inherent hazard correction coefficient corresponding to the target hazard source according to the pre-set mapping table of major hazard source levels of hazardous chemicals and inherent hazard correction coefficients.

[0099] Specifically, the above-mentioned alarm module is specifically used to: Match the risk value range with the preset risk warning level, and determine the risk warning level of the target hazard source based on the matching results.

[0100] Corresponding to the above-mentioned method for early warning of risks of major hazardous sources of dangerous chemicals, this embodiment also provides a computer-readable storage medium on which a computer program is stored. When the computer program is executed by a processor, the processor executes the above-mentioned method for early warning of risks of major hazardous sources of dangerous chemicals.

[0101] Corresponding to the above-mentioned method for early warning of major hazardous sources of dangerous chemicals, this embodiment further provides an electronic device, including:

[0102] One or more processors; and a memory associated with the one or more processors, the memory being used to store program instructions, which, when read and executed by the one or more processors, enable the electronic device to execute the above-mentioned method for early warning of major hazardous sources of dangerous chemicals.

[0103] It should be understood that the structures illustrated in the embodiments of this specification do not constitute specific limitations on the systems of the embodiments of this specification. In other embodiments of the specification, the above-mentioned system may include more or fewer components than shown in the figure, or some components may be combined, some components may be separated, or the components may be arranged differently. The components shown in the figure may be implemented in hardware, software, or a combination of software and hardware.

[0104] The various embodiments in this specification are described in a progressive manner. Similar parts between the various embodiments can be referred to in conjunction with each other. Each embodiment focuses on the differences from other embodiments. In particular, the device embodiments are generally similar to the method embodiments, so the description is relatively simple. For relevant parts, refer to the description of the method embodiments.

[0105] The foregoing description of this specification describes specific embodiments. Other embodiments are within the scope of the appended claims. In some cases, the actions or steps recited in the claims can be performed in an order different from that described in the embodiments and still achieve the desired results. Furthermore, the processes depicted in the accompanying drawings do not necessarily require the specific order shown or sequential order to achieve the desired results. In certain embodiments, multitasking and parallel processing are also possible or may be advantageous.

[0106] It should be noted that the above examples are merely specific embodiments of the present invention. Obviously, the present invention is not limited to the above examples, and many similar variations are possible. All variations directly derived from or associating with the present invention by those skilled in the art are intended to fall within the scope of protection of the present invention.

Claims

1. A risk warning method for major hazardous sources of hazardous chemicals, characterized by: The method is applicable to the management and control system of a chemical park; the method comprises: Obtain a list of major hazardous chemical sources and monitoring data for each major hazardous chemical source from the major hazardous chemical source database of the management and control system; In response to the presence of alarm data in the monitoring data of any major hazardous source of hazardous chemicals, the major hazardous source of hazardous chemicals is designated as a target hazardous source; the alarm data includes process indicator alarm data and leakage alarm data; Extracting hazardous chemical inventory data from the monitoring data of the target hazardous source, determining a grading index of the target hazardous source based on the hazardous chemical inventory data, and determining an inherent hazard correction coefficient of the target hazardous source based on the grading index; Calculate the real-time warning coefficient of key parameters based on the process indicator alarm data and leakage alarm data of the target hazard source: ； in, represents the real-time warning coefficient of the key parameter, represents the weight coefficient, Indicates the type of sensor that has issued an alarm. Indicates the number of alarms that occur simultaneously The number of sensor types, Indicates the alarm occurred The first type of sensor The alarm level score of each sensor, Indicates the alarm occurred The first type of sensor The alarm duration coefficient of each sensor, and The value of is positively correlated with the alarm duration; Based on the inherent hazard correction coefficient of the target hazard source and the real-time warning coefficient of key parameters, the risk value of the target hazard source is calculated: ； in, Indicates the inherent hazard correction factor of the target hazard source, Indicates the risk value of the target hazard source; Based on the risk value of the target hazard source, the risk warning level of the target hazard source is determined, and corresponding alarm information is generated and sent to the management and control system.

2. The method according to claim 1, characterized in that Determining the inherent hazard correction coefficient of the target hazard source based on the classification index specifically includes: Determining the major hazardous source level of hazardous chemicals of the target hazardous source based on the grading indicators; According to a preset mapping table of major hazard source levels of hazardous chemicals and inherent hazard correction coefficients, the inherent hazard correction coefficient corresponding to the target hazard source is searched.

3. The method according to claim 1, characterized in that Determining the risk warning level of the target hazard source based on the risk value of the target hazard source specifically includes: The risk value of the target hazard source is matched with a preset risk value interval of a risk warning level, and the risk warning level of the target hazard source is determined according to the matching result.

4. A risk warning device for major hazardous sources of hazardous chemicals, characterized by: The device is applicable to the management and control system of a chemical park; the device comprises: A first data acquisition module is configured to obtain a list of major hazardous chemical hazard sources and monitoring data of each major hazardous chemical hazard source from a database of major hazardous chemical hazard sources in the management and control system; A second data acquisition module is configured to, in response to the presence of alarm data in the monitoring data of any major hazardous source of hazardous chemicals, take the major hazardous source of hazardous chemicals as a target hazardous source; the alarm data includes process indicator alarm data and leakage alarm data; a risk value calculation module configured to extract hazardous chemical inventory data from the monitoring data of the target hazardous source, determine a grading index of the target hazardous source based on the hazardous chemical inventory data of the target hazardous source, and determine an inherent hazard correction coefficient of the target hazardous source based on the grading index; The risk value calculation module is further used to calculate the real-time warning coefficient of key parameters based on the process indicator alarm data and leakage alarm data of the target hazard source: ； in, represents the real-time warning coefficient of the key parameter, represents the weight coefficient, Indicates the type of sensor that has issued an alarm. Indicates the number of alarms that occur simultaneously The number of sensor types, Indicates the alarm occurred The first type of sensor The alarm level score of each sensor, Indicates the alarm occurred The first type of sensor The alarm duration coefficient of each sensor, and The value of is positively correlated with the alarm duration; The risk value calculation module is further configured to calculate the risk value of the target hazard source based on the inherent hazard correction coefficient of the target hazard source and the real-time warning coefficient of key parameters: ； in, Indicates the inherent hazard correction factor of the target hazard source, Indicates the risk value of the target hazard source; The alarm module is configured to determine the risk warning level of the target hazard source based on the risk value of the target hazard source, and generate corresponding alarm information to send to the management and control system.

5. The device according to claim 4, characterized in that The risk value calculation module is specifically used to: Determining the major hazardous source level of hazardous chemicals of the target hazardous source based on the grading indicators; According to a preset mapping table of major hazard source levels of hazardous chemicals and inherent hazard correction coefficients, the inherent hazard correction coefficient corresponding to the target hazard source is searched.

6. The device according to claim 4, characterized in that The alarm module is specifically used for: The risk value of the target hazard source is matched with a preset risk value interval of a risk warning level, and the risk warning level of the target hazard source is determined according to the matching result.

7. A computer-readable storage medium, characterized in that The computer-readable storage medium stores a computer program, and when the computer program is run on an electronic device, the electronic device is caused to perform the method according to any one of claims 1 to 3.

8. An electronic device, characterized in that: include: at least one memory for storing a program; At least one processor is configured to execute the program stored in the memory, and when the program stored in the memory is executed, the processor is configured to execute the method according to any one of claims 1 to 3.

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