Common dangerous chemical risk and emergency disposal measure analysis system

Abstract

The invention relates to the technical field of chemical risk management and control, and particularly discloses a common dangerous chemical risk and emergency disposal measure analysis system, which comprises the steps of collecting historical accident data to obtain an accident occurrence value and a casualty number occurrence value, calculating a risk reference coefficient Fx, marking dangerous chemicals as high-risk chemicals and low-risk chemicals, and determining the risk of the high-risk chemicals and the low-risk chemicals according to the risk reference coefficient Fx. The method comprises the following steps: marking dangerous chemicals as high-risk chemicals and low-risk chemicals based on a single marking result of the dangerous chemicals, calculating to obtain a maintenance deviation coefficient Wh based on the high-risk chemicals, comparing the maintenance deviation coefficient Wh with a maintenance deviation coefficient threshold value Whz, judging to generate a standard signal and a substandard signal, adjusting the maintenance duration according to the substandard signal, and judging whether the maintenance duration reaches the standard or not according to the substandard signal. The system considers multi-dimensional data, accurately divides risk levels, realizes dynamic monitoring and fine management, can effectively deal with dangerous chemical risks, and improves the emergency disposal efficiency and the chemical management level.

Description

Technical Field

[0001] The present invention relates to the technical field of chemical risk management and control, and in particular to a system for analyzing the risks of commonly used hazardous chemicals and emergency response measures. Background Art

[0002] Hazardous chemicals are increasingly used in industrial production, chemical research and many areas of daily life. These hazardous chemicals bring potential risks. Hazardous chemicals may cause fires, explosions, poisoning and other accidents due to their own chemical properties and improper operation, storage or transportation conditions, endangering human life and health and the ecological environment.

[0003] There are some limitations in the existing risk assessment and emergency response methods for hazardous chemicals. On the one hand, the assessment of chemical risks often relies on a single indicator or empirical judgment, and lacks a systematic method that comprehensively considers multiple factors, resulting in inaccurate assessment of chemical risks. On the other hand, in terms of emergency response, there is a lack of refined management and emergency response plans for chemicals of different risk levels. Compared with existing technologies, risk assessment is performed by considering multi-dimensional data, including chemical properties and historical accident data, and accurately dividing risk levels through weighted calculations. Real-time dynamic monitoring of risks, drawing curves to analyze changes, and timely warnings. Subdivide the chemical control level according to the risk level and emergency management coefficient, formulate corresponding emergency plans, and achieve refined management of high-risk chemicals.

[0004] To this end, this patent is a supporting key R&D project of the autonomous region "Research on Safety Risk Assessment and Operation Specifications Based on Equipment Process Data and Expert Knowledge" (Project No.: 2023B01031-1) to solve practical problems. The present invention provides a common hazardous chemical risk and emergency response measures analysis system.

[0005] To this end, the present invention provides a common hazardous chemical risk and emergency disposal measures analysis system. Summary of the invention

[0006] The purpose of the present invention is to provide a common hazardous chemical risk and emergency disposal measures analysis system to solve the above-mentioned background problems.

[0007] The purpose of the present invention can be achieved by the following technical solutions:

[0008] Commonly used hazardous chemicals risk and emergency response measures analysis system, including:

[0009] Information collection module: collect historical accident data of commonly used hazardous chemicals in the historical monitoring period, process them to obtain accident occurrence value Sg and casualty occurrence value Sw, calculate risk reference coefficient Fx based on accident occurrence value Sg and casualty occurrence value Sw, compare risk reference coefficient Fx with risk reference threshold value Yz, mark hazardous chemicals once, and mark hazardous chemicals as high-risk chemicals and low-risk chemicals;

[0010] Risk grading module: In multiple historical monitoring cycles, based on the single marking results of hazardous chemicals, the risk frequency ratio Fc and the risk degree value Fb are calculated, and the high-risk coefficient Yj is calculated based on the risk frequency ratio Fc and the risk degree value Fb. The hazardous chemicals are finally marked according to the high-risk coefficient Yj, and the hazardous chemicals are marked as high-risk chemicals and low-risk chemicals;

[0011] Maintenance analysis module: Based on high-risk chemicals, obtain the data of high-risk chemicals in multiple historical monitoring cycles, where the maintenance data includes the duration of a single maintenance. Based on the maintenance data, calculate the maintenance frequency deviation ratio Yc and the maintenance duration deviation ratio Ys. Based on the maintenance frequency deviation ratio Yc and the maintenance duration deviation ratio Ys, calculate the maintenance deviation coefficient Wh, compare the maintenance deviation coefficient Wh with the maintenance deviation coefficient threshold Whz, determine whether the maintenance meets the standard, and generate a maintenance signal, where the maintenance signal includes a standard-reaching signal and a non-standard-reaching signal;

[0012] Maintenance correction module: Based on the non-compliance signal, the maintenance time adjustment coefficient is obtained, and based on the maintenance time adjustment coefficient, the adjusted maintenance time XW is calculated, and subsequent maintenance is performed on high-risk chemicals according to the adjusted maintenance time.

[0013] As a further technical solution of the present invention: the risk reference coefficient Fx is obtained in the following manner:

[0014] Calculate the risk reference coefficient Fx based on the accident occurrence value Sg and the casualty occurrence value Sw;

[0015] By formula: Where a1 and a2 are preset proportional coefficients;

[0016] Compare the risk reference coefficient Fx with the risk reference coefficient threshold Yz;

[0017] If the risk reference coefficient Fx is greater than the risk reference coefficient threshold Yz, it indicates that the risk of the hazardous chemical is high, and the hazardous chemical is marked as a high-risk chemical;

[0018] If the risk reference coefficient Fx is less than or equal to the risk reference coefficient threshold Yz, it indicates the level of risk of the hazardous chemical and the hazardous chemical is marked as a low-risk chemical.

[0019] As a further technical solution of the present invention: the accident occurrence value Sg and the casualty occurrence value Sw are obtained in the following manner:

[0020] Calculate the number of stories and the monitoring time in the historical monitoring period to obtain the accident occurrence value, which is marked as Sg;

[0021] The number of casualties is ratioed to the monitoring time to obtain the number of casualties, which is marked as Sw.

[0022] As a further technical solution of the present invention: the high-risk coefficient Yj is obtained as follows:

[0023] By formula: The high-risk coefficient Yj is obtained, where b1 and b2 are preset proportional coefficients.

[0024] As a further technical solution of the present invention: the risk frequency ratio Fc and the risk occurrence ratio Fb are obtained as follows:

[0025] In all historical monitoring cycles, the number of times hazardous chemicals are marked as high-risk chemicals is counted to obtain the number of high-risk markings, the total number of times hazardous chemicals are marked is counted, and the ratio of the number of high-risk markings to the total number of times hazardous chemicals are marked is processed to obtain the risk number ratio Fc;

[0026] During all historical monitoring periods, the risk reference coefficient when the hazardous chemicals are marked as high-risk chemicals is subtracted from the risk reference coefficient threshold to obtain the risk excess difference. All the risk excess differences are summed and averaged to obtain the mean of the risk excess differences. The mean of the risk excess differences is ratioed with the risk reference coefficient threshold to obtain the risk degree value Fb.

[0027] As a further technical solution of the present invention: the classification method of the high-risk chemicals and low-risk chemicals is:

[0028] Compare the high-risk coefficient Yj with the high-risk coefficient threshold Yz;

[0029] If the high-risk factor Fx is greater than the high-risk factor Yz, the hazardous chemicals will be finally marked as high-risk chemicals;

[0030] If the risk warning coefficient Fx is less than or equal to the risk coefficient threshold Yz, the hazardous chemicals will be finally marked as low-risk chemicals.

[0031] As a further technical solution of the present invention: the maintenance signal is generated in the following manner:

[0032] Compare the maintenance deviation coefficient Wh with the maintenance deviation coefficient threshold Whz;

[0033] If the maintenance deviation coefficient Wh is greater than the maintenance deviation coefficient threshold Whz, it indicates that the maintenance of high-risk chemicals does not meet the standards, and a non-standard signal is generated;

[0034] If the maintenance deviation coefficient Wh is less than or equal to the maintenance deviation coefficient threshold Whz, it indicates that the standard is met and a standard-reaching signal is generated.

[0035] As a further technical solution of the present invention: the maintenance deviation coefficient Wh is obtained in the following manner:

[0036] By formula: The maintenance deviation coefficient Wh is obtained, where d1 and d2 are preset proportional coefficients.

[0037] As a further technical solution of the present invention: the maintenance times deviation ratio Yc and the maintenance duration deviation ratio Ys are obtained as follows:

[0038] Obtain the single maintenance duration of high-risk chemicals in multiple historical periods and compare it with the prescribed maintenance duration;

[0039] If the single maintenance duration is less than the prescribed maintenance duration, the single maintenance corresponding to the single maintenance duration will be marked as abnormal maintenance;

[0040] If the duration of a single maintenance is greater than or equal to the prescribed maintenance duration, the single maintenance corresponding to the single maintenance duration will be marked as normal maintenance;

[0041] Count the total number of single maintenance and abnormal maintenance of high-risk chemicals in multiple historical monitoring cycles, and perform ratio processing on the abnormal maintenance number and the total number of single maintenance to obtain the maintenance number deviation ratio Yc;

[0042] Based on abnormal maintenance, obtain the single maintenance duration corresponding to the abnormal maintenance, perform subtraction processing on it and the specified maintenance duration, and take the absolute value of the difference to obtain the maintenance missing duration, sum up and average the maintenance missing duration of all abnormal maintenance to obtain the mean of the maintenance missing duration, perform ratio processing on the mean of the maintenance missing duration and the specified maintenance duration to obtain the maintenance duration deviation ratio Ys.

[0043] 10. The common hazardous chemicals risk and emergency disposal measures analysis system according to claim 1, characterized in that: the adjustment maintenance time XW is obtained in the following manner:

[0044] Specifically, the maintenance deviation coefficient and the maintenance deviation coefficient threshold are subjected to difference processing to obtain the maintenance duration adjustment coefficient;

[0045] The adjusted maintenance time XW is obtained through the formula: XW=WH*(1+TZ), where WH represents the prescribed maintenance time and TZ represents the maintenance time adjustment coefficient.

[0046] Beneficial effects of the present invention:

[0047] (1) Collect historical accident data of commonly used hazardous chemicals in the historical monitoring period, calculate the risk reference coefficient Fx, compare the risk reference coefficient Fx with the risk reference threshold Yz, perform a single mark on the hazardous chemicals, and mark the hazardous chemicals as high-risk chemicals and low-risk chemicals. In multiple historical monitoring periods, based on the single marking results of hazardous chemicals, calculate the risk frequency ratio Fc and the risk degree value Fb, calculate the high-risk coefficient Yj based on the risk frequency ratio Fc and the risk degree value Fb, and finally mark the hazardous chemicals according to the high-risk coefficient Yj, and mark the hazardous chemicals as high-risk chemicals and low-risk chemicals. Accurate monitoring and analysis of maintenance conditions can timely discover problems in the maintenance process and provide a basis for subsequent maintenance adjustments;

[0048] (2) Based on high-risk chemicals, data on high-risk chemicals in multiple historical monitoring cycles are obtained, wherein the maintenance data includes the duration of a single maintenance. Based on the maintenance data, the maintenance frequency deviation ratio Yc and the maintenance duration deviation ratio Ys are calculated. Based on the maintenance frequency deviation ratio Yc and the maintenance duration deviation ratio Ys, the maintenance deviation coefficient Wh is calculated. The maintenance deviation coefficient Wh is compared with the maintenance deviation coefficient threshold Whz to determine whether the maintenance meets the standard, and a maintenance signal is generated. The maintenance signal includes a standard-reaching signal and a non-standard-reaching signal. Based on the non-standard-reaching signal, a maintenance duration adjustment coefficient is obtained. Based on the maintenance duration adjustment coefficient, an adjusted maintenance duration is calculated. Subsequent maintenance is performed on the high-risk chemicals according to the adjusted maintenance duration. Maintenance adjustment and emergency management measures can effectively improve the efficiency and safety of hazardous chemical management and reduce the possibility and severity of accidents. BRIEF DESCRIPTION OF THE DRAWINGS

[0049] The present invention will be further described below in conjunction with the accompanying drawings.

[0050] Figure 1 This is a module diagram of a commonly used hazardous chemical risk and emergency response measures analysis system of the present invention;

[0051] Figure 2 It is a flow chart of the method for obtaining the maintenance deviation coefficient Wh in the hazardous chemical risk and emergency disposal measures analysis system of the present invention. DETAILED DESCRIPTION

[0052] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0053] See also Figure 1 As shown, the present invention is a common hazardous chemical risk and emergency disposal measures analysis system.

[0054] Example 1

[0055] Information collection module: collect historical accident data of commonly used hazardous chemicals in the historical monitoring period, process them to obtain accident occurrence value Sg and casualty occurrence value Sw, calculate risk reference coefficient Fx based on accident occurrence value Sg and casualty occurrence value Sw, compare risk reference coefficient Fx with risk reference threshold value Yz, mark hazardous chemicals once, and mark hazardous chemicals as high-risk chemicals and low-risk chemicals;

[0056] Historical accident data include: number of accidents, number of casualties;

[0057] Calculate the number of stories and the monitoring time in the historical monitoring period to obtain the accident occurrence value, which is marked as Sg;

[0058] The number of casualties is processed by ratioing the number of casualties to the monitoring time to obtain the number of casualties, which is marked as Sw;

[0059] Calculate the risk reference coefficient Fx based on the accident occurrence value Sg and the casualty occurrence value Sw;

[0060] By formula: Where a1 and a2 are preset proportional coefficients;

[0061] Compare the risk reference coefficient Fx with the risk reference coefficient threshold Yz;

[0062] If the risk reference coefficient Fx is greater than the risk reference coefficient threshold Yz, it indicates that the risk of the hazardous chemical is high, and the hazardous chemical is marked as a high-risk chemical;

[0063] If the risk reference coefficient Fx is less than or equal to the risk reference coefficient threshold Yz, it indicates the risk level of the hazardous chemical, and the hazardous chemical is marked as a low-risk chemical;

[0064] Risk grading module: In multiple historical monitoring cycles, based on the single marking results of hazardous chemicals, the risk frequency ratio Fc and the risk degree value Fb are calculated, and the high-risk coefficient Yj is calculated based on the risk frequency ratio Fc and the risk degree value Fb. The hazardous chemicals are finally marked according to the high-risk coefficient Yj, and the hazardous chemicals are marked as high-risk chemicals and low-risk chemicals;

[0065] In all historical monitoring cycles, the number of times hazardous chemicals are marked as high-risk chemicals is counted to obtain the number of high-risk markings, the total number of times hazardous chemicals are marked is counted, and the ratio of the number of high-risk markings to the total number of times hazardous chemicals are marked is processed to obtain the risk number ratio Fc;

[0066] In all historical monitoring periods, the risk reference coefficient when the hazardous chemicals are marked as high-risk chemicals is subtracted from the risk reference coefficient threshold to obtain the risk excess difference, all the obtained risk excess differences are summed and averaged to obtain the risk excess difference mean, and the risk excess difference mean is ratioed with the risk reference coefficient threshold to obtain the risk degree value Fb;

[0067] Calculate the high-risk coefficient Yj based on the risk frequency ratio Fc and risk occurrence ratio Fb;

[0068] By formula: The high-risk coefficient Yj is obtained, where b1 and b2 are preset proportional coefficients;

[0069] Compare the high-risk coefficient Yj with the high-risk coefficient threshold Yz;

[0070] If the high-risk factor Fx is greater than the high-risk factor Yz, the hazardous chemicals will be finally marked as high-risk chemicals;

[0071] If the risk warning coefficient Fx is less than or equal to the risk coefficient threshold Yz, the hazardous chemicals will be finally marked as low-risk chemicals;

[0072] The technical solution of this example is: collect historical accident data of commonly used hazardous chemicals within the historical monitoring period, process them to obtain accident occurrence value Sg and casualty occurrence value Sw, calculate the risk reference coefficient Fx based on the accident occurrence value Sg and the casualty occurrence value Sw, compare the risk reference coefficient Fx with the risk reference threshold value Yz, perform a single mark on the hazardous chemicals, and mark the hazardous chemicals as high-risk chemicals and low-risk chemicals; within multiple historical monitoring periods, calculate the risk frequency ratio Fc and the risk degree value Fb based on the single marking results of the hazardous chemicals, calculate the high risk coefficient Yj based on the risk frequency ratio Fc and the risk degree value Fb, finally mark the hazardous chemicals according to the high risk coefficient Yj, and mark the hazardous chemicals as high-risk chemicals and low-risk chemicals.

[0073] Example 2

[0074] Based on Example 1, the common hazardous chemical risk and emergency disposal measures analysis system also includes:

[0075] Maintenance analysis module: Based on high-risk chemicals, obtain the data of high-risk chemicals in multiple historical monitoring cycles, where the maintenance data includes the duration of a single maintenance. Based on the maintenance data, calculate the maintenance frequency deviation ratio Yc and the maintenance duration deviation ratio Ys. Based on the maintenance frequency deviation ratio Yc and the maintenance duration deviation ratio Ys, calculate the maintenance deviation coefficient Wh, compare the maintenance deviation coefficient Wh with the maintenance deviation coefficient threshold Whz, determine whether the maintenance meets the standard, and generate a maintenance signal, where the maintenance signal includes a standard-reaching signal and a non-standard-reaching signal;

[0076] like Figure 2 As shown, the process of obtaining the maintenance deviation coefficient Wh is as follows:

[0077] Obtain the single maintenance duration of high-risk chemicals in multiple historical periods and compare it with the prescribed maintenance duration;

[0078] If the single maintenance duration is less than the prescribed maintenance duration, the single maintenance corresponding to the single maintenance duration will be marked as abnormal maintenance;

[0079] If the duration of a single maintenance is greater than or equal to the prescribed maintenance duration, the single maintenance corresponding to the single maintenance duration will be marked as normal maintenance;

[0080] Count the total number of single maintenance and abnormal maintenance of high-risk chemicals in multiple historical monitoring cycles, and perform ratio processing on the abnormal maintenance number and the total number of single maintenance to obtain the maintenance number deviation ratio Yc;

[0081] Based on abnormal maintenance, obtain the single maintenance duration corresponding to the abnormal maintenance, perform difference processing on it and the specified maintenance duration, and take the absolute value of the difference to obtain the maintenance missing duration, sum up and average the maintenance missing duration of all abnormal maintenance to obtain the mean of the maintenance missing duration, perform ratio processing on the mean of the maintenance missing duration and the specified maintenance duration to obtain the maintenance duration deviation ratio Ys;

[0082] By formula: The maintenance deviation coefficient Wh is obtained, where d1 and d2 are preset proportional coefficients;

[0083] Compare the maintenance deviation coefficient Wh with the maintenance deviation coefficient threshold Whz;

[0084] If the maintenance deviation coefficient Wh is greater than the maintenance deviation coefficient threshold Whz, it indicates that the maintenance of high-risk chemicals does not meet the standards, and a non-standard signal is generated;

[0085] If the maintenance deviation coefficient Wh is less than or equal to the maintenance deviation coefficient threshold Whz, it indicates that the standard is met and a standard-reaching signal is generated;

[0086] The technical solution of this embodiment is: based on high-risk chemicals, data of high-risk chemicals in multiple historical monitoring cycles are obtained, wherein the maintenance data includes the duration of a single maintenance, and based on the maintenance data, the maintenance frequency deviation ratio Yc and the maintenance duration deviation ratio Ys are calculated, and based on the maintenance frequency deviation ratio Yc and the maintenance duration deviation ratio Ys, the maintenance deviation coefficient Wh is calculated, and the maintenance deviation coefficient Wh is compared with the maintenance deviation coefficient threshold Whz to determine whether the maintenance meets the standard, and generate a maintenance signal, wherein the maintenance signal includes a standard-reaching signal and a non-standard-reaching signal.

[0087] Example 3

[0088] Maintenance correction module: Based on the non-compliance signal, the maintenance time adjustment coefficient is obtained, and based on the maintenance time adjustment coefficient, the adjusted maintenance time is calculated, and subsequent maintenance is performed on high-risk chemicals according to the adjusted maintenance time;

[0089] Specifically, the maintenance deviation coefficient and the maintenance deviation coefficient threshold are subjected to difference processing to obtain the maintenance duration adjustment coefficient;

[0090] The adjusted maintenance time XW is obtained by the formula: XW = WH*(1+TZ), where WH represents the prescribed maintenance time and TZ represents the maintenance time adjustment coefficient;

[0091] The above is a detailed description of an embodiment of the invention, but the content is only a preferred embodiment of the invention and cannot be considered to limit the scope of implementation of the invention. All equivalent changes and improvements made within the scope of the application of the invention should still fall within the scope of the patent coverage of the invention.

Claims

1. Commonly used hazardous chemicals risk and emergency response measures analysis system, characterized by: include: Information collection module: collect historical accident data of commonly used hazardous chemicals in the historical monitoring period, process them to obtain accident occurrence value Sg and casualty occurrence value Sw, calculate risk reference coefficient Fx based on accident occurrence value Sg and casualty occurrence value Sw, compare risk reference coefficient Fx with risk reference threshold value Yz, mark hazardous chemicals once, and mark hazardous chemicals as high-risk chemicals and low-risk chemicals; Risk grading module: In multiple historical monitoring cycles, based on the single marking results of hazardous chemicals, the risk frequency ratio Fc and the risk degree value Fb are calculated, and the high-risk coefficient Yj is calculated based on the risk frequency ratio Fc and the risk degree value Fb. The hazardous chemicals are finally marked according to the high-risk coefficient Yj, and the hazardous chemicals are marked as high-risk chemicals and low-risk chemicals; Maintenance analysis module: Based on high-risk chemicals, obtain the data of high-risk chemicals in multiple historical monitoring cycles, where the maintenance data includes the duration of a single maintenance. Based on the maintenance data, calculate the maintenance frequency deviation ratio Yc and the maintenance duration deviation ratio Ys. Based on the maintenance frequency deviation ratio Yc and the maintenance duration deviation ratio Ys, calculate the maintenance deviation coefficient Wh, compare the maintenance deviation coefficient Wh with the maintenance deviation coefficient threshold Whz, determine whether the maintenance meets the standard, and generate a maintenance signal, where the maintenance signal includes a standard-reaching signal and a non-standard-reaching signal; Maintenance correction module: Based on the non-compliance signal, the maintenance time adjustment coefficient is obtained, and based on the maintenance time adjustment coefficient, the adjusted maintenance time XW is calculated, and subsequent maintenance is performed on high-risk chemicals according to the adjusted maintenance time.

2. The common hazardous chemicals risk and emergency disposal measures analysis system according to claim 1 is characterized by: The risk reference coefficient Fx is obtained as follows: Calculate the risk reference coefficient Fx based on the accident occurrence value Sg and the casualty occurrence value Sw; By formula: Where a1 and a2 are preset proportional coefficients; Compare the risk reference coefficient Fx with the risk reference coefficient threshold Yz; If the risk reference coefficient Fx is greater than the risk reference coefficient threshold Yz, it indicates that the risk of the hazardous chemical is high, and the hazardous chemical is marked as a high-risk chemical; If the risk reference coefficient Fx is less than or equal to the risk reference coefficient threshold Yz, it indicates the level of risk of the hazardous chemical and the hazardous chemical is marked as a low-risk chemical.

3. The common hazardous chemicals risk and emergency disposal measures analysis system according to claim 2 is characterized by: The accident occurrence value Sg and the casualty occurrence value Sw are obtained as follows: Calculate the number of stories and the monitoring time in the historical monitoring period to obtain the accident occurrence value, which is marked as Sg; The number of casualties is ratioed to the monitoring time to obtain the number of casualties, which is marked as Sw.

4. The common hazardous chemicals risk and emergency disposal measures analysis system according to claim 1 is characterized by: The high risk coefficient Yj is obtained as follows: By formula: The high-risk coefficient Yj is obtained, where b1 and b2 are preset proportional coefficients.

5. The common hazardous chemicals risk and emergency disposal measures analysis system according to claim 4 is characterized by: The risk frequency ratio Fc and risk occurrence ratio Fb are obtained as follows: In all historical monitoring cycles, the number of times hazardous chemicals are marked as high-risk chemicals is counted to obtain the number of high-risk markings, the total number of times hazardous chemicals are marked is counted, and the ratio of the number of high-risk markings to the total number of times hazardous chemicals are marked is processed to obtain the risk number ratio Fc; During all historical monitoring periods, the risk reference coefficient when the hazardous chemicals are marked as high-risk chemicals is subtracted from the risk reference coefficient threshold to obtain the risk excess difference. All the risk excess differences are summed and averaged to obtain the mean of the risk excess differences. The mean of the risk excess differences is ratioed with the risk reference coefficient threshold to obtain the risk degree value Fb.

6. The common hazardous chemicals risk and emergency disposal measures analysis system according to claim 1 is characterized by: The classification method of high-risk chemicals and low-risk chemicals is as follows: Compare the high-risk coefficient Yj with the high-risk coefficient threshold Yz; If the high-risk factor Fx is greater than the high-risk factor Yz, the hazardous chemicals will be finally marked as high-risk chemicals; If the risk warning coefficient Fx is less than or equal to the risk coefficient threshold Yz, the hazardous chemicals will be finally marked as low-risk chemicals.

7. The common hazardous chemicals risk and emergency disposal measures analysis system according to claim 1 is characterized by: The maintenance signal is generated in the following manner: Compare the maintenance deviation coefficient Wh with the maintenance deviation coefficient threshold Whz; If the maintenance deviation coefficient Wh is greater than the maintenance deviation coefficient threshold Whz, it indicates that the maintenance of high-risk chemicals does not meet the standards, and a non-standard signal is generated; If the maintenance deviation coefficient Wh is less than or equal to the maintenance deviation coefficient threshold Whz, it indicates that the standard is met and a standard-reaching signal is generated.

8. The common hazardous chemicals risk and emergency disposal measures analysis system according to claim 7 is characterized by: The maintenance deviation coefficient Wh is obtained as follows: By formula: The maintenance deviation coefficient Wh is obtained, where d1 and d2 are preset proportional coefficients.

9. The common hazardous chemicals risk and emergency disposal measures analysis system according to claim 6 is characterized by: The maintenance times deviation ratio Yc and maintenance duration deviation ratio Ys are obtained as follows: Obtain the single maintenance duration of high-risk chemicals in multiple historical periods and compare it with the prescribed maintenance duration; If the single maintenance duration is less than the prescribed maintenance duration, the single maintenance corresponding to the single maintenance duration will be marked as abnormal maintenance; If the duration of a single maintenance is greater than or equal to the prescribed maintenance duration, the single maintenance corresponding to the single maintenance duration will be marked as normal maintenance; Count the total number of single maintenance and abnormal maintenance of high-risk chemicals in multiple historical monitoring cycles, and perform ratio processing on the abnormal maintenance number and the total number of single maintenance to obtain the maintenance number deviation ratio Yc; Based on abnormal maintenance, obtain the single maintenance duration corresponding to the abnormal maintenance, perform subtraction processing on it and the specified maintenance duration, and take the absolute value of the difference to obtain the maintenance missing duration, sum up and average the maintenance missing duration of all abnormal maintenance to obtain the mean of the maintenance missing duration, perform ratio processing on the mean of the maintenance missing duration and the specified maintenance duration to obtain the maintenance duration deviation ratio Ys.

10. The common hazardous chemicals risk and emergency disposal measures analysis system according to claim 1, characterized in that: The method for obtaining the adjusted maintenance time XW is as follows: Specifically, the maintenance deviation coefficient and the maintenance deviation coefficient threshold are subjected to difference processing to obtain the maintenance duration adjustment coefficient; The adjusted maintenance time XW is obtained through the formula: XW=WH*(1+TZ), where WH represents the prescribed maintenance time and TZ represents the maintenance time adjustment coefficient.

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