Dangerous chemical industry risk assessment method and system
By constructing a multi-dimensional evaluation index system and risk classification model, and adopting the SMART principle and Pareto principle, the problem of low accuracy and efficiency in risk assessment in the hazardous chemicals industry has been solved, achieving more accurate and efficient risk assessment and ensuring enterprise safety.
Patent Information
- Application Number
- CN202511164905.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-08-20
- Publication Date
- 2025-10-31
AI Technical Summary
Existing risk assessment methods in the hazardous chemicals industry suffer from problems such as insufficient basic data, limitations in assessment methods, lack of unified standards, lagging technological updates, and a shortage of professional personnel, resulting in low accuracy and efficiency in risk assessment.
A multi-dimensional evaluation index system is constructed, a risk grading model is designed, and the SMART principle and Pareto rule are adopted. Risk grading assessment is achieved through risk value calculation formulas and grading rules.
It significantly improves the accuracy and efficiency of risk assessment, helps companies identify potential risks early, reduces the probability and impact of accidents, and ensures safe operation.
Smart Images

Figure CN120875575A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of data processing technology, specifically to a risk assessment method and system for the hazardous chemicals industry. Background Technology
[0002] Although the technical status of risk assessment methods in the hazardous chemicals industry is constantly developing and improving, there are still some shortcomings, mainly reflected in the following aspects:
[0003] I. Insufficient Basic Data and Research: Risk assessment of hazardous chemicals relies on a large amount of basic data, including physical, health, and environmental hazard data. However, my country's research on basic data for certain new or special chemicals is currently insufficient, which may lead to inaccurate risk assessment results or a lack of sufficient evidence.
[0004] II. Limitations of assessment methods and techniques: Existing assessment methods, such as hazard index assessment, event tree and fault tree, although effective to a certain extent, may still be limited by various factors in practical applications. For example, these methods may not be able to fully consider all factors that may affect risk, or may not be able to provide accurate risk assessment results in certain specific situations.
[0005] Third, lack of unified assessment standards and norms: At present, there is a lack of unified assessment standards and norms in the field of risk assessment of hazardous chemicals. This may lead to different institutions or experts using different methods and standards when conducting risk assessments, resulting in significant differences and uncertainties in the assessment results.
[0006] IV. Lagging Technological Updates and Applications: With the continuous advancement of science and technology, new risk assessment technologies and methods are constantly emerging. However, due to various reasons, the application of these new technologies and methods in the hazardous chemicals industry may lag behind, which limits the accuracy and efficiency of risk assessment.
[0007] V. Lack of professional talent: Risk assessment of hazardous chemicals requires professional talent with specialized knowledge and skills. However, my country's talent pool in this area is currently relatively insufficient, which to some extent restricts the development and improvement of risk assessment work.
[0008] Improving the accuracy and efficiency of risk assessment for hazardous chemicals is a technical problem that needs to be solved. Summary of the Invention
[0009] The technical objective of this invention is to address the above-mentioned shortcomings by providing a risk assessment method and system for the hazardous chemicals industry, thereby solving the technical problem of how to improve the accuracy and efficiency of hazardous chemicals risk assessment.
[0010] In a first aspect, the present invention provides a risk assessment method for the hazardous chemicals industry, comprising the following steps:
[0011] Evaluation index system construction: Based on the definition of risk, a comprehensive risk assessment system for industry safety production is designed and constructed by selecting multi-dimensional evaluation indicators. The evaluation system follows the SMART principle.
[0012] Risk grading model construction: Construct a risk grading model, which is used to evaluate the actual scores of indicators and calculate the risk value of the industry;
[0013] Risk classification assessment: Based on predefined risk level classification rules, industries are ranked according to their risk values.
[0014] As a preferred approach, an industry-wide comprehensive risk assessment system for safe production is designed and constructed based on evaluation indicators from three dimensions: the probability of an accident (P), the severity of the consequences (L), and the sensitivity of the accident (S).
[0015] As a preferred option, the risk value calculation formula is as follows:
[0016]
[0017] Where R is the risk value, and D i Let D be the actual score of the i-th indicator. j D represents the actual score of the j-th indicator. k Let represent the actual score of the k-th indicator, n represent the number of accident probability indicators, m represent the number of consequence severity indicators, and e represent the number of accident sensitivity indicators.
[0018] As a preferred approach, the risk level classification rule follows the Pareto principle and is based on a predefined risk level classification rule, dividing the industry into four risk levels according to the industry's risk value.
[0019] Secondly, the present invention provides a risk assessment system for the hazardous chemicals industry, including an evaluation index system construction module, a risk classification model construction module, and a risk classification assessment module.
[0020] The evaluation index system construction module is used to perform the following: Based on the definition of risk, select multi-dimensional evaluation indicators to design and construct a comprehensive risk assessment system for industry safety production. The evaluation system follows the SMART principle.
[0021] The risk grading model building module is used to perform the following: build a risk grading model, which is used to evaluate the actual scores of indicators and calculate the risk value of the industry;
[0022] The risk grading and assessment module is used to perform the following: sorting industries based on predefined risk grading rules and their risk values.
[0023] As a preferred option, the evaluation index system construction module is used to design and construct a comprehensive risk assessment system for industry safety production from three dimensions: the probability of an accident occurring (P), the severity of the consequences (L), and the sensitivity of the accident (S).
[0024] As a preferred option, the risk value calculation formula is as follows:
[0025]
[0026] Where R is the risk value, and D i Let D be the actual score of the i-th indicator. j D represents the actual score of the j-th indicator. k Let represent the actual score of the k-th indicator, n represent the number of accident probability indicators, m represent the number of consequence severity indicators, and e represent the number of accident sensitivity indicators.
[0027] As a preferred approach, the risk level classification rule follows the Pareto principle and is based on a predefined risk level classification rule, dividing the industry into four risk levels according to the industry's risk value.
[0028] The risk assessment method and system for the hazardous chemicals industry of the present invention have the following advantages:
[0029] 1. It has brought significant benefits to the safety management of the hazardous chemicals industry, significantly improved the accuracy and efficiency of risk assessment, and enabled enterprises to grasp the risk situation more quickly and take corresponding preventive measures.
[0030] 2. It helps to discover and identify potential risks earlier, effectively preventing the expansion and deterioration of potential risks;
[0031] 3. It provides a scientific and reliable basis for enterprises' safety management and decision-making, reduces the probability and impact of accidents, and ensures the stable operation of enterprises and the safety of employees' lives. Attached Figure Description
[0032] To more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0033] The invention will be further described below with reference to the accompanying drawings.
[0034] Figure 1 Example 1 is a flowchart of a risk assessment method for the hazardous chemicals industry. Detailed Implementation
[0035] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, so that those skilled in the art can better understand and implement the present invention. However, the embodiments are not intended to limit the present invention. In the absence of conflict, the embodiments of the present invention and the technical features in the embodiments can be combined with each other.
[0036] This invention provides a method and system for risk assessment in the hazardous chemicals industry, which addresses the technical problem of how to improve the accuracy and efficiency of risk assessment for hazardous chemicals.
[0037] Example 1:
[0038] This invention provides a risk assessment method for the hazardous chemicals industry, comprising three steps: constructing an evaluation index system, constructing a risk classification model, and risk classification assessment.
[0039] Step S100: Construction of Evaluation Index System: Based on the definition of risk, select multi-dimensional evaluation indicators to design and construct a comprehensive risk evaluation system for industry safety production. The evaluation system follows the SMART principle.
[0040] In this embodiment, an industry-wide comprehensive risk assessment system for safe production is designed and constructed based on evaluation indicators from three dimensions: the probability of an accident (P), the severity of the consequences (L), and the sensitivity of the accident (S).
[0041] Step S200 Risk Classification Model Construction: Construct a risk classification model, which is used to evaluate the actual scores of indicators and calculate the risk value of the industry.
[0042] The formula for calculating the risk value is:
[0043]
[0044] Where R is the risk value, and D i Let D be the actual score of the i-th indicator. j D represents the actual score of the j-th indicator. k Let represent the actual score of the k-th indicator, n represent the number of accident probability indicators, m represent the number of consequence severity indicators, and e represent the number of accident sensitivity indicators.
[0045] Step S300 Risk Classification Assessment: Based on predefined risk level classification rules, sort industries according to their risk values.
[0046] The risk level classification rules follow the Pareto principle and are based on predefined risk level classification rules, dividing industries into four risk levels according to their risk values.
[0047] The risk value of each industry is calculated based on the risk classification model. The industries are then sorted from high to low according to their risk values, as shown in Table 1. The industries ranked in the top 10% are classified as Level 1 risk industries, the industries ranked in the top 10%-30% are classified as Level 2 risk industries, the industries ranked in the top 30%-60% are classified as Level 3 risk industries, and the industries ranked in the bottom 40% are classified as Level 4 risk industries.
[0048] Table 1. Risk Level Assessment
[0049] Industry Risk Classification Level 1 Level 2 Level 3 Level 4 Ranking by R value Top 10% 10%-30% 30%-60% The bottom 40%
[0050] The method in this embodiment collects relevant basic data, accident data, and current safety risk information of the hazardous chemicals industry through various means. After calculation using the comprehensive risk classification evaluation model for the hazardous chemicals industry, the method conducts an assessment based on the comprehensive risk classification standards for the hazardous chemicals industry, thereby obtaining the assessment result.
[0051] Example 2:
[0052] This invention provides a risk assessment system for the hazardous chemicals industry, comprising an evaluation index system construction module, a risk grading model construction module, and a risk grading assessment module.
[0053] The evaluation index system construction module is used to perform the following: Based on the definition of risk, select multi-dimensional evaluation indicators to design and construct a comprehensive risk evaluation system for industry safety production. The evaluation system follows the SMART principle.
[0054] In this embodiment, the module designs and constructs a comprehensive risk assessment system for industry safety production based on evaluation indicators from three dimensions: the probability of an accident occurring (P), the severity of the consequences (L), and the sensitivity of the accident (S).
[0055] The risk grading model building module is used to perform the following: build a risk grading model, which is used to evaluate the actual scores of indicators and calculate the risk value of the industry.
[0056] The formula for calculating the risk value is:
[0057]
[0058] Where R is the risk value, and D i Let D be the actual score of the i-th indicator. j D represents the actual score of the j-th indicator. k Let represent the actual score of the k-th indicator, n represent the number of accident probability indicators, m represent the number of consequence severity indicators, and e represent the number of accident sensitivity indicators.
[0059] The risk grading and assessment module is used to perform the following: sorting industries based on predefined risk grading rules and their risk values.
[0060] The risk level classification rules follow the Pareto principle and are based on predefined risk level classification rules, dividing industries into four risk levels according to their risk values.
[0061] The risk value of each industry is calculated based on the risk classification model. The industries are then ranked from highest to lowest risk value. The top 10% of industries are classified as Level 1 risk industries, the 10%-30% as Level 2 risk industries, the 30%-60% as Level 3 risk industries, and the bottom 40% as Level 4 risk industries.
[0062] The system in this embodiment can perform the method disclosed in Embodiment 1 to conduct industry-level assessment of hazardous chemicals.
[0063] The above provides a detailed description of the risk assessment method and system for the hazardous chemicals industry provided by this invention. Specific examples have been used to illustrate the principles and implementation methods of this invention. The descriptions of the above embodiments are only for the purpose of helping to understand the method and core ideas of this invention. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this invention. Therefore, the content of this specification should not be construed as a limitation of this invention.
Claims
1. A risk assessment method for the hazardous chemicals industry, characterized in that, Includes the following steps: Evaluation index system construction: Based on the definition of risk, a comprehensive risk assessment system for industry safety production is designed and constructed by selecting multi-dimensional evaluation indicators. The evaluation system follows the SMART principle. Risk grading model construction: Construct a risk grading model, which is used to evaluate the actual scores of indicators and calculate the risk value of the industry; Risk classification assessment: Based on predefined risk level classification rules, industries are ranked according to their risk values.
2. The risk assessment method for the hazardous chemicals industry according to claim 1, characterized in that, A comprehensive risk assessment system for industry safety production is designed and constructed based on evaluation indicators from three dimensions: probability of an accident (P), severity of consequences (L), and sensitivity of the accident (S).
3. The risk assessment method for the hazardous chemicals industry according to claim 1, characterized in that, The formula for calculating the risk value is: Where R is the risk value, and D i Let D be the actual score of the i-th indicator. j D represents the actual score of the j-th indicator. k Let represent the actual score of the k-th indicator, n represent the number of accident probability indicators, m represent the number of consequence severity indicators, and e represent the number of accident sensitivity indicators.
4. The risk assessment method for the hazardous chemicals industry according to claim 1, characterized in that, The risk level classification rules follow the Pareto principle and are based on predefined risk level classification rules, dividing industries into four risk levels according to their risk values.
5. A risk assessment system for the hazardous chemicals industry, characterized in that, It includes a module for constructing an evaluation indicator system, a module for constructing a risk classification model, and a module for risk classification assessment; The evaluation index system construction module is used to perform the following: Based on the definition of risk, select multi-dimensional evaluation indicators to design and construct a comprehensive risk assessment system for industry safety production. The evaluation system follows the SMART principle. The risk grading model building module is used to perform the following: build a risk grading model, which is used to evaluate the actual scores of indicators and calculate the risk value of the industry; The risk grading and assessment module is used to perform the following: sorting industries based on predefined risk grading rules and their risk values.
6. The risk assessment system for the hazardous chemicals industry according to claim 5, characterized in that, The evaluation index system construction module is used to design and construct a comprehensive risk assessment system for industry safety production from three dimensions: the probability of an accident occurring (P), the severity of the consequences (L), and the sensitivity of the accident (S).
7. The risk assessment system for the hazardous chemicals industry according to claim 5, characterized in that, The formula for calculating the risk value is: Where R is the risk value, and D i Let D be the actual score of the i-th indicator. j D represents the actual score of the j-th indicator. k Let represent the actual score of the k-th indicator, n represent the number of accident probability indicators, m represent the number of consequence severity indicators, and e represent the number of accident sensitivity indicators.
8. The risk assessment system for the hazardous chemicals industry according to claim 5, characterized in that, The risk level classification rules follow the Pareto principle and are based on predefined risk level classification rules, dividing industries into four risk levels according to their risk values.