Dangerous gas influence comprehensive evaluation method based on human body safety control target

Abstract

The invention belongs to the technical field of gas safety monitoring, and particularly relates to a dangerous gas influence comprehensive evaluation method based on a human body safety control target, and the method comprises the following steps: S1, determining the types and concentration grading limit values of gases needing to participate in evaluation according to the detection requirements of the environment and the standard of toxic and harmful gases; s2, calculating the efficacy coefficient score of each factor by using an efficacy coefficient method; s3, determining the comprehensive danger coefficient of each gas factor through the interaction between evaluation factors; s4, calculating a risk evaluation index of a single gas factor; and S5, comprehensively evaluating the environmental danger degree by using the radar map. According to the method, the concentration of various hazardous gases is comprehensively evaluated by using an efficacy coefficient method in combination with the combined action of toxicants, and an evaluation result is visually displayed by using a radar map, so that the influence of the hazardous gases on the human body safety can be comprehensively and accurately evaluated, and powerful support is provided for environmental monitoring and pollution prevention and control.

Description

Technical Field

[0001] The present invention belongs to the technical field of gas safety monitoring, and in particular relates to a comprehensive evaluation method for the impact of hazardous gases based on human safety control targets. Background Art

[0002] Toxic and harmful gases are types of gases that pose a threat to human safety, including two major categories: flammable gases and toxic gases. Toxic gases can be divided into three categories based on their different mechanisms of action on the human body: irritating gases, asphyxiating gases, and organic gases that cause acute poisoning. With the development of industrialization and urbanization, toxic and harmful gases may exist in many fields such as industrial production, transportation, construction, and experimental research. Once their emissions exceed the safety threshold, they may cause immeasurable damage to human health and safety. Therefore, how to accurately judge the degree of danger of the gas environment and issue timely and effective warnings has become a top priority in maintaining human life, health, and safety.

[0003] my country has set strict concentration limits and alarm thresholds for various toxic and hazardous gases to regulate their emission and use. At present, most methods for evaluating gas environments focus on real-time concentration detection of gases, and by comparing established standards, the alarm status of various gases is obtained, and the highest alarm level is selected as the final warning result. However, this method only relies on the data of a single gas to represent the situation of the entire environment, and fails to fully consider the possible combined effects of different toxic and hazardous gases and their comprehensive harm to the human body. Summary of the invention

[0004] The purpose of the present invention is to provide a comprehensive evaluation method for the impact of hazardous gases based on human safety control objectives to solve the problems existing in the background technology.

[0005] To achieve the above object, the present invention provides the following technical solution: a comprehensive evaluation method for the impact of hazardous gases based on human safety control objectives, comprising the following steps:

[0006] S1: Determine the types of gases that need to be evaluated and their concentration limits based on the environmental testing requirements and toxic and hazardous gas standards;

[0007] S2: Use the efficacy coefficient method to calculate the efficacy coefficient score of each factor;

[0008] S3: Determine the comprehensive risk factor of each gas factor by evaluating the interaction between factors;

[0009] S4: Calculate the risk assessment index of a single gas factor;

[0010] S5: Use radar charts to comprehensively evaluate the degree of environmental risk.

[0011] Preferably, the S2 includes:

[0012] (1) Determine the standard value table and correspond the concentration classification limits to the standard coefficients one by one:

[0013]

[0014] Considering that the concentration values ​​of each indicator may differ too much, the use of the power coefficient method can eliminate the influence of the data dimension, so that data of different dimensions can be compared on the same scale.

[0015] (2) Calculate the efficacy coefficient score for a single gas factor i:

[0016]

[0017] Among them, f i is the efficiency coefficient score of gas factor i, C i , C iL , C iH They are the actual concentration value, the current concentration value, and the upper concentration value, respectively. iL d iH They are the standard coefficient for this level and the standard coefficient for the upper level respectively.

[0018] Preferably, in S3, the action coefficient x is determined by the combined action of the toxicity between the gas factor i and the gas factor j. ij When it has an enhancing effect on toxicity, the effect coefficient is greater than 1; when it has a weakening effect, the effect coefficient is less than 1; when it has no effect, the effect coefficient is equal to 1; the following table can be obtained:

[0019]

[0020] where x ij =x ji , for gas factor i, calculate the comprehensive risk factor:

[0021]

[0022] In the formula, x i is the comprehensive risk factor of gas factor i, x ij is the interaction coefficient between gas factor i and gas factor j, and n is the number of gas factors.

[0023] Calculate the comprehensive risk factor: Consider the impact of the combined effects between toxic and harmful gases on toxicity, which may enhance or weaken the toxicity; the combined effects between different toxic and harmful gases are very complex, and this method can be used to simplify it.

[0024] Preferably, in S4,

[0025] The risk assessment index of a single gas factor is: Vi =x i ×f i

[0026] Where V i is the hazard evaluation index of gas factor i, x i is the comprehensive risk factor of gas factor i, f i is the efficiency coefficient score of gas factor i.

[0027] Combining the actual concentration with the hazard assessment coefficient, the actual hazard situation of the indicator can be obtained.

[0028] Preferably, in S5,

[0029] (1) With the gas type as the coordinate axis, the hazard assessment index is placed in the graph, and the points are connected to form a polygon to intuitively display the degree of environmental hazard;

[0030] (2) Calculate the area of ​​the radar chart and obtain the final comprehensive evaluation results:

[0031] According to the geometric characteristics of the radar chart, calculate the area of ​​the radar chart:

[0032] The area calculation of an n-gon can be regarded as the sum of the areas of n triangles. The formula is:

[0033]

[0034] Where S is the area, For gas x i The risk assessment index, For gas y i The risk assessment index α is and The angle between the two angles is α, sinα is the sine value of the angle α;

[0035] The area value is taken as the final comprehensive evaluation result. The larger the area, the more serious the comprehensive impact of hazardous gases in the evaluated area on human safety.

[0036] Using radar charts to visualize multiple variables on the same plane can intuitively describe the situation of each indicator itself and the overall situation of the environment; by calculating the area, the degree of danger can be quantified to obtain the degree of danger of the environment.

[0037] The beneficial effects of the present invention are as follows: the present invention uses the efficacy coefficient method, combined with the combined effects of poisons, to comprehensively evaluate the concentrations of a variety of hazardous gases, and uses radar charts to intuitively display the evaluation results, which can comprehensively and accurately assess the impact of hazardous gases on human safety and provide strong support for environmental monitoring and pollution prevention and control. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 This is a radar chart taking six gas factors as an example in this embodiment. DETAILED DESCRIPTION

[0039] The specific implementation of the present invention is described in detail below with reference to the accompanying drawings and preferred embodiments.

[0040] A comprehensive evaluation method for the impact of hazardous gases based on human safety control objectives comprises the following steps:

[0041] S1: Determine the types of gases that need to be evaluated and their concentration limits based on the environmental testing requirements and toxic and hazardous gas standards;

[0042] S2: Use the efficacy coefficient method to calculate the efficacy coefficient score of each factor;

[0043] (1) Determine the standard value table and correspond the concentration classification limits to the standard coefficients one by one:

[0044]

[0045] (2) Calculate the efficacy coefficient score for a single gas factor i:

[0046]

[0047] Among them, f i is the efficiency coefficient score of gas factor i, C i , C iL , C iH They are the actual concentration value, the current concentration value, and the upper concentration value, respectively. iL d iH They are the standard coefficient for this level and the standard coefficient for the upper level respectively.

[0048] S3: Determine the comprehensive risk factor of each gas factor by evaluating the interaction between factors;

[0049] The action coefficient x is determined by the combined toxicity of gas factor i and gas factor j. ij When it has an enhancing effect on toxicity, the effect coefficient is greater than 1; when it has a weakening effect, the effect coefficient is less than 1; when it has no effect, the effect coefficient is equal to 1; the following table can be obtained:

[0050]

[0051]

[0052] where x ij =x ji , for gas factor i, calculate the comprehensive risk factor:

[0053]

[0054] In the formula, x i is the comprehensive risk factor of gas factor i, x ij is the interaction coefficient between gas factor i and gas factor j, and n is the number of gas factors.

[0055] S4: Calculate the risk assessment index of a single gas factor;

[0056] The risk assessment index of a single gas factor is: V i =x i ×f i

[0057] Where V i is the hazard evaluation index of gas factor i, x i is the comprehensive risk factor of gas factor i, f i is the efficiency coefficient score of gas factor i

[0058] S5: Use radar charts to comprehensively evaluate the degree of environmental danger;

[0059] (1) Draw a radar chart, with the gas type as the coordinate axis, put the hazard assessment index into the chart, connect the points to form a polygon, and intuitively display the degree of environmental hazard;

[0060] (2) Calculate the area of ​​the radar chart and obtain the final comprehensive evaluation results:

[0061] According to the geometric characteristics of the radar chart, calculate the area of ​​the radar chart:

[0062] The area calculation of an n-gon can be regarded as the sum of the areas of n triangles. The formula is:

[0063]

[0064] Where S is the area, For gas x i The risk assessment index, For gas y i The risk assessment index α is and The angle between the two angles is α, sinα is the sine value of the angle α;

[0065] The area value is taken as the final comprehensive evaluation result. The larger the area, the more serious the comprehensive impact of hazardous gases in the evaluated area on human safety.

[0066] It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention, and these improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. A comprehensive evaluation method for the impact of hazardous gases based on human safety control objectives, characterized by: The following steps are involved: S1: Determine the types of gases that need to be evaluated and their concentration limits based on the environmental testing requirements and toxic and hazardous gas standards; S2: Use the efficacy coefficient method to calculate the efficacy coefficient score of each factor; S3: Determine the comprehensive risk factor of each gas factor by evaluating the interaction between factors; S4: Calculate the risk assessment index of a single gas factor; S5: Use radar charts to comprehensively evaluate the degree of environmental risk.

2. The method for comprehensive evaluation of the impact of hazardous gases based on human safety control objectives according to claim 1 is characterized in that: The S2 includes: (1) Determine the standard value table and correspond the concentration classification limits to the standard coefficients one by one: (2) Calculate the efficacy coefficient score for a single gas factor i: Among them, f i is the efficiency coefficient score of gas factor i, C i , C iL , C iH They are the actual concentration value, the current concentration value, and the upper concentration value, respectively. iL ,d iH They are the standard coefficient for this level and the standard coefficient for the upper level respectively.

3. The method for comprehensive evaluation of the impact of hazardous gases based on human safety control objectives according to claim 1 is characterized in that: In S3, the action coefficient x is determined by the combined toxicity of gas factor i and gas factor j. ij When it has an enhancing effect on toxicity, the effect coefficient is greater than 1; when it has a weakening effect, the effect coefficient is less than 1; when it has no effect, the effect coefficient is equal to 1; the following table can be obtained: where x ij =x ji , for gas factor i, calculate the comprehensive risk factor: In the formula, x i is the comprehensive risk factor of gas factor i, x ij is the interaction coefficient between gas factor i and gas factor j, and n is the number of gas factors.

4. The method for comprehensive evaluation of the impact of hazardous gases based on human safety control objectives according to claim 1 is characterized in that: In S4, The risk assessment index of a single gas factor is: V i =x i ×f i Where V i is the hazard evaluation index of gas factor i, x i is the comprehensive risk factor of gas factor i, f i is the efficiency coefficient score of gas factor i.

5. The method for comprehensive evaluation of the impact of hazardous gases based on human safety control objectives according to claim 1 is characterized in that: In S5, (1) the hazard assessment index is placed in the graph with the gas type as the coordinate axis, and the points are connected to form a polygon to intuitively display the degree of environmental hazard; (2) Calculate the area of ​​the radar chart and obtain the final comprehensive evaluation results: According to the geometric characteristics of the radar chart, calculate the area of ​​the radar chart: The area calculation of an n-gon can be regarded as the sum of the areas of n triangles. The formula is: Where S is the area, For gas x i The risk assessment index, For gas y i The risk assessment index α is and The angle between the two angles is α, sinα is the sine value of the angle α; The area value is taken as the final comprehensive evaluation result. The larger the area, the more serious the comprehensive impact of hazardous gases in the evaluated area on human safety.

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