CN-122021143-A - Method and system for deducing situation of explosion accident in chemical industry park

CN122021143ACN 122021143 ACN122021143 ACN 122021143ACN-122021143-A

Abstract

The embodiment of the application discloses a method and a system for deducing the situation of an explosion accident in a chemical industry park, and relates to the technical field of computer data processing. The method comprises the steps of constructing an explosion situation deduction database in advance based on simulation software, acquiring current explosion scene parameters of a chemical industry park in real time, determining explosion accident data, gas leakage data and probability deduction result data corresponding to the current explosion scene parameters from the constructed explosion situation deduction database based on the current explosion scene parameters, and performing visual display based on the explosion accident data, the gas leakage data and the probability deduction result data, so that accuracy of deduction results can be improved. The method is suitable for the situation deduction scene of the explosion accident in the chemical industry park.

Inventors

ZHOU ZHENGQING
HE SIYI
ZHAO HUANJUAN
JIANG HUILING
BAI ZHIMING
ZHOU LIANG
ZHAO WENWEN
LI KUNPENG

Assignees

北京科技大学

Dates

Publication Date: 20260512
Application Date: 20260120

Claims (10)

1. The method for deducing the situation of the explosion accident in the chemical industry park is characterized by comprising the following steps: Pre-constructing an explosion event deduction database based on simulation software; Acquiring current explosion scene parameters of a chemical industry park in real time; Based on the current explosion scene parameters, determining explosion accident data, gas leakage data and probability deduction result data corresponding to the current explosion scene parameters from a pre-constructed explosion event deduction database; And carrying out visual display based on the explosion accident data, the gas leakage data and the probability deduction result data.
2. The method for deducing the situation of explosion accident in chemical industry park according to claim 1, wherein the construction of the deducing database of explosion situation based on simulation software comprises: obtaining geographic data and building data of a chemical industry park, and constructing a three-dimensional finite element model; based on the three-dimensional finite element model, utilizing finite element analysis software to perform explosion simulation calculation and constructing an explosion accident database; Based on the explosion accident database, performing gas leakage simulation calculation by using fluid dynamics software to construct a gas leakage database; constructing a dynamic Bayesian network, taking data in the explosion accident database and the gas leakage database as input, and carrying out explosion accident probability reasoning to obtain a probability deduction result database; and carrying out association storage on the explosion result database, the gas leakage data and the probability deduction result database to construct an explosion event deduction database.
3. The method for deducing the situation of explosion accident in chemical industry park according to claim 2, wherein the constructing the database of explosion accident by utilizing finite element analysis software to perform simulation calculation of explosion simulation based on the three-dimensional finite element model comprises the following steps: importing the three-dimensional finite element model into finite element analysis software, setting explosion scene parameters, material model parameters and boundary conditions, and performing explosion simulation calculation to obtain a first simulation result; analyzing the first simulation result, and identifying the damage condition of the park building, the damage state of equipment and the range of explosion shock waves; Determining leakage source information based on the building damage condition and the equipment damage state, and dividing first safety areas with different damage levels according to the preset correspondence between the explosion shock waves and the human body damage degree based on the explosion shock wave range; constructing an explosion accident database comprising the explosion scene parameters, the building damage condition, the equipment damage state, the explosion shock wave range, the leakage source information and the first safety area.
4. The method for deducing the situation of explosion accident in chemical industry park according to claim 2, wherein the constructing the gas leakage database based on the explosion accident database by using fluid dynamics software to perform gas leakage simulation calculation comprises the following steps: importing the three-dimensional finite element model into fluid dynamics software, establishing a calculation domain and generating a calculation grid; setting leakage source parameters and boundary conditions based on the explosion accident database, and carrying out gas leakage numerical simulation calculation by combining environmental data to obtain a second simulation result; Analyzing the second simulation result to obtain a gas concentration cloud picture and a distribution cloud picture, and dividing second safety areas with different safety levels based on preset concentration thresholds of different gases; And constructing a gas leakage database comprising the environmental data, the gas concentration cloud picture, the distribution cloud picture and the second safety area.
5. The method for deducing the situation of explosion accident in chemical industry park according to claim 2, wherein the constructing a dynamic bayesian network takes the data in the explosion accident database and the gas leakage database as input to carry out the probability reasoning of the explosion accident to obtain a probability deduction result database, and comprises the following steps: Constructing a network node for representing an explosion deduction result, wherein the node is used for representing a variable in an explosion evolution process; Establishing directed causal relationship edges between the nodes to form a network topology structure representing causal relationships between variables; Defining a conditional probability table for each of the nodes; and carrying out explosion accident probability reasoning based on the network topological structure, the conditional probability table and the input data in the explosion accident database and the gas leakage database to obtain a probability deduction result database containing early warning information and a decision scheme.
6. The method for deducing the situation of explosion incidents in a chemical industry park according to claim 5, wherein the nodes comprise father nodes, intermediate nodes and child nodes, the father nodes comprise at least explosion source information, explosion equivalent and leakage gas characteristics, the intermediate nodes comprise at least equipment damage conditions, gas leakage rates, wind speeds, wind directions and emergency response delays, and the child nodes comprise at least secondary explosion probability and dangerous area expansion trend.
7. The method for deducing the situation of explosion accident in chemical industry park according to claim 1, wherein the current explosion scene parameters at least comprise current explosion source information, current leakage gas characteristics, current wind direction and current wind speed.
8. A chemical industry park explosion incident situation deduction system, the system comprising: the preprocessing module is used for constructing an explosion event deduction database in advance based on simulation software; the first acquisition module is used for acquiring current explosion scene parameters of the chemical industry park in real time; The second acquisition module is used for determining explosion accident data, gas leakage data and probability deduction result information corresponding to the current explosion scene parameters from the pre-constructed explosion event deduction database based on the current explosion scene parameters; and the explosion event deduction module is used for carrying out visual display based on the explosion accident data, the gas leakage data and the probability deduction result information.
9. The system for deducing the situation of an explosion accident in a chemical industry park according to claim 8, wherein the preprocessing module is specifically configured to construct an explosion situation deduction database in advance based on simulation software, and comprises: obtaining geographic data and building data of a chemical industry park, and constructing a three-dimensional finite element model; based on the three-dimensional finite element model, utilizing finite element analysis software to perform explosion simulation calculation and constructing an explosion accident database; Based on the explosion accident database, performing gas leakage simulation calculation by using fluid dynamics software to construct a gas leakage database; constructing a dynamic Bayesian network, taking data in the explosion accident database and the gas leakage database as input, and carrying out explosion accident probability reasoning to obtain a probability deduction result database; and carrying out association storage on the explosion result database, the gas leakage data and the probability deduction result database to construct an explosion event deduction database.
10. The system of claim 8, wherein the current explosion scene parameters include at least current explosion source information, current leakage gas characteristics, current wind direction and current wind speed.

Description

Method and system for deducing situation of explosion accident in chemical industry park Technical Field The application relates to the technical field of computer data processing, in particular to a method and a system for deducing the situation of an explosion accident in a chemical industry park. Background The chemical industry park is a gathering area of the high-risk energy chemical industry, and the safety production is important. The initial explosion accident not only causes instantaneous damage, but also is easier to cause chain reaction, so that dangerous chemical storage and transportation facilities are broken, and disastrous gas leakage is caused, thereby causing secondary accidents such as secondary explosion, poisoning and the like. Most of the existing chemical industry park explosion accident simulation methods utilize a prediction model to conduct deduction prediction after the accident occurs, so that the deviation between a deduction result and an actual situation is large. Disclosure of Invention In view of the above, the embodiment of the application provides a method and a system for deducing the situation of an explosion accident in a chemical industry park, which can improve the accuracy of a deduced result. The embodiment of the application provides a chemical industry park explosion accident situation deduction method, which comprises the steps of constructing an explosion situation deduction database in advance based on simulation software, acquiring current explosion scene parameters of a chemical industry park in real time, determining explosion accident data, gas leakage data and probability deduction result data corresponding to the current explosion scene parameters from the pre-constructed explosion situation deduction database based on the current explosion scene parameters, and carrying out visual display based on the explosion accident data, the gas leakage data and the probability deduction result data. According to one embodiment of the application, the simulation software-based pre-construction of an explosion event deduction database comprises the steps of obtaining geographic data and building data of a chemical industry park, constructing a three-dimensional finite element model, conducting explosion simulation calculation by utilizing finite element analysis software based on the three-dimensional finite element model, constructing an explosion event database, conducting gas leakage simulation calculation by utilizing fluid dynamics software based on the explosion event database, constructing a gas leakage database, constructing a dynamic Bayesian network, conducting explosion event probability reasoning by taking the explosion event database and data in the gas leakage database as input to obtain a probability deduction result database, and storing the explosion result database, the gas leakage data and the probability deduction result database in a correlated mode to construct the explosion event deduction database. According to one embodiment of the application, the method for constructing the explosion accident database by utilizing the finite element analysis software to carry out explosion simulation calculation based on the three-dimensional finite element model comprises the steps of importing the three-dimensional finite element model into the finite element analysis software, setting explosion scene parameters, material model parameters and boundary conditions, carrying out explosion simulation calculation to obtain a first simulation result, analyzing the first simulation result, identifying a building damage condition, an equipment damage state and an explosion shock wave range of a park, determining leakage source information based on the building damage condition and the equipment damage state, dividing a first safety area with different damage levels according to the preset correspondence between explosion shock waves and human body damage degrees based on the explosion shock wave range, and constructing the explosion accident database comprising the explosion scene parameters, the building damage condition, the equipment damage state, the explosion shock wave range, the leakage source information and the first safety area. According to one embodiment of the application, the method for constructing the gas leakage database by utilizing the fluid dynamics software to perform gas leakage simulation calculation comprises the steps of guiding the three-dimensional finite element model into the fluid dynamics software, establishing a calculation domain and generating a calculation grid, setting leakage source parameters and boundary conditions based on the explosion accident database, performing gas leakage numerical simulation calculation in combination with environmental data to obtain a second simulation result, analyzing the second simulation result to obtain a gas concentration cloud image and a distribution cloud image, dividing second safety area