Three-dimensional simulation method and emergency evacuation method for gas leakage and diffusion

A simulation method and gas diffusion technology, applied in 3D modeling, special data processing applications, image data processing, etc., can solve problems such as gas leakage, and achieve the effect of fast and efficient process.

Active Publication Date: 2014-10-08
CHINA ACAD OF SAFETY SCI & TECH
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Problems solved by technology

[0005] The present invention provides a three-dimensional simulation method for gas leakage and diffusion to solve the above-mentioned problems existing in the existing three-dimensional simulation system

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  • Three-dimensional simulation method and emergency evacuation method for gas leakage and diffusion
  • Three-dimensional simulation method and emergency evacuation method for gas leakage and diffusion

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Embodiment Construction

[0025] The invention provides a three-dimensional simulation method for gas leakage and diffusion, where the gas is generally poisonous and harmful gas. In order to prevent the toxic and harmful gas from affecting and harming the surrounding organisms during the diffusion, it is necessary to quickly obtain the gas leakage source and its surrounding location The index of gas diffusion at the location is convenient for the follow-up treatment of gas leakage and the formulation of personnel escape strategies to minimize damage.

[0026] The invention provides a three-dimensional simulation method for gas leakage and diffusion, which includes the following steps.

[0027] Step S101, acquiring location information of a leakage source.

[0028] The location information of the leakage source includes the terrain and location coordinates of the leakage source, and the terrain includes simple terrain and complex terrain. This method is used to simulate the diffusion of gas so that the...

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Abstract

The invention discloses a three-dimensional simulation method and an emergency evacuation method for gas leakage and diffusion. The three-dimensional simulation method includes acquiring location information of a leakage source; according to the location of the leakage source, acquiring meteorological real-time data and leakage source strong data measured form the periphery; comparing and querying the meteorological real-time data with wind-field query data in a wind field database; acquiring wind field data of the leakage source from the wind field database; and introducing the wind field data and the leakage source strong data into a gas diffusion formula to calculate wind file data of the periphery of the leakage source. According to the three-dimensional simulation method, by the wind field database, the wind field data of the periphery of the leakage source is rapidly and efficiently queried and acquired, and the conventional step of wind field calculation is omitted, thus three-dimensional simulation field data are acquired within the shortest time, and requirements of chemical industrial parks and industrial enterprises for emergency systems are met in the new situation.

Description

technical field [0001] The invention relates to the field of gas diffusion models, in particular to a three-dimensional simulation method for gas leakage and diffusion, and also relates to an emergency evacuation method for gas leakage. Background technique [0002] At present, the general smoke plume diffusion mode is used in the emergency mode of toxic gas diffusion. The empirical model uses mathematical formulas to approximate the simulation results. This model uses mathematical methods to fit similar phenomena that have been tested. However, there are vastly different actual situations in reality, so the difference is large, which greatly affects the performance of emergency diffusion simulation in the emergency system. For example, in the case of a sudden change in wind direction, how the gas diffuses, there are a large number of high-rise buildings on the ground, the wind flow field is unstable, if the range of gas diffusion is determined, etc., the plume diffusion mod...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50G06T17/00
Inventor 席学军
Owner CHINA ACAD OF SAFETY SCI & TECH
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