Method for determining explosion limit of multicomponent mixed gas

A technology of mixed gas and explosion limit, used in material inspection products, fuel testing and other directions, can solve the problems of narrow application scope, cumbersome use, high risk, etc., and achieve the effect of wide application scope, simple method and reduced experimental cost.

Active Publication Date: 2012-07-25
NANJING UNIV OF TECH
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Problems solved by technology

[0008] The purpose of the present invention is to mainly rely on experiments and predictions to obtain the explosion limit of multi-component mixed gases at present, while the experimental method has the disadvantages of high cost, long cycle and high risk, and the existing prediction methods are cumbersome to use and poor in accuracy. In order to solve p

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  • Method for determining explosion limit of multicomponent mixed gas
  • Method for determining explosion limit of multicomponent mixed gas
  • Method for determining explosion limit of multicomponent mixed gas

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Embodiment Construction

[0040] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0041] Such as figure 1 , 2 shown.

[0042] A method for determining the explosion limit of a multi-component gas mixture, which mainly uses physical and chemical parameters and component distribution ratios for prediction, and the specific steps can be subdivided into the following eight steps:

[0043] (1) Collection of multivariate mixed gas modeling samples and their explosion limit data:

[0044] Select hydrogen, carbon monoxide, alkanes, alkenes, alkynes and other industrially used combustible chemical gases, and form a series of multivariate mixed gas sample sets according to certain statistical standards and property standards. For the multivariate gas mixture in the sample set, collect the corresponding explosion limit data. There are three main ways of data collection: experimental measurement, various authoritative manuals and literature....

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Abstract

The invention relates to a method for determining explosion limit of multicomponent mixed gas. The conventional physical and chemical parameters and the mixture ratio of pure gas are adopted to build corresponding explosion limit prediction models aiming at different classes of multicomponent mixed gas, and the built models are utilized to predict the explosion limit of unknown mixed gas. The method comprises the following steps of: 1, collection of modeling samples of the multicomponent mixed gas and the explosion limit data of the multicomponent mixed gas; 2, classified processing of the modeling samples of the multicomponent mixed gas; 3, determination of the physical and chemical parameters and collection of the data; 4, building of the prediction models; 5, confirmation and correction of the models; 6, and application of the prediction models. The explosion limit is an important indicator for measuring the explosion risk of the mixed gas, and a predicting method for researching the explosion limit of the multicomponent mixed gas has importance for the prediction and monitor of the gas explosion. The method is sample and has high prediction accuracy, and the invention provides a simple, fast, accurate and reliable predicting method for predicting the explosion limit of the multicomponent mixed gas.

Description

[0001] technical field [0002] The present invention relates to a method for the explosion limit of multi-component mixed gas, especially a method for determining the explosion limit of unknown multi-component mixed gas through existing manuals, databases or data of conventional physical and chemical parameters of a single gas detected, specifically A method for determining the explosion limit of multi-element mixed gas by using physical and chemical parameters and component distribution ratio. Background technique [0003] With the continuous development of the chemical industry and the diversification of chemical products, various chemical products have been widely used in various sectors of the national economy. At present, more than 30 million chemical substances have been discovered and synthesized, among which there are more than 80,000 chemical products used by human beings daily, and this number is increasing at a rate of nearly 1,000 each year. Among the many chem...

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Application Information

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IPC IPC(8): G01N33/22
Inventor 蒋军成潘勇李国梁崔益虎倪磊张尹炎
Owner NANJING UNIV OF TECH
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