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Principal component multiple regression analysis method for minimum oxygen concentration influence index in methane explosion

A technique of multiple regression analysis and influence index, applied in the field of methane explosion research, it can solve the problem of low minimum oxygen concentration, and achieve the effect of improving accuracy and eliminating multicollinearity.

Active Publication Date: 2019-04-09
XIAN UNIV OF SCI & TECH
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Problems solved by technology

However, these studies mainly focus on the impact of explosive characteristics and explosion limits, and few involve the minimum oxygen concentration.

Method used

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  • Principal component multiple regression analysis method for minimum oxygen concentration influence index in methane explosion
  • Principal component multiple regression analysis method for minimum oxygen concentration influence index in methane explosion
  • Principal component multiple regression analysis method for minimum oxygen concentration influence index in methane explosion

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Embodiment Construction

[0032] Such as figure 1 Shown, the principal component multiple regression analysis method of the methane explosion minimum oxygen concentration influence index of the present invention may further comprise the steps:

[0033] Step 1. Data collection and recording: Use a visual spherical airtight gas explosion experiment system to conduct explosion experiments on multi-component mixed flammable gases with different component concentrations and component distribution ratios, and measure multi-component mixed flammable gases with different volume fractions when adding different ratios The minimum oxygen concentration after the methane explosion and recorded in the data processor;

[0034] During specific implementation, the visualized spherical airtight gas explosion experimental system adopts the multi-window multifunctional gas and dust explosion suppression experimental system in the Chinese invention patent with application number 201610718097.9. The conditions of the explo...

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Abstract

The invention discloses a principal component multiple regression analysis method for a minimum oxygen concentration influence index in methane explosion. The method includes the following steps: I, data collection and recording: carrying out explosion experiments on multi-component mixed flammable gases with different component concentrations and component proportions by using a visual sphericalclosed gas explosion experimental system, determining the minimum oxygen concentration of methane explosion after adding different volume fractions of multi-component mixed flammable gases in different proportions, and recording the minimum oxygen concentration in a data processor; and II, data analysis and processing: enabling the data processor to adopt a principal component analysis method, establishing a multiple regression model, performing factor analysis on experimental data recorded in the step I, finding out the main factors affecting the minimum oxygen concentration of methane explosion, and obtaining the influence index of each single gas in the multi-component mixed flammable gases on the minimum oxygen concentration of methane explosion at different concentrations. The schemeof the invention eliminates multi-collinearity and improves the accuracy and reliability of the regression model.

Description

technical field [0001] The invention belongs to the technical field of methane explosion research, and in particular relates to a principal component multiple regression analysis method of the influence index of the minimum oxygen concentration of methane explosion. Background technique [0002] Sufficient oxygen content is one of the three necessary conditions for combustion and explosion. The minimum oxygen concentration (some researchers also call it the maximum allowable oxygen content) refers to the minimum oxygen concentration required for the flammable gas to maintain combustion or explosion at a certain concentration. In safety engineering, the method of filling the system with inert gas is often used to control the oxygen content in a certain concentration of flammable gas mixture, so that it is outside the minimum oxygen concentration and oxygen volume percentage, so as to reduce the possibility of explosion accidents. Many industrial production occasions regard t...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N33/22
Inventor 罗振敏苏彬李睿康刘博王秋红王涛康凯安亚飞
Owner XIAN UNIV OF SCI & TECH
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