Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Method for judging gas abnormality by utilizing gas desorption quantity characteristics

A technology of desorption amount and gas, which is applied in the field of gas anomaly identification, can solve the problems of insufficient accuracy, limited application range, and high input cost, and achieve the effects of accurate identification, wide application range, and low input cost

Active Publication Date: 2020-09-01
CHINA COAL TECH & ENG GRP CHONGQING RES INST CO LTD
View PDF6 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, there are many methods for identifying the abnormality of gas gushing from the working face, but some of these methods are not accurate enough, their application range is limited, and some are difficult to implement, and the input cost is relatively high

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method for judging gas abnormality by utilizing gas desorption quantity characteristics

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0031] The present invention is further described below in conjunction with the accompanying drawings of the description, as shown in the figure:

[0032] The method for judging gas anomalies using gas desorption characteristics of the present invention comprises the following steps:

[0033] S1. Determine the maximum gas desorption variation Q in k minutes in the jth shift j,k Ratio W to the total amount of gas gushing out of shift j j,k ; wherein, the N·X j,ave is the total amount of gas gushing out of the jth shift, N is the total number of minutes of the shift, X j,ave is the average gas emission concentration per minute of the jth shift, and j is the shift number;

[0034] S2. Determine the maximum gas desorption variation Q in m minutes in the jth shift j,m Ratio W to the total amount of gas gushing out of shift j j,m ; wherein, the

[0035] S3. Determine the maximum gas desorption variation Q in k minutes in the jth shift j,k The maximum gas desorption variat...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a method for judging gas abnormality by utilizing gas desorption quantity characteristics. The method comprises the following steps: S1, determining a ratio W<j,k> of the maximum gas desorption variable quantity to the total gas emission quantity in k minutes; S2, determining the ratio W<j,m> of the maximum gas desorption variable quantity to the total gas emission quantityin m minutes; S3, determining the ratio S<j,k,m> of the maximum gas desorption variable quantity in k minutes to the maximum gas desorption variable quantity in m minutes; s4, determining the ratio T<j,k,m> of the maximum value in the k-minute moving mean value sequence to the maximum value in the m-minute moving mean value sequence; s5, if the total gas emission amount does not tend to 0, entering the next step; s6, if W<j,k> does not tend to 0, or W<j,m> does not tend to 0, or S<j,k,m> does not tend to 1, or T<j,k,m> does not tend to 1, entering the next step; and S7, if at least one of W<j,k>, W<j,m>, S<j,k,m>, T<j,k> and m is large, gas emission being abnormal. According to the method for judging the gas abnormality by utilizing the gas desorption amount characteristics, whether gas emission is abnormal or not can be accurately judged, the judgment effect is good, the application range is wide, and the input cost is low.

Description

technical field [0001] The invention relates to the field of gas gushing, in particular to a method for judging abnormal gas by using gas desorption characteristics. Background technique [0002] The coal sample is in the original coal body. When the gas pressure of the coal sample is equal to the gas pressure of the original coal body, the free gas and the adsorbed gas in the coal sample are in a dynamic equilibrium state. Once this equilibrium state is destroyed, the gas adsorbed in the coal When the gas begins to desorb, the gas will be released, and the phenomenon of gas gushing will appear; among them, the amount of gas gushing has an important impact on the mining of the mine, especially judging whether the gas gushing is abnormal is of great importance to the safe production of the mine. significance. [0003] At present, there are many methods for identifying the abnormality of gas gushing from the working face, but some of these methods are not accurate enough, the...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): G06Q10/04G06Q50/02G08B21/14G16Y10/20G16Y20/10G16Y40/10G16Y40/20G16Y40/50
CPCG06Q10/04G06Q50/02G08B21/14G16Y10/20G16Y20/10G16Y40/10G16Y40/20G16Y40/50Y02A50/20
Inventor 赵旭生文光才康建宁邹云龙张庆华邓敢博牟景珊徐雪战蒲阳刘文杰程晓阳覃木广岳俊宋志强闫凯
Owner CHINA COAL TECH & ENG GRP CHONGQING RES INST CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com