CN114964661B - Underground coal mine spontaneous combustion fire beam tube monitoring system based on artificial intelligence - Google Patents
Underground coal mine spontaneous combustion fire beam tube monitoring system based on artificial intelligence Download PDFInfo
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- 238000013473 artificial intelligence Methods 0.000 title claims abstract description 14
- 239000000567 combustion gas Substances 0.000 claims abstract description 85
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- G01M3/00—Investigating fluid-tightness of structures
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- G01M3/2807—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds for pipes
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Abstract
The invention discloses an underground coal mine spontaneous combustion fire beam tube monitoring system based on artificial intelligence, which is characterized in that through monitoring the environmental parameter values of each appointed monitoring subarea in a target underground coal mine area, the spontaneous combustion gas safety influence weight index of each appointed monitoring subarea is analyzed, and corresponding treatment measures are carried out, so that the safety of the underground coal mine area is analyzed in real time, a safe working environment is further provided for underground operators, meanwhile, the historical environmental parameters of each appointed monitoring subarea monitored in a preset historical period are extracted, the spontaneous combustion fire risk assessment coefficient of each appointed monitoring subarea is analyzed, and corresponding treatment is carried out, so that the spontaneous combustion fire risk assessment accuracy of the underground coal mine area is improved, early warning of spontaneous combustion fire of the coal mine can be timely and accurately sent out, the occurrence of spontaneous combustion fire or even explosion accidents of the underground coal mine is effectively prevented, and the life safety of the underground operators is further ensured.
Description
Technical Field
The invention relates to the field of underground coal mine spontaneous combustion fire monitoring, in particular to an underground coal mine spontaneous combustion fire beam tube monitoring system based on artificial intelligence.
Background
With the progress of technology, underground mine disaster accidents continuously decline, but underground coal mine spontaneous combustion fires still pose a threat to coal mine safety exploitation. Therefore, the monitoring and prevention of spontaneous combustion fire of the underground coal mine are very necessary, the safe exploitation of the underground coal mine is ensured, and a safe working environment is provided for underground operators.
At present, most coal mine enterprises have carried out monitoring means mainly based on spontaneous combustion gas concentration analysis on underground coal mine spontaneous combustion fire disasters, and the main application technology is a beam tube chromatographic monitoring technology. However, the existing beam tube chromatographic monitoring technology also exposes a lot of defects and shortcomings in the actual use process, and the main defects are as follows:
1. the method comprises the steps of paving a beam tube underground, pumping gas in an underground coal mine area to the ground by using a ground sucking pump, and monitoring by using a gas chromatograph, wherein the paving length of the beam tube is too long, so that the real-time property of collected gas data is poor, a certain response delay is provided for the occurrence of spontaneous combustion fire disasters of the underground coal mine, and the beam tube is easy to leak, block and the like due to the very complex and severe underground coal mine environment, so that the reliability and the accuracy of monitoring analysis results are reduced;
2. the existing technology can only monitor the spontaneous combustion gas concentration of the underground coal mine area in real time, analyze the real-time safety of the underground coal mine area, and can not analyze the spontaneous combustion gas concentration variation fluctuation in the underground coal mine area, so that the spontaneous combustion fire risk of the underground coal mine area can not be evaluated, and further early warning of the spontaneous combustion fire of the coal mine can not be timely and accurately sent out, so that underground operators can not well deal with and process time, and the life safety of the underground operators is seriously threatened to a great extent.
Disclosure of Invention
In view of this, in order to solve the problems set forth in the background art, an underground coal mine spontaneous combustion fire beam tube monitoring system based on artificial intelligence is proposed.
In order to achieve the above purpose, the invention provides an underground coal mine spontaneous combustion fire beam tube monitoring system based on artificial intelligence, which comprises the following components:
underground coal mine area dividing module: the method comprises the steps of dividing a target underground coal mine area into monitoring subareas according to an equal area dividing mode, and numbering the monitoring subareas in the target underground coal mine area as 1,2 in sequence;
the beam tube test parameter acquisition module: the beam tube testing device is used for carrying out beam tube laying on each monitoring subarea in the target underground coal mine area, carrying out negative pressure testing on the beam tube of each monitoring subarea in the target underground coal mine area, and obtaining beam tube testing parameters of each monitoring subarea in the target underground coal mine area;
and the beam tube test state analysis module is used for: the beam tube testing device is used for analyzing and obtaining the testing state of the beam tube corresponding to each monitoring subarea in the target underground coal mining area according to the beam tube testing parameters of each monitoring subarea in the target underground coal mining area;
the beam tube test state processing module is used for: the system is used for screening all monitoring subareas in the abnormal working state of the beam tube in the target underground coal mine area, counting all monitoring subarea numbers in the abnormal working state of the beam tube in the target underground coal mine area, and sending the monitoring subareas to an underground coal mine supervision center;
regional environment parameter monitoring module: the method comprises the steps of monitoring environmental parameters of each appointed monitoring subarea in a target underground coal mine area in real time to obtain environmental parameter values of each appointed monitoring subarea in the target underground coal mine area, wherein the environmental parameters comprise environmental temperature and concentration of various spontaneous combustion gases;
regional environment parameter analysis module: the self-ignition gas safety influence weight index of each appointed monitoring subarea in the target underground coal mining area is analyzed according to the environmental parameter values of each appointed monitoring subarea in the target underground coal mining area;
the underground coal mine spontaneous combustion fire early warning processing module comprises: the method is used for carrying out corresponding treatment measures after comparison analysis based on the spontaneous combustion gas safety influence weight indexes of each appointed monitoring subarea in the target underground coal mine area;
underground coal mine supervision center: the system is used for displaying the serial numbers of all monitoring subareas in the abnormal working state of the beam tube in the target underground coal mine area, and simultaneously carrying out corresponding early warning and reminding according to the received spontaneous combustion fire early warning instruction;
underground coal mine safety database: the system is used for storing standard concentration and safe temperature of various spontaneous combustion gases in the underground coal mining area and storing historical environmental parameters monitored in various monitoring subareas in the underground coal mining area;
regional spontaneous combustion fire risk assessment module: the method is used for extracting historical environment parameters of each appointed monitoring subarea in the underground coal mine area in a preset historical period, analyzing spontaneous combustion fire risk assessment coefficients of each appointed monitoring subarea in the underground coal mine area, and carrying out corresponding treatment.
In one possible design, the specific method for acquiring the beam tube test parameters of each monitoring subarea in the target underground coal mine area in the beam tube test parameter acquisition module is as follows:
the method comprises the steps of respectively paving a plurality of beam tubes in each monitoring subarea in a target underground coal mine area, wherein the beam tubes correspond to the monitoring subareas one by one, one end of each beam tube is positioned in each monitoring subarea in the target underground coal mine area and is marked as the beam tube tail end of each monitoring subarea in the target underground coal mine area, and the other end of each beam tube is positioned in a corresponding underground supervision and analysis area of the target underground coal mine and is marked as the beam tube start end;
negative pressure testing is carried out on the beam tubes of each monitoring subarea in the target underground coal mine area to obtain the target undergroundThe method comprises the steps of marking the beam tube initial end pressure, the beam tube end pressure and the beam tube gas flow of each monitoring subarea in a target underground coal mining area as p respectively, wherein the beam tube testing parameters comprise the beam tube initial end pressure, the beam tube end pressure and the beam tube gas flow of each monitoring subarea in the coal mining area i 1 、p i 2 、L i Where i=1, 2,..n, i denotes the number of the i-th monitoring sub-area.
In one possible design, the specific analysis mode corresponding to the beam tube test state analysis module is as follows:
the pressure p at the beginning end of the beam tube of each monitoring subarea in the target underground coal mine area i 1 Pressure p at the end of the bundle tube i 2 And the beam tube gas flow is L i Substituted into formula
Obtaining state proportionality coefficient psi of corresponding beam tube in test process of each monitoring subarea in target underground coal mine area i Wherein ε is 1 And epsilon 2 Respectively expressed as a preset beam tube pressure influence factor and a beam tube gas flow influence factor, wherein e is expressed as a natural constant, and deltap ' is expressed as a preset allowable pressure error value L ' of the beam tube in the test process ' Label (C) The standard gas flow corresponding to the preset underground coal mine beam tube is shown as delta L Single sheet The allowable gas flow error value d corresponding to the preset unit length beam tube is expressed i ' is expressed as the standard length of the beam tube corresponding to the ith monitoring subarea in the preset target underground coal mine area;
comparing the state proportionality coefficient of the beam tube corresponding to each monitoring subarea in the target underground coal mine area in the test process with the standard state proportionality coefficient of the beam tube corresponding to the preset underground coal mine in the normal working state, if the state proportionality coefficient of the beam tube corresponding to a certain monitoring subarea in the test process is larger than or equal to the standard state proportionality coefficient of the beam tube corresponding to the preset underground coal mine in the normal working state, indicating that the test state of the beam tube corresponding to the monitoring subarea is the normal working state, otherwise, indicating that the test state of the beam tube corresponding to the monitoring subarea is the abnormal working state, and counting the test state of the beam tube corresponding to each monitoring subarea in the target underground coal mine area.
In one possible design, the specific processing manner corresponding to the beam tube test state processing module further includes:
according to the test state of the beam tube corresponding to each monitoring subarea in the target underground coal mine area, screening and counting each monitoring subarea in the normal working state of the beam tube in the target underground coal mine area, recording each monitoring subarea as each appointed monitoring subarea in the target underground coal mine area, and numbering each appointed monitoring subarea in the target underground coal mine area as 1, 2.
In one possible design, the area environment parameter monitoring module obtains the environment parameter values of each designated monitoring subarea in the target underground coal mine area, and specifically includes:
sampling the environmental gas of the corresponding appointed monitoring subarea by adopting a negative pressure extraction mode through a beam tube of each appointed monitoring subarea in the target underground coal mining area to obtain an environmental gas sample with a preset volume in each appointed monitoring subarea in the target underground coal mining area, monitoring the environmental gas sample with the preset volume in each appointed monitoring subarea in the target underground coal mining area to obtain the concentration of various spontaneous combustion gases in each appointed monitoring subarea in the target underground coal mining area, and respectively marking the concentration of various spontaneous combustion gases in each appointed monitoring subarea in the target underground coal mining area as q j a r J=1, 2,..m, j represents the number of the j-th designated monitoring sub-area, r=1, 2,..u, r represents the class r auto-ignition gas;
monitoring the environmental temperature of each appointed monitoring subarea in the target underground coal mine area to obtain the environmental temperature of each appointed monitoring subarea in the target underground coal mine area, and marking the environmental temperature of each appointed monitoring subarea in the target underground coal mine area as w j 。
In one possible design, the spontaneous combustion gas safety impact weight index analysis module analyzes the spontaneous combustion gas safety impact weight index of each specified monitoring subarea in the target underground coal mine area by the following specific analysis modes:
extracting standard concentration and safe temperature of various spontaneous combustion gases in an underground coal mine area stored in an underground coal mine safety database, and respectively marking the standard unit volume concentration and the safe temperature of various spontaneous combustion gases in the underground coal mine area as
And W is r ；
Analysis of spontaneous combustion gas safety impact weight index for each designated monitoring subarea in target downhole coal mining area
Wherein lambda is 1 And lambda (lambda) 2 Respectively expressed as safety influence factors corresponding to the concentration of spontaneous combustion gas and the ambient temperature in a preset underground coal mine area, and delta W r ' is expressed as an allowable difference between the preset safe temperature of the class r autoignition gas and the corresponding zone ambient temperature.
In one possible design, the underground coal mine spontaneous combustion fire early warning processing module specifically comprises:
comparing the spontaneous combustion gas safety influence weight index of each appointed monitoring subarea in the target underground coal mine area with a preset spontaneous combustion gas safety influence weight index threshold value, and if the spontaneous combustion gas safety influence weight index of a certain appointed monitoring subarea in the target underground coal mine area is greater than or equal to the preset spontaneous combustion gas safety influence weight index threshold value, indicating that the spontaneous combustion fire risk exists in the target underground coal mine area, sending a spontaneous combustion fire early warning instruction to an underground coal mine supervision center; and if the spontaneous combustion gas safety influence weight indexes of the designated monitoring subareas in the target underground coal mine area are smaller than the preset spontaneous combustion gas safety influence weight index threshold value, indicating that the target underground coal mine area has no spontaneous combustion fire risk temporarily, executing the area spontaneous combustion fire risk assessment module.
In one possible design, the area spontaneous combustion fire risk assessment module analyzes spontaneous combustion fire risk assessment coefficients of each designated monitoring subarea in the underground coal mine area, and specifically includes:
extracting historical environment parameters corresponding to each monitoring in each monitoring subarea in an underground coal mine area stored in an underground coal mine safety database, screening the historical environment parameters corresponding to each appointed monitoring subarea in the underground coal mine area in a preset historical period, and respectively representing the environment temperature corresponding to each appointed monitoring subarea in the underground coal mine area in each preset historical period and the concentration of each spontaneous combustion gas as W' jf And Q' jf a′ r Where f=1, 2,., k, f represents the f-th monitoring in a preset history period;
obtaining the concentration variation fluctuation index phi of each spontaneous combustion gas in each designated monitoring subarea in the target underground coal mining area according to the concentration of each spontaneous combustion gas in each designated monitoring subarea in the target underground coal mining area jr ；
Obtaining the environmental temperature change fluctuation index of each appointed monitoring subarea in the target underground coal mining area according to the environmental temperature of each appointed monitoring subarea in the target underground coal mining area
Analyzing spontaneous combustion fire risk assessment coefficients of each appointed monitoring subarea in target underground coal mine area
Wherein alpha is 1 And alpha 2 The risk influence factors are respectively expressed as a preset risk influence factor corresponding to the concentration change of the spontaneous combustion gas and a preset risk influence factor corresponding to the ambient temperature change, and u is expressed as the type number of the spontaneous combustion gas.
In one possible design, the specific evaluation mode corresponding to the regional spontaneous combustion fire risk evaluation module further includes:
comparing the spontaneous combustion fire risk assessment coefficient of each appointed monitoring subarea in the target underground coal mine area with a preset spontaneous combustion fire risk assessment threshold value in the underground coal mine area, and if the spontaneous combustion fire risk assessment coefficient of a certain appointed monitoring subarea in the target underground coal mine area is larger than the preset spontaneous combustion fire risk assessment threshold value in the safety underground coal mine area, indicating that the spontaneous combustion fire risk exists in the appointed monitoring subarea in the target underground coal mine area, informing underground coal mine safety monitoring management personnel to carry out corresponding treatment on the appointed monitoring subarea.
Compared with the prior art, the invention has the following beneficial effects:
according to the underground coal mine spontaneous combustion fire beam tube monitoring system based on artificial intelligence, negative pressure testing is conducted on the beam tubes of all monitoring subareas in the target underground coal mine area, beam tube testing parameters of all monitoring subareas in the target underground coal mine area are monitored, and the testing states of the beam tubes corresponding to all monitoring subareas in the target underground coal mine area are analyzed, so that the problems of leakage and blockage of the beam tubes are effectively avoided, the beam tube monitoring situation can be reflected more rapidly, and the reliability and accuracy of later monitoring analysis results are further improved.
According to the invention, the environmental parameter values of each appointed monitoring subarea in the target underground coal mine area are monitored, the spontaneous combustion gas safety influence weight index of each appointed monitoring subarea in the target underground coal mine area is analyzed, and corresponding treatment measures are carried out, so that the safety of the underground coal mine area is analyzed in real time, the underground coal mine is ensured to be safely mined, and a safe working environment is further provided for underground operators.
According to the method, the historical environment parameters of each appointed monitoring subarea in the underground coal mine area are extracted and monitored in the preset historical period, the spontaneous combustion fire risk assessment coefficients of each appointed monitoring subarea in the underground coal mine area are analyzed by combining the environment parameters of each appointed monitoring subarea in the target underground coal mine area, and corresponding treatment is carried out, so that the spontaneous combustion fire risk assessment accuracy of the underground coal mine area is improved, early warning of spontaneous combustion fires of the coal mine can be timely and accurately sent out, underground operators have more coping and processing time, spontaneous combustion fires of the underground coal mine and even explosion accidents are effectively prevented, and the life safety of the underground operators is further ensured.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic diagram of a system module connection according to the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1, the invention provides an underground coal mine spontaneous combustion fire beam tube monitoring system based on artificial intelligence, which is characterized by comprising an underground coal mine area dividing module, a beam tube test parameter acquisition module, a beam tube test state analysis module, a beam tube test state processing module, an area environment parameter monitoring module, an area environment parameter analysis module, an underground coal mine spontaneous combustion fire early warning processing module, an underground coal mine supervision center, an underground coal mine safety database and an area spontaneous combustion fire risk assessment module.
The underground coal mine area dividing module is connected with the beam tube test parameter acquisition module, the beam tube test state analysis module is connected with the beam tube test parameter acquisition module and the beam tube test state processing module respectively, the beam tube test state processing module is connected with the area environment parameter monitoring module and the underground coal mine monitoring center respectively, the area environment parameter analysis module is connected with the area environment parameter monitoring module, the underground coal mine spontaneous combustion fire early warning processing module and the underground coal mine safety database respectively, the underground coal mine spontaneous combustion fire early warning processing module is connected with the area spontaneous combustion fire risk assessment module and the underground coal mine supervision center respectively, and the area spontaneous combustion fire risk assessment module is connected with the underground coal mine safety database.
The underground coal mine area dividing module is used for dividing the target underground coal mine area into monitoring subareas according to an equal area dividing mode, and sequentially numbering the monitoring subareas in the target underground coal mine area as 1, 2.
The beam tube test parameter acquisition module is used for carrying out beam tube laying on each monitoring subarea in the target underground coal mine area, and carrying out negative pressure test on the beam tube of each monitoring subarea in the target underground coal mine area to obtain the beam tube test parameters of each monitoring subarea in the target underground coal mine area.
In the preferred technical scheme of the application, the specific acquisition method of the beam tube test parameters of each monitoring subarea in the target underground coal mine area in the beam tube test parameter acquisition module is as follows:
the method comprises the steps of respectively paving a plurality of beam tubes in each monitoring subarea in a target underground coal mine area, wherein the beam tubes correspond to the monitoring subareas one by one, one end of each beam tube is positioned in each monitoring subarea in the target underground coal mine area and is marked as the beam tube tail end of each monitoring subarea in the target underground coal mine area, and the other end of each beam tube is positioned in a corresponding underground supervision and analysis area of the target underground coal mine and is marked as the beam tube start end;
carrying out negative pressure test on the beam tubes of each monitoring subarea in the target underground coal mining area to obtain beam tube test parameters of each monitoring subarea in the target underground coal mining area, wherein the beam tube test parameters comprise beam tube start end pressure, beam tube end pressure and beam tube gas flow, and the beam tube start end pressure, the beam tube end pressure and the beam tube gas flow of each monitoring subarea in the target underground coal mining area are respectively marked as p i 1 、p i 2 、L i Where i=1, 2,..n, i denotes the number of the i-th monitoring sub-area.
The method has the advantages that the beam tube laying is carried out on each monitoring subarea in the target underground coal mine area, the laying length of the beam tube can be effectively reduced, the later time for monitoring the spontaneous combustion gas in the underground coal mine area is shortened, and therefore the real-time performance of the spontaneous combustion gas collection data in the later underground coal mine area is improved.
The beam tube testing state analysis module is used for analyzing and obtaining the testing state of the beam tube corresponding to each monitoring subarea in the target underground coal mining area according to the beam tube testing parameters of each monitoring subarea in the target underground coal mining area.
In the preferred technical scheme of the application, the specific analysis mode corresponding to the beam tube test state analysis module is as follows:
the pressure p at the beginning end of the beam tube of each monitoring subarea in the target underground coal mine area i 1 Pressure p at the end of the bundle tube i 2 And the beam tube gas flow is L i Substituted into formula
Obtaining state proportionality coefficient psi of corresponding beam tube in test process of each monitoring subarea in target underground coal mine area i Wherein ε is 1 And epsilon 2 Respectively expressed as a preset beam tube pressure influence factor and a beam tube gas flow influence factor, wherein e is expressed as a natural constant, and deltap ' is expressed as a preset allowable pressure error value L ' of the beam tube in the test process ' Label (C) The standard gas flow corresponding to the preset underground coal mine beam tube is shown as delta L Single sheet The allowable gas flow error value, d 'corresponding to the preset unit length beam tube is expressed' i Representing the standard length of the beam tube corresponding to the ith monitoring subarea in the preset target underground coal mine area;
comparing the state proportionality coefficient of the beam tube corresponding to each monitoring subarea in the target underground coal mine area in the test process with the standard state proportionality coefficient of the beam tube corresponding to the preset underground coal mine in the normal working state, if the state proportionality coefficient of the beam tube corresponding to a certain monitoring subarea in the test process is larger than or equal to the standard state proportionality coefficient of the beam tube corresponding to the preset underground coal mine in the normal working state, indicating that the test state of the beam tube corresponding to the monitoring subarea is the normal working state, otherwise, indicating that the test state of the beam tube corresponding to the monitoring subarea is the abnormal working state, and counting the test state of the beam tube corresponding to each monitoring subarea in the target underground coal mine area.
The beam tube testing state processing module is used for screening each monitoring subarea in the beam tube abnormal working state in the target underground coal mine area, counting the serial numbers of each monitoring subarea in the beam tube abnormal working state in the target underground coal mine area and sending the serial numbers to the underground coal mine supervision center.
In the preferred technical solution of the present application, the specific processing manner corresponding to the beam tube testing state processing module further includes:
according to the test state of the beam tube corresponding to each monitoring subarea in the target underground coal mine area, screening and counting each monitoring subarea in the normal working state of the beam tube in the target underground coal mine area, recording each monitoring subarea as each appointed monitoring subarea in the target underground coal mine area, and numbering each appointed monitoring subarea in the target underground coal mine area as 1, 2.
In the embodiment, the beam tube of each monitoring subarea in the target underground coal mining area is subjected to the negative pressure test, the beam tube test parameters of each monitoring subarea in the target underground coal mining area are monitored, and the test state of the beam tube corresponding to each monitoring subarea in the target underground coal mining area is analyzed, so that the problems of leakage and blockage of the beam tube are effectively avoided, the beam tube monitoring condition can be reflected more rapidly, and the reliability and the accuracy of the later monitoring analysis result are further improved.
The regional environment parameter monitoring module is used for monitoring the environment parameters of each appointed monitoring subarea in the target underground coal mine region in real time to obtain the environment parameter values of each appointed monitoring subarea in the target underground coal mine region, wherein the environment parameters comprise the environment temperature and the concentration of various spontaneous combustion gases.
In a preferred technical solution of the present application, the area environmental parameter monitoring module obtains environmental parameter values of each designated monitoring subarea in the target underground coal mine area, and specifically includes:
through each of the target downhole coal mining areasThe beam tube of the appointed monitoring subarea adopts a negative pressure extraction mode to sample the environmental gas corresponding to the appointed monitoring subarea, so as to obtain environmental gas samples with preset volumes in the appointed monitoring subareas in the target underground coal mining area, monitors the environmental gas samples with preset volumes in the appointed monitoring subareas in the target underground coal mining area, obtains the concentration of various spontaneous combustion gases in the appointed monitoring subareas in the target underground coal mining area, and marks the concentration of various spontaneous combustion gases in the appointed monitoring subareas in the target underground coal mining area as q respectively j a r J=1, 2,..m, j represents the number of the j-th designated monitoring sub-area, r=1, 2,..u, r represents the class r auto-ignition gas;
monitoring the environmental temperature of each appointed monitoring subarea in the target underground coal mine area to obtain the environmental temperature of each appointed monitoring subarea in the target underground coal mine area, and marking the environmental temperature of each appointed monitoring subarea in the target underground coal mine area as w j 。
In the above, the temperature sensors installed at the ends of the beam tubes of each monitoring subarea in the target underground coal mine area are used for monitoring the environmental temperature of the corresponding monitoring subarea.
Further, the various types of autoignition gases include, but are not limited to: carbon monoxide, carbon dioxide, methane, ethylene, ethane, oxygen and nitrogen.
In a preferred embodiment of the present invention, the concentration obtaining method of each type of spontaneous combustion gas in each designated monitoring sub-area in the above-mentioned underground coal mine area of the middle target is as follows:
monitoring the environmental gas samples with preset volumes in the specified monitoring subareas in the target underground coal mining area through a gas chromatograph to obtain the content of various spontaneous combustion gases in the environmental gas samples with preset volumes in the specified monitoring subareas in the target underground coal mining area, and marking the content of various spontaneous combustion gases in the environmental gas samples with preset volumes in the specified monitoring subareas in the target underground coal mining area as g j a r ；
Analyzing to obtain single of various spontaneous combustion gases in each appointed monitoring subarea in target underground coal mining areaConcentration of bit volume
V Pre-preparation The unit volume concentration of each type of spontaneous combustion gas in each appointed monitoring subarea in the target underground coal mine area is recorded as the concentration of each type of spontaneous combustion gas in each appointed monitoring subarea in the target underground coal mine area.
The regional environment parameter analysis module is used for analyzing the spontaneous combustion gas safety influence weight index of each appointed monitoring subarea in the target underground coal mine region according to the environment parameter values of each appointed monitoring subarea in the target underground coal mine region.
In the preferred technical scheme of the application, the spontaneous combustion gas safety influence weight index analysis module analyzes the spontaneous combustion gas safety influence weight index of each appointed monitoring subarea in the target underground coal mine area, and the specific analysis mode is as follows:
extracting standard concentration and safe temperature of various spontaneous combustion gases in an underground coal mine area stored in an underground coal mine safety database, and respectively marking the standard unit volume concentration and the safe temperature of various spontaneous combustion gases in the underground coal mine area as
And W is r ；
The environmental temperature w of each appointed monitoring subarea in the target underground coal mine area j And the concentration q of each type of spontaneous combustion gas in each designated monitoring area j a r Substituting spontaneous combustion gas safety influence weight index analysis formula
Obtaining the spontaneous combustion gas safety influence weight index xi of each appointed monitoring subarea in the target underground coal mine area j Wherein lambda is 1 And lambda (lambda) 2 Respectively expressed as safety influence factors corresponding to the spontaneous combustion gas concentration and the ambient temperature in the preset underground coal mine area, and the DeltaW' r Expressed as a permission between a preset safe temperature of the class r autoignition gas and the corresponding zone ambient temperatureXu Chazhi.
The underground coal mine spontaneous combustion fire early warning processing module is used for comparing and analyzing the spontaneous combustion gas safety influence weight indexes of each appointed monitoring subarea in the target underground coal mine area and then carrying out corresponding processing measures.
In the preferred technical scheme of this application, the colliery spontaneous combustion fire early warning processing module specifically includes:
comparing the spontaneous combustion gas safety influence weight index of each appointed monitoring subarea in the target underground coal mine area with a preset spontaneous combustion gas safety influence weight index threshold value, and if the spontaneous combustion gas safety influence weight index of a certain appointed monitoring subarea in the target underground coal mine area is greater than or equal to the preset spontaneous combustion gas safety influence weight index threshold value, indicating that the spontaneous combustion fire risk exists in the target underground coal mine area, sending a spontaneous combustion fire early warning instruction to an underground coal mine supervision center; and if the spontaneous combustion gas safety influence weight indexes of the designated monitoring subareas in the target underground coal mine area are smaller than the preset spontaneous combustion gas safety influence weight index threshold value, indicating that the target underground coal mine area has no spontaneous combustion fire risk temporarily, executing the area spontaneous combustion fire risk assessment module.
The underground coal mine supervision center is used for displaying the serial numbers of all monitoring subareas in the abnormal working state of the beam tube in the target underground coal mine area, and simultaneously carrying out corresponding early warning and reminding according to the received spontaneous combustion fire early warning instruction.
In the embodiment, the environmental parameter values of each appointed monitoring subarea in the target underground coal mine area are monitored, the spontaneous combustion gas safety influence weight index of each appointed monitoring subarea in the target underground coal mine area is analyzed, corresponding treatment measures are carried out, and further the safety of the underground coal mine area is analyzed in real time, so that the underground coal mine can be safely mined, and a safe working environment is further provided for underground operators.
The underground coal mine safety database is used for storing standard concentration and safety temperature of various spontaneous combustion gases in an underground coal mine area and storing historical environment parameters monitored in each monitoring subarea in the underground coal mine area.
The regional spontaneous combustion fire risk assessment module is used for extracting historical environment parameters of each appointed monitoring subarea in the underground coal mine region in each monitoring in a preset historical period, analyzing spontaneous combustion fire risk assessment coefficients of each appointed monitoring subarea in the underground coal mine region, and carrying out corresponding treatment.
In a preferred technical scheme of the application, the regional spontaneous combustion fire risk assessment module analyzes spontaneous combustion fire risk assessment coefficients of each appointed monitoring subarea in the underground coal mine region, and specifically comprises the following steps:
extracting historical environment parameters corresponding to each monitoring in each monitoring subarea in an underground coal mine area stored in an underground coal mine safety database, screening the historical environment parameters corresponding to each appointed monitoring subarea in the underground coal mine area in a preset historical period, and respectively representing the environment temperature corresponding to each appointed monitoring subarea in the underground coal mine area in each preset historical period and the concentration of each spontaneous combustion gas as W' jf And Q' jf a′ r Where f=1, 2,., k, f represents the f-th monitoring in a preset history period;
obtaining the concentration variation fluctuation index phi of each spontaneous combustion gas in each designated monitoring subarea in the target underground coal mining area according to the concentration of each spontaneous combustion gas in each designated monitoring subarea in the target underground coal mining area jr ；
Obtaining the environmental temperature change fluctuation index of each appointed monitoring subarea in the target underground coal mining area according to the environmental temperature of each appointed monitoring subarea in the target underground coal mining area
Analyzing spontaneous combustion fire risk assessment coefficients of each appointed monitoring subarea in target underground coal mine area
Wherein alpha is 1 And alpha 2 Respectively expressed as the preset self-ignition gas concentration changeThe risk influence factor corresponds to the environmental temperature change, and u is expressed as the number of kinds of the spontaneous combustion gas.
Further, the concentration variation fluctuation index analysis formula of each spontaneous combustion gas in each appointed monitoring subarea in the medium-target underground coal mine area is as follows
Wherein phi is jr Expressed as the concentration variation fluctuation index, mu, of the type (r) spontaneous combustion gas in the j appointed monitoring subarea in the target underground coal mine area r The variation fluctuation correction coefficient of the concentration variation of the class r spontaneous combustion gas is expressed as a preset, and k is expressed as the monitoring times in a preset history period.
Further, the environmental temperature change fluctuation index analysis formula of each designated monitoring subarea in the medium-target underground coal mine area is as follows
Wherein->
The environmental temperature variation fluctuation index is expressed as the j-th designated monitoring subarea in the target underground coal mine area.
In a preferred embodiment of the present invention, the specific evaluation mode corresponding to the regional spontaneous combustion fire risk evaluation module further includes:
comparing the spontaneous combustion fire risk assessment coefficient of each appointed monitoring subarea in the target underground coal mine area with a preset spontaneous combustion fire risk assessment threshold value in the underground coal mine area, and if the spontaneous combustion fire risk assessment coefficient of a certain appointed monitoring subarea in the target underground coal mine area is larger than the preset spontaneous combustion fire risk assessment threshold value in the safety underground coal mine area, indicating that the spontaneous combustion fire risk exists in the appointed monitoring subarea in the target underground coal mine area, informing underground coal mine safety monitoring management personnel to carry out corresponding treatment on the appointed monitoring subarea.
In the embodiment, through extracting the historical environmental parameters of each appointed monitoring subarea in the underground coal mine area in each preset historical period and combining the environmental parameters of each appointed monitoring subarea in the target underground coal mine area, the invention analyzes the spontaneous combustion fire risk assessment coefficient of each appointed monitoring subarea in the underground coal mine area and carries out corresponding treatment, thereby realizing analysis on spontaneous combustion gas concentration variation fluctuation in the underground coal mine area, improving the spontaneous combustion fire risk assessment accuracy of the underground coal mine area, further timely and accurately sending out early warning of spontaneous combustion fire of the coal mine, leading underground operators to have more coping and processing time, effectively preventing spontaneous combustion fire even explosion accidents of the underground coal mine and further guaranteeing the life safety of the underground operators.
The foregoing is merely illustrative and explanatory of the principles of the invention, as various modifications and additions may be made to the specific embodiments described, or similar thereto, by those skilled in the art, without departing from the principles of the invention or beyond the scope of the appended claims.
Claims (6)
1. An artificial intelligence based underground coal mine spontaneous combustion fire beam tube monitoring system, which is characterized by comprising:
underground coal mine area dividing module: the method comprises the steps of dividing a target underground coal mine area into monitoring subareas according to an equal area dividing mode, and numbering the monitoring subareas in the target underground coal mine area as 1,2 in sequence;
the beam tube test parameter acquisition module: the beam tube testing device is used for carrying out beam tube laying on each monitoring subarea in the target underground coal mine area, carrying out negative pressure testing on the beam tube of each monitoring subarea in the target underground coal mine area, and obtaining beam tube testing parameters of each monitoring subarea in the target underground coal mine area;
and the beam tube test state analysis module is used for: the beam tube testing device is used for analyzing and obtaining the testing state of the beam tube corresponding to each monitoring subarea in the target underground coal mining area according to the beam tube testing parameters of each monitoring subarea in the target underground coal mining area;
the beam tube test state processing module is used for: the system is used for screening all monitoring subareas in the abnormal working state of the beam tube in the target underground coal mine area, counting all monitoring subarea numbers in the abnormal working state of the beam tube in the target underground coal mine area, and sending the monitoring subareas to an underground coal mine supervision center;
regional environment parameter monitoring module: the method comprises the steps of monitoring environmental parameters of each appointed monitoring subarea in a target underground coal mine area in real time to obtain environmental parameter values of each appointed monitoring subarea in the target underground coal mine area, wherein the environmental parameters comprise environmental temperature and concentration of various spontaneous combustion gases;
regional environment parameter analysis module: the self-ignition gas safety influence weight index of each appointed monitoring subarea in the target underground coal mining area is analyzed according to the environmental parameter values of each appointed monitoring subarea in the target underground coal mining area;
the underground coal mine spontaneous combustion fire early warning processing module comprises: the method is used for carrying out corresponding treatment measures after comparison analysis based on the spontaneous combustion gas safety influence weight indexes of each appointed monitoring subarea in the target underground coal mine area;
underground coal mine supervision center: the system is used for displaying the serial numbers of all monitoring subareas in the abnormal working state of the beam tube in the target underground coal mine area, and simultaneously carrying out corresponding early warning and reminding according to the received spontaneous combustion fire early warning instruction;
underground coal mine safety database: the system is used for storing standard concentration and safe temperature of various spontaneous combustion gases in the underground coal mining area and storing historical environmental parameters monitored in various monitoring subareas in the underground coal mining area;
regional spontaneous combustion fire risk assessment module: the method comprises the steps of extracting historical environment parameters of each appointed monitoring subarea in an underground coal mine area in a preset historical period, analyzing spontaneous combustion fire risk assessment coefficients of each appointed monitoring subarea in the underground coal mine area, and carrying out corresponding treatment;
the regional environment parameter monitoring module obtains the environment parameter values of each appointed monitoring subarea in the target underground coal mine region, and specifically comprises the following steps:
the negative pressure extraction method is adopted by beam tubes passing through each appointed monitoring subarea in the target underground coal mining areaSampling the environmental gas corresponding to the specified monitoring subareas to obtain environmental gas samples with preset volumes in the specified monitoring subareas in the target underground coal mining area, monitoring the environmental gas samples with preset volumes in the specified monitoring subareas in the target underground coal mining area to obtain the concentrations of various spontaneous combustion gases in the specified monitoring subareas in the target underground coal mining area, and marking the concentrations of various spontaneous combustion gases in the specified monitoring subareas in the target underground coal mining area as q respectively j a r J=1, 2,..m, j represents the number of the j-th designated monitoring sub-area, r=1, 2,..u, r represents the class r auto-ignition gas;
monitoring the environmental temperature of each appointed monitoring subarea in the target underground coal mine area to obtain the environmental temperature of each appointed monitoring subarea in the target underground coal mine area, and marking the environmental temperature of each appointed monitoring subarea in the target underground coal mine area as w j ；
The regional environment parameter analysis module is used for analyzing the spontaneous combustion gas safety influence weight index of each appointed monitoring subarea in the target underground coal mine region, and the specific analysis mode is as follows:
extracting standard concentration and safe temperature of various spontaneous combustion gases in an underground coal mine area stored in an underground coal mine safety database, and respectively marking the standard unit volume concentration and the safe temperature of various spontaneous combustion gases in the underground coal mine area as
And W is r ；
Analysis of spontaneous combustion gas safety impact weight index for each designated monitoring subarea in target downhole coal mining area
Wherein lambda is 1 And lambda (lambda) 2 Respectively expressed as safety influence factors corresponding to the concentration of spontaneous combustion gas and the ambient temperature in a preset underground coal mine area, and delta W r ' is expressed as an allowable difference between a preset safe temperature of the class r autoignition gas and the ambient temperature of the corresponding region;
the regional spontaneous combustion fire risk assessment module analyzes spontaneous combustion fire risk assessment coefficients of each appointed monitoring subarea in the underground coal mine region, and specifically comprises the following steps:
extracting historical environment parameters corresponding to each monitoring in each monitoring subarea in an underground coal mine area stored in an underground coal mine safety database, screening the historical environment parameters corresponding to each appointed monitoring subarea in the underground coal mine area in a preset historical period, and respectively representing the environment temperature corresponding to each appointed monitoring subarea in the underground coal mine area in each preset historical period and the concentration of each spontaneous combustion gas as W j ′ f And Q j ′ f a r ' wherein f=1, 2,., k, f represents the f-th monitoring in a preset history period;
obtaining the concentration variation fluctuation index phi of each spontaneous combustion gas in each designated monitoring subarea in the target underground coal mining area according to the concentration of each spontaneous combustion gas in each designated monitoring subarea in the target underground coal mining area jr ；
Obtaining the environmental temperature change fluctuation index of each appointed monitoring subarea in the target underground coal mining area according to the environmental temperature of each appointed monitoring subarea in the target underground coal mining area
Analyzing spontaneous combustion fire risk assessment coefficients of each appointed monitoring subarea in target underground coal mine area
Wherein alpha is 1 And alpha 2 The risk influence factors are respectively expressed as a preset risk influence factor corresponding to the concentration change of the spontaneous combustion gas and a preset risk influence factor corresponding to the ambient temperature change, and u is expressed as the type number of the spontaneous combustion gas.
2. An artificial intelligence based downhole coal mine spontaneous combustion fire beam tube monitoring system as claimed in claim 1, wherein: the specific acquisition method of the beam tube test parameters of each monitoring subarea in the target underground coal mine area in the beam tube test parameter acquisition module comprises the following steps:
the method comprises the steps of respectively paving a plurality of beam tubes in each monitoring subarea in a target underground coal mine area, wherein the beam tubes correspond to the monitoring subareas one by one, one end of each beam tube is positioned in each monitoring subarea in the target underground coal mine area and is marked as the beam tube tail end of each monitoring subarea in the target underground coal mine area, and the other end of each beam tube is positioned in a corresponding underground supervision and analysis area of the target underground coal mine and is marked as the beam tube start end;
carrying out negative pressure test on the beam tubes of each monitoring subarea in the target underground coal mining area to obtain beam tube test parameters of each monitoring subarea in the target underground coal mining area, wherein the beam tube test parameters comprise beam tube start end pressure, beam tube end pressure and beam tube gas flow, and the beam tube start end pressure, the beam tube end pressure and the beam tube gas flow of each monitoring subarea in the target underground coal mining area are respectively marked as p i 1 、p i 2 、L i Where i=1, 2,..n, i denotes the number of the i-th monitoring sub-area.
3. An artificial intelligence based downhole coal mine spontaneous combustion fire beam tube monitoring system as claimed in claim 1, wherein: the specific analysis mode corresponding to the beam tube test state analysis module is as follows:
the pressure p at the beginning end of the beam tube of each monitoring subarea in the target underground coal mine area i 1 Pressure p at the end of the bundle tube i 2 And the beam tube gas flow is L i Substituted into formula
Obtaining state proportionality coefficient psi of corresponding beam tube in test process of each monitoring subarea in target underground coal mine area i Wherein ε is 1 And epsilon 2 Respectively expressed as a preset beam tube pressure influence factor and a beam tube gas flow influence factor, e is expressed as a natural constant, and Δp' is expressed asPreset allowable pressure error value L 'of beam tube in test process' Label (C) The standard gas flow corresponding to the preset underground coal mine beam tube is shown as delta L Single sheet The allowable gas flow error value d corresponding to the preset unit length beam tube is expressed i ' is expressed as the standard length of the beam tube corresponding to the ith monitoring subarea in the preset target underground coal mine area;
comparing the state proportionality coefficient of the beam tube corresponding to each monitoring subarea in the target underground coal mine area in the test process with the standard state proportionality coefficient of the beam tube corresponding to the preset underground coal mine in the normal working state, if the state proportionality coefficient of the beam tube corresponding to a certain monitoring subarea in the test process is larger than or equal to the standard state proportionality coefficient of the beam tube corresponding to the preset underground coal mine in the normal working state, indicating that the test state of the beam tube corresponding to the monitoring subarea is the normal working state, otherwise, indicating that the test state of the beam tube corresponding to the monitoring subarea is the abnormal working state, and counting the test state of the beam tube corresponding to each monitoring subarea in the target underground coal mine area.
4. An artificial intelligence based downhole coal mine spontaneous combustion fire beam tube monitoring system as claimed in claim 1, wherein: the specific processing mode corresponding to the beam tube test state processing module further comprises the following steps:
according to the test state of the beam tube corresponding to each monitoring subarea in the target underground coal mine area, screening and counting each monitoring subarea in the normal working state of the beam tube in the target underground coal mine area, recording each monitoring subarea as each appointed monitoring subarea in the target underground coal mine area, and numbering each appointed monitoring subarea in the target underground coal mine area as 1, 2.
5. An artificial intelligence based downhole coal mine spontaneous combustion fire beam tube monitoring system as claimed in claim 1, wherein: the underground coal mine spontaneous combustion fire early warning processing module specifically comprises:
comparing the spontaneous combustion gas safety influence weight index of each appointed monitoring subarea in the target underground coal mine area with a preset spontaneous combustion gas safety influence weight index threshold value, and if the spontaneous combustion gas safety influence weight index of a certain appointed monitoring subarea in the target underground coal mine area is greater than or equal to the preset spontaneous combustion gas safety influence weight index threshold value, indicating that the spontaneous combustion fire risk exists in the target underground coal mine area, sending a spontaneous combustion fire early warning instruction to an underground coal mine supervision center; and if the spontaneous combustion gas safety influence weight indexes of the designated monitoring subareas in the target underground coal mine area are smaller than the preset spontaneous combustion gas safety influence weight index threshold value, indicating that the target underground coal mine area has no spontaneous combustion fire risk temporarily, executing the area spontaneous combustion fire risk assessment module.
6. An artificial intelligence based downhole coal mine spontaneous combustion fire beam tube monitoring system as claimed in claim 1, wherein: the specific evaluation mode corresponding to the regional spontaneous combustion fire risk evaluation module further comprises the following steps:
comparing the spontaneous combustion fire risk assessment coefficient of each appointed monitoring subarea in the target underground coal mine area with a preset spontaneous combustion fire risk assessment threshold value in the underground coal mine area, and if the spontaneous combustion fire risk assessment coefficient of a certain appointed monitoring subarea in the target underground coal mine area is larger than the preset spontaneous combustion fire risk assessment threshold value in the safety underground coal mine area, indicating that the spontaneous combustion fire risk exists in the appointed monitoring subarea in the target underground coal mine area, informing underground coal mine safety monitoring management personnel to carry out corresponding treatment on the appointed monitoring subarea.
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