Method for on-line regulating-correcting firedamp sensor for mining safety monitoring system

A safety monitoring system and gas sensor technology, applied in general control systems, control/regulation systems, comprehensive factory control, etc., can solve the problems of gas false alarms, mine safety production hazards, and production operation effects, and prevent false alarms. , The calibration steps are simple, and the effect of shortening the blind area of ​​the monitoring period

Active Publication Date: 2008-09-03
TIANDI CHANGZHOU AUTOMATION +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Once the underground gas concentration value exceeds the limit in the blind area of ​​the monitoring period, it will bring great harm to the safe production of the mine
[0006] In addition, if the gas calibration personnel do not notify the dispatcher of the on-site calibration of the gas sensor before going down the well, or if

Method used

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  • Method for on-line regulating-correcting firedamp sensor for mining safety monitoring system
  • Method for on-line regulating-correcting firedamp sensor for mining safety monitoring system
  • Method for on-line regulating-correcting firedamp sensor for mining safety monitoring system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] See figure 1 , the mine safety monitoring system of this embodiment includes: a plurality of gas sensors 1, at least one monitoring substation 2 connected to each gas sensor 1, a ring network composed of a plurality of underground ring network switches 3, and an underground ring network The control room switch 4 connected to the network switch 3, the well monitoring server 5 connected to the control room switch 4, the remote switch 6 used to control the power supply of the underground high-power load 7 connected to the monitoring substation 2; the monitoring substation 2 and The underground ring network switch 3 is connected. The downhole high-power load 7 is a media collector or the like. Monitoring substation 2 is an industrial control computer.

[0021] See figure 2 The gas sensor 1 includes: a remote controller, an infrared receiving circuit 15 matched with the remote controller, a central control unit 11 connected to the infrared receiving circuit 15, a catalyt...

Embodiment 2

[0033] See figure 1 , 2 And 4, the online calibration method of the gas sensor of the mine safety monitoring system of the present embodiment, comprises the steps:

[0034] a. After the user sets a gas sensor 1 in the calibration state through the substation control keyboard of the monitoring substation 2 or the substation remote control, the monitoring substation 2 will send the sensor number information and calibration status information corresponding to the gas sensor 1 It is sent to the monitoring server 5 on the well through the communication network; the monitoring server 5 on the well shows that the gas sensor 1 is in the calibration state, and displays the sensor number; the display digital tube 16 of the gas sensor 1 prompts that it is in the calibration state.

[0035]b. Carry out on-site ventilation calibration for the gas sensor 1, that is: the user sends a sensor calibration command to the infrared receiving circuit 15 in the gas sensor 1 through the remote contr...

Embodiment 3

[0041] See figure 1 , 2 And 5, the online calibration method of the gas sensor of the mine safety monitoring system of the present embodiment, comprises the steps:

[0042] ①. After the user sets a gas sensor 1 in the calibration state through the monitoring server 5 on the well, the sensor number information and calibration status information corresponding to the gas sensor 1 are sent to the monitoring sub-station 2 through the communication network; the monitoring sub-station 2 marks The gas sensor 1 is in the calibration state; the display digital tube 16 of the gas sensor 1 prompts that it is in the calibration state.

[0043] ②. On-site ventilation calibration of the gas sensor 1, that is: the user sends a sensor calibration command to the infrared receiving circuit 15 in the gas sensor 1 through the remote control of the gas sensor 1, and the center of the gas sensor 1 connected to the infrared receiving circuit 15 The control unit 11 enters the calibration state after...

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Abstract

The invention relates to an on-line timing method of mash gas sensor of safety monitoring system for mining, which includes three modes: 1) doing on site alignment calibration of mash gas sensor, that is controlling the mash gas sensor and sending the alignment calibration status messages to the monitoring branch station and the monitoring server out of mine; the monitoring server out of mine displays the mash gas sensor is in alignment calibration condition; then doing on site ventilation alignment calibration and service interruption functional test of the corresponding mash gas sensor, at last ending the alignment calibration condition; setting a mash gas sensor in a alignment calibration condition by the monitoring branch station, then doing on site ventilation alignment calibration and service interruption functional test of the corresponding mash gas sensor, at last ending the alignment calibration condition; setting a mash gas sensor in a alignment calibration condition by the monitoring server out of mine, then doing on site ventilation alignment calibration and service interruption functional test of the corresponding mash gas sensor, at last ending the alignment calibration condition. The invention can shorten the blind zone in monitoring time, in order to improve downhole operation safety and reduce mis-alarming.

Description

technical field [0001] The invention relates to an online adjustment method of a gas sensor of a mine safety monitoring system. Background technique [0002] During the calibration process of the gas sensor of the mining safety monitoring system, due to the cumbersome steps, false alarms are often caused, and the monitoring server cannot judge whether the displayed gas concentration value is the actual on-site value, which brings inconvenience to normal underground operations. [0003] Article 8.3.6 of my country's "AQ1029-2007 Coal Mine Safety Monitoring System and Testing Instrument Use Management Regulations" stipulates that the methane over-limit power-off blocking and methane wind power blocking functions of the mining safety monitoring system must be tested every 10 days , especially to regularly calibrate the gas sensor of the mine safety monitoring system to ensure safe production. [0004] At present, the existing safety monitoring system takes too long in the proce...

Claims

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Application Information

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IPC IPC(8): G01N21/35G01N21/00G05B19/048G05B19/418G01N33/22
CPCY02P90/02
Inventor 王晓阳吕鹏飞汪丛笑陆铮贺耀宜朱前伟王勇高文汪学明
Owner TIANDI CHANGZHOU AUTOMATION
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