CN102071971A - Gas sampling detector of multifunctional tube bundle monitoring emergency fire prevention and fire fighting system - Google Patents
Gas sampling detector of multifunctional tube bundle monitoring emergency fire prevention and fire fighting system Download PDFInfo
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- CN102071971A CN102071971A CN2010105515114A CN201010551511A CN102071971A CN 102071971 A CN102071971 A CN 102071971A CN 2010105515114 A CN2010105515114 A CN 2010105515114A CN 201010551511 A CN201010551511 A CN 201010551511A CN 102071971 A CN102071971 A CN 102071971A
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Abstract
The invention relates to a gas sampling detector of a multifunctional tube bundle monitoring emergency fire prevention and fire fighting system, which not only focuses on monitoring hazardous gas, but also can detect temperature variation and wind speed and wind pressure change in a mine shaftway, gas can be extracted stably for sampling, the coordination of the monitoring system is strong, and emergency fire fighting can be conveniently carried out in time. The technical scheme is as follows: the gas sampling detector of the multifunctional tube bundle monitoring emergency fire prevention and fire fighting system comprises a sampling pipe and a gas quality and flow controller, wherein a dryer and a filter are connected sequentially between the gas quality and flow controller and the sampling pipe, the sampling pipe is respectively connected with a gas analysis device and a flowmeter, the output end of the flowmeter is connected with an emptying valve, the output end of the gas analysis device is connected with a system data processing computer, and the input end of the gas quality and flow controller is connected with a gas shunt circuit control device. The invention is characterized in that the gas analysis device comprises a gas analyzer, an infrared gas sensor, a semiconductor type gas sensor and a catalytic combustion type gas sensor.
Description
Technical field
The present invention relates to the monitoring mining technical field, be specially the emergent anti-system gas sample detecting device that goes out of multi-functional tube bank monitoring.
Background technology
At present, mine gas detects and has obtained popularizing and using in the colliery, and the mine hazards monitoring adopts modes such as video monitoring, temperature remote sensing, gas-monitoring; Wherein, 1, temperature remote sensing adopts on-the-spot powered sensor monitoring to be transported to the mode on ground; 2, video monitoring adopts on-the-spot power supply camera to monitor and plays preventive effect; 3, gas-monitoring has the spot sensor monitor signal to be transported to ground, by the tube bank pipeline mine gas negative pressure extracting to be tested two kinds of methods to ground; The sampling analysis of tube bank monitoring system mainly contains gas chromatographicanalyzer, infrared gas analyser (test of all gases respective sensor) dual mode; Simultaneously air-supply, return air or gas are extracted the mensuration of carrying out blast, wind speed.
Above variety of way all has shortcoming separately, variant as certainty of measurement, can't accurately judge, monitor, the mutual coordinating analysis of system does not match etc., main drawback is 1, when paying attention to hazardous gas and detecting or ignored variations in temperature in the hoistway of mine, wind speed and pressure changes the influence to mine harm; Environment was abominable when 2, the on-the-spot power supply in down-hole was monitored, equipment is loaded down with trivial details, safeguard complexity and pot life instability; 3, subsurface environment causes negative pressure extracting gas sampling instability in the beam tube monitoring system.
In the prior art, the recognition methods of mine fire degree of danger---mainly carry out analysis and judgement, that is: with the method for Graham Sodd method of investing coefficient G and coal temperature T correspondence
G=100CO/(0.0265N2-O2)
In the formula: N2=100-(O2+CO2+CO+CH4+H2+CmHn)
CO, O2, CO2,---be respectively CO, the O2 in the return side sampled point gas sample, the concentration of volume percent of CO2.
1) when 0.7≤G≤1.0, the coal seam degree of oxidation increases, and the coal temperature is than the remarkable increase of primitive rock, and temperature reaches 60 ℃;
2) when 1.0≤G≤2.0, temperature reaches more than 60 ℃, and fire hazard increases, and should take preventive measures;
3) when 2.0≤G≤3.0, temperature reaches more than 60 ℃, and the coal heating is serious,, must take precautions against fire;
4) when G 〉=3.0, temperature reaches more than 300 ℃, and can there be naked light certainly in coal, must take the fire extinguishing measure.
Summary of the invention
Incoordination at the mine monitoring system, particularly at the gas beam tube monitoring system of existing mine purposes and down-hole infrared monitoring system simultaneously moment monitoring analysis problem, the invention provides the emergent anti-system gas sample detecting device that goes out of a kind of multi-functional tube bank monitoring, it can detect variations in temperature in the hoistway of mine when paying attention to the hazardous gas detection, wind speed and pressure changes; Environment was better when the on-the-spot power supply in down-hole was monitored, equipment succinct, it is simple to safeguard and the pot life stablizes; The negative pressure extracting gas sampling is stable in the beam tube monitoring system; Monitoring system harmony is strong, is convenient in time emergent fire extinguishing.
Its technical scheme is as follows:
It comprises sampling pipe and gaseous mass flow control valve, dryer and strainer are linked in sequence between described gas mass flow amount controller and the described sampling pipe, described sampling pipe connects gas analyzing apparatus and flow meter respectively, the output of flow meter connects atmospheric valve, the output connected system data handling machine of gas analyzing apparatus, the input of described gas mass flow amount controller connects gas control device along separate routes, and it is characterized in that: described gas analyzing apparatus comprises gas analyzer, infrared gas sensor, semiconductor-type gas sensor, catalytic combustion method gas sensor.
The present invention is used for the emergent anti-system of going out of drive monitoring, carry out sampling analysis owing to gather the gas sampled signal synchronously from the monitoring point, draw the environmental aspect of measuring point, owing to be synchronous acquired signal, can synchronizing moment monitor hoistway and coal rock layer temperature, down-hole air-flow, thereby realized gas, air-flow, the temperature analysis of synchronizing moment, be the anti-system of going out of monitoring that gas analysis, pipeline clean, emergent anti-fire extinguishing provides a kind of science that is integrated.
Description of drawings
Fig. 1 is a block diagram of the present invention;
Fig. 2 is the block diagram of gas analyzing apparatus of the present invention;
Fig. 3 is applied to the structural representation of the emergent anti-system of going out for the present invention.
The specific embodiment
See Fig. 1, Fig. 2, the present invention includes sampling pipe and gaseous mass flow control valve, dryer and strainer are linked in sequence between gas mass flow amount controller and the sampling pipe, sampling pipe connects gas analyzing apparatus and flow meter respectively, the output of flow meter connects atmospheric valve, the output connected system data handling machine of gas analyzing apparatus, the input of gas mass flow amount controller connects gas control device along separate routes, and gas analyzing apparatus comprises gas analyzer, infrared gas sensor, semiconductor-type gas sensor, catalytic combustion method gas sensor.
The course of work of the whole emergent anti-system of going out is described below in conjunction with accompanying drawing 3, plurality of detection point gas sampled signal, gather sensing module through measuring point and handle distribution through the multi-functional branch road allocation process of single channel device, the gas sampled of each measuring point in some allocation process devices and measuring point signal insert along separate routes through multi-functional beam tube branch road, and the processing of allocation process device distributes, measuring point gas sampled of handling well in the allocation process device and measuring point signal are through the access base station allocation process device processing distribution along separate routes of multi-functional beam tube along separate routes, and measuring point gas sampled of handling well in several base station assigns treating apparatus and measuring point signal insert machine room gas treatment equipment and machine room signal receiving device respectively through the total road of multi-functional beam tube;
The machine room signal receiving device through behind the signal processing module, is transferred to observing and controlling display and system data process computer to the measuring point signal of handling well respectively;
The machine room gas treatment equipment is the measuring point gas sampled process gas shunt control device of handling well, select to insert the anti-cleaning unit that goes out of sampling after the conducting, carrying out continuously to measuring point, gas sampled extracts, after solenoid control selection conducting, gas sampled is connected to the gas sampling checkout gear carries out monitoring analysis, the transfer of data that gas-monitoring is analyzed is handled to the system data process computer;
The anti-cleaning combination unit that goes out of sampling comprises monitoring point gas sampling device, pipeline cleaning device, emergent anti-extinguishing device, the gas sampling device extracts gas sampled incessantly from test point, when multi-functional beam tube road need be cleaned, the pipeline cleaning device cleaned multi-functional beam tube road; Find the mine situation of causing danger when monitoring system, when the anti-fire extinguishing of need meet an urgent need was handled, emergent anti-extinguishing device started, and mine is prevented putting out a fire;
The measuring point temperature monitoring is except to temperature is monitored in the hoistway, can also further expand the coal rock layer temperature is monitored, concrete measure is that the temperature detecting head is directly imbedded coal rock layer or adopted the monitoring of temperature detecting head to imbed the coal rock layer heat pipe temperature, detecting head can adopt the site safety power supply directly to power, also can adopt the multi-functional supply safety power supply, signal transmission can be thermal resistance (idol) variable signal or through numeral (simulation) data-signal of measuring point resume module;
Said system is analyzed contrast to hoistway temperature and coal rock layer, and the blast of the contiguous measuring point of same hoistway, pressure reduction, the analysis of wind velocity signal is to data operation when, draw temperature in the hoistway, the variation of air-flow, utilization system data process computer carries out analysis and judgement, thereby draw the actual state in the hoistway, when danger occurring in the hoistway, take some countermeasures fast, gather gas sampled and temperature synchronously from the monitoring point owing to adopted multi-functional beam tube, blast, pressure reduction, wind velocity signal to insert the machine room recoil simulator respectively through at what allocation process device signal and the machine room gas treatment equipment carries out sampling analysis, again the data of analyzing being put into the system data process computer handles, draw the environmental aspect of measuring point, owing to be synchronous acquired signal, can monitor hoistway and coal rock layer temperature by synchronizing moment, the down-hole air-flow, thereby realized the gas of synchronizing moment, air-flow, temperature analysis is gas analysis, pipeline cleans, the anti-system of going out of monitoring that emergent anti-fire extinguishing provides a kind of science that is integrated.
Claims (1)
1. the emergent anti-system gas sample detecting device that goes out of multi-functional tube bank monitoring, it comprises sampling pipe and gaseous mass flow control valve, dryer and strainer are linked in sequence between described gas mass flow amount controller and the described sampling pipe, described sampling pipe connects gas analyzing apparatus and flow meter respectively, the output of flow meter connects atmospheric valve, the output connected system data handling machine of gas analyzing apparatus, the input of described gas mass flow amount controller connects gas control device along separate routes, and it is characterized in that: described gas analyzing apparatus comprises gas analyzer, infrared gas sensor, semiconductor-type gas sensor, catalytic combustion method gas sensor.
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| CN2010105515114A CN102071971A (en) | 2010-11-20 | 2010-11-20 | Gas sampling detector of multifunctional tube bundle monitoring emergency fire prevention and fire fighting system |
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| CN2010105515114A CN102071971A (en) | 2010-11-20 | 2010-11-20 | Gas sampling detector of multifunctional tube bundle monitoring emergency fire prevention and fire fighting system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114352266A (en) * | 2022-01-09 | 2022-04-15 | 济源大地通信科技有限公司 | One-hole one-measurement monitoring device for coal mine drill site extraction and detection method thereof |
| CN117420053A (en) * | 2023-12-18 | 2024-01-19 | 安徽中科智泰光电测控科技有限公司 | Underground environment monitoring system based on spectrum beam tube monitoring and optical fiber temperature measurement |
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2010
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114352266A (en) * | 2022-01-09 | 2022-04-15 | 济源大地通信科技有限公司 | One-hole one-measurement monitoring device for coal mine drill site extraction and detection method thereof |
| CN117420053A (en) * | 2023-12-18 | 2024-01-19 | 安徽中科智泰光电测控科技有限公司 | Underground environment monitoring system based on spectrum beam tube monitoring and optical fiber temperature measurement |
| CN117420053B (en) * | 2023-12-18 | 2024-03-12 | 安徽中科智泰光电测控科技有限公司 | Underground environment monitoring system based on spectrum beam tube monitoring and optical fiber temperature measurement |
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Application publication date: 20110525 |