CN114487292A - Gas monitoring analyzer and fire early warning monitoring system - Google Patents

Gas monitoring analyzer and fire early warning monitoring system Download PDF

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Publication number
CN114487292A
CN114487292A CN202210066593.6A CN202210066593A CN114487292A CN 114487292 A CN114487292 A CN 114487292A CN 202210066593 A CN202210066593 A CN 202210066593A CN 114487292 A CN114487292 A CN 114487292A
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gas
monitoring
analyzer
early warning
analysis result
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辛兴
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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/0004—Gaseous mixtures, e.g. polluted air
    • G01N33/0009—General constructional details of gas analysers, e.g. portable test equipment
    • G01N33/0062—General constructional details of gas analysers, e.g. portable test equipment concerning the measuring method or the display, e.g. intermittent measurement or digital display
    • G01N33/0063—General constructional details of gas analysers, e.g. portable test equipment concerning the measuring method or the display, e.g. intermittent measurement or digital display using a threshold to release an alarm or displaying means
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N1/00—Sampling; Preparing specimens for investigation
    • G01N1/02—Devices for withdrawing samples
    • G01N1/22—Devices for withdrawing samples in the gaseous state
    • G01N1/24—Suction devices
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/0004—Gaseous mixtures, e.g. polluted air
    • G01N33/0009—General constructional details of gas analysers, e.g. portable test equipment
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B17/00—Fire alarms; Alarms responsive to explosion
    • G08B17/10—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B17/00—Fire alarms; Alarms responsive to explosion
    • G08B17/10—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means
    • G08B17/117—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means by using a detection device for specific gases, e.g. combustion products, produced by the fire

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  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Physics & Mathematics (AREA)
  • Pathology (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Immunology (AREA)
  • Combustion & Propulsion (AREA)
  • Food Science & Technology (AREA)
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  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Molecular Biology (AREA)
  • Biomedical Technology (AREA)
  • Sampling And Sample Adjustment (AREA)

Abstract

The invention relates to a gas monitoring analyzer and a fire early warning monitoring system, comprising: the device comprises an air suction pump, an air chamber and a chip, wherein the air suction pump is used for collecting and storing the air sample in the goaf, and the chip is used for sampling and analyzing the air sample in the air chamber to obtain an analysis result and sending the analysis result to a ground monitoring host. The invention realizes the monitoring of different gas changes in the goaf through the gas monitoring analyzer and the constructed fire early warning monitoring system, is convenient for users to obtain real-time gas indexes, effectively prevents the occurrence of fire, and simultaneously can also monitor the natural occurrence of a coal seam in the goaf in real time, reduce the occurrence probability of mine fire and gas explosion, thereby reducing the occurrence of mine safety accidents.

Description

Gas monitoring analyzer and fire early warning monitoring system
Technical Field
The invention relates to the technical field of fire early warning and monitoring, in particular to a gas monitoring analyzer and a fire early warning and monitoring system.
Background
China enters an uncommon historical development opportunity period, but various safety problems come along with the gradual increase of production scale, so that a digital mine advocated by the nation to be constructed hopefully improves the safety production level and management efficiency of coal mines by means of high-tech monitoring, communication and the like.
Currently, there are two main ways to monitor a fire downhole. The first method comprises the following steps: safety production monitored control system, the second kind: a beam tube monitoring system.
The safety production monitoring system is provided with various sensors such as methane, carbon monoxide, carbon dioxide, oxygen, hydrogen sulfide, nitrogen dioxide, wind speed, dust water level, smoke on-off feed and the like, and the fire disaster occurrence condition can be monitored through the numerical value change of the carbon monoxide temperature smoke sensor. However, there are problems when the safety monitoring system is used to monitor a fire: only the gas change in the air can be monitored, but the spontaneous combustion of the coal bed in the goaf cannot be monitored.
The beam tube monitoring system is characterized in that gas samples at various measuring points in the mine are conveyed to a gas analyzer through a beam tube (bundled by a single-core plastic tube), an air suction pump and a control cabinet for path-by-path analysis, concentration indexes of gases such as CO, CO2, CH4, O2, H2, N2 and the like in key areas are mastered in time, and the concentration indexes are analyzed through monitoring software, so that early prediction of spontaneous combustion and fire of the mine is realized. The beam tube monitoring system is a traditional fire early warning monitoring mode, and has the advantages that: the monitoring gas has various types, and the result is accurate and reliable. But has the following disadvantages: need lay a large amount of pipelines, not only with high costs, need meticulously maintain moreover, otherwise take place the pipeline damage easily and lead to monitoring point data inaccurate, misleading personnel judge, delay the time of robbing out of fire disaster even in the key. The monitoring period is long, and 24-hour data uploading cannot be realized; 3, the software is complex to operate, manual intervention is needed, and unattended automatic operation cannot be realized.
Disclosure of Invention
In order to solve the technical problems, the invention provides a gas monitoring analyzer and a fire early warning monitoring system.
The technical scheme of the gas monitoring analyzer is as follows:
the method comprises the following steps: a getter pump, a gas chamber and a chip;
the air suction pump is used for collecting a gas sample in the goaf and storing the gas sample in the air chamber;
the chip is used for sampling and analyzing the gas sample in the gas chamber to obtain an analysis result, and sending the analysis result to a ground monitoring host.
The gas monitoring analyzer has the following beneficial effects:
the gas monitoring analyzer collects the gas sample in the goaf through the suction pump and stores the gas sample in the gas chamber, and samples and analyzes the gas sample in the gas chamber through the chip to obtain and send an analysis result to the ground monitoring host.
On the basis of the scheme, the gas monitoring analyzer can be further improved as follows.
Further, the gas sample comprises at least one gas, and each gas corresponds to preset gas standard data.
Further, the chip is specifically configured to: and acquiring data of each gas, comparing the data of each gas with corresponding gas standard data, and generating the analysis result according to a plurality of comparison results.
Further, still include: a power supply box and a single-core beam tube; the power box is respectively connected with the air suction pump and the chip so as to supply power to the air suction pump and the chip, and the air suction pump collects the gas sample in the goaf through the single-core beam tube.
Further, the voltage input to the getter pump by the power box is 12VDC, and the voltage input to the chip by the power box is 12 VDC.
The technical scheme of the fire early warning and monitoring system is as follows:
the method comprises the following steps: the ground monitoring host and the gas monitoring analyzer provided by the invention are arranged on the ground;
the gas monitoring analyzer is used for: uploading an analysis result obtained by the gas monitoring analyzer to the ground monitoring host;
the ground monitoring host is used for: and judging whether the goaf corresponding to the gas monitoring analyzer reaches a risk early warning condition or not according to the analysis data corresponding to the analysis result, and if so, sending an early warning signal.
The fire early warning and monitoring system has the beneficial effects that:
the fire early warning monitoring system uploads the analysis result obtained by the gas monitoring analyzer to the ground monitoring host, so that the ground monitoring host judges whether the goaf corresponding to the gas monitoring analyzer reaches the risk early warning condition or not according to the analysis data corresponding to the analysis result, and if yes, an early warning signal is sent out. Therefore, the fire early warning monitoring system can monitor the natural occurrence of the coal seam in the goaf in real time on the basis of the gas monitoring analyzer, and reduce the probability of mine fire and gas explosion, thereby reducing the occurrence of mine safety accidents.
On the basis of the scheme, the fire early warning and monitoring system can be further improved as follows.
Further, the gas monitoring and analyzing device transmits data with the ground monitoring host through a ring network switch.
Furthermore, a monitoring substation is arranged between the gas monitoring analyzer and the ring network switch, so that the analysis result is transmitted to the ground monitoring host through the monitoring substation.
Further, when the number of the gas monitoring analyzers is multiple, each gas monitoring analyzer is respectively in data transmission with the ground monitoring host through the corresponding ring network switch.
Drawings
FIG. 1 is a schematic diagram of a gas monitoring analyzer according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a fire early warning and monitoring system according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a plurality of gas monitoring analyzers in a fire early warning and monitoring system according to an embodiment of the present invention.
Detailed Description
As shown in fig. 1, a gas monitoring analyzer 100 according to an embodiment of the present invention includes: getter pump 10, gas chamber 20 and chip 30;
the air suction pump 10 is used for collecting the air sample of the goaf 50 and storing the air sample in the air chamber 20;
the chip 30 is configured to sample and analyze the gas sample in the gas chamber 20 to obtain an analysis result, and send the analysis result to the ground monitoring host 200.
The getter pump 10 is a commercially available electric pump, and can suck air into the pump cavity and discharge the air through the exhaust port.
The air chamber 20 is a sealed area, and sensing elements (inductive heads) of various sensors can be stored in the air chamber, so that the sensors can conveniently acquire and analyze.
The chip 30 is equivalent to a processor, and can also be used as an analysis unit of the gas monitoring analyzer 100; the chip 30 mainly performs sampling analysis on the gas sample in the gas chamber 20 to obtain an analysis result, and sends the analysis result to the ground monitoring host 200, so that the ground monitoring host 200 can perform deep analysis conveniently.
The goaf is a cavity generated below the earth surface by artificial excavation or natural geological motion, and mainly comprises: and (4) coal goaf. Each goaf is provided with 1 monitoring point, and in the embodiment, the monitoring points are used for the air suction pump to sample the gas in the goaf.
Preferably, the gas sample comprises at least one gas, and each gas corresponds to a preset gas standard data.
Wherein, the gas sample is generated by mixing a plurality of gases in the goaf; the gas mainly comprises: methane, carbon monoxide, oxygen, carbon dioxide, nitrogen, hydrogen sulfide, and the like.
Wherein, each kind of gas corresponds a preset gas standard data specifically to be: for example, the content (concentration ratio) of methane cannot be higher than 1%, and the content (concentration ratio) of carbon dioxide cannot be higher than 0.75%, and specific values may be set by a user or set according to relevant regulations.
Preferably, the chip 30 is specifically configured to: and acquiring data of each gas, comparing the data of each gas with corresponding gas standard data to obtain a plurality of comparison results, and obtaining the analysis result according to the plurality of comparison results.
Wherein different types of sensors are utilized to acquire data corresponding to the gas. Specifically, in the gas monitoring module 31, different types of sensors perform data acquisition for each gas by a sensing element (sensing head) arranged in the gas chamber.
And if the data of any gas exceeds the standard data, the comparison result of the gas is abnormal, and otherwise, the comparison result of the gas is normal. The analysis result is information of whether the comparison result of each gas is abnormal, and if any comparison result is abnormal, the analysis result is abnormal. For example, if there are 10 kinds of gas comparison results, and if there are 2 kinds of gas comparison results that are abnormal, the analysis result is abnormal.
In addition, it should be noted that the analysis result is uploaded to the ground monitoring host computer in the gas monitoring analyzer 100 through the WiFi or 4G network.
Preferably, the method further comprises the following steps: a power supply box 60 and a single-core beam tube 40; the power box 60 is respectively connected with the air suction pump 10 and the chip 30 so as to supply power to the air suction pump 10 and the chip 30, and the air suction pump 10 collects the gas sample of the goaf 50 through the single-core beam tube 40.
The power box 60 is an external power box and is responsible for supplying power to the chip 30 and the getter pump 10.
Wherein, single core beam tube 40 is outer distribution box, and single core beam tube 40 is used for connecting aspirator pump 10 and the monitoring point of collecting space 50, and the length of single core beam tube 40 is 10 mm.
Preferably, the voltage inputted to the getter pump 10 from the power box 60 is 12VDC, and the voltage inputted to the chip 30 from the power box 60 is 12 VDC.
The gas monitoring analyzer provided by the embodiment collects the gas sample in the goaf through the suction pump and stores the gas sample in the gas chamber, and samples and analyzes the gas sample in the gas chamber through the chip to obtain and send the analysis result to the ground monitoring host.
As shown in fig. 2, a fire early warning and monitoring system according to an embodiment of the present invention includes: the surface monitoring host 200 and the gas monitoring analyzer 100 provided by the above embodiment;
the gas monitoring analyzer 100 is configured to: uploading the analysis result obtained by the gas monitoring analyzer 100 to the ground monitoring host 200;
the ground monitoring host 200 is configured to: and judging whether the goaf 50 corresponding to the gas monitoring analyzer 100 reaches a risk early warning condition according to the analysis data corresponding to the analysis result, and if so, sending an early warning signal.
The ground monitoring host 200 is a computer for acquiring data uploaded by the gas monitoring analyzer and performing deep analysis, and may also be a device having the same or similar functions, which is not limited herein.
Wherein the analytical data is data for each gas; the risk early warning conditions are as follows: the preset mode of combining multiple gases can cause judgment conditions such as spontaneous combustion of the coal bed or mine explosion, and a user can set a threshold value according to an industrial standard, and the threshold value can be specifically set according to different conditions.
When the risk early warning condition is met, the early warning signal is sent to the user through the ground monitoring host 200. The early warning signal comprises: risk category and estimated time of occurrence.
Preferably, the gas monitoring analyzer 100 performs data transmission with the ground monitoring host 200 through the ring network switch 300.
The ring network switch 300 is a special switch, mainly an industrial switch, and has high redundancy and reliability when data transmission is performed.
The working surface is an area opposite to the ground, and is an area where the gas monitoring analyzer 100 operates, for example, a goaf of a coal mine is the working surface.
Preferably, a monitoring substation 400 is disposed between the gas monitoring analyzer 100 and the ring network switch 300, so that the analysis result is transmitted to the ground monitoring host 200 through the monitoring substation 400.
Preferably, when the number of the gas monitoring analyzers 100 is plural, the plural gas monitoring analyzers 100 respectively perform data transmission with the ground monitoring host 200 through the corresponding ring network switch 300.
Specifically, as shown in fig. 3, when the number of the gas monitoring analyzers 100 is multiple, the gas data of different goafs can be collected simultaneously, so that the user can perform real-time monitoring conveniently; meanwhile, the gas monitoring analyzer 100 can be directly installed at the working face of the return air crossheading, so that the laying of pipelines is reduced.
The fire early warning monitoring system of this embodiment uploads the analysis result that gas monitoring analysis appearance obtained to ground monitoring host computer to make ground monitoring host computer according to the analysis data that the analysis result corresponds, judge whether the collecting space area that gas monitoring analysis appearance corresponds reaches the risk early warning condition, if, then send early warning signal. Therefore, the fire early warning monitoring system can monitor the natural occurrence of the coal seam in the goaf in real time on the basis of the gas monitoring analyzer, and reduce the probability of mine fire and gas explosion, thereby reducing the occurrence of mine safety accidents.
The algorithms or displays presented herein are not inherently related to any particular computer, virtual system, or other apparatus. In addition, embodiments of the present invention are not directed to any particular programming language.
In the description provided herein, numerous specific details are set forth. It is understood, however, that embodiments of the invention may be practiced without these specific details. Similarly, in the above description of exemplary embodiments of the invention, various features of the embodiments of the invention are sometimes grouped together in a single embodiment, figure, or description thereof for the purpose of streamlining the invention and aiding in the understanding of one or more of the various inventive aspects. Where the claims following the detailed description are hereby expressly incorporated into this detailed description, with each claim standing on its own as a separate embodiment of this invention.
Those skilled in the art will appreciate that the modules in the device in an embodiment may be adaptively changed and disposed in one or more devices different from the embodiment. The modules or units or components of the embodiments may be combined into one module or unit or component, and furthermore they may be divided into a plurality of sub-modules or sub-units or sub-components. Except that at least some of such features and/or processes or elements are mutually exclusive.
It should be noted that the above-mentioned embodiments illustrate rather than limit the invention, and that those skilled in the art will be able to design alternative embodiments without departing from the scope of the appended claims. In the claims, any reference signs placed between parentheses shall not be construed as limiting the claim. The word "comprising" does not exclude the presence of elements or steps not listed in a claim. The word "a" or "an" preceding an element does not exclude the presence of a plurality of such elements. The invention may be implemented by means of hardware comprising several distinct elements, and by means of a suitably programmed computer. In the unit claims enumerating several means, several of these means may be embodied by one and the same item of hardware. The usage of the words first, second and third, etcetera do not indicate any ordering. These words may be interpreted as names. The steps in the above embodiments should not be construed as limiting the order of execution unless specified otherwise.

Claims (9)

1. A gas monitoring analyzer, comprising: a getter pump, a gas chamber and a chip;
the air suction pump is used for collecting a gas sample in the goaf and storing the gas sample in the air chamber;
the chip is used for sampling and analyzing the gas sample in the gas chamber to obtain an analysis result, and sending the analysis result to a ground monitoring host.
2. The gas monitoring analyzer of claim 1, wherein the gas sample includes at least one gas, each gas corresponding to a predetermined gas standard.
3. The gas monitoring analyzer of claim 2, wherein the chip is specifically configured to: and acquiring data of each gas, comparing the data of each gas with corresponding gas standard data, and generating the analysis result according to a plurality of comparison results.
4. The gas monitoring analyzer of any of claims 1-3, further comprising: a power supply box and a single-core beam tube; the power box is respectively connected with the air suction pump and the chip so as to supply power to the air suction pump and the chip, and the air suction pump collects the gas sample in the goaf through the single-core beam tube.
5. The gas monitoring analyzer of claim 4, wherein the power supply box provides 12VDC to the getter pump and 12VDC to the chip.
6. A fire early warning monitoring system, comprising: the surface monitoring host and the gas monitoring analyzer of any one of claims 1-5;
the gas monitoring analyzer is used for: uploading an analysis result obtained by the gas monitoring analyzer to the ground monitoring host;
the ground monitoring host is used for: and judging whether the goaf corresponding to the gas monitoring analyzer reaches a risk early warning condition or not according to the analysis data corresponding to the analysis result, and if so, sending an early warning signal.
7. A fire early warning and monitoring system according to claim 6, wherein the gas monitoring analyzer is in data transmission with the ground monitoring host through a ring network switch.
8. A fire early warning and monitoring system as claimed in claim 7, wherein a monitoring substation is provided between the gas monitoring analyzer and the ring network switch, so that the analysis result is transmitted to the ground monitoring host via the monitoring substation.
9. A fire early warning and monitoring system according to claim 7 or 8, wherein when the number of the gas monitoring analyzers is plural, each gas monitoring analyzer performs data transmission with the ground monitoring host through a corresponding ring network switch.
CN202210066593.6A 2022-01-20 2022-01-20 Gas monitoring analyzer and fire early warning monitoring system Withdrawn CN114487292A (en)

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Application Number Priority Date Filing Date Title
CN202210066593.6A CN114487292A (en) 2022-01-20 2022-01-20 Gas monitoring analyzer and fire early warning monitoring system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202210066593.6A CN114487292A (en) 2022-01-20 2022-01-20 Gas monitoring analyzer and fire early warning monitoring system

Publications (1)

Publication Number Publication Date
CN114487292A true CN114487292A (en) 2022-05-13

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CN202210066593.6A Withdrawn CN114487292A (en) 2022-01-20 2022-01-20 Gas monitoring analyzer and fire early warning monitoring system

Country Status (1)

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CN (1) CN114487292A (en)

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Application publication date: 20220513