CN208254887U - A kind of gas monitoring system suitable for underground coal mine - Google Patents
A kind of gas monitoring system suitable for underground coal mine Download PDFInfo
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- CN208254887U CN208254887U CN201820577649.3U CN201820577649U CN208254887U CN 208254887 U CN208254887 U CN 208254887U CN 201820577649 U CN201820577649 U CN 201820577649U CN 208254887 U CN208254887 U CN 208254887U
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Abstract
The utility model embodiment discloses a kind of gas monitoring system suitable for underground coal mine, including for extracting coal mine underground gas gas extraction device, for the gas sensor and the controller that is connect with gas extraction device and gas sensor respectively of detection gas parameter；The automation control to gas extraction device is realized using controller.The gas outlet of gas extraction device is connect by beam tube with gas sensor.The analysis to gas multi-parameter is realized by gas sensor, compared with traditional chromatography means, fundamentally reduces cost of equipment.And gas sensor can be set in underground coal mine, greatly shorten the length of beam tube, reduce the difficulty and cost of beam tube laying.Beam tube length shortens and the beam tube between gas extraction device and gas sensor belongs to positive pressure acquisition mode, effectively reduces the risk that extraneous gas enters beam tube, improves the accuracy and jamproof ability of system.
Description
Technical field
The utility model relates to gas monitoring techniques fields, more particularly to a kind of gas-monitoring suitable for underground coal mine
System.
Background technique
Mine fire is one of coal mine major casualty, after fire occurs for underground coal mine, when using directly putting out a fire invalid, it is necessary to
Flame range is closed.In addition there is many goafs as caused by exploitation and discarded compartment roads for underground coal mine, for safety
For the sake of, these regions usually can be all closed, referred to as underground airtight area, due in citadel still with the presence of combustible,
So there are the risks of spontaneous combustion.Without electricity, calm in citadel, personnel be cannot be introduced into, so how to monitor this section situation, prevent
Only fire or other disasters occur, and just become a problem.
In the prior art, using bound polyamine technology, gas in coal mine citadel is monitored.But bound polyamine technology
It is that the gas of extraction is transported to ground, gas parameter is analyzed using equipment such as chromatography.It is poisonous and harmful to underground
Gas-monitoring must be by the way of intrinsic safety, so as this kind of powerful device such as chromatograph can not go into the well installation.To
Gas parameter is analyzed using powerful devices such as chromatographs, needs to be laid with beam tube, beam tube cloth on from underground to well
If apart from remote, project amount is big, at high cost.And it since beam tube distance is longer, is easy to receive extraneous gas in gas transmission process
Pollution, cause analysis result inaccuracy.
As it can be seen that it is how more convenient, accurately mine gas is monitored, be that those skilled in the art are urgently to be resolved
The problem of.
Utility model content
The purpose of the utility model embodiment is to provide a kind of gas monitoring system suitable for underground coal mine, can be more
It is convenient, accurately mine gas is monitored.
In order to solve the above technical problems, the utility model embodiment provides a kind of gas-monitoring suitable for underground coal mine
System, including for extracting coal mine underground gas gas extraction device, for detection gas parameter gas sensor and point
The controller not connect with the gas extraction device and the gas sensor；
The controller, for controlling the working condition of the gas extraction device；
The gas outlet of the gas extraction device is connect by beam tube with the gas sensor, and the gas for that will extract passes
It is defeated by the gas sensor.
Optionally, the gas extraction device includes beam tube, extraction air pump and the solenoid valve being set on the beam tube.
It optionally, further include cleaning air pump；
The gas outlet of the cleaning air pump is connect with the gas sensor, clear for carrying out to the gas sensor
It washes.
Optionally, solenoid valve is provided at the air inlet of the cleaning air pump.
Optionally, further include pre- extraction solenoid valve and be set to and connect the gas extraction device and the gas sensor
Extraction solenoid valve on beam tube；
The input terminal of the pre- extraction solenoid valve is connect by beam tube with the gas outlet of the gas extraction device, the pre- pumping
The output end for adopting solenoid valve is connect with exhaust outlet.
It optionally, further include the host computer that there is communication connection with the controller.
It optionally, further include the alarm being connect with the controller, for the concentration when object gas more than its correspondence
Concentration threshold when, carry out warning note.
It optionally, further include the indicator light being connect with the controller, for corresponding to the concentration according to object gas
Concentration range carries out the transformation of corresponding color.
It optionally, further include the display screen being connect with the controller, for showing the number of the gas sensor acquisition
According to.
It optionally, further include being connect with the display screen, for controlling the button of the display screen working condition.
Gas monitoring system it can be seen from above-mentioned technical proposal suitable for underground coal mine includes for extracting coal mine
The gas extraction device of lower gas, for detection gas parameter gas sensor and respectively with the gas extraction device and described
The controller of gas sensor connection；The automation control to gas extraction device working condition, Neng Gou are realized by controller
Nobody is in the case that factor participates in, and the gas in closed area is specified in automatic extraction, and can accomplish continuous extraction prison
It surveys.The gas outlet of gas extraction device is connect by beam tube with gas sensor, and the gas transport for that will extract gives the gas
Sensor.The analysis to gas multi-parameter is realized by gas sensor, compared with traditional chromatography means, from basic
On reduce cost of equipment.And gas sensor can be set in underground coal mine, greatly shortens and takes out for connecting gas
The length for adopting the beam tube of device and gas sensor greatly reduces the difficulty and cost of beam tube laying.Beam tube length shorten and
Beam tube between gas extraction device and gas sensor belongs to positive pressure acquisition mode namely beam overpressure is higher than outside atmosphere
Pressure, effectively reduces the risk that extraneous gas enters beam tube, improves the accuracy and jamproof ability of system.
Detailed description of the invention
In order to illustrate more clearly of the utility model embodiment, letter will be done to attached drawing needed in the embodiment below
Single introduction, it should be apparent that, the drawings in the following description are merely some embodiments of the present invention, general for this field
For logical technical staff, without creative efforts, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is a kind of structural representation of the gas monitoring system suitable for underground coal mine provided by the embodiment of the utility model
Figure；
Fig. 2 is a kind of gas-monitoring system for being provided with cleaning air pump and corresponding solenoid valve provided by the embodiment of the utility model
The structural schematic diagram of system.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
It clearly and completely describes, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than all real
Apply example.Based on the embodiments of the present invention, those of ordinary skill in the art without making creative work, institute
The every other embodiment obtained, belongs to scope of protection of the utility model.
In order to make those skilled in the art better understand the scheme of the utility model, with reference to the accompanying drawing and specific implementation
The utility model is described in further detail for mode.
Next, a kind of gas-monitoring system suitable for underground coal mine provided by the utility model embodiment is discussed in detail
System.Fig. 1 is a kind of structural schematic diagram of the gas monitoring system suitable for underground coal mine provided by the embodiment of the utility model, gas
It includes for extracting the gas extraction device 10 of coal mine underground gas, for the gas sensor of detection gas parameter that body, which monitors system,
11 and the controller 12 that is connect respectively with the gas extraction device 10 and the gas sensor 11.
In practical applications, controller 12 can be connect by bus with gas extraction device 10 and gas sensor 11.
Controller 12 can control the working condition of the gas extraction device 10.The number that gas sensor 11 can be will test by bus
It is transferred to controller 12 according to parameter, controller 12 can store these data parameters, in order to the analysis of subsequent calling.
Wherein, the working condition of gas extraction device 10 may include operating status and non-operating state.It is adopted when needing to extract
When the gas of sampling point, then gas extraction device 10 is adjusted to operating status；After extraction, then gas extraction device 10 is adjusted
For non-operating state.
In the utility model embodiment, detected using gas sample of the gas sensor 11 to extraction.Wherein, gas is taken out
The gas outlet for adopting device 10 is connect by beam tube with the gas sensor 11, in order to which the gas sample of extraction to be transferred to by beam tube
Gas sensor 11.
In the concrete realization, the type of gas sensor 11 can be selected according to the constituent of coal mine underground gas,
In the utility model embodiment, gas sensor 11 may include 6 parameter gas sensors and 3 parameter gas sensors, wherein 6
Parameter gas sensor is mainly for detection of carbon monoxide, methane, oxygen, carbon dioxide, hydrogen sulfide, hydrogen this 6 seed type
Gas, 3 parameter gas sensors mainly for detection of ethane, ethylene, acetylene this 3 seed type gas.In practical applications, 6
Parameter gas sensor can be passed using infrared sensor or laser sensor etc., 3 parameter gas sensors using thermal conductivity
Sensor or electrochemical sensor etc..
It should be noted that the number and type of gas sensor 11 can be set according to actual needs, this is practical
New embodiment is not specifically limited in this embodiment.
In specific lay, sampled point can be selected according to the position where underground coal mine citadel, by required detection
Citadel is as sampled point.
The citadel of underground coal mine is more, the number of corresponding sampled point can be more, therefore, in order to more rapidly and efficiently
The extraction for realizing gas, in the utility model embodiment, gas extraction device 10 can be using distributed extraction mode.Pass through one
A extraction air pump realizes the extraction to gas in multiple sampled point regions, and in order to coordinate the sequence between each sampled point, can
To be directed to each sampled point, one solenoid valve is set.Specifically, gas extraction device 10 by beam tube, extraction air pump and can be set
The solenoid valve being placed on the beam tube is composed.
It is a kind of structural schematic diagram of gas extraction device 10 by taking 8 sampled points as an example in Fig. 1, is set at each sampled point
The beam tube for being used for transmission gas is set, is that beam tube is indicated with line segment with the arrow in Fig. 1, wherein the direction of arrow indicates
The direction of gas flowing.In order to guarantee the orderly sampling of each sampled point, it is provided with a solenoid valve, on each beam tube with sampling
For point 1, the solenoid valve being arranged on beam tube can be referred to as 1 solenoid valve of sampled point.
Controller 12 carries out gas extraction to specified sampled point according to program instruction when work, at this point, at extraction air pump
In working condition, solenoid valve conduction corresponding to specified sampled point, the corresponding solenoid valve of other sampled points is closed, and guarantees extraction
Air pump one sampled point of synchronization extraction gas, to effectively extraction be avoided to cause confusion.And so on, work as needs
Gas at which sampled point of extraction, can be by the solenoid valve conduction at the sampled point, and the solenoid valve at other sampled points closes
It closes.
In the utility model embodiment, gas extraction device 10 is improved flexible arrangement, is disappeared using distributed extraction mode
Gone out the check frequency being previously present.
It is a kind of structural schematic diagram of gas extraction device 10 by taking 8 beam tube parallel arrangeds as an example in Fig. 1.Still adopted with 8
For sampling point, in the utility model embodiment, a beam tube can also be set at the air inlet of extraction air pump, and in the root
8 solenoid valves are set on beam tube, and the other end of each solenoid valve is connect with a beam tube.
In practical applications, the laying of beam tube can be carried out according to the position of sampled point.Extraction in gas extraction device 10
Air pump can be set outside the envelope wall of sampled point, to guarantee the accuracy of extraction gas sample.It, can according to the difference of sampling point position
To adjust the position of gas extraction device 10 at any time.
In view of the beam tube between extraction air pump and sampled point belongs to negative pressure transmission mode, therefore when extraction air pump is arranged
Make it as close as possible to the position of sampled point, so as to shorten the length of the beam tube between extraction air pump and sampled point, to the greatest extent
It reduces extraneous gas and enters the risk that beam tube causes gas sample to pollute.
The gas sample of extraction is transferred to gas sensor 11 by beam tube by gas extraction device 10, this section of beam tube belongs to positive pressure biography
Defeated mode, therefore the gas outside beam tube will not pollute the gas inside beam tube.It in practical applications, can be by gas sensing
Device 11 and controller 12 are mounted on the position that underground coal mine is safeguarded and observed suitable for personnel.
Gas monitoring system it can be seen from above-mentioned technical proposal suitable for underground coal mine includes for extracting coal mine
The gas extraction device of lower gas, for detection gas parameter gas sensor and respectively with the gas extraction device and described
The controller of gas sensor connection；The automation control to gas extraction device working condition, Neng Gou are realized by controller
Nobody is in the case that factor participates in, and the gas in closed area is specified in automatic extraction, and can accomplish continuous extraction prison
It surveys.The gas outlet of gas extraction device is connect by beam tube with gas sensor, and the gas transport for that will extract gives the gas
Sensor.The analysis to gas multi-parameter is realized by gas sensor, compared with traditional chromatography means, from basic
On reduce cost of equipment.And gas sensor can be set in underground coal mine, greatly shortens and takes out for connecting gas
The length for adopting the beam tube of device and gas sensor greatly reduces the difficulty and cost of beam tube laying.Beam tube length shorten and
Beam tube between gas extraction device and gas sensor belongs to positive pressure acquisition mode namely beam overpressure is higher than outside atmosphere
Pressure, effectively reduces the risk that extraneous gas enters beam tube, improves the accuracy and jamproof ability of system.
The gas sample of extraction is transferred to gas sensor 11 and tested and analyzed by gas extraction device 10, and gas sensor 11 can
To be connect with exhaust outlet, for exhaust gas to be discharged.For the process flow of exhaust gas, do not done in the utility model embodiment specific
It introduces.
Every detection for executing a sampled point gas, may remain residual gas in gas sensor 11.Work as gas
When the needs of sensor 11 detect the gas sample of new extraction, the residual gas of last detection may be mixed into the gas sample,
Lead to the accuracy decline of detection.In order to guarantee that the accuracy that gas sensor 11 detects can be right after each extraction analysis
Gas sensor 11 is cleaned.Specifically, cleaning air pump 13 can be set；The gas outlet of the cleaning air pump 13 and the gas
Body sensor 11 connects, for cleaning to the gas sensor 11.
Wherein, cleaning air pump 13 can be set in the place of underground coal mine air circulation, also can be set in coal mine,
It does not limit this.
The natural air of extraction can be transferred to gas sensor 11 by cleaning air pump 13, be realized using natural air to gas
The cleaning of body sensor 11, to guarantee that remaining gas sample is fully drained in gas sensor 11.
In order to realize that automation control cleans air pump 13, controller 12 and cleaning air pump 13 can be connected by bus.
When gas sensor 11 completes the detection to gas sample, controller 12 is by program instruction starting cleaning air pump 13.Wherein, cleaning
Time can preset, and after reaching the preset time, cleaning air pump 13 is automatically stopped work.
Since the air inlet of cleaning air pump 13 is not blocked, when cleaning air pump 13 does not work, outside air may lead to
Air inlet is crossed to penetrate into inside cleaning air pump 13.When cleaning air pump 13 is in underground coal mine, air humidity is higher, may be right
Its inner body causes adverse effect, reduces the service life of cleaning air pump 13.Cleaning air pump 13 is in the shape that do not work in order to prevent
Solenoid valve can be arranged in the entrance of extraneous gas when state at the air inlet of cleaning air pump 13.In order to on each sampled point beam tube
Solenoid valve distinguish, can will be arranged in cleaning 13 air inlet of air pump at solenoid valve be referred to as solenoid purge valve 14.
When needing to clean gas sensor 11, cleaning air pump 13 is in operating status, 14 quilt of solenoid purge valve
Conducting, cleaning air pump 13 starts to extract natural air, and natural air is transferred to gas sensor 11；When completing cleaning,
Cleaning air pump 13 and solenoid purge valve 14 can be automatically closed in controller 12, so that effectively preventing outside air enters purgative gas
Pump 13.
It is the constituent of exhaust gas, dense in view of that can remain exhaust gas in the beam tube between gas extraction device 10 and sampled point
Gas sample parameter in sampled point corresponding to the parameters such as degree and the beam tube can be deviated.Therefore, carry out gas sample extraction it
Before, it can first carry out pre- extraction.Specifically, pre- extraction solenoid valve 15 can be set, and in gas extraction device 10 and gas sensing
Extraction solenoid valve 16 is set on the beam tube between device 11；Wherein, the input terminal of the pre- extraction solenoid valve 15 passes through beam tube and institute
State the gas outlet connection of gas extraction device 10.
When needing to carry out the extraction of gas sample to sampled point, pre- extraction solenoid valve 15 is first turned on, correspondingly, extraction electromagnetism
Valve 16 is in close state, at this point, the gas sample of 10 extraction of gas extraction device is discharged by the beam tube where pre- extraction solenoid valve 15.
When the pre- extraction time to after, then close pre- extraction solenoid valve 15, and extraction solenoid valve 16 is connected, at this point, gas extraction device 10 will
The gas sample of extraction is transferred to gas sensor 11 by beam tube.
By the way that pre- extraction process is arranged, the exhaust gas in beam tube can be discharged, to guarantee to be transferred to gas sensor 11
Gas sample be gas corresponding to sampled point, effectively avoid and be mixed into exhaust gas in gas sample, cause testing result inaccurate.
It is different with solenoid valve role according to air pump in the utility model embodiment, in order to more improve gas
Cleaning air pump 13, solenoid purge valve 14, pre- extraction electromagnetism can be arranged in the function of monitoring system simultaneously in gas monitoring system
Valve 15 and extraction solenoid valve 16, the structural schematic diagram of gas monitoring system are as shown in Figure 2.
Beam tube is indicated with line segment with the arrow in Fig. 2, is provided with solenoid purge valve at the air inlet of cleaning air pump 13
14, pre- extraction solenoid valve 15 and extraction solenoid valve 16 are separately positioned on different beam tubes.Controller 12 can pass through bus point
Air pump 13, solenoid purge valve 14, pre- extraction solenoid valve 15 and extraction solenoid valve 16 Lian Jie not be cleaned, to control cleaning air pump 13
The on-off of working condition and solenoid valve.It should be noted that it is clear for attached drawing, controller 12 is not shown in Figure 2
With the connection between gas sensor 11, cleaning air pump 13, solenoid purge valve 14, pre- extraction solenoid valve 15 and extraction solenoid valve 16
Relationship.
When gas extraction device 10 works, pre- extraction solenoid valve 15 is connected, and exhaust gas is discharged by the beam tube where it；When arriving
Up to after preset time, pre- extraction solenoid valve 15 is closed, and extraction solenoid valve 16 is connected, and the gas sample of extraction is transferred to gas by beam tube
Body sensor 11；After completing extraction detection, extraction solenoid valve 16 is closed, and solenoid purge valve 14 is connected, and cleans air pump 13
It is in operating status, the natural air of extraction is exported to gas sensor 11, to realize the cleaning to gas sensor 11.
Gas sensor 11 can detecte out the parameters such as the constituent of gas sample, concentration.It is timely for the ease of staff
The gas station for understanding each sampled point of underground coal mine, controller 12 can be connect with host computer.In the concrete realization, controller
The data parameters that gas sensor 11 detects can be packaged and are sent in such a way that serial ports turns ethernet module by 12
Position machine.
Host computer can be the electronic equipment that computer used in coal mine staff etc. has processing function.
The data for each sampled point that host computer can be received with real-time display, and these data are stored in database profession,
In order to staff's calling.
The constituent of each sampled point gas is observed for the ease of staff, host computer can be automatically by each sampled point
Gas sample constituent is converted into cake chart, in order to get information about the corresponding gas of each sampled point gas sample known to staff
Constituent and ratio.
In addition, host computer can also summarize each gas parameter of each sampled point obtained in a period of time, pass through
The form of curve graph shows the situation of change of each sampled point gas sample.
Inflammable or toxic gas has been usually contained in sampled point in the composition of gas sample, it, can when these gas concentrations are excessively high
Can cause danger situation.For the ease of reminding staff in time, corresponding notification mechanisms can be set.Specifically, can be with
Alarm is set, which connect with controller 12, for when the concentration of object gas is more than its corresponding concentration threshold,
Carry out warning note.
Object gas can be previously selected inflammable or pernicious gas, for example, carbon monoxide, methane, hydrogen sulfide etc..Often
Kind object gas has its corresponding concentration threshold, when the concentration of object gas is more than its corresponding concentration threshold, then
Illustrate that the gas can generate threat to mine safety.
By warning note, the gas of underground coal mine can be carried out timely before disaster generation in order to staff
Processing, ensure that the safety of coal mine.
Gas sensor 11 and controller 12 can be set be suitable for staff safeguard and observe position, for the ease of
The state of each sampled point gas of staff's more intuitive understanding, can be set the indicator light of gaseous state, the indicator light with
The controller 12 connects, and for concentration range corresponding to the concentration according to object gas, carries out the transformation of corresponding color.
When the concentration of object gas belongs to normal concentration range, green can be presented in indicator light；When object gas
When concentration is not belonging to normal concentration range, indicator light can be become red from green.
In the concrete realization, each sampled point can be directed to, one corresponding indicator light is set, pass through indicator light colors
Variation reflect sampled point target gas levels.
It, can also be using monochromatic indicator light, for example, can be with other than it can use the indicator light with colour switching function
Two different indicator lights of color are set, and when the concentration of object gas belongs to normal concentration range, green indicator light is bright；When
When the concentration of object gas is not belonging to normal concentration range, red indicating light is bright.
By the prompt of alarm or the color of indicator light, staff can get information about sampled point object gas
Concentration levels, but the specific concentration data staff of object gas can not be known.It can be straight for the ease of staff
The constituent and concentration for the gas sample for recognizing each sampled point seen, can be set display screen.The display screen and controller 12 connect
It connects, after controller 12 gets the data of the acquisition of gas sensor 11, can be shown by display screen, in order to the people that works
Member can get information about the data parameters of each sampled point gas sample.
In view of staff can't observe always the data parameters of each sampled point gas sample, in order to reduce the function of display screen
Rate consumption, promotes the service life of display screen, can control the on-off of display screen.
And staff enters opportunity that underground coal mine is safeguarded and observed than more random, is controlled by programming automation
The on-off of display screen is unrealistic, therefore, corresponding control button can be arranged for the display screen, the button and display screen connect
It connects, for controlling the working condition of the display screen.
, can be by lower button when staff needs to know the data parameters of each sampled point gas sample, display screen quilt at this time
It opens, the data parameters that current gas sensor 11 acquires can be shown on display screen.It, can be again when staff leaves
The button is pressed, display screen is closed at this time.
It, can be in order to which staff be according to actual demand control display screen by the button of setting control display screen on-off
On-off consumes electricity when avoiding display screen standby mode.
Detailed Jie has been carried out to a kind of gas monitoring system suitable for underground coal mine provided by the utility model above
It continues.Each embodiment is described in a progressive manner in specification, the highlights of each of the examples are with other embodiments
Difference, the same or similar parts in each embodiment may refer to each other.For the device disclosed in the embodiment, by
It is corresponded to the methods disclosed in the examples in it, so being described relatively simple, reference may be made to the description of the method.
It should be pointed out that for those skilled in the art, without departing from the principle of this utility model, may be used also
With to the utility model, some improvement and modification can also be carried out, these improvement and modification also fall into the protection of the utility model claims
In range.
Claims (10)
1. a kind of gas monitoring system suitable for underground coal mine, which is characterized in that including for extracting coal mine underground gas
Gas extraction device, for detection gas parameter gas sensor and respectively with the gas extraction device and the gas sensing
The controller of device connection；
The controller, for controlling the working condition of the gas extraction device；
The gas outlet of the gas extraction device is connect by beam tube with the gas sensor, for giving the gas transport of extraction
The gas sensor.
2. gas monitoring system according to claim 1, which is characterized in that the gas extraction device includes beam tube, extraction
Air pump and the solenoid valve being set on the beam tube.
3. gas monitoring system according to claim 1, which is characterized in that further include cleaning air pump；
The gas outlet of the cleaning air pump is connect with the gas sensor, for cleaning to the gas sensor.
4. gas monitoring system according to claim 3, which is characterized in that be arranged at the air inlet of the cleaning air pump
There is solenoid valve.
5. gas monitoring system according to claim 1, which is characterized in that further include pre- extraction solenoid valve and the company of being set to
Connect the extraction solenoid valve on the beam tube of the gas extraction device and the gas sensor；
The input terminal of the pre- extraction solenoid valve is connect by beam tube with the gas outlet of the gas extraction device, the pre- extraction electricity
The output end of magnet valve is connect with exhaust outlet.
6. gas monitoring system according to claim 1, which is characterized in that further include that there is communication link with the controller
The host computer connect.
7. gas monitoring system described in -6 any one according to claim 1, which is characterized in that further include and the controller
The alarm of connection, for carrying out warning note when the concentration of object gas is more than its corresponding concentration threshold.
8. gas monitoring system described in -6 any one according to claim 1, which is characterized in that further include and the controller
The indicator light of connection carries out the transformation of corresponding color for concentration range corresponding to the concentration according to object gas.
9. gas monitoring system described in -6 any one according to claim 1, which is characterized in that further include and the controller
The display screen of connection, for showing the data of the gas sensor acquisition.
10. gas monitoring system according to claim 9, which is characterized in that further include being connect with the display screen, be used for
Control the button of the display screen working condition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820577649.3U CN208254887U (en) | 2018-04-20 | 2018-04-20 | A kind of gas monitoring system suitable for underground coal mine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820577649.3U CN208254887U (en) | 2018-04-20 | 2018-04-20 | A kind of gas monitoring system suitable for underground coal mine |
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| Publication Number | Publication Date |
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| CN208254887U true CN208254887U (en) | 2018-12-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201820577649.3U Expired - Fee Related CN208254887U (en) | 2018-04-20 | 2018-04-20 | A kind of gas monitoring system suitable for underground coal mine |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108362531A (en) * | 2018-04-20 | 2018-08-03 | 吉林省圣宜达科技有限公司 | A kind of gas monitoring system suitable for underground coal mine |
| CN111927429A (en) * | 2020-07-29 | 2020-11-13 | 北京理工大学 | Detection and early warning device and method for carbon dioxide stored in oil and gas field exploitation layer |
-
2018
- 2018-04-20 CN CN201820577649.3U patent/CN208254887U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108362531A (en) * | 2018-04-20 | 2018-08-03 | 吉林省圣宜达科技有限公司 | A kind of gas monitoring system suitable for underground coal mine |
| CN111927429A (en) * | 2020-07-29 | 2020-11-13 | 北京理工大学 | Detection and early warning device and method for carbon dioxide stored in oil and gas field exploitation layer |
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