CN104083841B - It is a kind of for mine and the fire prevention and control system and method for underground pipe network - Google Patents
It is a kind of for mine and the fire prevention and control system and method for underground pipe network Download PDFInfo
- Publication number
- CN104083841B CN104083841B CN201410356754.0A CN201410356754A CN104083841B CN 104083841 B CN104083841 B CN 104083841B CN 201410356754 A CN201410356754 A CN 201410356754A CN 104083841 B CN104083841 B CN 104083841B
- Authority
- CN
- China
- Prior art keywords
- gas
- mine
- fiber
- optical fiber
- fire
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Measuring Temperature Or Quantity Of Heat (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
It is of the invention for mine and the fire prevention and control system of underground pipe network, including fiber-optic fiber gas analysis module and optical fiber sensing module etc., wherein fiber-optic fiber gas analysis module and optical fiber sensing module is used for warning system and fire extinguishing system input tested gas componant, concentration, temperature and positional information；The fiber-optic fiber gas analysis module includes gas analysis arrangement, signal optical fibre and gas detecting terminal, for obtaining relevant position gas sample.Beneficial effect is that system combines gas analysis system and temperature analysis system, can more fully obtain early warning information.Gas analysis system uses spectral absorption method, according to the concentration of specific gas in the spectrum analysis mine for reflecting；Temperature analysis system employs Raman distributed temperature monitoring technique, can accomplish simultaneously：Mine ignition point is accurately positioned, engineering construction is simple, the many-side such as passive (underground does not power), seamless, real-time, reliable monitoring temperature.
Description
Technical field
The invention belongs to the fire Control Technology such as mine and underground pipe network field, it is related to a kind of based on using spectral absorption gas
The fire monitoring technology and combination fire alarm and fire extinguishing system of bulk concentration detection technique and distributed temperature monitoring technology
Automatic prevention and control system and the automatic preventing control method based on above-mentioned automatic prevention and control system.
Background technology
Mine fire is one of the five big disasters in colliery, and it not only results in the loss of coal resources, upsets every production
Linking deployment, but also can cause gas and dust explosion, serious harm mine safety production and Business Economic Benefit, cause huge
Loss.Flammable or combustion-supporting O in the cause of mine fire mainly ore deposit and hoistway air2、CO、CO2、H2S and CH4Deng
After the concentration of gas reaches certain limit, and reach certain temperature conditionss and formed.In colliery, the gas particularly in goaf
Bulk concentration and temperature are an absolutely essential indexs for reflecting that spontaneous combustion in goaf is dangerous.Before fire or fire generating process
The rising of the middle mutation and temperature for necessarily having a gas concentration, if can in real time gapless measure each disaster hidden-trouble point gas it is dense
Degree and temperature, it is possible to realize fire prevention.Except mine fire, the pipe network system for being present in underground there is also similar feelings
Condition.
Current coal mine fire alarm mainly uses two methods：1) the analysis gas componant of disaster hidden-trouble point and dense
Degree, such as：Beam tube gas analysis system, artificial local gas sampling analysis method etc.；2) temperature monitoring method for early warning, such as：Coal
Charcoal autoignition temperature probe method and infrared detecting method etc..The Period of Coal Seam Spontaneous Combustion early warning technologies such as the various goafs for using at present are all deposited
In certain defect, the need for far can not also meeting mine fire early warning, can not all accomplish simultaneously：Quick analysis, monitoring
Mine gas concentration and mine ignition point is accurately positioned, engineering construction is simple, passive (underground does not power), it is seamless, real-time,
The many-sides such as reliable monitoring temperature.
The content of the invention
The invention aims to solve existing coal mine and similar underground pipe network fire alarm method reality
When property is poor, stationkeeping ability poor and the deficiencies such as prevention and control that can not link, it is proposed that a kind of fire for being mainly used in mine and underground pipe network
Calamity prevention and control system and the automatic preventing control method based on above-mentioned automatic prevention and control system.
The technical scheme is that：It is a kind of for mine and the fire prevention and control system of underground pipe network, including warning system,
Fire extinguishing system, fiber-optic fiber gas analysis module and optical fiber sensing module, the fire extinguishing system include fire extinguishing control main frame, fire extinguishing
The controlling bus of device and connection fire extinguishing control main frame and extinguishing device, extinguishing device is located in mine hoistway or underground pipe network
And in mine goaf；
Characterized in that, the fiber-optic fiber gas analysis module and optical fiber sensing module are used for warning system and fire extinguishing
System input tested gas componant, concentration, temperature and positional information；The fiber-optic fiber gas analysis module sets including gas analysis
Standby, signal optical fibre and gas detecting terminal, wherein signal optical fibre and gas detecting terminal are located in mine hoistway or underground pipe network
And in mine goaf, for obtaining relevant position gas sample；Optical fiber sensing modular terminal is located at mine hoistway or ground
In lower pipe network and in mine goaf.
Further, the detection of gas terminal includes three port circulators, detection optical fiber and porous air chamber, detection optical fiber
For being input into exploring laser light to porous air chamber and setting the gas analysis that module is returned by the Laser feedback after the absorption of porous air chamber
Standby, the second port of circulator is connected with signal optical fibre, and first port and the 3rd port connect many by detection optical fiber respectively
The output end and input of hole air chamber.
Further, the detection of gas terminal also includes the aspiration pump of connection inertia source of the gas, for blowing afloat powder in air chamber
Dust is reversely siphoned away after dirt, air chamber cleaning is kept.
Further, the detection of gas terminal A in mine hoistway or underground pipe network is different from being located at mine goaf
Interior detection of gas terminal B；Terminal A includes three port circulators, detection optical fiber and porous air chamber, and detection optical fiber is used for porous
Air chamber is input into exploring laser light and the gas analysis arrangement of module will be returned by the Laser feedback after the absorption of porous air chamber, circulator
Second port is connected with signal optical fibre, and first port and the 3rd port connect the output of porous air chamber by detection optical fiber respectively
End and input；Terminal B includes terminal A and the aspiration pump being connected with porous air chamber in terminal A, and the aspiration pump connects inertia
Source of the gas.
Further, above-mentioned inertia source of the gas is nitrogen.
Fire preventing control method, it is characterised in that comprise the following steps：
S1, use the fiber-optic fiber gas analysis module in system and optical fiber sensing module that secure threshold is set；
S2, control laser in fiber-optic fiber gas analysis module circulate successively send centre wavelength in step S1 gas absorb
The corresponding pulse in peak, and determine whether the real-time concentration value of corresponding gas surmounts secure threshold according to reflectance spectrum；
Whether S3 detection temperatures synchronous with step S2 surmount secure threshold；
S4, if testing result in step S2 or S3 surmounts secure threshold start warning system and fire extinguishing system, otherwise
Continue to detect.
Beneficial effects of the present invention：Fire prevention and control system of the invention, combines gas analysis system and temperature analysis system
System, can more fully obtain early warning information.Gas analysis system uses spectral absorption method, according to the spectrum analysis ore deposit for reflecting
The concentration of specific gas in well；Temperature analysis system employs Raman distributed temperature monitoring technique, can accomplish simultaneously：To mine
Ignition point is accurately positioned, and engineering construction is simple, and passive (underground does not power), seamless, real-time, reliable monitoring temperature etc. are multi-party
Face.Underground gas with various concentration and the temperature of underground that fire prevention and control System and method for analysis proposed by the present invention is obtained, if gas
Bulk concentration exceedes default scope or temperature exceedes preset value, and just triggering alarm, realizes the early warning of fire, and propose handle
Early warning signal and extinguishing device linkage are got up, and make it possible the real-time prevention and control of fire.
Brief description of the drawings
Fig. 1 is fire prevention and control system architecture diagram of the invention；
Fig. 2 is a specific embodiment of detection of gas terminal in fire prevention and control system of the invention；
Fig. 3 is the another specific embodiment of detection of gas terminal in fire prevention and control system of the invention.
Specific embodiment
Following examples of the invention are principles of the invention and design, below in conjunction with the accompanying drawings and specific embodiment
The invention will be further elaborated.
As shown in Figures 1 and 2, the fire prevention and control system for mine and underground pipe network of the present embodiment includes that alarm is
System, fire extinguishing system, fiber-optic fiber gas analysis module and optical fiber sensing module, the fire extinguishing system include fire extinguishing control main frame,
The controlling bus of extinguishing device and connection control main frame and extinguishing device, extinguishing device is located in mine hoistway or underground pipe network
And in mine goaf；The fiber-optic fiber gas analysis module and optical fiber sensing module are used for warning system and fire extinguishing system
Input tested gas componant, concentration, temperature and positional information；The fiber-optic fiber gas analysis module includes gas analysis arrangement, letter
Number optical fiber and gas detecting terminal, wherein signal optical fibre are arranged in mine hoistway or underground pipe network, and detection of gas terminal is located at
In mine hoistway or underground pipe network and in mine goaf, for obtaining relevant position gas sample；Optical fiber sensing module
Terminal is located in mine hoistway or underground pipe network and in mine goaf.It is below a kind of concrete form of detection of gas terminal,
Including three port circulators, detection optical fiber and porous air chamber, detection optical fiber is used to be input into exploring laser light and will be through to porous air chamber
The Laser feedback crossed after porous air chamber absorbs returns the gas analysis arrangement of module, and the second port of circulator is connected with signal optical fibre
Connect, first port and the 3rd port connect the output end and input of porous air chamber by detection optical fiber respectively.
As shown in figure 3, preferably, the detection of gas terminal of the present embodiment includes three port circulators, detection light
Fine and porous air chamber, detection optical fiber is used for porous air chamber input exploring laser light and the laser after porous air chamber absorbs is anti-
The gas analysis arrangement of module is fed back to, the second port of circulator is connected with signal optical fibre, first port and the 3rd port are divided
The output end and input of porous air chamber are not connected by detection optical fiber.The detection of gas terminal also includes connection inertia source of the gas
Aspiration pump, dust is reversely siphoned away after gas house dust for blowing afloat, keep air chamber cleaning.It is colliery that the detection of gas terminal is
Goaf is specially designed, and its advantage is pumping after reversely inflation, keeps the cleaning inside gas detector.
Because aspiration pump considerably increases equipment cost, so, it is not complete in mine as the preferred embodiment of the system
It is complete to use the detection of gas terminal with high pressure inert source of the gas, and only used in the more mine goaf of dust.
The fire preventing control method of the embodiment of the present invention, comprises the following steps：S1, fiber-optic fiber gas in system are used to analyze mould
Block and optical fiber sensing module set secure threshold, and the secure threshold includes O2>=20%, CO≤0.0024%, CO2≤
0.5%, H2S≤0.00066%, CH4≤ 4%；Laser circulates the center of sending successively in S2, control fiber-optic fiber gas analysis module
Wavelength be step S1 in the corresponding pulse of gas absworption peak, and according to reflectance spectrum determine corresponding gas real-time concentration value whether
Surmount secure threshold；Whether S3 detection temperatures synchronous with step S2 surmount secure threshold；If detected in S4, step S2 or S3
Result surmounts secure threshold and then starts warning system and fire extinguishing system, otherwise continues to detect.It is worth noting that, above-mentioned safety threshold
Value is the concrete example of the present embodiment, not limiting the scope of the present invention, and above-mentioned threshold value can be done in engineering practice
Appropriate adjustment, reference factor is put into practice than early warning if necessary, safe class etc., belongs to the common knowledge of this area, therefore herein not
Describe in detail.
The preferred embodiment of mine is below applied to for system of the invention：
The fire prevention and control system of the present embodiment includes gas analysis system and temperature analysis system (fiber-optic fiber gas analysis module
With optical fiber sensing module) two systems.This two systems shares alarm, fire extinguishing control main frame, extinguishing device control always
Line and extinguishing device.In addition, gas analysis system is also comprising gas analysis arrangement, the light through full well on well
Cable 1 (signal optical fibre), gas detector (detection of gas terminal) A and B, temperature analysis system is also comprising the temperature in coal mine
Degree analytical equipment, the optical cable 2 through full well.Optical cable 1 and optical cable 2 synthesize an optical cable on well, it is also possible to separately wiring, are letter
Just, this patent is 2-in-1 into one by optical cable 1 and optical cable in narration.Due to above-mentioned fire extinguishing control main frame, extinguishing device, alarm
And gas analysis arrangement, the temperature analysis equipment on well etc. belongs to prior art, therefore it is not detailed herein.
Its mine fire preventing control method detailed process is as follows：1) gas analysis arrangement is anti-in detection of gas terminal by analyzing
The concentration that next spectrum obtains underground gas with various is emitted back towards, if O2、CO、CO2、H2S、CH4Concentration Deng gas is not in the model of setting
In enclosing, fire alarm signal (including the gas of concentration abnormality, and its place) is just produced, trigger alarm, realize the pre- of fire
It is alert；2) early warning signal (including the gas of concentration abnormality, and its place) is sent to fire extinguishing control main frame by gas analysis arrangement, is gone out
Fiery control main frame controls the extinguishing device near the place to go fire extinguishing by extinguishing device controlling bus, finally realizes the anti-of fire
Control.In the fire preventing control method of the present embodiment, temperature analysis method is comprised the following steps：1) temperature analysis equipment is using Raman point
Cloth temperature monitoring technique ROTDR monitoring temperatures, if the temperature for collecting exceedes the threshold value of setting, just produce fire alarm signal
(including temperature, and the corresponding place of the temperature), alarm is triggered, realize the early warning of fire；2) temperature analysis equipment is early warning
Signal (including temperature, and the corresponding place of the temperature) fire extinguishing control main frame is sent to, fire extinguishing control main frame passes through extinguishing device
Controlling bus control the extinguishing device near the place to go fire extinguishing, finally realize the prevention and control of fire.
It is below principle of the invention：According to Lambert-Bill law, every kind of gas has inherently gas analysis system
Absorption spectrum, when the launch wavelength of light source matches with the absorbing wavelength of gas, RESONANCE ABSORPTION will occur, it absorbs strong
Degree is relevant with the concentration of gas, so can be obtained by the concentration of certain gas according to reflectance spectrum.Under mine, it is primarily upon
Gas be O2、CO、CO2、H2S、CH4, so using the laser of Wavelength tunable, gas analysis arrangement in gas analysis system
The concentration of underground gas with various is obtained by analyzing the spectrum reflected in gas detector A1 types, A2 types, if O2、CO、
CO2、H2S、CH4The concentration of gas produced not in the range of setting, just fire alarm signal (including the gas of concentration abnormality, and
Its place), alarm is triggered, the early warning of fire is realized, then gas analysis arrangement is early warning signal (including the gas of concentration abnormality
Body, and its place) fire extinguishing control main frame is sent to, fire extinguishing control main frame is controlled near the place by extinguishing device controlling bus
Extinguishing device go fire extinguishing, finally realize the prevention and control of fire.
Specifically, the gas O paid close attention under above-mentioned mine2、CO、CO2、H2S、CH4Absorption spectrum characteristic absorption peak wavelength point
It is not 759nm-763nm, 1567nm, 1573nm, 1578nm, 1665nm.Therefore, the laser circulation of above-mentioned Wavelength tunable sends
Centre wavelength is 763nm, the pulse of 1567nm, 1573nm, 1578nm, 1665nm.
A kind of structure of above-mentioned gas detecting terminal A is as shown in Figure 2：Comprising a circulator, the porous air chamber of surface band,
Air chamber outside is optical cable.
That filled to chamber inflated in detection of gas terminal B is N2Or inert gas, with pumping pumping after dust is blown afloat
Go out the air with dust, air chamber is kept clean, inflation interval time determines according to the concrete condition of each ore deposit.Colliery is mined out
Dust is more in area, and detection of gas terminal B is that, for goaf is specially designed, its advantage is pumping after reversely inflation, keeps gas
The cleaning of room.
Compared with existing colliery beam tube system, advantage is gas analysis system in the present invention：1) need not be over long distances
Pumping, analysis is more accurate, faster, with more real-time；2) easily extension.Temperature analysis system uses Raman distributed thermometry
ROTDR (Raman Optical Time Domain Reflectometer), obtains the temperature of temperature measuring optical cable each point in real time.
When fire occurs, just mine ignition point can accurately be positioned.If the temperature that temperature analysis monitoring of equipment is obtained exceedes
Default threshold temperature (80 DEG C), just produces fire alarm signal (including temperature, and the corresponding place of the temperature), triggering alarm
Device, realizes the early warning of fire；This signal (including temperature, and the corresponding place of the temperature) is sent to fire extinguishing control master simultaneously
Machine, it passes through extinguishing device controlling bus and controls the extinguishing device near the place to put out a fire, and realizes the control of fire.Above-mentioned two step
It is achieved that the real-time prevention and control of fire.Above-mentioned optical cable laying is in track lane；Above-mentioned extinguishing device controlling bus are with optical cable laying；
Above-mentioned extinguishing device is distributed in extinguishing device controlling bus at interval of 50m.
Specifically, it is 1550nm, laser pulse that laser produces the centre wavelength of pulse in said temperature analytical equipment
10ns, line width 2nm.
Understand for convenience, the principle of existing Raman distributed thermometry ROTDR is derived as follows：
Stokes Raman and anti-Stokes the Raman scattered photon numbers of local are respectively at optical fiber L：
NS=KSSfs 4NC exp[-(a0+as)L]RS(T)
Na=KaSfa 4NC exp[-(a0+aa)L]Ra(T)
Wherein, coefficient Ks, Ka relevant with optical fiber Stokes and anti-Stokes Raman scattering sections；S is optical fiber
The backscattering factor；Fs, fa are Stokes and anti-Stokes Raman scattered photon frequencies；Nc is in optical fiber incidence end
Laser pulse number of photons；T is absolute temperature；a0、asAnd aaRespectively incident light, Stokes Raman scatter light and anti-
Stokes Raman scatter the fiber transmission attenuation of light frequency；L is the length at optical fiber local to be measured；Rs (T), Ra (T) and light
The fine molecule low-lying level coefficient relevant with the i on population on high level, and have：
RS(T)=[1-exp (- h Δ f/kT)]-1
Ra(T)=[exp (h Δ f/kT) -1]-1
Wherein h is Planck's constant；K is Boltzmann constant, and Δ f is Raman Phonon frequency.
Demodulation method is：Anti-Stokes Raman scattering curves are demodulated with Stokes Raman scattering curves：
Wherein Ia, IsThe light intensity of light is scattered for Stokes Raman light and anti-Stokes Raman.
Work as T=T0When (reference temperature), above formula can be written as：
Above-mentioned two formula is divided by and can be obtained by temperature T:
One of ordinary skill in the art will be appreciated that embodiment described here is to aid in reader and understands this hair
Bright principle, it should be understood that protection scope of the present invention is not limited to such especially statement and embodiment, especially this hair
Bright fire prevention and control system is not limited to mine and underground pipe network in application aspect, is applied in other any conjunctions also dependent on needs
Suitable occasion.One of ordinary skill in the art can make various not departing from originally according to these technical inspirations disclosed by the invention
Other various specific deformations and combination of essence are invented, these deformations and combination are still within the scope of the present invention.
Claims (4)
1. a kind of for mine and the fire prevention and control system of underground pipe network, including the analysis of warning system, fire extinguishing system, fiber-optic fiber gas
Module and optical fiber sensing module, the fire extinguishing system include fire extinguishing control main frame, extinguishing device and connection fire extinguishing control
The controlling bus of main frame and extinguishing device, extinguishing device is located in mine hoistway or underground pipe network and in mine goaf；
Characterized in that, the fiber-optic fiber gas analysis module and optical fiber sensing module are used for warning system and fire extinguishing system
Input tested gas componant, concentration, temperature and positional information；The fiber-optic fiber gas analysis module includes gas analysis arrangement, letter
Number optical fiber and gas detecting terminal, wherein signal optical fibre and gas detecting terminal are located in mine hoistway or underground pipe network and mine
In goaf, for obtaining relevant position gas sample；Optical fiber sensing modular terminal is located at mine hoistway or underground pipe network
In and mine goaf in；
The detection of gas terminal includes three port circulators, detection optical fiber and porous air chamber, and detection optical fiber is used for porous gas
Room is input into exploring laser light and the gas analysis arrangement of module, the of circulator will be returned by the Laser feedback after the absorption of porous air chamber
Two-port netwerk is connected with signal optical fibre, and first port and the 3rd port connect the output end of porous air chamber by detection optical fiber respectively
And input；
The detection of gas terminal also include connection inertia source of the gas aspiration pump, for blowing afloat gas house dust after reversely siphon away powder
Dirt, keeps air chamber cleaning.
2. fire prevention and control system according to claim 1, it is characterised in that the gas in mine hoistway or underground pipe network
Body detecting terminal A is different from the detection of gas terminal B in mine goaf；Terminal A includes three port circulators, detection light
Fine and porous air chamber, detection optical fiber is used for porous air chamber input exploring laser light and the laser after porous air chamber absorbs is anti-
The gas analysis arrangement of module is fed back to, the second port of circulator is connected with signal optical fibre, first port and the 3rd port are divided
The output end and input of porous air chamber are not connected by detection optical fiber；Terminal B include terminal A and with porous air chamber in terminal A
The aspiration pump being connected, the aspiration pump connects inertia source of the gas.
3. fire prevention and control system according to claim 2, it is characterised in that inertia source of the gas is nitrogen.
4. a kind of fire preventing control method based on fire prevention and control system described in claim 1 or 2, it is characterised in that including following
Step：
S1, use the fiber-optic fiber gas analysis module in fire prevention and control system and optical fiber sensing module that secure threshold is set；
S2, controlling laser in fiber-optic fiber gas analysis module to circulate successively, to send centre wavelength be gas absworption peak pair in step S1
The pulse answered, and determine whether the real-time concentration value of corresponding gas surmounts secure threshold according to reflectance spectrum；
Whether S3 detection temperatures synchronous with step S2 surmount secure threshold；
S4, if testing result in step S2 or S3 surmounts secure threshold start warning system and fire extinguishing system, otherwise continue
Detection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410356754.0A CN104083841B (en) | 2014-07-25 | 2014-07-25 | It is a kind of for mine and the fire prevention and control system and method for underground pipe network |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410356754.0A CN104083841B (en) | 2014-07-25 | 2014-07-25 | It is a kind of for mine and the fire prevention and control system and method for underground pipe network |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104083841A CN104083841A (en) | 2014-10-08 |
| CN104083841B true CN104083841B (en) | 2017-06-16 |
Family
ID=51631661
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410356754.0A Expired - Fee Related CN104083841B (en) | 2014-07-25 | 2014-07-25 | It is a kind of for mine and the fire prevention and control system and method for underground pipe network |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104083841B (en) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105999584A (en) * | 2016-06-15 | 2016-10-12 | 广东红海湾发电有限公司 | Method and system for protecting coal yard against spontaneous combustion through boiler smoke |
| CN106370623B (en) * | 2016-10-21 | 2023-10-24 | 中国矿业大学(北京) | Mine post-disaster environmental gas remote sensing equipment |
| CN106485867B (en) * | 2016-10-21 | 2021-02-02 | 中国矿业大学(北京) | Multi-parameter mine external cause fire monitoring and alarming system |
| CN106640195B (en) * | 2016-10-21 | 2020-11-27 | 中国矿业大学(北京) | Mine explosion monitoring and alarming system |
| CN106355818B (en) * | 2016-10-21 | 2021-03-30 | 中国矿业大学(北京) | Mine goaf fire monitoring and early warning device |
| CN106448020B (en) * | 2016-10-21 | 2021-02-02 | 中国矿业大学(北京) | Mine external fire monitoring and alarming system |
| CN106323912B (en) * | 2016-10-21 | 2023-11-17 | 中国矿业大学(北京) | Multi-parameter mine post-disaster environmental gas remote sensing equipment |
| CN106384469A (en) * | 2016-11-09 | 2017-02-08 | 上海腾盛智能安全科技股份有限公司 | Fire self-rescuing device based on optical fiber |
| CN110907397A (en) * | 2019-12-19 | 2020-03-24 | 山东光安智能科技有限公司 | ARM-based underground laser multi-gas beam tube sampling system |
| CN111322104B (en) * | 2020-02-26 | 2021-08-06 | 河南理工大学 | Intelligent fire extinguishing device for underground roadway |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4839527A (en) * | 1986-10-28 | 1989-06-13 | Alan Leitch | Optical-fibre smoke detection/analysis system |
| CN201210140Y (en) * | 2008-06-09 | 2009-03-18 | 中国科学技术大学 | Multi-parameter laser wavelength modulation spectrum detection apparatus used in fire field |
| CN101393444A (en) * | 2008-10-31 | 2009-03-25 | 上海华魏自动化设备有限公司 | Combined monitoring system |
| CN101545856A (en) * | 2009-04-30 | 2009-09-30 | 山东省科学院激光研究所 | Fibre optic gas detector for fire hazard of coal gab area |
| CN203299983U (en) * | 2013-06-08 | 2013-11-20 | 李儒峰 | Optical fiber sensing technology-based fiber monitoring system in coal mined-out area |
| CN103528951A (en) * | 2013-10-25 | 2014-01-22 | 中国矿业大学 | Roadway gas monitoring system based on optical fiber grating sensing technology |
| CN203564686U (en) * | 2013-11-18 | 2014-04-30 | 山东国泰科技有限公司 | Full-intelligent fire-alarm control system for mine |
| CN203971261U (en) * | 2014-07-25 | 2014-12-03 | 电子科技大学 | For the fire prevention and control system of mine and underground pipe network |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10111640A1 (en) * | 2001-03-10 | 2002-10-02 | Airbus Gmbh | Procedure for the detection and reporting of overheating and fires in an aircraft |
| JP2007108964A (en) * | 2005-10-12 | 2007-04-26 | Sumitomo Electric Ind Ltd | Guide system and guide method |
| KR101048357B1 (en) * | 2009-02-06 | 2011-07-14 | 주식회사 휴텍이일 | Fire control device and method for rolling stock |
-
2014
- 2014-07-25 CN CN201410356754.0A patent/CN104083841B/en not_active Expired - Fee Related
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4839527A (en) * | 1986-10-28 | 1989-06-13 | Alan Leitch | Optical-fibre smoke detection/analysis system |
| CN201210140Y (en) * | 2008-06-09 | 2009-03-18 | 中国科学技术大学 | Multi-parameter laser wavelength modulation spectrum detection apparatus used in fire field |
| CN101393444A (en) * | 2008-10-31 | 2009-03-25 | 上海华魏自动化设备有限公司 | Combined monitoring system |
| CN101545856A (en) * | 2009-04-30 | 2009-09-30 | 山东省科学院激光研究所 | Fibre optic gas detector for fire hazard of coal gab area |
| CN203299983U (en) * | 2013-06-08 | 2013-11-20 | 李儒峰 | Optical fiber sensing technology-based fiber monitoring system in coal mined-out area |
| CN103528951A (en) * | 2013-10-25 | 2014-01-22 | 中国矿业大学 | Roadway gas monitoring system based on optical fiber grating sensing technology |
| CN203564686U (en) * | 2013-11-18 | 2014-04-30 | 山东国泰科技有限公司 | Full-intelligent fire-alarm control system for mine |
| CN203971261U (en) * | 2014-07-25 | 2014-12-03 | 电子科技大学 | For the fire prevention and control system of mine and underground pipe network |
Non-Patent Citations (1)
| Title |
|---|
| 煤矿安全检测线***中甲烷气体检测仪的研制;徐珍;《中国优秀硕士学位论文全文数据库 工程科技Ⅰ辑》;20120115;第B021-118页，第36页 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104083841A (en) | 2014-10-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104083841B (en) | It is a kind of for mine and the fire prevention and control system and method for underground pipe network | |
| CN203971261U (en) | For the fire prevention and control system of mine and underground pipe network | |
| CN201654940U (en) | Aspiration gas detecting system | |
| CN102117528B (en) | Dynamic feedback type tunnel fire intelligent evacuating and rescuing system based on digitizing technique | |
| CN106640195B (en) | Mine explosion monitoring and alarming system | |
| CN209621401U (en) | A kind of early warning system based on thermo parameters method formula fiber-optic monitoring | |
| CN103175788A (en) | Terahertz detection device for detecting water content of high water content crude oil | |
| CN103884666A (en) | Distributed-type laser combustible gas concentration monitoring method and device | |
| CN110631682A (en) | Strain safety monitoring method for cable tunnel bearing body | |
| CN102128812B (en) | Laser remote energy supply-based device and method for detecting trace gas | |
| CN107246281B (en) | Monitoring and early warning system for fire in mine | |
| Aiuppa et al. | New advances in dial-lidar-based remote sensing of the volcanic CO2 flux | |
| CN110702625A (en) | Coal mine spontaneous ignition prevention monitoring system based on optical fiber sensing and laser spectrum analysis | |
| CN203720081U (en) | Gas parameter multipoint sensing and measurement type light path structure for laser absorption spectroscopy | |
| DE102014001704B4 (en) | gas detection device | |
| CN102928083A (en) | Forest fireproofing infrared thermometer and temperature measurement method thereof | |
| CN103883353A (en) | Distribution laser gas purely passive warning and monitoring device | |
| CN205823340U (en) | A kind of digitized beam tube fire monitoring system | |
| US10466134B2 (en) | Methods for detecting leaks in pipelines | |
| JPWO2019116725A1 (en) | In-tunnel fire control system | |
| CN205537775U (en) | Colliery gas density and temperature measuring system based on optical fiber sensing | |
| CN210889031U (en) | Colliery is belt fire early warning system in pit | |
| CN205103145U (en) | All -round detection device of indoor gas | |
| CN110500138A (en) | A kind of underground coal mine belt fire early-warning system | |
| CN1963462A (en) | Laser monitoring system for gas |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170616 Termination date: 20200725 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |