CN103198604B - A kind of device and method promoting gas in mine pipeline fire detector reliability - Google Patents
A kind of device and method promoting gas in mine pipeline fire detector reliability Download PDFInfo
- Publication number
- CN103198604B CN103198604B CN201310108896.0A CN201310108896A CN103198604B CN 103198604 B CN103198604 B CN 103198604B CN 201310108896 A CN201310108896 A CN 201310108896A CN 103198604 B CN103198604 B CN 103198604B
- Authority
- CN
- China
- Prior art keywords
- infrared
- chip microcomputer
- quartz window
- receiving tube
- signal
- 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.)
- Active
Links
Landscapes
- Fire-Detection Mechanisms (AREA)
Abstract
The present invention relates to gas detonation moment ultraviolet, the detection of infrared radiation and fire alarm export, particularly a kind of device and method promoting gas in mine pipeline fire detector reliability, it is characterized in that: comprise detector housing, detector housing indoor design has single-chip microcomputer, ultraviolet sensitivity unit, infrared-sensitive unit, quartz window, in quartz window, outside has infrared receiving tube and infrared transmitting tube respectively, ultraviolet sensitivity unit, infrared-sensitive unit, infrared receiving tube and infrared transmitting tube are electrically connected with single-chip microcomputer respectively, single-chip microcomputer launches infrared light by controlling infrared transmitting tube in quartz window, the infrared light that the infrared transmitting tube that single-chip microcomputer is received by detection infrared receiving tube sends, to determine the light transmission of quartz window, if pollute and be greater than alarm threshold value, then provide pollution cue immediately, the alarm threshold value of single-chip microcomputer setting ultraviolet sensitivity unit and infrared-sensitive unit, by detecting the ultraviolet 0.2 μm and the signal amplitude of infrared 2.7 μm that the burning of outside methane gas produces, provide fire alarm.For the deflagration phenomenon occurred in the fire that may occur in quick detection coal mine environment or gas pipeline, prevent fire or gas detonation from damaging colliery and personal safety.
Description
Technical field
The present invention relates to gas detonation moment ultraviolet, the detection of infrared radiation and fire alarm to export, particularly a kind of device and method promoting gas in mine pipeline fire detector reliability, for the deflagration phenomenon occurred in the fire that may occur in quick detection coal mine environment or gas pipeline, prevent fire or gas detonation from damaging colliery and personal safety.
Background technology
The particularly serious gas explosion accident of China frequently occurs in recent years, all illustrates great concern both at home and abroad to this, prevents the generation of gas accident from having become the top priority ensureing Safety of Coal Mine Production.Meanwhile, coal-bed gas (coal-seam gas) is as a kind of high-quality, high heat, cleaning, easily " green " energy, and importance of its exploitation is just starting as people are familiar with.
Coal and non-coal safety is adopted Theory and technology altogether and is suggested and obtains larger development in recent years, in the process that coal and non-coal safety is adopted altogether, gas certainly will be caused to gather in the middle of extraction equipment or extraction tunnel, how adopting an effective measure and prevent gas from blasting in extraction process, is the important topic that coal and non-coal safety adopts theoretical and technological studies altogether.
The research of the gas explosion mechanism of transmission and harm is shown, gas temperature, flame velocity etc. after gas explosion positive pressure of shock wave, shock velocity, ripple, in a quite long segment distance, all there is huge destruction, realize gas datonation-inhibition in early days, datonation-inhibition probability can be increased, reduce blast coverage, reduce because of the loss caused of exploding.
Mainly there are following 3 technical barriers in the early stage datonation-inhibition technology of current gas: the research and development 1, detecting gas explosion sensitive period and highly-sensitive detector in time; 2, there are the research and development of the super-fine material of the datonation-inhibition function of explosion arrestment; 3, in blast sensitive period instantaneous injection explosion-suppressing material technology and the research and development of high reliability equipment.Down-hole environment is artificial light simultaneously, bias light is single, be easy to the abnormal optical radiation signal that identification produces because of gas explosion, therefore for gas explosion particularly optical signature in sensitive period in early stage, development responds fast, the optical detector of accurate detection has definitely important meaning.
The underground explosion-proof mode that China's tradition uses is the passive type such as explosion-proof rock dust barrier and explosion-proof water barrier flame proof mode, and practical studies proves, when gas and dust explosion intensity is very weak, the measure of passive type flame proof was lost efficacy, and the continuation of explosive flame namely can not be stoped to propagate; Simultaneously due in onsite application process, the reasons such as evaporation, coal dust pollution, moisture cake of ventilating, are difficult to the flame proof effect playing expection.
Summary of the invention
The object of this invention is to provide a kind of device and method promoting gas in mine pipeline fire detector reliability, so that for the specific environment of coal-mine gas pipeline, work reliably and with long-term and quick and precisely can detect the detector of flame spectrum radiation, meeting coal mine environment and install and the structural design of job requirement.
The object of the present invention is achieved like this, a kind of device promoting gas in mine pipeline fire detector reliability, it is characterized in that: comprise detector housing, detector housing indoor design has single-chip microcomputer, ultraviolet sensitivity unit, infrared-sensitive unit, quartz window, in quartz window, outside has infrared receiving tube and infrared transmitting tube respectively, ultraviolet sensitivity unit, infrared-sensitive unit, infrared receiving tube and infrared transmitting tube are electrically connected with single-chip microcomputer respectively, single-chip microcomputer launches infrared light by controlling infrared transmitting tube in quartz window, the infrared light that the infrared transmitting tube that single-chip microcomputer is received by detection infrared receiving tube sends, to determine the light transmission of quartz window, if pollute and be greater than alarm threshold value, then provide pollution cue immediately, the alarm threshold value of single-chip microcomputer setting ultraviolet sensitivity unit and infrared-sensitive unit, by detecting the ultraviolet 0.2 μm and the signal amplitude of infrared 2.7 μm that the burning of outside methane gas produces, provide fire alarm.
Described detector housing is the right cylinder of Φ 90 × 120mm, bottom is the circular flange dish of Φ 220mm, circular flange dish is connected with the mounting hole of 8 Φ 18mm, detector top is fused quartz window optical window, quartz window, flange in the bottom dish and detector junction all adopt packing washer to carry out encapsulation process, detector indoor design has printed circuit board, circuit board is installed ultraviolet sensitivity unit, infrared-sensitive unit, fire alarm, status indicator lamp and infrared transmitting tube, wherein infrared transmitting tube is arranged on quartz window outside, by wire, signal is introduced printed circuit board, infrared receiving tube is arranged on detector internal circuit board, two pipes form 180 ° of correlation relations, detected the electric signal of infrared transmitting tube, infrared receiving tube by timing, realize quartz window (803) pollution detection.
Described quartz window is slope.
Described ultraviolet sensitivity unit and infrared-sensitive unit are divided into ultraviolet phototube and PbS infrared-sensitive unit.
Described infrared-sensitive unit place's installation 1 miniature incandescent lamp is used for the timing alignment of infrared-sensitive unit, in infrared-sensitive unit with in the optical path of incandescent lamp, by the shell perforate of infrared-sensitive unit, infrared-sensitive unit can be irradiated to when ensureing that incandescent lamp is lighted, single-chip microcomputer timing output lights the drive singal of incandescent lamp, after lighting incandescent lamp, gather the signal amplitude of infrared-sensitive unit again, this signal amplitude is stored in single-chip microcomputer, as the background environment of this period, when the signal amplitude collecting infrared-sensitive unit in this period exceedes background environment value, namely infrared fire signal is regarded as.
Described infrared receiving tube and infrared transmitting tube adopt a pair radiation peak to be the infrared transmitting tube of 0.89 μm, once infrared transmitting tube is driven by the every 60s of single-chip microcomputer, power valve is made to export the infrared ray of 0.89 μm, output time continues about about 100ms, then the amplitude output signal of infrared receiving tube is detected, infrared receiving tube adopts electric resistance partial pressure, when receiving infrared radiation, by opto-electronic conversion output voltage signal, shaping is amplified through rear class sampling, export analog voltage signal, simulating signal directly sends into the AD port of single-chip microcomputer, after AD conversion, after comparing with the alarm threshold value of setting.
Described single-chip microcomputer is embedded-type ARM single-chip microcomputer.
Promote a method for gas in mine pipeline fire detector reliability, its method is:
1) starting stage is entered;
2) quartz window surface is removed;
3) single-chip microcomputer receives the infrared light sent in quartz window by infrared receiving tube;
4) infrared receiving tube light intensity is detected;
5) the infrared receiving tube light intensity signal of detection is stored as standard value;
6) detection-phase is entered;
7) single-chip microcomputer receives the infrared light sent in quartz window by infrared receiving tube;
8) infrared receiving tube light intensity is detected;
9) the infrared receiving tube light intensity signal of detection and the standard value of starting stage are compared;
10) whether be greater than; Go to step 11), be not go to step 12);
11) export removing quartz window surface information, reenter step 6);
12) single-chip microcomputer is by driving the work of standard source light, and whether whether the receiving light power signal detecting ultraviolet sensitivity unit 4 or infrared-sensitive unit is normal, or not go to step 13), be go to step 14);
13) export ultraviolet sensitivity unit or the first circuit abnormality information of infrared-sensitive, reenter step 6);
14) timesharing detects the receiving light power signal that ultraviolet sensitivity is first or infrared-sensitive is first;
15) whether ultraviolet sensitivity unit or the first receiving light power signal of infrared-sensitive arrive alarming value, are go to step 16), or not do not go to step 17);
16) export gas pipeline fire alarm information, reenter step 6);
17) step 6 is reentered).
Advantage of the present invention is: 1, adopt ultraviolet, infrared-sensitive unit to detect Fire Radiation spectrum respectively, by software algorithm by after two paths of signals phase "AND", export fire alarm; 2, by structural design, a pair infrared transmitting tube, receiving tube being arranged on inside and outside detector window, by judging infrared transmitting tube, receiving tube characteristics of signals, judging the pollution level of detector window, export and pollute cue; 3, design CAN interface, report detector fire alarm and status information according to communications protocol; 4, structural design is carried out according to colliery standard-required, the optical window ensureing detector is chosen by optical material, the metal material being applicable to the use of mine pipeline is selected to carry out rational structural design, namely ensure the sealing grade of detector, meet again detector anti-vibration, shock resistance and corrosion resistant requirement.
Accompanying drawing explanation
Below in conjunction with embodiment accompanying drawing, the present invention is described in further detail:
Fig. 1 is gas in mine pipeline fire detector outside drawing;
Fig. 2 is gas in mine pipeline fire detector theory diagram.
In figure: 1, fire alarm, status indicator lamp; 2, infrared transmitting tube; 3, status indicator lamp; 4, ultraviolet sensitivity unit; 5, infrared receiving tube; 6, infrared-sensitive unit; 7, mounting flange; 8, detector housing; 9, single-chip microcomputer; 801, bottom; 802, mounting hole; 803, quartz window; 804, detector.
Embodiment
Each detailed problem involved in technical solution of the present invention is described in detail below in conjunction with accompanying drawing.
As shown in Figure 1, detector housing 8 is the right cylinder of Φ 90 × 120mm, and bottom 801 is the circular flange dish of Φ 220mm, is installed on the attached seat of installation of gas tube by the mounting hole 802 of 8 Φ 18mm.Detector housing 8 material selection Stainless steel 316, its intensity and corrosion resistance meet mining standard.Detector top is fused quartz window 803 optical window, and its fusing point is high, hardness good, chemical stability is good, heat-resisting and the advantage such as shock resistance.Quartz window 803 pairs of ultraviolets, infraredly all there is good transmissivity.Quartz window 803, bottom orchid dish 801 all adopt packing washer to carry out encapsulation process with detector 804 junction, ensure that the sealing class requirement of detector IP65.Detector 804 indoor design has printed circuit board, circuit board is installed ultraviolet sensitivity unit 4, infrared-sensitive unit 6, fire alarm, status indicator lamp 1 and infrared transmitting tube 2, wherein infrared transmitting tube 2 is arranged on quartz window 803 outside, by wire, signal is introduced printed circuit board, infrared receiving tube 5 is arranged on detector 804 internal circuit board, two pipes form 180 ° of correlation relations, detected the electric signal of infrared transmitting tube 2, infrared receiving tube 5, realize quartz window 803 pollution detection by timing.Quartz window 803 part-structure is designed to 30 ° of slopes, by accurate Calculation, selects the installation site of infrared-sensitive unit 6, ultraviolet sensitivity unit 4, ensure that the requirement of whole detector ± 50 ° optical field of view.Internal circuit board is arranged on housing by 4 screws, and the intensity that whole detector anti-vibration, resistance to mechanical are impacted all meets mining equipment requirement.
Fig. 2 is gas in mine pipeline fire detector housing block diagram, detector housing comprises: single-chip microcomputer 9, ultraviolet sensitivity unit 4, infrared-sensitive unit 6, quartz window 803, in quartz window 803, outside has infrared receiving tube 5 and infrared transmitting tube 2 respectively, ultraviolet sensitivity unit 4, infrared-sensitive unit 6, infrared receiving tube 5 and infrared transmitting tube 2 are electrically connected with single-chip microcomputer 9 respectively, single-chip microcomputer 9 launches infrared light by controlling infrared transmitting tube 2 in quartz window 803, the infrared light that the infrared transmitting tube 2 that single-chip microcomputer 9 is received by detection infrared receiving tube 5 sends, to determine the light transmission of quartz window 803, pollute if occur, affect the detectivity of detector to insight radiation, then provide pollution cue immediately, thus ensure the detectivity of ultraviolet sensitivity unit 4 and infrared-sensitive unit 6 pairs of Fire Radiations, the alarm threshold value of single-chip microcomputer inner setting ultraviolet sensitivity unit 4 and infrared-sensitive unit 6, by detecting the ultraviolet 0.2 μm and the signal amplitude of infrared 2.7 μm that the burning of outside methane gas produces, provide fire alarm according to software algorithm, realize the quick and precisely detecting and identifying to Fire Radiation.
We know that the combustion characteristics of methane gas meets hydrocarbon compound combustion pattern, there are two radiation peaks in it ultraviolet 0.2 μm and infrared 2.7 μm, by selecting suitable ultraviolet sensitivity unit 4 and infrared-sensitive unit 6, the signal extraction to these two wave bands can be realized, ultraviolet sensitivity unit 4 and infrared-sensitive unit 6 are through opto-electronic conversion, export electric signal to single-chip microcomputer 9, single-chip microcomputer 9 passes through software algorithm, determine whether real fiery signal, thus realize the quick and precisely detecting and identifying to gas detonation.
The ultraviolet sensitivity unit 4 that the present invention selects and infrared-sensitive unit 6 are divided in ultraviolet phototube and PbS infrared-sensitive unit, and the operating characteristic according to these two responsive units devises its performance loop respectively.Ultraviolet sensitivity unit is high pressure vacuum photoelectric tube, and the direct current supply of its need of work about 300V, designs suitable electric discharge performance loop, by adjustment operating voltage, makes its frequency of operation reach more than 1KHz.When receiving ultraviolet radiation, form discharge pulse fast, this pulse signal sends into single-chip processor i/o mouth after being driven by shaping, when input pulse number meet warning require time, export ultraviolet fire alarm.Infrared-sensitive unit is by extracting voltage change signal, drive through following shaping, send into the AD port of single-chip microcomputer, single-chip microcomputer is by detecting the amplitude of this port analog signal, be after digital quantity through AD conversion, compare with the alarm threshold value of inner setting, once exceed alarm threshold value threshold, namely export infrared fire signal.After collecting ultraviolet fire alarm, infrared fire signal, single-chip microcomputer directly exports fire alarm by hardwire interface, reports fire alarm by CAN simultaneously simultaneously.This completes the overall process that a fire alarm collection judges to export.
Ultraviolet sensitivity unit is high-pressure work, driving power comprises, DC12V direct supply, inverter, detector DC12V direct supply is converted to DC600V by inverter, export the high-voltage power supply of 1mA, for ultraviolet sensitivity unit provides high-pressure work power supply, the discharge pulse of ultraviolet sensitivity unit is continuous print spike, voltage amplitude is uneven, the re-shaping exercise to discharge pulse is realized by the inverter circuit of design band Schmidt trigger, discharge pulse after shaping is continuous square wave, single-chip processor i/o mouth is sent into after isolation, namely the collection of ultraviolet light photo signal is achieved, conversion, reach isolation effect again.
The timing alignment that 1 miniature incandescent lamp is used for infrared-sensitive unit is installed near infrared-sensitive unit, in infrared-sensitive unit with in the optical path of incandescent lamp, by the shell perforate of infrared-sensitive unit, infrared-sensitive unit can be irradiated to when ensureing that incandescent lamp is lighted, single-chip microcomputer timing output lights the drive singal of incandescent lamp, after lighting incandescent lamp, gather the signal amplitude of infrared-sensitive unit again, this signal amplitude is stored in single-chip microcomputer, as the background environment of this period, when the signal amplitude collecting infrared-sensitive unit in this period exceedes background environment value, namely infrared fire signal is regarded as.
Infrared receiving tube 5 and infrared transmitting tube 2 adopt a pair radiation peak to be the infrared transmitting tube of 0.89 μm, once infrared transmitting tube is driven by the every 60s of single-chip microcomputer, power valve is made to export the infrared ray of 0.89 μm, output time continues about about 100ms, then the amplitude output signal of infrared receiving tube is detected, infrared receiving tube adopts electric resistance partial pressure, when receiving infrared radiation, can by opto-electronic conversion output voltage signal, shaping is amplified through rear class sampling, export analog voltage signal, because receiving tube output signal is fainter, therefore the gain of Design of Amplification Circuit is larger, suitable increase filtering and bandwidth suppress, thus ensure that stability and the output amplitude of signal.This simulating signal directly sends into the AD port of single-chip microcomputer, after AD conversion, after comparing with the alarm threshold value of setting, the intensity variation that such monitoring receiving tube receives, window glass pollution level can be obtained, the light intensity received when receiving tube drops to a certain degree, and single-chip microcomputer provides pollution cue by CAN.
Single-chip microcomputer is by embedded-type ARM chip microcontroller, and this single-chip microcomputer self is with 2 tunnel CAN controller, and therefore the CAN driving circuit of outside employing standard can realize the CAN communication function of detector.
Gas in mine pipeline fire detector software flow is:
1) starting stage is entered;
2) quartz window 803 surface is removed;
3) single-chip microcomputer 9 receives the infrared light sent in quartz window 803 by infrared receiving tube 5;
4) infrared receiving tube 5 light intensity is detected;
5) infrared receiving tube 5 light intensity signal of detection is stored as standard value;
6) detection-phase is entered;
7) single-chip microcomputer 9 receives the infrared light sent in quartz window 803 by infrared receiving tube 5;
8) infrared receiving tube 5 light intensity is detected;
9) infrared receiving tube 5 light intensity signal of detection and the standard value of starting stage are compared;
10) whether be greater than; Being go to step 11, is not go to step 12);
11) export the surperficial information of removing quartz window 803, reenter step 6);
12) single-chip microcomputer 9 is by driving the work of standard source light, and whether whether the receiving light power signal detecting ultraviolet sensitivity unit 4 or infrared-sensitive unit 6 is normal, or not go to step 13), be go to step 14);
13) export ultraviolet sensitivity unit 4 or infrared-sensitive unit 6 circuit abnormality informations, reenter step 6);
14) timesharing detects the receiving light power signal of ultraviolet sensitivity unit 4 or infrared-sensitive unit 6;
15) whether ultraviolet sensitivity unit 4 or infrared-sensitive unit 6 receiving light power signals arrive alarming value, are go to step 16), or not do not go to step 17;
16) export gas pipeline fire alarm information, reenter step 6);
17) step 6 is reentered).
Claims (6)
1. one kind promotes the device of gas in mine pipeline fire detector reliability, it is characterized in that: comprise detector housing (8), detector housing (8) indoor design has single-chip microcomputer (9), ultraviolet sensitivity unit (4), infrared-sensitive unit (6), quartz window (803), in quartz window (803), outside has infrared receiving tube (5) and infrared transmitting tube (2) respectively, ultraviolet sensitivity unit (4), infrared-sensitive unit (6), infrared receiving tube (5) and infrared transmitting tube (2) are electrically connected with single-chip microcomputer (9) respectively, single-chip microcomputer (9) launches infrared light by controlling infrared transmitting tube (2) in quartz window (803), the infrared light that the infrared transmitting tube (2) that single-chip microcomputer (9) is received by detection infrared receiving tube (5) sends, to determine the light transmission of quartz window (803), if pollute and be greater than alarm threshold value, then provide pollution cue immediately, the alarm threshold value of single-chip microcomputer setting ultraviolet sensitivity unit (4) and infrared-sensitive unit (6), by detecting the ultraviolet 0.2 μm and the signal amplitude of infrared 2.7 μm that the burning of outside methane gas produces, provide fire alarm,
Described infrared receiving tube (5) and infrared transmitting tube (2) adopt a pair radiation peak to be the infrared transmitting tube of 0.89 μm, once infrared transmitting tube is driven by the every 60s of single-chip microcomputer, power valve is made to export the infrared ray of 0.89 μm, output time continues about about 100ms, then the amplitude output signal of infrared receiving tube is detected, infrared receiving tube adopts electric resistance partial pressure, when receiving infrared radiation, by opto-electronic conversion output voltage signal, shaping is amplified through rear class sampling, export analog voltage signal, simulating signal directly sends into the AD port of single-chip microcomputer, after AD conversion, after comparing with the alarm threshold value of setting, the intensity variation that such monitoring receiving tube receives, quartz window pollution level can be obtained, the light intensity received when receiving tube drops to a certain degree, single-chip microcomputer provides pollution cue by CAN,
The timing alignment of 1 miniature incandescent lamp for infrared-sensitive unit is installed at described infrared-sensitive unit (6) place, in infrared-sensitive unit with in the optical path of incandescent lamp, by the shell perforate of infrared-sensitive unit, infrared-sensitive unit can be irradiated to when ensureing that incandescent lamp is lighted, single-chip microcomputer timing output lights the drive singal of incandescent lamp, after lighting incandescent lamp, gather the signal amplitude of infrared-sensitive unit again, this signal amplitude is stored in single-chip microcomputer, as the background environment of the drive singal period of the bright incandescent lamp of single-chip microcomputer output point, when the signal amplitude collecting infrared-sensitive unit in this period exceedes background environment value, namely infrared fire signal is regarded as.
2. a kind of device promoting gas in mine pipeline fire detector reliability according to claim 1, it is characterized in that: the right cylinder that described detector housing (8) is Φ 90 × 120mm, the circular flange dish that bottom (801) is Φ 220mm, circular flange dish is connected with the mounting hole (802) of 8 Φ 18mm, detector top is fused quartz window (803) optical window, quartz window (803), circular flange dish and detector (804) junction all adopt packing washer to carry out encapsulation process, detector (804) indoor design has printed circuit board, circuit board is installed ultraviolet sensitivity unit (4), infrared-sensitive unit (6), fire alarm, status indicator lamp (1) and infrared transmitting tube (2), wherein infrared transmitting tube (2) is arranged on quartz window (803) outside, by wire, signal is introduced printed circuit board, infrared receiving tube (5) is arranged on detector (804) internal circuit board, infrared transmitting tube and infrared receiving tube form 180 ° of correlation relations, detected the electric signal of infrared transmitting tube (2), infrared receiving tube (5) by timing, realize quartz window (803) pollution detection.
3. a kind of device promoting gas in mine pipeline fire detector reliability according to claim 1, is characterized in that: described quartz window (803) is slope.
4. a kind of device promoting gas in mine pipeline fire detector reliability according to claim 1, is characterized in that: described ultraviolet sensitivity unit (4) and infrared-sensitive unit (6) are divided into ultraviolet phototube and PbS infrared-sensitive unit.
5. a kind of device promoting gas in mine pipeline fire detector reliability according to claim 1, is characterized in that: described single-chip microcomputer is embedded-type ARM single-chip microcomputer.
6. promote a method for gas in mine pipeline fire detector reliability, its method is:
1) starting stage is entered;
2) quartz window surface is removed;
3) single-chip microcomputer receives the infrared light sent in quartz window by infrared receiving tube;
4) infrared receiving tube light intensity is detected;
5) the infrared receiving tube light intensity signal of detection is stored as alarm threshold value;
6) detection-phase is entered;
7) single-chip microcomputer receives the infrared light sent in quartz window by infrared receiving tube;
8) infrared receiving tube light intensity is detected;
9) the infrared receiving tube light intensity signal of the alarm threshold value of starting stage and detection is compared;
10) whether be greater than; Go to step 11), be not go to step 12);
11) export removing quartz window surface information, namely pollute information, reenter step 6);
12) single-chip microcomputer is by driving standard sources work, whether normally detects the receiving light power signal that ultraviolet sensitivity is first or infrared-sensitive is first, or not does not go to step 13), be go to step 14);
13) export ultraviolet sensitivity unit or the first circuit abnormality information of infrared-sensitive, reenter step 6);
14) timesharing detects the receiving light power signal that ultraviolet sensitivity is first or infrared-sensitive is first;
15) whether ultraviolet sensitivity unit or the first receiving light power signal of infrared-sensitive arrive alarming value, are go to step 16), or not do not go to step 17);
16) export gas pipeline fire alarm information, reenter step 6);
17) step 6 is reentered).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310108896.0A CN103198604B (en) | 2013-04-01 | 2013-04-01 | A kind of device and method promoting gas in mine pipeline fire detector reliability |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310108896.0A CN103198604B (en) | 2013-04-01 | 2013-04-01 | A kind of device and method promoting gas in mine pipeline fire detector reliability |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103198604A CN103198604A (en) | 2013-07-10 |
| CN103198604B true CN103198604B (en) | 2015-12-02 |
Family
ID=48721093
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310108896.0A Active CN103198604B (en) | 2013-04-01 | 2013-04-01 | A kind of device and method promoting gas in mine pipeline fire detector reliability |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103198604B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104833632A (en) * | 2015-04-07 | 2015-08-12 | 陈永奇 | High speed spark detector |
| CN105664400A (en) * | 2016-04-15 | 2016-06-15 | 中煤科工集团重庆研究院有限公司 | Fast and automatic carbon dioxide combustion and explosion suppression system |
| CN105931418A (en) * | 2016-07-11 | 2016-09-07 | 安徽升隆电气有限公司 | Explosion-proofing infrared UV flame detector |
| CN106404671A (en) * | 2016-10-26 | 2017-02-15 | 桂林电子科技大学 | OH free-radical gas reaction cavity |
| CN110375812A (en) * | 2019-08-19 | 2019-10-25 | 李秀利 | A kind of smart city environment friendly system and its working method |
| CN117589292B (en) * | 2024-01-18 | 2024-04-26 | 太原晋贵信息技术服务中心 | Two-in-one flame detector for double-red-one-purple fire explosion |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5914489A (en) * | 1997-07-24 | 1999-06-22 | General Monitors, Incorporated | Continuous optical path monitoring of optical flame and radiation detectors |
| JP4315280B2 (en) * | 2003-10-16 | 2009-08-19 | 能美防災株式会社 | Flame detector |
| JP5135140B2 (en) * | 2008-09-19 | 2013-01-30 | ニッタン株式会社 | Flame detector |
| EP2251846B1 (en) * | 2009-05-13 | 2017-04-05 | Minimax GmbH & Co KG | Fire alarm |
| CN202033865U (en) * | 2011-04-25 | 2011-11-09 | 四川天微电子有限责任公司 | Ultraviolet and infrared composite flame detector |
| CN102779389A (en) * | 2012-07-19 | 2012-11-14 | 上海电控研究所 | Single ultraviolet phototube optical detector for fire detection at high temperature |
-
2013
- 2013-04-01 CN CN201310108896.0A patent/CN103198604B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN103198604A (en) | 2013-07-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103198604B (en) | A kind of device and method promoting gas in mine pipeline fire detector reliability | |
| CN2932336Y (en) | Infrared and ultraviolet composite flame detector | |
| CN202033865U (en) | Ultraviolet and infrared composite flame detector | |
| CN105370320A (en) | Coal mine gas concentration detection and alarm system | |
| CN105354974A (en) | Flame detection method based on three-wavelength infrared flame detector | |
| CN207115708U (en) | A kind of kitchen fuel gas alarm | |
| CN205189958U (en) | Colliery gas concentration detection and alarm system | |
| CN202454031U (en) | Self-checking light source direct flame detector | |
| CN103527249A (en) | Gas detection alarm device | |
| CN203189065U (en) | Mining gas pipe fire detector having pollution prompt alarm capability | |
| CN205643742U (en) | Light curtain infrared sensor | |
| CN205103145U (en) | All -round detection device of indoor gas | |
| CN102944026B (en) | Gas igniter integrated device | |
| CN208208067U (en) | A kind of coal mine downhole safety early warning system | |
| CN204227432U (en) | Torch altar lamp which burns day and night device | |
| CN209704636U (en) | Spontaneous combustion in goaf optical fiber sensing monitoring system | |
| CN202632484U (en) | Portable gas leakage alarm device | |
| CN105513261A (en) | Three-wavelength infrared flame detector | |
| CN204537412U (en) | A kind of emergency evacuation pilot lamp | |
| CN108399718A (en) | A kind of coal mine downhole safety early warning system | |
| CN2516966Y (en) | Fire detection control equipment with sunlight and blind light identification function | |
| CN208871665U (en) | A kind of new ultra-violet flame detector | |
| CN205850036U (en) | A kind of industry and trade industry combustible dust Work places fire-extinguishing explosion suppression device | |
| CN209623860U (en) | A kind of ultraviolet light photo type flame detector | |
| CN208998893U (en) | Infrared light electric-type correlation drop shaft material-level detecting device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |