CN105092812A - CJY4/30 type methane oxygen measuring device - Google Patents
CJY4/30 type methane oxygen measuring device Download PDFInfo
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- CN105092812A CN105092812A CN201510310941.XA CN201510310941A CN105092812A CN 105092812 A CN105092812 A CN 105092812A CN 201510310941 A CN201510310941 A CN 201510310941A CN 105092812 A CN105092812 A CN 105092812A
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- oxygen
- methane
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Abstract
The invention discloses a CJY4/30 type methane oxygen measuring device including a shell body; the shell body is internally provided with a circuit main board, a battery, a methane Wyeth electrical bridge, an oxygen wyeth electrical bridge, an A/D converter, a single-chip microcomputer, a digital tube, alarms and a wireless module; the alarms include an acoustic alarm, a light alarm and a vibration alarm. The measuring device has the advantages of stable performance, accurate door limit, rapid response, and high precision; a use method adopts a humanized design and a soft adjusting technology, and is simple to operate and easy to use; an outer shell of the measuring device adopts an ABS high-strength all-plastic structure, a touch-tone electronic thin film switch having high sealing performance is matched, a four-bit highlighted red digital tube is adopted for displaying, a sound, light and vibration combined type alarming mode is adopted, the alarming effect is more obvious and better, and the measuring device is novel in structure, unique in modeling, small in size, light in weight and easy to carry; and at the same time, a wireless transmitting-receiving module is equipped, and patrol data are uploaded.
Description
Technical field
The present invention relates to a kind of apparatus for determination of gas, particularly a kind of CJY4/30 type methane oxygen determinator.
Background technology
Gas is the accompaniment of coal mining, and gas explosion is one of the disaster in colliery, serious threat, Safety of Coal Mine Production, the emphasis of each coal mining state research of the Ye Shi world today and prevention.The methane analyzer that current colliery uses is mostly portable, the circuit of current known portable methane analyzer by sensing element, amplifying circuit, A/D change-over circuit, single-chip microcomputer, signal output apparatus, sound light alarming circuit, display circuit forms; Can monitor continuously methane concentration.Its shortcoming is sensitivity and poor stability, and the working time is short, is not suitable for mining work under mine, simultaneously less than normal to the sensing range of hazardous gas, also just reduces security performance to a certain extent.
Summary of the invention
Technical matters to be solved by this invention provides a kind of CJY4/30 type methane oxygen determinator for above drawback, adopt the electronic warning instrument of carrier catalysis principle, embedded microcontroller Based Intelligent Control, numeral method, be mainly used in carrying out CH_4 detection and warning at the underground coal mine of the danger with explosive mixed gas, (0.00-100) %CH4 can be reached to the sensing range of methane.
For solving above technical matters, technical scheme provided by the invention is:
CJY4/30 type methane oxygen determinator, it is characterized in that, comprise housing, described housing is the overall plastic structure of ABS high strength, its front has observation panel, button and sound window, and its upper side has methane air intake opening and oxygen air intake opening, and described observation panel is square, be positioned at keys upwards, described button is keyswitch type electronic thin film switch;
Circuit main board is provided with in housing, battery, methane Hui Shi electric bridge, oxygen Hui Shi electric bridge, A/D converter, single-chip microcomputer, charactron, alarm and radio receiving transmitting module, described battery is realized methane Hui Shi electric bridge by circuit main board, oxygen Hui Shi electric bridge, A/D converter, single-chip microcomputer, charactron, the power supply supply of alarm and radio receiving transmitting module, one end of described methane Hui Shi electric bridge is connected with circuit main board, and the other end is connected with A/D converter, and methane Hui Shi electric bridge comprises carrier catalyst element, pure carrier element and metalfilmresistor, described carrier catalyst element is positioned at methane air intake opening place, one end of described oxygen Hui Shi electric bridge is connected with circuit main board, the other end is connected with A/D converter, and oxygen Hui Shi electric bridge comprises oxygen probe and metalfilmresistor, and described oxygen probe is positioned at oxygen air intake opening place, described A/D converter is connected with single-chip microcomputer, described single-chip microcomputer is connected with charactron and alarm by circuit main board, and described radio receiving transmitting module is arranged in housing, is connected with circuit main board,
Described alarm comprises sound alarm subsystem, light crossing-signal and vibrations alarm, sound alarm subsystem, light crossing-signal and vibrations alarm synchronous working, described sound alarm subsystem is the passive hummer of paster, be positioned at sound window place, described vibrations alarm is vibrating motor, is arranged at four angles place in housing, described charactron and observation panel corresponding matching, charactron is the red charactrons of four high brightness, and described light crossing-signal is ceramic paster LED light source, is distributed in symmetrically above and below charactron;
The upper side of housing is provided with emergency light, and described emergency light is connected with emergency light power supply, described emergency light power supply and battery relatively independent, emergency light is by emergency light switch control rule, and described emergency light switch is keyswitch type electronic thin film switch, is arranged at housing left upper portion;
Further, described battery and emergency light power supply are intrinsic safe battery;
Further, described methane air intake opening and oxygen air intake opening are equipped with valve;
Further, be sheathed with leather sheath outside described housing, described leather sheath both sides are provided with band, and described band is provided with VELCRO.
This CJY4/30 type methane oxygen determinator is at methane 0.00%CH
4~ 100%CH
4with oxygen (0 ~ 30) %O
2scope in set alarm set point arbitrarily, the difference of alarm indication value and setting value is no more than ± and 0.05%, first set the alarm set point of CH_4 detection and oxygen detection in use, methane air intake opening and oxygen air intake opening by valve by mining for the air intake in environment alarm, methane Hui Shi electric bridge detects the methane gas content in air, oxygen Hui Shi electric bridge detects the oxygen gas content in air, and generate methane Hui Shi electric bridge potential difference (PD) and oxygen Hui Shi electric bridge potential difference (PD) respectively, above-mentioned two kinds of potential difference (PD) convert thereof into digital signal by A/D converter, single-chip microcomputer is sent to carry out digital processing, digital signal after digital processing drives numeral method to go out methane concentration and the oxygen concentration of tested gas by circuit main board, when methane concentration reaches warning value or oxygen concentration reaches or is less than alarming value, single-chip microcomputer exports control signal immediately, control alarm through circuit main board to give the alarm, sound alarm subsystem, light crossing-signal and vibrations alarm synchronously send buzzing, flash of light and vibrations, make numeral method red numerical simultaneously and flash, this CJY4/30 type methane oxygen determinator passes through single-chip microcomputer, setting clock, and display is with on charactron, the staff be convenient under mine understands time variations, be configured with radio receiving transmitting module simultaneously, when night watching, radio receiving transmitting module does not work, until night watching terminates, during charging, radio receiving transmitting module is opened, and automatically and Patrol Terminal carry out wireless connections, upload the night watching data of preservation.After data end of transmission, close radio receiving transmitting module, analyzer enters charging off-mode.
This CJY4/30 type methane oxygen determinator is not when using, and analyzer can be placed in leather sheath, by the band bundle of leather sheath both sides on arm or waist.
In sum, CJY4/30 type methane oxygen determinator of the present invention adopts high-performance sensors, micro computer digital technology and Novel electronic devices, stable performance, thresholding is accurate, be swift in response, precision is high, use-pattern adopts human oriented design, soft regulation technology, simple to operate, easy to use, analyzer shell adopts the overall plastic structure of ABS high strength, the keyswitch type electronic thin film switch of adapted high sealing performance, four red numeral method of high brightness, novel structure, exotic shape, volume is little, lightweight, easy to carry, be configured with radio receiving transmitting module simultaneously, upload night watching data.
Accompanying drawing explanation
Fig. 1 schematic diagram of the present invention.
Fig. 2 schematic diagram of the present invention.
Fig. 3 leather sheath schematic diagram.
Fig. 4 alarm schematic diagram.
Embodiment
CJY4/30 type methane oxygen determinator, it is characterized in that, comprise housing 1, described housing 1 is the overall plastic structure of ABS high strength, housing is rectangular parallelepiped, the length of its rectangular parallelepiped being, wide, height is respectively L, D and H, described L=100mm, D=56mm, H=24mm, housing 1 is by upper shell 17, lower house 18 laminating forms, and be bolted, O-ring seal 19 is provided with between upper shell 24 and lower house 25, the front of housing 1 has observation panel 11, button 12 and sound window 20, described observation panel 11 is square, be positioned at above button 12, described button 12 is keyswitch type electronic thin film switch, button 12 quantity is 4, the upper side of housing 1 has methane air intake opening 13 and oxygen air intake opening 14, methane air intake opening 13 is communicated with air chamber 31 with oxygen air intake opening 14, described air chamber 31 is arranged in analyzer housing 1, methane air intake opening 13 and oxygen air intake opening 14 place are provided with valve 32, internal thread and rubber plug 33, the tubulose of described valve 32 in hollow, its lower end is provided with external thread, valve 32 is coordinated by internal and external threads and is dismountablely fixed on air intake opening 14 place, medium air filtration cotton 34 is provided with in valve 32, described medium air filtration cotton 34 enters the dust of air chamber 31 with air for filtering, when not using, take off valve 32 blend rubber plug 33 and clog air intake opening 14, ensure that air chamber 32 is clean, and protect in analyzer housing 1,
Circuit main board 2 is provided with in housing 1, battery 3, methane Hui Shi electric bridge 4, oxygen Hui Shi electric bridge 5, A/D converter 6, single-chip microcomputer 7, charactron 8, alarm 9 and radio receiving transmitting module 21, described battery 3 realizes methane Hui Shi electric bridge 4 by circuit main board 2, oxygen Hui Shi electric bridge 5, A/D converter 6, single-chip microcomputer 7, charactron 8, the power supply supply of alarm 9 and radio receiving transmitting module 21, one end of described methane Hui Shi electric bridge 4 is connected with circuit main board 2, and the other end is connected with A/D converter 6, and methane Hui Shi electric bridge 4 comprises carrier catalyst element 41, pure carrier element 42 and metalfilmresistor 43, described carrier catalyst element 41 is arranged at methane air intake opening 13 place, be positioned at air chamber 31, one end of described oxygen Hui Shi electric bridge 5 is connected with circuit main board 2, the other end is connected with A/D converter 6, oxygen Hui Shi electric bridge 5 comprises oxygen and visits 51 and metalfilmresistor 52, described oxygen probe 51 is arranged at oxygen air intake opening 14 place, be positioned at air chamber 31, described A/D converter 6 is connected with single-chip microcomputer 7, and described single-chip microcomputer 7 is connected with charactron 8 and alarm 9 by circuit main board 2, described radio receiving transmitting module 21 is arranged in housing 1, is connected with circuit main board 2,
Described alarm 9 comprises sound alarm subsystem 91, light crossing-signal 92 and vibrations alarm 93, sound alarm subsystem 91, light crossing-signal 92 and vibrations alarm 93 synchronous working, described sound alarm subsystem 91 is the passive hummer of paster, quantity is 8, be positioned at sound window 20 place, described vibrations alarm 93 is vibrating motor, quantity is 4, be arranged at four angles place in housing 1, described charactron 8 and observation panel corresponding matching, charactron 8 is the red charactrons of four high brightness, described light crossing-signal 93 is ceramic paster LED light source, quantity is 16, be distributed in above and below charactron 8 symmetrically,
The upper side of housing 1 is provided with emergency light 10, described emergency light 10 is connected with emergency light power supply 101, and described emergency light power supply 101 is relatively independent with battery 3, and emergency light 10 controls by emergency light switch 102, described emergency light switch 102 is keyswitch type electronic thin film switch, is arranged at housing 1 left upper portion;
Wherein, described battery 3 and emergency light power supply 101 are intrinsic safe battery, and described methane air intake opening 13 and oxygen air intake opening 14 are equipped with valve 15, are sheathed with leather sheath 16 outside described housing 1, and described leather sheath both sides are provided with band 161, and described band 161 is provided with VELCRO 162.
The parameter of the CJY4/30 type methane oxygen determinator of the present embodiment is as follows:
1. working environment:
Working temperature (0 ~ 40) DEG C;
Relative humidity≤98%(25 DEG C);
Air pressure (80 ~ 116) kPa;
Wind speed≤8m/s;
There is the underground coal mine of methane explosion risk.
2. resolution:
Methane 0.01%; Oxygen 0.1%.
3. technical parameter:
(1) measurement range:
Methane: (0 ~ 4.00) %CH
4; Oxygen: (0 ~ 30) %O
2;
(2) measuring error:
Methane: (0 ~ 1.00) %CH
4time, ± 0.10%CH
4, (1.00 ~ 3.00) %CH
4time, true value ± 10%CH
4, (3.00 ~ 4.00) %CH
4time, ± 0.3%CH
4;
Oxygen: be not more than ± 0.5%.
(3) response time:
Methane: be not more than 20s; Oxygen: be not more than 20s.
(4) warning function:
A. alarm range methane: (0.5 ~ 2.5) %CH
4, when dispatching from the factory, be set in 1.00%CH
4;
Oxygen: (5.0 ~ 25.0) %O
2, when dispatching from the factory, be set in 18.0%O
2;
B. to report to the police error:
Methane: be not more than setting value ± 0.05%CH
4; Oxygen: be not more than ± 0.1%O
2;
C. type of alarm:
Blinking red lamp, chimes of doom are also with vibrations;
D. chimes of doom intensity: >=75dB.
4. clock part:
(1) standard: 24 hours systems;
(2) displaying contents: hour, point;
(3) error :≤± 1 minute/24 hours;
5. battery operating voltage part:
(1) measurement range: 3.1V ~ 5V;
(2) measuring error :≤± 0.01V;
(3) display mode: show magnitude of voltage after E word;
6. the automatic record of data memory function:
(1) record format: time m-methane concentration-oxygen concentration;
(2) storage mode:
When methane and oxygen are not reported to the police, automatically record every half an hour and store frame data; When methane or oxygen are reported to the police, automatically record every 10 seconds and store frame data;
(3) memory capacity: 80 frames (increase-volume can be required according to user).
7. soft regulatory function:
(1) regulative mode: button
(2) regulate content: zero point, correct
8. undervoltage warning and under-voltage automatic shut-off function:
During battery operating voltage E≤3.1V, under-voltage value is flashed, automatic shutdown after 2 seconds.
9. super dense warning and super dense automatic shut-off function:
Methane concentration>=5%CH
4time, super dense value is flashed, automatic shutdown after 2 seconds.
10. once charge stream time: > 10 hours
11. electric battery charge lifetimes: > 500 times
12. working currents :≤170mA.
13. intrinsic safety electric sources: 3 × Ni-MH1.6Ah, maximum open circuit voltage Uo:DC4.2V, rated voltage Ue:DC3.6V, maximum short circuit current Io:3.6A.
14. type of protection [of an electrical apparatus for explosive atmospheres: mining intrinsic safety is held concurrently flame-proof type.
15. explosion-proof mark: ExibdI.
16. physical dimension: 100 × 56 × 24mm.
17. weight: 220g.
18. enclosure materials: ABS engineering plastics.
19, radio receiving transmitting module:
(1), communication modes: amplitude modulation AM;
(2), frequency of operation: 315MHZ;
(3), frequency stability: ± 75KHZ;
(4), emissive power :≤500mW;
(5), quiescent current :≤0.1UA;
(6), transmitter current: 3 ~ 50mA;
(7), operating voltage: DC3.6V.
This CJY4/30 type methane oxygen determinator is at methane 0.00%CH
4~ 100%CH
4with oxygen (0 ~ 30) %O
2scope in set alarm set point arbitrarily, the difference of alarm indication value and setting value is no more than ± and 0.05%, first set the alarm set point of CH_4 detection and oxygen detection in use, methane air intake opening and oxygen air intake opening by valve by mining for the air intake in environment alarm, methane Hui Shi electric bridge detects the methane gas content in air, oxygen Hui Shi electric bridge detects the oxygen gas content in air, and generate methane Hui Shi electric bridge potential difference (PD) and oxygen Hui Shi electric bridge potential difference (PD) respectively, above-mentioned two kinds of potential difference (PD) convert thereof into digital signal by A/D converter, single-chip microcomputer is sent to carry out digital processing, digital signal after digital processing drives numeral method to go out methane concentration and the oxygen concentration of tested gas by circuit main board, when methane concentration reaches warning value or oxygen concentration reaches or is less than alarming value, single-chip microcomputer exports control signal immediately, control alarm through circuit main board to give the alarm, sound alarm subsystem, light crossing-signal and vibrations alarm synchronously send buzzing, flash of light and vibrations, make numeral method red numerical simultaneously and flash, this CJY4/30 type methane oxygen determinator passes through single-chip microcomputer, setting time clock feature, and display is with on charactron, the staff be convenient under mine understands time variations, be configured with radio receiving transmitting module simultaneously, when night watching, radio receiving transmitting module does not work, until night watching terminates, during charging, radio receiving transmitting module is opened, and automatically and Patrol Terminal carry out wireless connections, upload the night watching data of preservation.After data end of transmission, close radio receiving transmitting module, analyzer enters charging off-mode.
This CJY4/30 type methane oxygen determinator is not when using, and analyzer can be placed in leather sheath, by the band bundle of leather sheath both sides on arm or waist.
In sum, CJY4/30 type methane oxygen determinator of the present invention adopts high-performance sensors, micro computer digital technology and Novel electronic devices, stable performance, thresholding is accurate, be swift in response, precision is high, use-pattern adopts human oriented design, soft regulation technology, simple to operate, easy to use, analyzer shell adopts the overall plastic structure of ABS high strength, the keyswitch type electronic thin film switch of adapted high sealing performance, four red numeral method of high brightness, novel structure, exotic shape, volume is little, lightweight, easy to carry, be configured with radio receiving transmitting module simultaneously, upload night watching data.
The above; be only the present invention's preferably embodiment, but protection scope of the present invention is not limited thereto, is anyly familiar with those skilled in the art in the technical scope that the present invention discloses; the change that can expect easily or replacement, all should be encompassed in protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain of claims.
Claims (5)
1.CJY4/30 type methane oxygen determinator, it is characterized in that, comprise housing, described housing is the overall plastic structure of ABS high strength, its front has observation panel, button and sound window, and its upper side has methane air intake opening and oxygen air intake opening, and described observation panel is square, be positioned at keys upwards, described button is keyswitch type electronic thin film switch.
2. CJY4/30 type methane oxygen determinator as claimed in claim 1, is characterized in that, be provided with circuit main board in housing, battery, methane Hui Shi electric bridge, oxygen Hui Shi electric bridge, A/D converter, single-chip microcomputer, charactron, alarm and radio receiving transmitting module, described battery is realized methane Hui Shi electric bridge by circuit main board, oxygen Hui Shi electric bridge, A/D converter, single-chip microcomputer, charactron, the power supply supply of alarm and radio receiving transmitting module, one end of described methane Hui Shi electric bridge is connected with circuit main board, and the other end is connected with A/D converter, and methane Hui Shi electric bridge comprises carrier catalyst element, pure carrier element and metalfilmresistor, described carrier catalyst element is positioned at methane air intake opening place, one end of described oxygen Hui Shi electric bridge is connected with circuit main board, the other end is connected with A/D converter, and oxygen Hui Shi electric bridge comprises oxygen probe and metalfilmresistor, and described oxygen probe is positioned at oxygen air intake opening place, described A/D converter is connected with single-chip microcomputer, described single-chip microcomputer is connected with charactron and alarm by circuit main board, and described radio receiving transmitting module is arranged in housing, is connected with circuit main board.
3. CJY4/30 type methane oxygen determinator as claimed in claim 2, it is characterized in that, described alarm comprises sound alarm subsystem, light crossing-signal and vibrations alarm, sound alarm subsystem, light crossing-signal and vibrations alarm synchronous working, described sound alarm subsystem is the passive hummer of paster, be positioned at sound window place, described vibrations alarm is vibrating motor, be arranged at four angles place in housing, described charactron and observation panel corresponding matching, charactron is the red charactrons of four high brightness, described light crossing-signal is ceramic paster LED light source, be distributed in symmetrically above and below charactron.
4. CJY4/30 type methane oxygen determinator as claimed in claim 1, it is characterized in that, the upper side of housing is provided with emergency light, described emergency light is connected with emergency light power supply, described emergency light power supply and battery relatively independent, emergency light is by emergency light switch control rule, and described emergency light switch is keyswitch type electronic thin film switch, is arranged at housing left upper portion.
5. the CJY4/30 type methane oxygen determinator as described in claim 1 and 4, it is characterized in that, described battery and emergency light power supply are intrinsic safe battery, described methane air intake opening and oxygen air intake opening are equipped with valve, leather sheath is sheathed with outside described housing, described leather sheath both sides are provided with band, and described band is provided with VELCRO.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510310941.XA CN105092812A (en) | 2015-06-09 | 2015-06-09 | CJY4/30 type methane oxygen measuring device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510310941.XA CN105092812A (en) | 2015-06-09 | 2015-06-09 | CJY4/30 type methane oxygen measuring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105092812A true CN105092812A (en) | 2015-11-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510310941.XA Pending CN105092812A (en) | 2015-06-09 | 2015-06-09 | CJY4/30 type methane oxygen measuring device |
Country Status (1)
| Country | Link |
|---|---|
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201497720U (en) * | 2009-09-04 | 2010-06-02 | 北京科力赛克科技有限公司 | Harmful gas detecting instrument |
| CN202330396U (en) * | 2011-11-30 | 2012-07-11 | 江苏三恒科技集团有限公司 | Multi-parameter gas detector |
| CN203324257U (en) * | 2013-07-25 | 2013-12-04 | 李平波 | Carbon dioxide analysis meter |
-
2015
- 2015-06-09 CN CN201510310941.XA patent/CN105092812A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201497720U (en) * | 2009-09-04 | 2010-06-02 | 北京科力赛克科技有限公司 | Harmful gas detecting instrument |
| CN202330396U (en) * | 2011-11-30 | 2012-07-11 | 江苏三恒科技集团有限公司 | Multi-parameter gas detector |
| CN203324257U (en) * | 2013-07-25 | 2013-12-04 | 李平波 | Carbon dioxide analysis meter |
Non-Patent Citations (2)
| Title |
|---|
| 施文: "《有毒有害气体检测仪器原理和应用》", 31 December 2009 * |
| 林延中 等: "《煤矿安全仪器及装备选型手册》", 31 December 1989 * |
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Application publication date: 20151125 |
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