CN105738286A - Portable methane and carbon monoxide detector - Google Patents
Portable methane and carbon monoxide detector Download PDFInfo
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- CN105738286A CN105738286A CN201410755621.0A CN201410755621A CN105738286A CN 105738286 A CN105738286 A CN 105738286A CN 201410755621 A CN201410755621 A CN 201410755621A CN 105738286 A CN105738286 A CN 105738286A
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Abstract
The invention relates to a portable methane and carbon monoxide detector. The detector comprises a housing, a liquid crystal display screen, an alarm indicator lamp, a power indicator lamp, a charging port, a loudspeaker, a switch, a circuit board, a band, an infrared methane probe, an infrared carbon monoxide sensor, information transmission ports, a power supply, and a stand-by power supply. The power supply is connected to the charging port. The circuit board is provided with a CPU, which is connected to a charging control circuit, a memory, a frequency output and on-off output circuit, a sound-light alarm circuit, a state indicator circuit, a power switching circuit, a clock circuit, a carbon monoxide detection circuit, a methane detection circuit, and the liquid crystal display screen. The sound-light alarm circuit is connected to the loudspeaker and the alarm indicator lamp; the frequency output and on-off output circuit is connected to the switch and the information transmission ports; the state indicator circuit is connected to the power supply indicator lamp; the charging control circuit is connected to the charging port, the power supply, and the power switching circuit; and the power switching circuit is further connected to the methane probe and the carbon monoxide sensor.
Description
Technical field
The present invention relates to mine safety field, be specifically related to a kind of portable methane carbon monoxide measurer.
Background technology
, there is a large amount of methane and carbon monoxide in work under bad environment under mine, not only affects the healthy of workman, and easily work equipment is impacted, and can cause security incident, thus effectively detect methane and temperature and they are controlled by, and is very important.The operation principle of tradition methane detector is to utilize black and white catalysis element to carry out eudiometry, cannot long-term work under the environment of high temperature, high humidity, high dust under mine, by the impact of wind speed and pressure, environmental suitability is poor, and easily poisoning have the defects such as measurement narrow range, null offset are big.
Summary of the invention
In order to solve the problems referred to above, the present invention proposes a kind of portable methane carbon monoxide measurer, this determinator utilizes infrared methane to pop one's head in as gas sensor, it has extremely strong environmental suitability, by wind speed and pressure influence, the advantage such as accuracy of detection is high, null offset is little, re-testing periods length and detection range width, overcome the phenomenon that catalysis element is easily poisoning, service life is long, and this determinator is convenient for carrying.
The present invention is achieved by the following technical solutions: a kind of portable methane carbon monoxide measurer, including housing, it is located at the LCDs in housing front, alarm lamp and power supply indicator, is located at the charge port of housing side, speaker and switch, and is located at the wiring board in housing；The back side of described housing is also equipped with the bandage of length adjustable, back side of shell top side correspondence bandage is provided with card trough of belt, described card trough of belt is provided with elastic spacing catch, and one end of elastic spacing catch is connected with card fluted apertures, and the other end is free end and the another side with card trough of belt leaves gap；One end of described bandage and housing hinge, the other end is provided with junction button；The bottom side of described housing is provided with infrared methane probe and Infrared Carbon Monoxide sensor；The opposite side of described housing is provided with the information transmission mouth being connected with external equipment signal；This determinator is provided with 10 ampere-hour lithium ion power supplies and 10 ampere-hour lithium ion stand-by power supplies, and described power supply is connected with charge port；Described wiring board is provided with CPU and the charging control circuit being connected respectively, memorizer, rate-adaptive pacemaker and switching value output circuit, sound light alarming circuit, condition indication circuit, power-switching circuit, clock circuit, Carbon Monoxide Detection circuit and CH_4 detection circuit with CPU；Described sound light alarming circuit is connected with speaker and alarm lamp respectively；Described rate-adaptive pacemaker and switching value output circuit are connected with switch and information transmission mouth respectively；Described condition indication circuit is connected with power supply indicator；Described charging control circuit is connected with charge port, power supply and power-switching circuit, and power-switching circuit is also connected with passing infrared methane probe and Infrared Carbon Monoxide sensor；Described Carbon Monoxide Detection circuit is made up of the Infrared Carbon Monoxide sensor being linked in sequence, filtering and amplifying circuit and A/D change-over circuit；Described CH_4 detection circuit is made up of infrared methane probe, filtering and amplifying circuit and A/D change-over circuit；Described CPU is also connected with LCDs.
The material of described housing is rustless steel.
Described information transmission mouth includes methane output transmission mouth；Carbon monoxide output transmission mouth and RS485 output transmission mouth.
The invention has the beneficial effects as follows: a kind of portable methane carbon monoxide measurer, this determinator utilizes infrared methane to pop one's head in as gas sensor, it has extremely strong environmental suitability, not by wind speed and pressure influence, the advantages such as accuracy of detection is high, null offset is little, re-testing periods length and detection range width, overcoming the phenomenon that catalysis element is easily poisoning, service life is long.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the invention will be further described.
Accompanying drawing 1 is the structural representation of a kind of portable methane carbon monoxide measurer.
Accompanying drawing 2 is the structure schematic diagram of a kind of portable methane carbon monoxide measurer
Accompanying drawing 3 is a kind of portable methane carbon monoxide measurer structural principle schematic diagram.
In figure, 1. housing, 2. bandage, 3. LCDs, 4. alarm lamp, 5. power supply indicator, 6. card trough of belt, 7. charge port, 8. speaker, 9. switch, 10. wiring board, 11. infrared methane probes, 12. Infrared Carbon Monoxide sensors, 13. information transmission mouths.
Detailed description of the invention
In the accompanying drawings, a kind of portable methane carbon monoxide measurer, including housing 1, is located at the LCDs 3 in housing 1 front, alarm lamp 4 and power supply indicator 5, it is located at the charge port 7 of housing 1 side, speaker 8 and switch 9, and is located at the wiring board 10 in housing 1；The back side of described housing 1 is also equipped with the bandage 2 of length adjustable, top side, housing 1 back side correspondence bandage 2 is provided with card trough of belt 6, described card trough of belt 6 is provided with elastic spacing catch, one end of elastic spacing catch is connected with card trough of belt 6 opening, and the other end is free end and the another side with card trough of belt 6 leaves gap；One end of described bandage 2 is hinged with housing 1, and the other end is provided with junction button；The bottom side of described housing 1 is provided with infrared methane probe 11 and Infrared Carbon Monoxide sensor 12；The opposite side of described housing 1 is provided with the information transmission mouth 13 being connected with external equipment signal；This determinator is provided with 10 ampere-hour lithium ion power supplies and 10 ampere-hour lithium ion stand-by power supplies, and described power supply is connected with charge port 7；Described wiring board 10 is provided with CPU and the charging control circuit being connected respectively, memorizer, rate-adaptive pacemaker and switching value output circuit, sound light alarming circuit, condition indication circuit, power-switching circuit, clock circuit, Carbon Monoxide Detection circuit and CH_4 detection circuit with CPU；Described sound light alarming circuit is connected with speaker 8 and alarm lamp 4 respectively；Described rate-adaptive pacemaker and switching value output circuit are connected with switch 9 and information transmission mouth 13 respectively；Described condition indication circuit is connected with power supply indicator 5；Described charging control circuit is connected with charge port 7, power supply and power-switching circuit, and power-switching circuit is also connected with passing infrared methane probe 11 and Infrared Carbon Monoxide sensor 12；Described Carbon Monoxide Detection circuit is made up of the Infrared Carbon Monoxide sensor 12 being linked in sequence, filtering and amplifying circuit and A/D change-over circuit；Described CH_4 detection circuit is made up of infrared methane probe 11, filtering and amplifying circuit and A/D change-over circuit；Described CPU is also connected with LCDs 3.
The material of described housing 1 is rustless steel.
Described information transmission mouth 13 includes methane output transmission mouth；Carbon monoxide output transmission mouth and RS485 output transmission mouth.
The operation principle of the present invention is: the methane gas in air converts the signal of telecommunication of correspondence to by infrared methane determinator, and the signal of telecommunication is through amplifying filtering, after CPU processes, is demonstrated the size of contained methane concentration in the air of correspondence by digital form；When exceeding the alarm point of its setting such as methane concentration, warning circuit sends chimes of doom visual alarm, to show that concentration transfinites.According to demand this determinator can be hung over during use front or side, can also be fixed on arm and use, when needs hang over front, bandage 2 is rotated respectively, make free end upwards, and bandage 2 is inserted in card trough of belt 6, bandage 2 is limited in card trough of belt 6 by elastic spacing sheet and conveniently hangs on neck.
The invention have the characteristics that except detecting gas density in real time, moreover it is possible to detection ambient temperature, display year, month, day and time and self-contained battery voltage；Can store the methane concentration value in 5000 groups of certain year in such a month, and on such a day some times, and value host computer can be uploaded print or preserve for a long time；Determinator adopts 10 ampere-hour lithium ion batteries to do power supply, overcomes the shortcoming that Ni-MH battery charging temperature influence is big, and lithium battery memory effect is little, and the service life of battery lengthens significantly；Adopt infrared probe to do gas sensor, compare it with carrier catalyst element with the obvious advantage: can underground coal mine high temperature, high humidity, high dust environment in work for a long time, and measure by wind speed and pressure influence, there is extremely strong environmental suitability；Overcoming black-and-white component scalar period short, measure the shortcomings such as narrow range, null offset are big, infrared probe has that accuracy of detection height, null offset is little, re-testing periods length (can demarcate once for two months) and detection range width (0-100%CH4) etc. feature；Overcoming the phenomenon that catalysis element is easily poisoning, the colliery that infrared probe is suitable for high-sulfur ore deposit and other complicated gas contents uses, and service life is stable, generally uses the life-span more than 5 years.
Claims (3)
1. a portable methane carbon monoxide measurer, is characterized in that, including housing, is located at the LCDs in housing front, alarm lamp and power supply indicator, is located at the charge port of housing side, speaker and switch, and is located at the wiring board in housing；The back side of described housing is also equipped with the bandage of length adjustable, back side of shell top side correspondence bandage is provided with card trough of belt, described card trough of belt is provided with elastic spacing catch, and one end of elastic spacing catch is connected with card fluted apertures, and the other end is free end and the another side with card trough of belt leaves gap；One end of described bandage and housing hinge, the other end is provided with junction button；The bottom side of described housing is provided with infrared methane probe and Infrared Carbon Monoxide sensor；The opposite side of described housing is provided with the information transmission mouth being connected with external equipment signal；This determinator is provided with 10 ampere-hour lithium ion power supplies and 10 ampere-hour lithium ion stand-by power supplies, and described power supply is connected with charge port；Described wiring board is provided with CPU and the charging control circuit being connected respectively, memorizer, rate-adaptive pacemaker and switching value output circuit, sound light alarming circuit, condition indication circuit, power-switching circuit, clock circuit, Carbon Monoxide Detection circuit and CH_4 detection circuit with CPU；Described sound light alarming circuit is connected with speaker and alarm lamp respectively；Described rate-adaptive pacemaker and switching value output circuit are connected with switch and information transmission mouth respectively；Described condition indication circuit is connected with power supply indicator；Described charging control circuit is connected with charge port, power supply and power-switching circuit, and power-switching circuit is also connected with passing infrared methane probe and Infrared Carbon Monoxide sensor；Described Carbon Monoxide Detection circuit is made up of the Infrared Carbon Monoxide sensor being linked in sequence, filtering and amplifying circuit and A/D change-over circuit；Described CH_4 detection circuit is made up of infrared methane probe, filtering and amplifying circuit and A/D change-over circuit；Described CPU is also connected with LCDs.
2. the portable methane carbon monoxide measurer of one according to claim 1, is characterized in that, the material of described housing is rustless steel.
3. the portable methane carbon monoxide measurer of one according to claim 1, is characterized in that, described information transmission mouth includes methane output transmission mouth；Carbon monoxide output transmission mouth and RS485 output transmission mouth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410755621.0A CN105738286A (en) | 2014-12-11 | 2014-12-11 | Portable methane and carbon monoxide detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410755621.0A CN105738286A (en) | 2014-12-11 | 2014-12-11 | Portable methane and carbon monoxide detector |
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| Publication Number | Publication Date |
|---|---|
| CN105738286A true CN105738286A (en) | 2016-07-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410755621.0A Pending CN105738286A (en) | 2014-12-11 | 2014-12-11 | Portable methane and carbon monoxide detector |
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| CN (1) | CN105738286A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106501177A (en) * | 2016-10-19 | 2017-03-15 | 山东罗伯特能源装备有限公司 | A kind of instruction device of Portable combustible gas detector and its display packing and indicating means |
| CN107764969A (en) * | 2017-10-16 | 2018-03-06 | 镇江市南方工矿器材有限公司 | A kind of gas indicator with auto-alarm function |
| CN109387609A (en) * | 2018-12-11 | 2019-02-26 | 贵州大学 | A kind of coal mining carbon monoxide gas concentration detection alarm device |
| CN110095160A (en) * | 2019-05-28 | 2019-08-06 | 安徽延达智能科技有限公司 | A kind of Multifunction Sensor of 11 unification |
| CN110095153A (en) * | 2019-05-20 | 2019-08-06 | 安徽延达智能科技有限公司 | One kind ten unifies Multifunction Sensor |
-
2014
- 2014-12-11 CN CN201410755621.0A patent/CN105738286A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106501177A (en) * | 2016-10-19 | 2017-03-15 | 山东罗伯特能源装备有限公司 | A kind of instruction device of Portable combustible gas detector and its display packing and indicating means |
| CN106501177B (en) * | 2016-10-19 | 2019-10-18 | 山东罗伯特能源装备有限公司 | The instruction device and its display methods and indicating means of a kind of Portable combustible gas detector |
| CN107764969A (en) * | 2017-10-16 | 2018-03-06 | 镇江市南方工矿器材有限公司 | A kind of gas indicator with auto-alarm function |
| CN109387609A (en) * | 2018-12-11 | 2019-02-26 | 贵州大学 | A kind of coal mining carbon monoxide gas concentration detection alarm device |
| CN110095153A (en) * | 2019-05-20 | 2019-08-06 | 安徽延达智能科技有限公司 | One kind ten unifies Multifunction Sensor |
| CN110095160A (en) * | 2019-05-28 | 2019-08-06 | 安徽延达智能科技有限公司 | A kind of Multifunction Sensor of 11 unification |
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Application publication date: 20160706 |
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