CN201497722U - H2S gas detector - Google Patents
H2S gas detector Download PDFInfo
- Publication number
- CN201497722U CN201497722U CN2009202223653U CN200920222365U CN201497722U CN 201497722 U CN201497722 U CN 201497722U CN 2009202223653 U CN2009202223653 U CN 2009202223653U CN 200920222365 U CN200920222365 U CN 200920222365U CN 201497722 U CN201497722 U CN 201497722U
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- gas
- sensor
- detecting instrument
- shell
- gas detecting
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Abstract
The utility model provides an H2S gas detector. The H2S gas detector comprises an outer housing, a power supply, a display screen, a control panel and an H2S gas sensor installed in the outer housing, and a warning indicator is also installed in the outer housing. The harmful gas detector can detect the concentration of H2S in air and then makes judgment, and warning information can be sent if gas concentration is higher than a safety value. The detector has the advantages of simple structure, small volume and light weight and can be carried to various operation sites.
Description
[technical field]
The present invention relates to the harmful gas pick-up unit, be specifically related to the portable detector that can effectively detect sulfureted hydrogen gas concentration.
[background technology]
Along with developing rapidly of industry, the place of human contact toxic and harmful is more and more, causes human harm own increasing thus.Each intoxication accident, the importance of recognizing protection mankind itself safety in developing industry that people are regained consciousness.Therefore various harmful gas warning instruments become requisite safeguard in the industrial safety production gradually.
China patent application CN 200810055883.0 discloses a kind of emergent wireless toxic gas indicator for chemicals leakage accident, and it comprises that wind direction, air velocity transducer, at least a above poisonous gas sensor and amplifying circuit, single-chip microcomputer and peripheral circuit thereof, GPS module, wireless sending module and antenna thereof, ID are provided with switch, power supply and power-switching circuit.This apparatus structure is comparatively complicated, and cost is higher, and a large amount of uses are caused certain limitation.
China utility model patent CN 200420029053.8 discloses a kind of integrated multi-functional harmful gas fast detecting instrument, comprise gas sensor, signal adjustment circuit, display and casing, described integrated multi-functional harmful gas fast detecting instrument is provided with data processing circuit and four kinds of sensors, four kinds of gas sensors are arranged in the casing, are provided with gas samping pump in the casing; Described signal adjustment circuit is provided with A/D converter, and signal adjustment circuit is used to accept, amplify the voltage and current signal of four kinds of gas sensors outputs, is converted into digital signal, and regulate zero point, measurement range and instrument drift is recompensed; Described data processing circuit is most data processing circuits, most data processing circuits are provided with eprom memory, data processing circuit is used to receive multiple signals to be adjusted the digital signal of circuit output and it is carried out linear process, sends into display and sends into the eprom memory storage.But, the apparatus structure complexity of this utility model, and volume is bigger, is not easy to carry, so inconvenience is applied to the emergency relief scene.
[summary of the invention]
[technical matters that will solve]
The purpose of this utility model is to solve that existing gas detecting instrument complex structure, volume are big, the cost problem of higher, and a kind of simple, light, novel H that can carry is provided
2The S gas detecting instrument.
[technical scheme]
To achieve these goals, the utility model provides a kind of H
2The S gas detecting instrument comprises shell and power module, wherein, mainboard and the single-chip microcomputer, control panel, the H that link to each other with described mainboard electricity is housed in the described shell
2S gas sensor, display screen and attention device, the gas receiving end of described sensor stretches out described shell, the outside surface tabling of the screen portions of described display screen and described shell, described power module is connected with described mainboard, control panel, sensor and display screen respectively, to its power supply.
Described attention device is controlled by mainboard, if the H that sensor determination obtains
2When being higher than designated value, S gas concentration data send information warning.
According to a kind of preferred embodiment of the present utility model, described H
2The S gas sensor is an electrochemical sensor.The common ground of this class sensor is when in the testing environment tested gas being arranged, and sensor is translated into corresponding electric signal.Electric signal amplifies, after the analog to digital conversion, by single-chip microcomputer computing and processing, directly demonstrates the concentration value of the gas of surveying then on liquid crystal display through single-chip microcomputer and mainboard.When gas concentration reached the height warning limit value that sets in advance, the control function parts sent alerting signal.In the utility model, available sensor is 4 series sensor that provide of Britain CiTiceL company for example, the like product that the perhaps AF series sensor of Alpha (Alphasense) company, or other Sensor Technology Inc is sold.These sensors all meet GB12358 metering performance index.
The preferred implementation concrete according to another kind of the present utility model, described attention device are alarm lamp and hummer.According to attention device type difference, the prompting of bright lamp and buzzing alarming appears recording when the harmful gas concentration data are higher than designated value.
Preferably, the outside of the gas receiving end of described sensor is provided with wire gauze, can wrap up the gas receiving end of sensor, is used to intercept that dust, willow catkins flying in the air etc. may influence, the exotic of obstruction sensor.
More preferably, the gas receiving end outside of described sensor also is provided with sender unit cap, is connected with shell by screw thread, plays a protective role when detector is idle.
The preferred implementation concrete according to another kind of the present utility model, there is clamping device at the described shell back side, can be fixed on detector on clothes, the belt.
More preferably, the seam between described shell and control panel, screen, the button is provided with waterproof vibration isolation circle.
[beneficial effect]
The H that the utility model provides
2The S gas detecting instrument is simple in structure, and volume is little in light weight, can carry all kinds of operation fields.This equipment can effectively detect H
2The concentration of S gas.
[Figure of description]
Fig. 1 is H of the present utility model
2S gas detecting instrument front view;
Fig. 2 is H of the present utility model
2S gas detecting instrument rear view;
Fig. 3 is H of the present utility model
2S gas detecting instrument A-A direction view.
Wherein, 1, shell; 2, clip; 6, battery cover; 10, wire gauze; 11, sensor; 12, mainboard; 13, sender unit cap; 16, battery module; 18, button; 19, control panel; 20, display screen; 22, alarm lamp.
[embodiment]
Can further be expressly understood the utility model by the specific embodiment of the invention given below, but these embodiment not limiting the scope of the invention.
Be of a size of installation mainboard 12 in 105mm * 47.5mm * 27mm shell 1 in profile, on mainboard 12, connect H by contact pin
2 S gas sensor 11, embedded scm and display screen, the battery module 16 that installation links to each other with mainboard 12, control panel 19, install button 18 on control panel 19, alarm lamp 22, hummer (not drawing among the figure) and vibrating elements (not drawing among the figure) are welded on respectively on the mainboard 12.In the present embodiment, H
2The electrochemical gas sensor that S gas sensor 11 selects for use Switzerland Membrapor company to sell.Single-chip microcomputer on the mainboard 12 is selected the pic16f series of products for use, and it can detect and pass through the duty of display screen display device, tested gas concentration, handle warning message.
At H
2 S gas sensor 11 tops are provided with wire gauze and sender unit cap 13.
Also be provided with the clamping device 2 that equipment can be clamped on clothes, the waistband at shell 1 back side.
Described shell uses explosion-proof ABS material to make, and the seam between shell and display screen panel, control panel and button, battery module all is provided with the water, shock packing ring, and assurance equipment is being dropped, still can normally used under the situation of immersion accidentally.
The display screen of present embodiment is selected LCD for use, can indicator gauge 1 shown in information.
Table 1 liquid crystal display displays information
When gas concentration that sensor receives, gas concentration is converted to electric signal to be exported to single-chip microcomputer, electric signal is after single-chip microcomputer amplification, analog to digital conversion, by single-chip microcomputer judge whether greater than in advance the storage threshold value, if then send alerting signal, comprise alarm lamp and send buzzing alarming greater than threshold value.Otherwise equipment is kept normal duty.Its leading indicator is as shown in table 2.
Table 2 leading indicator
| Detected gas | Sensing range (μ L/L) | Detect error | The warning error | Response time | Zero point drift | The indicating value drift | Sensor life-time (moon) |
| Sulfuretted hydrogen (H 2S) | 0～100 | ±5％F.S | Set point concentration ± 10% | ＜40s | ±2％ F.S | ±2％ F.S | 24 |
Claims (6)
1. H
2The S gas detecting instrument comprises shell and power module, it is characterized in that being equipped with in the described shell mainboard and the single-chip microcomputer, control panel, the H that link to each other with described mainboard electricity
2S gas sensor, display screen and attention device, the gas receiving end of described sensor stretches out described shell, the outside surface tabling of the screen portions of described display screen and described shell, described power module is connected with described mainboard, control panel, sensor and display screen respectively, to its power supply.
2. H according to claim 1
2The S gas detecting instrument is characterized in that described H
2The S gas sensor is an electrochemical sensor.
3. H according to claim 1
2The S gas detecting instrument is characterized in that described attention device is alarm lamp and hummer.
4. H according to claim 1
2The S gas detecting instrument is characterized in that the outside of described sensor receiving end is provided with wire gauze and sender unit cap, is connected with shell by screw thread.
5. H according to claim 1
2The S gas detecting instrument is characterized in that there is clamping device at the described shell back side, can be fixed on detector on clothes, the belt.
6. H according to claim 1
2The S gas detecting instrument is characterized in that the seam between described shell and control panel, screen, the button is provided with waterproof vibration isolation circle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202223653U CN201497722U (en) | 2009-09-04 | 2009-09-04 | H2S gas detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202223653U CN201497722U (en) | 2009-09-04 | 2009-09-04 | H2S gas detector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201497722U true CN201497722U (en) | 2010-06-02 |
Family
ID=42440926
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202223653U Expired - Fee Related CN201497722U (en) | 2009-09-04 | 2009-09-04 | H2S gas detector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201497722U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105137024A (en) * | 2014-06-03 | 2015-12-09 | 江苏安泰机电科技有限公司 | Combustible gas sensor |
| CN105158304A (en) * | 2015-06-23 | 2015-12-16 | 中山欧麦克仪器设备有限公司 | Hydrogen sulfide gas detector |
| CN105606658A (en) * | 2016-03-08 | 2016-05-25 | 苏州天键衡电子信息科技有限公司 | Portable gas detector |
| CN108445165A (en) * | 2018-05-29 | 2018-08-24 | 德清县德沃工业设备安装有限公司 | A kind of Portable multiple-gas survey meter |
-
2009
- 2009-09-04 CN CN2009202223653U patent/CN201497722U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105137024A (en) * | 2014-06-03 | 2015-12-09 | 江苏安泰机电科技有限公司 | Combustible gas sensor |
| CN105158304A (en) * | 2015-06-23 | 2015-12-16 | 中山欧麦克仪器设备有限公司 | Hydrogen sulfide gas detector |
| CN105606658A (en) * | 2016-03-08 | 2016-05-25 | 苏州天键衡电子信息科技有限公司 | Portable gas detector |
| CN108445165A (en) * | 2018-05-29 | 2018-08-24 | 德清县德沃工业设备安装有限公司 | A kind of Portable multiple-gas survey meter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100602 Termination date: 20170904 |