CN202256247U - Multifunctional hand-held harmful gas detector - Google Patents
Multifunctional hand-held harmful gas detector Download PDFInfo
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- CN202256247U CN202256247U CN2011203769347U CN201120376934U CN202256247U CN 202256247 U CN202256247 U CN 202256247U CN 2011203769347 U CN2011203769347 U CN 2011203769347U CN 201120376934 U CN201120376934 U CN 201120376934U CN 202256247 U CN202256247 U CN 202256247U
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Abstract
The utility model relates to a multi-functional hand-held type harmful gas detector, including the casing, be equipped with air inlet, sensor group, display screen, switch and selector switch on the casing, sensor group contains a plurality of electrochemical sensor, is equipped with power and control circuit in the casing, and electrochemical sensor, display screen, switch, control circuit are connected with the power electricity, and control circuit includes electrically connected microprocessor, amplifier circuit, I/V converting circuit, AD converting circuit, warning circuit and zigBee communication module; the wireless network control and communication are realized by detecting various harmful gases through the selector switch, and an alarm is given by utilizing a built-in alarm circuit.
Description
Technical field
The utility model relates to a kind of gas detecting instrument, specifically, relates to a kind of function hand-held harmful gas detector, belongs to electronic technology field.
Background technology
In the exhaust emissions of industry and enterprises such as petrochemical industry, coal, mine, subsurface investigation, harmful gases such as sulphuric dioxide, carbon monoxide, sulfuretted hydrogen, ammonia, oxides of nitrogen, alkanes are on the rise to the pollution of atmospheric environment and to the influence of peripheral resident's health of human body and normal life.Harmful gas in the above-mentioned industry exhaust emissions is detected in real time and takes effective measure, become an extremely urgent thing, have important theory simultaneously and be worth and practice significance.
At present, most on the market gas detecting instruments adopt single gas detection pattern, and a kind of gas of promptly every measurement need carry a kind of measurement instrument, function singleness, and limitation is strong, uses inconvenience.
The utility model content
The problem that the utility model will solve is to above deficiency, provides a kind of function multi-functional hand-held formula harmful gas detector many, easy to use.
For overcoming the above problems; The utility model adopts following technical scheme: multi-functional hand-held formula harmful gas detector; Comprise housing, it is characterized in that: housing is provided with air intake opening, sensor groups, display screen, power switch and SS, and sensor groups includes a plurality of electrochemical sensors; Be provided with power supply and control circuit in the housing, electrochemical sensor, display screen, power switch, control circuit are electrically connected with power supply.
Further improvement as technique scheme:
Said control circuit comprises microprocessor, amplifying circuit, I/V change-over circuit, A/D change-over circuit and the ZigBee communication module of electrical connection;
Amplifying circuit is connected with SS, is used for current signal that electrochemical sensor is surveyed is amplified;
The I/V change-over circuit is connected with amplifying circuit, is used for converting the current signal after amplifying into voltage signal;
The A/D change-over circuit is connected with the I/V change-over circuit, is used for converting analog voltage signal into digital voltage signal;
Microprocessor, the reception digital voltage signal is also handled, and exports the gas concentration value information after handling to display screen and ZigBee communication module;
The ZigBee communication module is used for the gas concentration value information is carried out wireless transmission.
Said control circuit comprises warning circuit, and warning circuit is connected with microprocessor.
Be provided with fan in the said housing, fan is electrically connected with power switch, power supply.
Said power supply is a rechargeable battery, and rechargeable battery is through power switch wind-receiving fan and mu balanced circuit, and mu balanced circuit is that electrochemical sensor, display screen and control circuit provide working power.
After the utility model adopts above technical scheme; Compared with prior art; Have the following advantages: detector not only can detect multiple different harmful gas through SS, and can be according to different industry requirements, the different monitoring place; At any time change sensors of various types and monitor different types of harmful gas, can set different monitoring concentration and resolution to gas with various simultaneously.Can enough a kind of instrument detect the development trend that multiple gas with various is a gas detecting instrument simultaneously; Promptly carry out measuring multiple parameters; Many gas detection realize the identification of multiple gases kind and the judgement of concentration, thereby more fully reflect tested gas institute's characteristics showed in specific environment.
The embedded ZigBee communication module of detector; Can realize wireless network control and communication; Its wireless communication function makes that not only the user of instrument can be away from the harmful gas environment; Can also make and detect data and can realize real-time Transmission and share, save that traditional wired gas detecting instrument wiring is loaded down with trivial details, many troubles such as be prone to make mistakes with LAN;
When harmful gas concentration in the air surpassed threshold value, detector can utilize its built-in warning circuit to give the alarm, and alert is in time carried out corresponding safe operation.That this detector has is highly sensitive, measuring speed is fast, uses advantages such as simple, has excellent popularization and is worth and market outlook.
Below in conjunction with accompanying drawing and embodiment the utility model is elaborated.
Description of drawings
Accompanying drawing 1 is the structural representation of multi-functional hand-held formula harmful gas detector among the utility model embodiment;
Accompanying drawing 2 is circuit block diagrams of multi-functional hand-held formula harmful gas detector among the utility model embodiment;
Among the figure,
The 1-housing, 2-air intake opening, 3-sensor groups, 4-display screen, 5-power switch, the 6-socket that charges, 7-fan, 8-rechargeable battery, 9-SS.
Embodiment
Embodiment, like Fig. 1, shown in Figure 2, multi-functional hand-held formula harmful gas detector; Comprise housing 1, housing 1 is provided with air intake opening 2, sensor groups 3, display screen 4, power switch 5, charging socket 6 and SS 9, and sensor groups 3 includes a plurality of electrochemical sensors; Be provided with power supply, fan 7 and control circuit in the housing 1, be provided with fan 7 in the housing 1, make detected gas inside and outside detector, form a gas circulation; The balanced gas density of gas makes its measurement data more true and reliable; SS 9 is connected with electrochemical sensor, is used for selecting corresponding electrochemical sensor according to survey gas; Electrochemical sensor, display screen 4, power switch 5, fan 7 and control circuit are electrically connected with power supply;
Control circuit comprises microprocessor, amplifying circuit, I/V change-over circuit, A/D change-over circuit, warning circuit and the ZigBee communication module of electrical connection;
Amplifying circuit is connected with SS 9, is used for current signal that electrochemical sensor is surveyed is amplified;
The I/V change-over circuit is connected with amplifying circuit, is used for converting the current signal after amplifying into voltage signal;
The A/D change-over circuit is connected with the I/V change-over circuit, is used for converting analog voltage signal into digital voltage signal;
Microprocessor, the reception digital voltage signal is also handled, and exports the gas concentration value information after handling to display screen and ZigBee communication module;
Warning circuit is connected with microprocessor, when gas concentration value surpasses setting threshold, gives the alarm;
The ZigBee communication module is used for the gas concentration value information is carried out wireless transmission.
Power supply is a rechargeable battery 8, and rechargeable battery 8 is through power switch 5 wind-receiving fan 7 and mu balanced circuits, and mu balanced circuit is that electrochemical sensor, display screen 4 and control circuit provide working power.Charge through 6 pairs of rechargeable batteries 8 of charging socket.
Microprocessor adopts the Mega8L single-chip microcomputer, and display screen 4 adopts the OMC12964-9 dot lcd to show, can realize data acquisition and demonstration more accurately; Power supply has been abandoned the power supply mode of the AC220V that existing product used on the market, power 5*2.5W; Adopt Ni-Cd nickel-cadmium; With the WV mode of DC 5V, power 0.5W, weight is relieved to 300-500g by common 1.5kg, has improved the energy saving and the portability of product; Electrochemical sensor adopts CONTROLLED POTENTIAL electrolytic process principle, and its structure is in electrolytic cell, to settle three electrodes, promptly working electrode, to electrode and contrast electrode; And impose certain polarizing voltage; Separate with the external world with film, this film of tested gas permeation that gets into from air intake opening 2 arrives working electrode, and redox reaction takes place; Electrochemical sensor will have an output current this moment, and this electric current and tested gas concentration are proportional.
Multi-functional hand-held formula harmful gas detector Specifeca tion speeification:
Voltage: DC-5V, power: 0.5W, weight: 500g, sensing range: SO
2: 0-20ppm, CO:0-1000ppm, CH
2O:0-1ppm, working current: 0.1A, apparent size:, 160*108*56mm, the reaction time:＜1 second, stabilization time:＜30 seconds
The embedded ZigBee communication module of detector; Can realize wireless network control and communication; Its wireless communication function makes that not only the user of instrument can be away from the harmful gas environment; Can also make and detect data and can realize real-time Transmission and share, save that traditional wired gas detecting instrument wiring is loaded down with trivial details, many troubles such as be prone to make mistakes with LAN;
When harmful gas concentration in the air surpassed threshold value, detector can utilize its built-in warning circuit to give the alarm, and alert is in time carried out corresponding safe operation.
The sensing element that multi-functional hand-held formula harmful gas detector adopts is present popular in the world electrochemical sensor, has plurality of advantages such as stable performance, the linearity is good, the polarization time is short, antijamming capability is strong, the life-span is long.
That this detector has is highly sensitive, measuring speed is fast, uses advantages such as simple, has excellent popularization and is worth and market outlook.
Detector can be applicable to industry and enterprises such as petrochemical industry, coal, mine, subsurface investigation, and harmful gases such as the sulphuric dioxide in the exhaust emissions, carbon monoxide, sulfuretted hydrogen, ammonia, oxides of nitrogen, alkanes are monitored in real time, reported to the police and show.
Near method of application: operate in strict accordance with prompting, select to detect per 10～15m the poisonous gas leakage point
2Should detect at least once, will consider factors such as room ventilation and house inner structure simultaneously.
Points for attention:
(1) power supply that uses of detector is four joint Ni-Cd nickel-cadmiums, time spent not for a long time, every at a distance from the first quarter moon charging once.
(2) the sensor probe is wanted periodic cleaning, otherwise dust impurity stops up air intake opening transducer sensitivity is descended.
(3) user does not dismantle the inner components and parts of detector voluntarily, especially notes not making it produce strenuous vibration.
(4) forbid detector is placed on the inflammable gas gathering and has hazardous area.
Claims (5)
1. multi-functional hand-held formula harmful gas detector; Comprise housing (1); It is characterized in that: housing (1) is provided with air intake opening (2), sensor groups (3), display screen (4), power switch (5) and SS (9); Sensor groups (3) includes a plurality of electrochemical sensors, and housing is provided with power supply and control circuit in (1), and electrochemical sensor, display screen (4), power switch (5), control circuit are electrically connected with power supply.
2. multi-functional hand-held formula harmful gas detector as claimed in claim 1, it is characterized in that: said control circuit comprises microprocessor, amplifying circuit, I/V change-over circuit, A/D change-over circuit and the ZigBee communication module of electrical connection;
Amplifying circuit is connected with SS (9), is used for current signal that electrochemical sensor is surveyed is amplified;
The I/V change-over circuit is connected with amplifying circuit, is used for converting the current signal after amplifying into voltage signal;
The A/D change-over circuit is connected with the I/V change-over circuit, is used for converting analog voltage signal into digital voltage signal;
Microprocessor, the reception digital voltage signal is also handled, and exports the gas concentration value information after handling to display screen and ZigBee communication module;
The ZigBee communication module is used for the gas concentration value information is carried out wireless transmission.
3. multi-functional hand-held formula harmful gas detector as claimed in claim 2, it is characterized in that: said control circuit comprises warning circuit, warning circuit is connected with microprocessor.
4. multi-functional hand-held formula harmful gas detector as claimed in claim 3 is characterized in that: be provided with fan (7) in the said housing (1), fan (7) is electrically connected with power switch (5), power supply.
5. multi-functional hand-held formula harmful gas detector as claimed in claim 4; It is characterized in that: said power supply is rechargeable battery (8); Rechargeable battery (8) is through power switch (5) wind-receiving fan (7) and mu balanced circuit, and mu balanced circuit is that electrochemical sensor, display screen (4) and control circuit provide working power.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203769347U CN202256247U (en) | 2011-09-28 | 2011-09-28 | Multifunctional hand-held harmful gas detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203769347U CN202256247U (en) | 2011-09-28 | 2011-09-28 | Multifunctional hand-held harmful gas detector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202256247U true CN202256247U (en) | 2012-05-30 |
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ID=46117469
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203769347U Expired - Fee Related CN202256247U (en) | 2011-09-28 | 2011-09-28 | Multifunctional hand-held harmful gas detector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202256247U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104568002A (en) * | 2014-12-26 | 2015-04-29 | 昆山工研院新型平板显示技术中心有限公司 | Environmental detection device |
| CN105866207A (en) * | 2016-05-13 | 2016-08-17 | 池州学院 | Mine gas detection device |
| CN106097668A (en) * | 2016-07-29 | 2016-11-09 | 南京科力赛克安全设备有限公司 | There is the gas alarm of wireless transmission function |
| CN106896181A (en) * | 2015-12-18 | 2017-06-27 | 上海昱丽环境科技有限公司 | A kind of five in one gas sensor and operation method |
| CN107290404A (en) * | 2017-05-17 | 2017-10-24 | 成都雷纳斯科技有限公司 | A kind of combustible-gas detector |
| CN108956740A (en) * | 2018-07-05 | 2018-12-07 | 西安理工大学 | A kind of portable printing industry VOCs wasted nickel catalyst instrument and detection method |
-
2011
- 2011-09-28 CN CN2011203769347U patent/CN202256247U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104568002A (en) * | 2014-12-26 | 2015-04-29 | 昆山工研院新型平板显示技术中心有限公司 | Environmental detection device |
| CN106896181A (en) * | 2015-12-18 | 2017-06-27 | 上海昱丽环境科技有限公司 | A kind of five in one gas sensor and operation method |
| CN105866207A (en) * | 2016-05-13 | 2016-08-17 | 池州学院 | Mine gas detection device |
| CN106097668A (en) * | 2016-07-29 | 2016-11-09 | 南京科力赛克安全设备有限公司 | There is the gas alarm of wireless transmission function |
| CN107290404A (en) * | 2017-05-17 | 2017-10-24 | 成都雷纳斯科技有限公司 | A kind of combustible-gas detector |
| CN108956740A (en) * | 2018-07-05 | 2018-12-07 | 西安理工大学 | A kind of portable printing industry VOCs wasted nickel catalyst instrument and detection method |
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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 |
Granted publication date: 20120530 Termination date: 20140928 |
|
| EXPY | Termination of patent right or utility model |