CN206362601U - A kind of gas-detecting device - Google Patents
A kind of gas-detecting device Download PDFInfo
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- CN206362601U CN206362601U CN201720015332.6U CN201720015332U CN206362601U CN 206362601 U CN206362601 U CN 206362601U CN 201720015332 U CN201720015332 U CN 201720015332U CN 206362601 U CN206362601 U CN 206362601U
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Abstract
The utility model discloses a kind of gas-detecting device, the gas-detecting device includes master controller, wireless transport module, gas samping pump, collection airbag, power supply, first gas sensor and second gas sensor；Wherein, the wireless transport module, the gas samping pump, the first gas sensor, the second gas sensor are connected with the master controller respectively.Gas-detecting device of the present utility model detects that measurement gaseous species are more, and measurement result is more accurate using multiple gases sensor to gas；Gas sensor is connected with collection airbag, and while being detected to gas, gas can be acquired, convenient that further the gas of collection is detected.Gas-detecting device is additionally provided with wind transducer, air velocity transducer, and the data measured by wind transducer and air velocity transducer can be determined that the source of detected gas.
Description
Technical field
The utility model is related to gas monitoring techniques field, and in particular to a kind of gas-detecting device.
Background technology
At present, with expanding economy, the gaseous species in living environment there occurs great changes, some gases with content
Presence or the increase of its concentration effluvium present in certain threat, especially air is caused to the healthy of the mankind
Body, thus it is significant for the development detection work of these pernicious gases；The species of existing gas sensor is a lot, commonly uses
Such as solid electrolyte gas sensor, semiconductor gas sensor, surface acoustic wave gas sensor.All kinds of gas sensors
Performance difference is larger, and respective to predominantly detect that object is also different, the gas detecting system of composition is there is also difference, however, almost
All gas detecting systems can not all be detected simultaneously to multiple gases simultaneously.In addition, existing gas-detecting device inspection
It is man-to-man to go to gather and monitor gas by single-sensor when surveying gas, detect that the accuracy of gas is poor.Traditional gas
When body detecting instrument is to the detection of the gas of environment, gas detection sensor is only responsible for detection gas and obtains detecting number accordingly
Only it is responsible for collection gas according to, acquisition instrument, it is impossible to while detection to gas, gas is collected, so that by the gas of collection
Body is further detected.
As can be seen here, traditional gas detecting instrument has clearly disadvantageous and defect, it would be highly desirable to further improve.
Utility model content
The purpose of this utility model is to provide a kind of gas-detecting device, to overcome the defect that prior art is present.
To achieve the above object, the utility model provides a kind of gas-detecting device, and the gas-detecting device includes master
Controller, wireless transport module, gas samping pump, collection airbag, power supply, first gas sensor and second gas sensor；
Wherein, the wireless transport module, the gas samping pump, the first gas sensor, the second gas
Sensor is connected with the master controller respectively；
The first gas sensor gas outlet is connected with the second gas sensor air inlet, the second sensor
Gas outlet be connected with the gas samping pump, the gas outlet of the gas samping pump is connected by valve with the collection airbag；
The wireless transport module, the gas samping pump, the first gas sensor, the second gas sensor
It is connected respectively with power supply.
The valve is triple valve, and the triple valve has valve air inlet, two valve gas outlets, the valve
Air inlet is connected with the gas samping pump, and one of valve gas outlet of the triple valve is connected with the collection airbag, separately
One valve gas outlet is connected with external environment.
The gas-detecting device also includes wind transducer, and the wind transducer is connected with the master controller.
The gas-detecting device also includes air velocity transducer, and the air velocity transducer is connected with the master controller.
The first sensor is that metal oxide semiconductor sensor, electrochemical sensor or photoionization PID are passed
Sensor.
The second sensor is that metal oxide semiconductor sensor, electrochemical sensor or photoionization PID are passed
Sensor.
The gas-detecting device also include third gas sensor, the third gas sensor respectively with the master control
System, second gas sensor connection.
The power supply uses battery.
The utility model has the following advantages that：
Gas-detecting device of the present utility model is detected using multiple gases sensor to gas, measures gaseous species
More, measurement result is more accurate；Gas sensor is connected with collection airbag, and while being detected to gas, gas can be carried out
Collection, it is convenient that further the gas of collection is detected.Gas-detecting device is additionally provided with wind transducer, wind speed sensing
Device, the data measured by wind transducer and air velocity transducer can be determined that the source of detected gas.
Brief description of the drawings
Fig. 1 is the composition schematic diagram of gas-detecting device of the present utility model.
Embodiment
Following examples are used to illustrate the utility model, but are not limited to scope of the present utility model.
As shown in figure 1, the utility model provides a kind of gas-detecting device, the gas-detecting device include master controller 4,
Wireless transport module 7, gas samping pump 11, collection airbag, power supply 2, first gas sensor 9 and second gas sensor 8, power supply
2 can use battery, and above-mentioned part is encapsulated in housing 15.Wherein, wireless transport module 7, gas samping pump 11, first gas
Sensor 9, second gas sensor 8 are connected by power line and the master controller 4 of signal wire 3 respectively；First gas sensor 9
Air inlet 10 is connected with external environment, and the gas outlet of first gas sensor 9 is connected with the air inlet of second gas sensor 8, the
The gas outlet of two sensors 8 is connected with gas samping pump 11, and the gas outlet of gas samping pump 11 is connected by valve 12 with collection airbag 1
Connect；Wireless transport module 7, gas samping pump 11, first gas sensor 9, second gas sensor 8 are connected with power supply 2 respectively,
Power supply 2 is powered to wireless transport module 7, gas samping pump 11, first sensor 9 and second sensor 8.When first sensor 9
When being detected with second sensor 8 to gas, when the concentration for detecting a certain gas reaches certain value, master controller 4 is controlled
Valve 12 is opened, and by gas collection to be detected into collection airbag 1, and using three bags of methods of national standard is entered into one the gas later stage being collected into
Step detection, to be used as law enforcement foundation.Detected gas can be sampled and preserved while gas is monitored, and can notify to monitor people
Member extracts sampled result.While gas-detecting device of the present utility model carries out detection gas, can automatic data collection gas to gas
Bag, facilitates the later stage to be detected using three bags of methods of national standard, and the later stage is used as law enforcement foundation.
Preferably, valve 12 of the present utility model uses triple valve, triple valve has valve air inlet, two valves
Gas outlet, valve air inlet is connected with gas samping pump 11, and one of valve gas outlet of triple valve passes through gas circuit 14 and collection
Airbag 1 is connected, and another valve gas outlet is by connecting gas circuit formation gas outlet 13.When needing collection gas, master controller 4
Control gas samping pump 11 is opened, and detected gas is adopted after first sensor 9, second sensor 8 are detected by gas
Sample pump 11 is pumped into collection airbag 1, and the gas outlet 13 for the gas circuit that unnecessary gas is connected by triple valve is discharged in environment.Pass through
Master controller 4 is controlled triple valve 11, first sensor 9 and second sensor 8, can be while the gas of detection, to quilt
Detection gas is collected, and realizes detection gas with collecting the synchronous of gas.
Specifically, first sensor 9 of the present utility model, second sensor 8 can be respectively metal-oxide semiconductor (MOS)
Sensor, electrochemical sensor or photoionization PID sensor.As needed, gas-detecting device of the present utility model is also
3rd sensor, the 4th sensor etc. can be set to determine.Gas-detecting device of the present utility model includes first sensor, the
Two sensors and 3rd sensor, first sensor, second sensor and 3rd sensor are connected with main control respectively, and
And first sensor, second sensor and 3rd sensor are connected in series, wherein, first sensor 9 is metal oxide half
Conductor sensor, for the foul gas in monitoring of environmental；Second sensor 8 is electrochemical sensor, for measuring NH3、H2S
Gas concentration；3rd sensor is photoionization PID sensor, for measuring VOCSGas concentration.Sensed by above three
Device is used in conjunction with, and can be very good monitoring foul gas and its concentration scale, and tell the gaseous species such as hydrogen sulfide, ammonia and
Its concentration value.The utility model gas-detecting device takes the sensor array of many principles to carry out combined type calculating, improves gas
The monitoring accuracy of body.
Below to metal oxide semiconductor sensor of the present utility model, electrochemical sensor, photoionization PID gases
Sensor is further described, and metal oxide semiconductor sensor of the present utility model is using semi-conducting material to smell
Sensitive reaction, when carrying out hundreds of degrees Celsius of heating to semiconductor, the resistance value of semiconductor can be with its Surface Odor molecule
Absorption and surface reaction, occur sensitive change, highly sensitive detection can be carried out to micro smell.In addition, metal
Oxide-semiconductor sensor is not influenceed by environment temperature and humidity etc., and the reproducibility of testing result is good.
Electrochemical sensor to tested gas by reacting and producing the electric signal being directly proportional to gas concentration.Typical case
Electrochemical sensor be made up of sensing electrode (or working electrode) and counterelectrode, and separated by a thin electrolyte layers.Gas leads to
Cross small hollow billet type perforate to react with gas sensor, gas eventually arrives at electrode surface by hydrophobic barrier.Electrification
Learning sensor allows proper amount of gas to be reacted with sensing electrode, to form sufficient electric signal, while preventing electrolyte from spilling
Sensor.The gas spread through barrier reacts with sensor electrode, and sensor electrode uses oxidation mechanism or reducing machine
Reason, is catalyzed for the electrode material for being tested gas design.The electric current of resistor is directly proportional to tested gas concentration, measures resistance
The size of the electric current of device is that can determine that detected gas concentration.
Organic matter is broken into and can detected by detector using uviol lamp (UV) light source by photoionization PID gas sensors
The negative ions arrived.The electric charge of the gas of detectors measure ionization is simultaneously translated into current signal, and electric current is exaggerated and shown
" PPM " concentration value is shown.After gas is detected, ion is combined again turns into original gas.PID is a kind of non-damaged data
Device, it " will not burn " or forever sexually revise tested gas, and the gas detected by PID, which can be still collected, is used as further survey
It is fixed.
Wherein, gas-detecting device also includes wind transducer 5, air velocity transducer 6, wind transducer 5 and wind speed sensing
Device 6 is connected with master controller 4.Wind transducer 5 can accurately determine the wind direction, and be conducive to accurately judging detected gas
Source and direction.During concrete application, measurement wind direction can also use wind vane, and measurement wind speed can also use anemoscope.It is especially right
During the monitoring of foul gas, because its gas complicated component and also influenceed by many factors, for example：Foul gas is by week
Side industrial environment, meteorological condition etc. influence, and wind transducer, air velocity transducer are installed on gas-detecting device, available for supervising
The meteorological condition of measured point is surveyed, is conducive to the monitoring of foul gas and judges the source of foul gas, timely to forecast.
Gas-detecting device of the present utility model continuously extracts sample gas by gas samping pump 11, passes through
After gas sensor reaction, the gas concentration of monitoring is converted into electric signal by master controller, and electric signal passes through analog operational circuit
After amplification pretreatment, it is sent to that microprocessor calculating processing obtains foul gas and other are tested by wireless transport module 7
Survey the data signal of gas.Meanwhile, the data of the meteorological condition for the surrounding enviroment that wind transducer, air velocity transducer are measured are led to
Wireless transport module 7 is crossed to be transferred in microprocessor in real time.The data and wind direction of detected gas, air speed data are through micro- place
Reason device is further handled, and obtains the measure concentration of gas, and judge the foundation in the source of foul gas.
Gas-detecting device of the present utility model is provided with multiple gas sensors, and collection airbag is passed by sampling pump and gas
Sensor is connected, and gas is collected while gas sensor detects gas, convenient further to be entered using three bags of methods of national standard
Row detection so that measurement result is more fitted actual conditions, measurement result is more accurate.In addition, the utility model uses multiple gases
Sensor, can cover more a variety of detection gases,
Although above having made detailed description to the utility model with generality explanation and specific embodiment,
On the basis of the utility model, it can be made some modifications or improvements, this is apparent to those skilled in the art
's.Therefore, the these modifications or improvements on the basis of without departing from the utility model spirit, belonging to the utility model will
Seek the scope of protection.
Claims (8)
1. a kind of gas-detecting device, it is characterised in that the gas-detecting device include master controller, wireless transport module,
Gas samping pump, collection airbag, power supply, first gas sensor and second gas sensor；
Wherein, the wireless transport module, the gas samping pump, the first gas sensor, second gas sensing
Device is connected with the master controller respectively；
The first gas sensor gas outlet is connected with the second gas sensor air inlet, the second gas sensor
Gas outlet be connected with the gas samping pump, the gas outlet of the gas samping pump is connected by valve with the collection airbag；
The wireless transport module, the gas samping pump, the first gas sensor, second gas sensor difference
It is connected with power supply.
2. gas-detecting device according to claim 1, it is characterised in that
The valve is triple valve, and the triple valve has valve air inlet, two valve gas outlets, the valve air inlet
Mouth is connected with the gas samping pump, and one of valve gas outlet of the triple valve is connected with the collection airbag, another
Valve gas outlet is connected with external environment.
3. gas-detecting device according to claim 1, it is characterised in that
The gas-detecting device also includes wind transducer, and the wind transducer is connected with the master controller.
4. gas-detecting device according to claim 1, it is characterised in that
The gas-detecting device also includes air velocity transducer, and the air velocity transducer is connected with the master controller.
5. gas-detecting device according to claim 1, it is characterised in that
The first gas sensor is that metal oxide semiconductor sensor, electrochemical sensor or photoionization PID are passed
Sensor.
6. gas-detecting device according to claim 1, it is characterised in that
The second gas sensor is that metal oxide semiconductor sensor, electrochemical sensor or photoionization PID are passed
Sensor.
7. gas-detecting device according to claim 1, it is characterised in that
The gas-detecting device also include third gas sensor, the third gas sensor respectively with the main control,
The second gas sensor connection.
8. gas-detecting device according to claim 1, it is characterised in that
The power supply uses battery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720015332.6U CN206362601U (en) | 2017-01-06 | 2017-01-06 | A kind of gas-detecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720015332.6U CN206362601U (en) | 2017-01-06 | 2017-01-06 | A kind of gas-detecting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206362601U true CN206362601U (en) | 2017-07-28 |
Family
ID=59379484
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| Application Number | Title | Priority Date | Filing Date |
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| CN201720015332.6U Active CN206362601U (en) | 2017-01-06 | 2017-01-06 | A kind of gas-detecting device |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108982054A (en) * | 2018-08-07 | 2018-12-11 | 亚翔系统集成科技（苏州）股份有限公司 | A kind of toilet's corrosive gas source determines method |
| CN110187055A (en) * | 2019-05-09 | 2019-08-30 | 河北先河环保科技股份有限公司 | A kind of factory's circle type monitor between different malodor source producers |
| CN110187054A (en) * | 2019-05-09 | 2019-08-30 | 河北先河环保科技股份有限公司 | It is a kind of for fixing the monitor of malodor source |
| CN110320323A (en) * | 2018-03-30 | 2019-10-11 | 蔚山科学技术院 | Sensor-based real-time odor classification device and method |
| CN110412209A (en) * | 2018-04-27 | 2019-11-05 | 研能科技股份有限公司 | Gas-detecting device |
| CN113686626A (en) * | 2021-08-26 | 2021-11-23 | 上海化工院检测有限公司 | Replaceable harmful gas detecting and sampling device |
-
2017
- 2017-01-06 CN CN201720015332.6U patent/CN206362601U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110320323A (en) * | 2018-03-30 | 2019-10-11 | 蔚山科学技术院 | Sensor-based real-time odor classification device and method |
| CN110412209A (en) * | 2018-04-27 | 2019-11-05 | 研能科技股份有限公司 | Gas-detecting device |
| CN108982054A (en) * | 2018-08-07 | 2018-12-11 | 亚翔系统集成科技（苏州）股份有限公司 | A kind of toilet's corrosive gas source determines method |
| CN110187055A (en) * | 2019-05-09 | 2019-08-30 | 河北先河环保科技股份有限公司 | A kind of factory's circle type monitor between different malodor source producers |
| CN110187054A (en) * | 2019-05-09 | 2019-08-30 | 河北先河环保科技股份有限公司 | It is a kind of for fixing the monitor of malodor source |
| CN113686626A (en) * | 2021-08-26 | 2021-11-23 | 上海化工院检测有限公司 | Replaceable harmful gas detecting and sampling device |
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