CN107132314A - A kind of olfactory sensor array detection equipment and Artificial Olfactory device - Google Patents
A kind of olfactory sensor array detection equipment and Artificial Olfactory device Download PDFInfo
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- CN107132314A CN107132314A CN201710332660.3A CN201710332660A CN107132314A CN 107132314 A CN107132314 A CN 107132314A CN 201710332660 A CN201710332660 A CN 201710332660A CN 107132314 A CN107132314 A CN 107132314A
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- 238000001514 detection method Methods 0.000 title claims abstract description 46
- 239000007789 gas Substances 0.000 claims abstract description 31
- 238000004458 analytical method Methods 0.000 claims abstract description 13
- 238000003909 pattern recognition Methods 0.000 claims abstract description 10
- 238000005070 sampling Methods 0.000 claims abstract description 10
- 230000001154 acute effect Effects 0.000 claims description 6
- 239000000428 dust Substances 0.000 claims description 5
- 239000002912 waste gas Substances 0.000 claims description 4
- 230000005611 electricity Effects 0.000 claims description 2
- 239000012855 volatile organic compound Substances 0.000 abstract description 25
- 230000000505 pernicious effect Effects 0.000 abstract description 13
- 238000000034 method Methods 0.000 abstract description 12
- 238000012544 monitoring process Methods 0.000 abstract description 10
- 239000005416 organic matter Substances 0.000 abstract description 8
- 238000005507 spraying Methods 0.000 abstract description 4
- 230000008569 process Effects 0.000 abstract description 3
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- UIHCLUNTQKBZGK-UHFFFAOYSA-N Methyl isobutyl ketone Natural products CCC(C)C(C)=O UIHCLUNTQKBZGK-UHFFFAOYSA-N 0.000 description 2
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- 239000000356 contaminant Substances 0.000 description 2
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- 229910000041 hydrogen chloride Inorganic materials 0.000 description 1
- 229910000037 hydrogen sulfide Inorganic materials 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/0004—Gaseous mixtures, e.g. polluted air
- G01N33/0009—General constructional details of gas analysers, e.g. portable test equipment
- G01N33/0027—General constructional details of gas analysers, e.g. portable test equipment concerning the detector
- G01N33/0036—General constructional details of gas analysers, e.g. portable test equipment concerning the detector specially adapted to detect a particular component
- G01N33/0047—Organic compounds
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- Investigating Or Analyzing Materials By The Use Of Fluid Adsorption Or Reactions (AREA)
Abstract
The present invention relates to the environmental protection technical field of air pollutants monitoring, there is provided a kind of olfactory sensor array detection equipment and Artificial Olfactory device.The detection device includes inlet channel, chamber, blast pipe, working power, data collecting card and PC computers；Y types air inlet pipe and two inlet plenums are provided with chamber；Multiple accommodating chambers are provided with inlet plenum, single sensor is provided with each accommodating chamber, multiple sensor groups are into sensor array, and the detection device can detect various pernicious gases in volatile organic matter, and accurately calculate the content of the various pernicious gases in volatile organic matter；The Artificial Olfactory device, including sampling unit, signal transacting and pattern recognition analysis unit, and olfactory sensor array detection equipment, the Artificial Olfactory device be applied to can whole on-line spray VOCs monitorings, can rapidly and accurately monitor spraying process VOCs organic pollutions.
Description
Technical field
The present invention relates to the environmental protection technical field of air pollutants monitoring, in particular to a kind of olfactory sensing
Device array detection equipment and Artificial Olfactory device.
Background technology
In recent years, China's air quality deteriorates seriously, and zonal haze weather and ozone pollution event frequently occur, and wave
The long-term a large amount of discharges of hair property organic matter (volatile organic compounds, VOCs) are one of principal elements.According to system
VOCs in meter, city is mainly derived from the discharge of stationary source waste gas, accounts for the 55.5% of whole anthropogenic discharge source.Due to depositing
In the diversification of the enterprise product structure of coating process, coating material species, come in every shape, the technique used in coating process
It is different, cause VOCs discharge link and discharge characteristics also to have nothing in common with each other, also lack (particularly medium and small to apply to application enterprise now
Fill enterprise, such as metal product industry) the effective monitoring means of VOCs pollutions, cause most of enterprise VOCs rows that there is coating process
Putting effectively to control.
VOCs, which is determined, two kinds of common methods, and a kind of is the off-line checking method based on gas-chromatography, and another is base
In the on-line monitoring method of electrochemical sensor.
The off-line checking method of gas-chromatography, its instrument and equipment is expensive, and testing cost is high, it is necessary to which professional grasps
Make, it is impossible to meet the requirement of Site Detection, and off-line method poor in timeliness, it is impossible to reflect gas concentration situation of change in time,
Sample loss and cross pollution are easily caused in sampling, sample storage, transportation, test process is cumbersome, cost is higher.
The sensor, method of on-line monitoring, which only determines VOCs total amounts, can not reflect the emission behaviour of pollution from coatings thing completely.
The content of the invention
It is an object of the invention to provide a kind of olfactory sensor array detection equipment, the olfactory sensor array detection is set
It is standby to detect various pernicious gases in volatile organic matter, and accurately calculate the various pernicious gases in volatile organic matter
Content, can additionally improve detection speed, it is easy for operation, it is practical.
Another object of the present invention is to provide a kind of Artificial Olfactory device, the Artificial Olfactory device is applied to can be whole
On-line spray VOCs is monitored, and can rapidly and accurately monitor spraying process VOCs organic pollutions.
What the present invention was realized in：
A kind of olfactory sensor array detection equipment, including inlet channel, chamber, blast pipe, working power, data are adopted
Truck and PC computers；Y types air inlet pipe and two inlet plenums are provided with chamber；Inlet channel be arranged at chamber it is outer and with
One end connection of Y type air inlet pipe；The two ends of the remote inlet channel of Y type air inlet pipe are connected with two inlet plenums respectively, Y type air inlets
Two connection ends of pipe and two inlet plenums are provided with magnetic valve；Multiple accommodating chambers, each accommodating chamber are provided with inlet plenum
Single sensor is inside provided with, multiple sensor parallels set and constitute sensor array, is electrically connected between multiple sensors；Often
Individual accommodating chamber is connected with Y type air inlet pipe by air shooter, and side of the accommodating chamber away from connection end offers exhaust vent,
Exhaust vent is connected with blast pipe, and the one end of blast pipe away from exhaust vent is provided with aspirator；Sensor array point
It is not connected with working power and data collecting card, data collecting card is connected with the PC computers.
Further, in preferred embodiments of the present invention, Y types air inlet pipe includes main and two branch pipes, and main is with entering
Gas passage is connected, and two branch pipes are connected with two inlet plenums respectively, and the axis of inlet channel and the axis of main are at an acute angle or blunt
Angle.
Further, in preferred embodiments of the present invention, the angle of the axis of branch pipe and the axis of air shooter into
Acute angle or obtuse angle.
Further, in preferred embodiments of the present invention, air shooter is conveyed close to the bore of branch pipe more than gas
Bore of the pipe close to accommodating chamber.
Further, in preferred embodiments of the present invention, the most short distance of inlet plenum and inlet channel for 30~
50mm。
Further, in preferred embodiments of the present invention, in addition to air throttle, air throttle is arranged at the inlet channel
It is interior.
Further, in preferred embodiments of the present invention, in addition to dust cover, it is remote that dust cover is arranged at inlet channel
The port of Y type air inlet pipe.
Further, in preferred embodiments of the present invention, in addition to for controlling the temperature controller of spin manifold temperature, temperature controller
Electrically connected with chamber.
Further, in preferred embodiments of the present invention, the sensor array include a 7 TGS series sensors,
1 PID photoions sensor and 2 electrochemical sensors.
A kind of Artificial Olfactory device, including sampling unit, signal transacting and pattern recognition analysis unit, and above-mentioned smell are passed
Sensor array detection equipment；Olfactory sensor array detection equipment respectively with sampling unit and signal transacting and pattern recognition analysis
Unit is connected.
The beneficial effects of the invention are as follows：
(1) the olfactory sensor array detection equipment that the present invention is provided, due to being provided with Y types air inlet pipe and two inlet plenums
Connection, and two connection ends are respectively arranged with magnetic valve, therefore, the reacting recovery time are waited except that can reduce, additionally it is possible to same
When calculate the average content of every kind of pernicious gas；
(2) the olfactory sensor array detection equipment that the present invention is provided, each inlet plenum is provided with multiple accommodating chambers, each
Single sensor is provided with accommodating chamber, the set-up mode is conducive to the pernicious gas contained in accurate measurement volatile organic matter
The content of species and various pernicious gases；
(3) in the olfactory sensor array detection equipment that the present invention is provided, multiple sensor groups are multiple into sensor array
Sensor is electrically connected, and multiple sensor parallels are set, in the set-up mode in sensor array each sensor to different
Gas has different responses, and the selectivity of sensor array is obtained by the comprehensive sensor signal from multiple cross sensitivities
, the VOCs that sensor array measurement is made up of Multiple components can obtain a multidimensional response vector, with mode identification method pair
Progress judge, to determine VOCs classification or pollution level.
(4) one end of the blast pipe for the olfactory sensor array detection equipment that the present invention is provided away from exhaust vent is set
There is aspirator, this is provided with beneficial to the speed for improving gas into chamber and discharge chamber, so that the detection improved
Speed；
(5) the Artificial Olfactory device that the present invention is provided, reasonable in design is easy to operate, and operating efficiency is higher, Neng Goushi
Now from the quick detection of sample collection-test-analysis modeling-comprehensive pollution result, energy monitor spraying volatility has
The pollution level of organic pollutants, testing result is accurate, has wide range of applications, and can overcome existing VOCs detection means detection composition
It is single, the defect such as cost height.
Brief description of the drawings
In order to illustrate more clearly of the technical scheme of embodiment of the present invention, it will use below required in embodiment
Accompanying drawing be briefly described, it will be appreciated that the following drawings illustrate only certain embodiments of the present invention, therefore be not to be seen as
It is the restriction to scope, for those of ordinary skill in the art, on the premise of not paying creative work, can be with root
Other related accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is the structural representation for the olfactory sensor array detection equipment that the embodiment of the present invention is provided；
Fig. 2 is the composition schematic diagram for the olfactory sensor array detection equipment that the embodiment of the present invention is provided；
Fig. 3 is the composition schematic diagram for the Artificial Olfactory device that the embodiment of the present invention is provided；
Fig. 4 is the workflow diagram for the Artificial Olfactory device that the embodiment of the present invention is provided.
Icon：100- olfactory sensor array detection equipments；110- inlet channels；120- chambers；130- blast pipes；
140- working powers；150- data collecting cards；160-PC computers；170- aspirators；180- temperature controllers；121-Y type air inlets
Pipe；122- inlet plenums；120- chambers；123- magnetic valves；124- accommodating chambers；125- air shooters；200- Artificial Olfactories are filled
Put；210-VOCs sampling units；220- signal transactings and pattern recognition analysis unit.
Embodiment
To make the purpose, technical scheme and advantage of embodiment of the present invention clearer, below in conjunction with present invention implementation
Accompanying drawing in mode, the technical scheme in embodiment of the present invention is clearly and completely described, it is clear that described reality
The mode of applying is a part of embodiment of the invention, rather than whole embodiments.Based on the embodiment in the present invention, ability
The every other embodiment that domain those of ordinary skill is obtained under the premise of creative work is not made, belongs to the present invention
The scope of protection.Therefore, the detailed description of embodiments of the present invention below to providing in the accompanying drawings, which is not intended to limit, wants
The scope of the present invention of protection is sought, but is merely representative of the selected embodiment of the present invention.Based on the embodiment in the present invention,
The every other embodiment that those of ordinary skill in the art are obtained under the premise of creative work is not made, belongs to this
Invent the scope of protection.
In the description of the invention, it is to be understood that term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width ",
" thickness ", " on ", " under ", "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom ", " interior ", " outer ", " up time
The orientation or position relationship of the instruction such as pin ", " counterclockwise " are, based on orientation shown in the drawings or position relationship, to be for only for ease of
The description present invention and simplified description, rather than indicate or imply that the equipment or element of meaning must have specific orientation, Yi Te
Fixed azimuth configuration and operation, therefore be not considered as limiting the invention.
In addition, term " first ", " second " are only used for describing purpose, and it is not intended that indicating or implying relative importance
Or the implicit quantity for indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can express or
Implicitly include one or more this feature.In the description of the invention, " multiple " are meant that two or more,
Unless otherwise specifically defined.
In the present invention, unless otherwise clearly defined and limited, term " installation ", " connected ", " connection ", " fixation " etc.
Term should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or integrally；Can be that machinery connects
Connect or electrically connect；Can be joined directly together, can also be indirectly connected to by intermediary, can be in two elements
The connection in portion or the interaction relationship of two elements.For the ordinary skill in the art, can be according to specific feelings
Condition understands the concrete meaning of above-mentioned term in the present invention.
In the present invention, unless otherwise clearly defined and limited, fisrt feature second feature it " on " or it " under "
Can directly it be contacted including the first and second features, it is not direct contact but by it that can also include the first and second features
Between other characterisation contact.Moreover, fisrt feature second feature " on ", " top " and " above " to include first special
Levy directly over second feature and oblique upper, or be merely representative of fisrt feature level height higher than second feature.Fisrt feature exists
Second feature " under ", " lower section " and " following " fisrt feature that includes are immediately below second feature and obliquely downward, or be merely representative of
Fisrt feature level height is less than second feature.
Embodiment
Fig. 1 and Fig. 2 are referred to, as illustrated, olfactory sensor array detection equipment 100, including inlet channel 110, examination
Tryoff 120, blast pipe 130, working power 140, data collecting card 150 and PC computers 160.
Wherein, the structure of chamber 120 is not particularly limited, it is preferable that in the present embodiment, is set in chamber 120
There are Y types air inlet pipe 121 and two inlet plenums 122.
Y types air inlet pipe 121 includes main (unmarked in figure) and two branch pipes (unmarked in figure).Wherein, main is remote
One end of branch pipe is connected with inlet channel 110, and two two ends of the branch pipe away from main are connected with two inlet plenums 122 respectively.
It is convenient in view of air inlet, it is preferable that inlet channel 110 is arranged on outside chamber 120.Volatile organic waste gas is from entering
After gas passage 110 enters, by main, enter back into after two branch pipes, enter back into two inlet plenums 122.
It should be noted that in the present embodiment, air throttle (not shown) is provided with inlet channel 110 with control into
Enter the flow and flow velocity of gas.Preferably, in order to prevent the suspended particle clogging inlet channel 110 in air, in the present embodiment,
Dust cover (not shown) is additionally provided with the port of the remote Y types air inlet pipe 121 of inlet channel 110.
People's nose is flowed into order to preferably imitate gas, it is preferable that in the present embodiment, the axis and main of inlet channel 110
Axis is at an acute angle or obtuse angle.The setting can also be played a part of helping fluid to accelerate.
Referring to Fig. 1, in the present embodiment, two connection ends of Y types air inlet pipe 121 and two inlet plenums 122 are (in figure not
Mark) it is provided with magnetic valve 123.Being provided with for magnetic valve 123 is beneficial to according to actual needs come while opening two inlet plenums
122 or only open one of inlet plenum 122.When opening two inlet plenums 122, be conducive to more accurately monitoring volatility
The species and content of pernicious gas in organic gas, can calculate the average value of pernicious gas.Sent out when needing follow-on test difference
During pernicious gas in waving property organic gas, without being passed through fresh air after first part of sample when having tested, when waiting one section
Between after be monitored another sample again, two inlet plenums 122 can be opened by priority and measured.When can save monitoring
Between there is provided monitoring efficiency.
Referring to Fig. 1, being provided with multiple accommodating chambers 124 in inlet plenum 122, single biography is provided with each accommodating chamber 124
Sensor (not shown), multiple sensor groups are into sensor array.
Specifically, in the present embodiment, sensor array includes 7 TGS series sensors, 1 PID photoions sensing
Device and 2 electrochemical sensors.Each sensor has different responses to different gas in array.These olfactory sensings
Device is respectively to carbon monoxide, sulfur dioxide, nitric oxide, nitrogen dioxide, hydrogen chloride, hydrogen sulfide, ammonia, hydrogen phosphide, epoxy second
Alkane, chlorine toluene, dimethylbenzene, styrene, methyl iso-butyl ketone (MIBK) etc. have sensitiveness, and these sensors are in selectivity and sensitivity
Aspect can meet the requirement detected to VOCs escaping gases.
The selectivity of sensor array is obtained by the comprehensive sensor signal from multiple cross sensitivities.Sensor
The VOCs that array measurement is made up of Multiple components, can obtain a multidimensional response vector, it is sentenced with mode identification method
It is disconnected, to determine VOCs classification or pollution level.
In the present embodiment, multiple sensor electrical connections, so as to which feedback information is uniformly transported into data collecting card
150.The set-up mode of multiple sensors is not particularly limited, it is contemplated that the accuracy of monitoring, it is preferable that multiple sensor parallels
Set.
Referring to Fig. 1, in the present embodiment, each accommodating chamber 124 and Y types air inlet pipe 121 is connected by air shooter 125
It is logical.This is provided with the content beneficial to every kind of pernicious gas in accurate measurement VOC.
It should be noted that flowing into people's nose, the axis of branch pipe and the axis of air shooter 125 to preferably imitate gas
Angle is at an acute angle or obtuse angle.And in order to improve the speed of gas sensor today, it is preferable that air shooter 125 is close to Y types
The bore of air inlet pipe 121 is more than bore of the air shooter 125 close to sensor.People's nose is flowed into order to preferably imitate gas, it is excellent
The most short distance of selection of land, connection end and inlet channel 110 is 30-50mm.
Referring to Fig. 1, side of the accommodating chamber 124 away from connection end offers exhaust vent (not marked in figure), waste gas
Exhaust outlet is connected with blast pipe 130, to facilitate waste gas to discharge chamber 120.
Preferably, in the present embodiment, aspirator 170 is additionally provided with, the set-up mode of aspirator 170 is not done specifically
Limitation, it is preferable that aspirator 170 is arranged on the one end of blast pipe 130 away from exhaust vent.The setting of aspirator 170
Be conducive to improving the speed that gas enters chamber 120 and discharge chamber 120, so that the detection speed improved.
In the present embodiment, in addition to for controlling the temperature controller 180 of spin manifold temperature.Temperature controller 180 and the electricity of chamber 120
Connection, sensor array is connected with working power 140 and data collecting card 150 respectively, data collecting card 150 and PC computers
160 connections.
It should be noted that in the present embodiment, data collecting card 150 is A/D capture cards, as preferred scheme,
Data collecting card 150 can use 16 multi-functional data A/D capture cards of American National instrument (NI) company, A/D capture card energy
Enough analog electric signals for exporting modulate circuit are converted to the manageable digital quantity of computer.
Referring to Fig. 3, the present embodiment additionally provides a kind of Artificial Olfactory device 200, including VOCs sampling units 210, letter
Number processing and pattern recognition analysis unit 220, and olfactory sensor array detection equipment 100.Wherein, olfactory sensor array
Detection device 100 is connected with VOCs sampling units 210 and signal transacting and pattern recognition analysis unit 220 respectively.
The workflow of the Artificial Olfactory device 200 is as shown in figure 4, VOCs sampling units 210 are adopted to air sample
Collect and carry out after simply pretreatment, air sample is delivered to olfactory sensor array detection equipment 100 to various volatility
The concentration of organic pollution carries out data acquisition, and olfactory sensor array detection equipment 100 converts the concentration information collected
For electric signal, and it is sent to signal transacting and pattern recognition analysis unit 220.Signal transacting and pattern recognition analysis unit 220
Data are collected, analysis modeling, and calculate VOCs total concentration.
In summary, the olfactory sensor array detection equipment that the present embodiment is provided can be detected in volatile organic matter
Various pernicious gases, and the content of the various pernicious gases in volatile organic matter is accurately calculated, it can additionally improve inspection
Degree of testing the speed, it is easy for operation, it is practical.
The Artificial Olfactory device detected provided by the present invention for spraying volatile organic contaminant, reasonable in design,
Easy to operate, operating efficiency is higher, can realize from the quick of sample collection-test-analysis modeling-comprehensive pollution result
Detection, energy monitor sprays the pollution level of volatile organic contaminant, and testing result is accurate, has wide range of applications, can
To overcome existing VOCs detection means detection composition single, the defect such as cost height.
The preferred embodiment of the present invention is the foregoing is only, is not intended to limit the invention, for this area
For technical staff, the present invention can have various modifications and variations.Within the spirit and principles of the invention, that is made is any
Modification, equivalent substitution, improvement etc., should be included in the scope of the protection.
Claims (10)
1. a kind of olfactory sensor array detection equipment, it is characterised in that including inlet channel, chamber, blast pipe, work electricity
Source, data collecting card and PC computers；
Y types air inlet pipe and two inlet plenums are provided with the chamber；
The inlet channel is arranged at outside the chamber and connected with one end of the Y types air inlet pipe；
The two ends of the remote inlet channel of the Y types air inlet pipe are connected with two inlet plenums respectively, the Y types air inlet
Two connection ends of pipe and two inlet plenums are provided with magnetic valve；
Multiple accommodating chambers are provided with the inlet plenum, single sensor, multiple biographies are provided with each accommodating chamber
Sensor is arranged in parallel and constitutes sensor array, is electrically connected between multiple sensors；
Each accommodating chamber is connected with the Y types air inlet pipe by air shooter, and the accommodating chamber is away from the connection end
Side offer exhaust vent, the exhaust vent is connected with the blast pipe, and the blast pipe is away from the waste gas
One end of exhaust outlet is provided with aspirator；
The sensor array is connected with the working power and the data collecting card respectively, the data collecting card with it is described
PC computers are connected.
2. olfactory sensor array detection equipment according to claim 1, it is characterised in that the Y types air inlet pipe includes
Main and two branch pipes, the main are connected with the inlet channel, and two branch pipes connect with two inlet plenums respectively
Connect, the axis of the axis of the inlet channel and the main is at an acute angle or obtuse angle.
3. olfactory sensor array detection equipment according to claim 2, it is characterised in that the axis of the branch pipe and institute
State the axis of air shooter angle is at an acute angle or obtuse angle.
4. olfactory sensor array detection equipment according to claim 3, it is characterised in that the air shooter is close
The bore of the branch pipe is more than bore of the air shooter close to the accommodating chamber.
5. olfactory sensor array detection equipment according to claim 4, it is characterised in that the inlet plenum with it is described enter
The most short distance of gas passage is 30~50mm.
6. olfactory sensor array detection equipment according to claim 1, it is characterised in that described also including air throttle
Air throttle is arranged in the inlet channel.
7. olfactory sensor array detection equipment according to claim 6, it is characterised in that described also including dust cover
Dust cover is arranged at port of the inlet channel away from the Y types air inlet pipe.
8. olfactory sensor array detection equipment according to claim 1, it is characterised in that also including for controlling casing
The temperature controller of temperature, the temperature controller is electrically connected with the chamber.
9. olfactory sensor array detection equipment according to claim 1, it is characterised in that the sensor array includes
Individual 7 TGS series sensors, 1 PID photoions sensor and 2 electrochemical sensors.
10. a kind of Artificial Olfactory device, it is characterised in that including sampling unit, signal transacting and pattern recognition analysis unit, with
And the olfactory sensor array detection equipment described in claim 1~9 any one；The olfactory sensor array detection equipment
It is connected respectively with the sampling unit and the signal transacting and pattern recognition analysis unit.
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