CN110068524A - Atmospheric particulates are leaded and its isotope detection system - Google Patents
Atmospheric particulates are leaded and its isotope detection system Download PDFInfo
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- CN110068524A CN110068524A CN201910475963.XA CN201910475963A CN110068524A CN 110068524 A CN110068524 A CN 110068524A CN 201910475963 A CN201910475963 A CN 201910475963A CN 110068524 A CN110068524 A CN 110068524A
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- 238000001514 detection method Methods 0.000 title claims abstract description 111
- 239000000523 sample Substances 0.000 claims abstract description 220
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims abstract description 67
- 238000001228 spectrum Methods 0.000 claims abstract description 30
- 239000000443 aerosol Substances 0.000 claims abstract description 12
- 238000005259 measurement Methods 0.000 claims abstract description 12
- 239000002245 particle Substances 0.000 claims abstract description 12
- 238000000034 method Methods 0.000 claims abstract description 11
- 238000012360 testing method Methods 0.000 claims abstract description 9
- 238000012545 processing Methods 0.000 claims description 7
- 239000002516 radical scavenger Substances 0.000 claims description 6
- 238000003780 insertion Methods 0.000 claims description 5
- 230000037431 insertion Effects 0.000 claims description 5
- 238000012216 screening Methods 0.000 claims description 4
- 238000006243 chemical reaction Methods 0.000 claims description 3
- 238000004891 communication Methods 0.000 claims description 3
- 238000000354 decomposition reaction Methods 0.000 claims description 3
- 230000000284 resting effect Effects 0.000 claims description 3
- 230000006835 compression Effects 0.000 claims description 2
- 238000007906 compression Methods 0.000 claims description 2
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 7
- 238000004458 analytical method Methods 0.000 description 3
- 235000013399 edible fruits Nutrition 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 238000010183 spectrum analysis Methods 0.000 description 2
- 230000004913 activation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000002536 laser-induced breakdown spectroscopy Methods 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 238000001819 mass spectrum Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 238000011897 real-time detection Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/22—Devices for withdrawing samples in the gaseous state
- G01N1/2273—Atmospheric sampling
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/22—Devices for withdrawing samples in the gaseous state
- G01N1/24—Suction devices
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume, or surface-area of porous materials
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/62—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating the ionisation of gases, e.g. aerosols; by investigating electric discharges, e.g. emission of cathode
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/22—Devices for withdrawing samples in the gaseous state
- G01N1/24—Suction devices
- G01N2001/245—Fans
Abstract
The invention discloses a kind of Atmospheric particulates are leaded and its isotope detection system, including gas collection module, gas detection module and sample supply unit；Gas collection module includes unmanned plane and pedestal；Unmanned plane includes exhaust pipe, unmanned plane sample channel and fan；Sample supply unit includes gas sample container；Pedestal includes pedestal, has pedestal sample channel；The fixed lower section for being located at pedestal of conveyance conduit；Gas detection module includes the individual particle mass spectrograph of laser irradiation device, laser pick-off unit, spectroanalysis instrument and mass spectrograph probe and measurement aerosol；When gas sample container is moved to detection section, laser irradiation device projects laser, and for laser action after gas, spectroanalysis instrument, which receives spectrum and analyzes, obtains the testing result of gas；Mass spectrograph probe protrudes into gas sample container, and the data detected pass to the individual particle mass spectrograph of measurement aerosol, obtains the Mass Spectrometer Method result of gas.The present invention has many advantages, such as accurate, quick.
Description
Technical field
The invention belongs to environmental testing, it is related to a kind of gas detecting system more particularly to a kind of Atmospheric particulates contains
Lead and its isotope detection system.
Background technique
Currently, Atmospheric particulates are leaded and its most of isotope detection need it is artificial collect or other collection methods, it is long
Artificially collecting work and may will affect the human health of collector person for time, endangers larger.In addition, the methods of artificial collection exists
It is not accurate enough when acquisition gas sample, it is easy to be mixed into original gas in collection container or conveying equipment, leads to gas detection knot
Fruit error is larger, cannot obtain correct accurately gas performance testing result.In addition, the methods of artificial collection can not achieve data
Real-time detection, need after acquiring great amount of samples mostly, then uniformly send to detection device and be monitored, whole process time-consuming compared with
It is long, and the real-time performance data of gas can not be obtained, since gas fluidity is larger, the result of this delay is exported, and is dropped significantly
The low subsequent applications of gas detection result, for example, when carrying out pollution control work, the inspection of the gas before certain time
It is smaller etc. to survey result referential.
Summary of the invention
The present invention provides that a kind of Atmospheric particulates are leaded and its isotope detection system, to overcome the deficiencies of existing technologies.
To achieve the above object, the present invention provides that a kind of Atmospheric particulates are leaded and its isotope detection system, including gas
Body collection module, gas detection module and sample supply unit；Gas collection module includes unmanned plane and pedestal；Unmanned plane includes
Body, several wings, exhaust pipe, unmanned plane sample channel and fan, wing are arranged on body, drive unmanned plane during flying；
Exhaust pipe is arranged in body, and top can communicate with the outside world；Unmanned plane sample channel is vertically arranged in body, top and exhaust
The bottom end of pipe is connected to, and the top of unmanned plane sample channel is arranged in fan；Sample supply unit includes gas sample container, gas
Sample container has openable top cover and bottom cover, and the side wall of gas sample container is transparent；Gas sample container is removably set
It is placed in unmanned plane sample channel, positioned at the lower section of fan；The top of exhaust pipe, the top cover and bottom cover of gas sample container, nothing
Man-machine sample channel is located at partially opening below gas sample container, and fan rotation, gas continues logical from unmanned plane sample
The opening part in road enters gas sample container, then is discharged upwardly through exhaust pipe, and the top cover and bottom cover of gas sample container are closed
It closes, gas collection is completed；Pedestal includes pedestal, and pedestal has the pedestal sample channel being vertically arranged, and unmanned plane rests in pedestal
On, unmanned plane sample channel is connected with pedestal sample channel；Sample supply unit further includes conveyance conduit and bracket；Delivery pipe
The fixed lower section for being located at pedestal in road, the top of conveyance conduit is connected with pedestal sample channel；The top of bracket and gas sample
Container is detachably connected, and bracket protrudes into unmanned plane sample channel, after connecting with gas sample container, can drive gas sample container
Across pedestal sample channel, move into conveyance conduit；Conveyance conduit has detection section, and the tube wall for detecting section is transparent；Gas detection
Module includes the individual particle matter of laser irradiation device, laser pick-off unit, spectroanalysis instrument, mass spectrograph probe and measurement aerosol
Spectrometer；Laser irradiation device and laser pick-off unit are respectively arranged on two sides opposite outside detection section, and gas sample container is moved to
When detecting section, laser irradiation device projects laser, after gas of the laser action in gas sample container, by laser pick-off unit
It receives and forms spectrum；Spectroanalysis instrument is connect with laser pick-off unit, and spectroanalysis instrument receives spectrum, and analyzes and obtain gas
Testing result；Mass spectrograph probe is connect with the individual particle mass spectrograph of measurement aerosol；The side wall of gas sample container has can
The detection hole of opening and closing；The openable detection hole of mass spectrograph probe, protrudes into gas sample container, receives and detect by laser
Gas after irradiation, the data detected pass to the individual particle mass spectrograph of measurement aerosol, obtain the Mass Spectrometer Method knot of gas
Fruit.
Further, the present invention provides that a kind of Atmospheric particulates are leaded and its isotope detection system, can also have in this way
Feature: where gas detection module further include detection ring；Ring set is detected outside the detection section of conveyance conduit, laser irradiation dress
It sets and is each attached on detection ring with laser pick-off unit, and be located at position opposite on detection ring；It detects around its center rotating,
It moves up and down simultaneously, fluctuation range is the bottom position from the top position of gas sample container to gas sample container.
Further, the present invention provides that a kind of Atmospheric particulates are leaded and its isotope detection system, can also have in this way
Feature: where laser pick-off unit includes prism, grating and spectrum receiving device, prism be located at conveyance conduit and grating it
Between；The grating side that there are grating several successively to connect；Grating side is oppositely arranged with prism, and grating can be around several gratings
Center line rotation among side, when rotation, several grating sides are successively opposite with prism, receive and screen prism decomposition
Spectrum；Spectrum receiving device is set in grating, the spectrum after receiving the screening of grating side, spectrum receiving device and spectroanalysis instrument
Connection, is sent to spectroanalysis instrument for the spectrum of collection.
Further, the present invention provides that a kind of Atmospheric particulates are leaded and its isotope detection system, can also have in this way
Feature: where bracket includes disk and the body of rod, and disk is fixed on the top of the body of rod；The bottom cover of disk and gas sample container
It is detachably connected, when connection, the body of rod is mobile, and gas sample container is driven to move up and down.
Further, the present invention provides that a kind of Atmospheric particulates are leaded and its isotope detection system, can also have in this way
Feature: where gas detection module further includes baffle；Baffle is set to outside the apical position of detection section, can be by detecting section pipe
The opening of wall moves into detection section；The inner wall of the disk of bracket and gas sample container, which matches, to be agreed with；Gas sample container is located at
When detecting section, baffle moves into detection section, and gear is in the upper end of gas sample container, and the bottom cover of gas sample container is opened, on bracket
It moves, the disk compression that the gas in gas sample container is shifted up.
Further, the present invention provides that a kind of Atmospheric particulates are leaded and its isotope detection system, can also have in this way
Feature: where the body of unmanned plane has the middle part body and lower part body that can separate up and down, and lower part body is located at middle part machine
The lower section of body；Unmanned plane sample channel is divided into upper channel section and lower channel section, is respectively arranged in middle part body and lower part body；Gas
Body sample container is removably disposed in upper channel section；Unmanned plane further includes several telescopic connecting rods, connecting rod
Upper end is fixed in the body of middle part, and lower end is fixed in the body of lower part；Connecting rod elongation, middle part body are separated with lower part body,
Gas can the gap between middle part body and lower part body enter unmanned plane sample channel；The bottom end of unmanned plane, which is additionally provided with, to be beaten
The unmanned plane bottom cover that open and close are closed, when unmanned plane bottom cover is closed, the bottom end of unmanned plane is sealed, when opening, gas sample container
It can be removed from unmanned plane sample channel.
Further, the present invention provides that a kind of Atmospheric particulates are leaded and its isotope detection system, can also have in this way
Feature: where pedestal further includes base shell, and the top surface of base shell has openable solar panel；Pedestal is solid
It is positioned in pedestal, pedestal is charging module, is subjected to the electric energy that solar panel collects conversion；The top of pedestal has ring
The charging plug of shape is circumferentially positioned at around pedestal sample channel top；The bottom end of unmanned plane has the charging slot of annular,
It is circumferentially positioned at around gas sample passageway bottom end；Charging slot matches with charging plug, and charging plug can be inserted into charging
Slot, after insertion, pedestal sample channel positioned at charging plug center connects with the unmanned plane sample channel at charging slot center
It is logical；Unmanned plane flies into base shell, and when resting on pedestal, the charging of the charging plug insertion unmanned plane bottom end on pedestal top is inserted
In slot, charging module is unmanned plane charging.
Further, the present invention provides that a kind of Atmospheric particulates are leaded and its isotope detection system, can also have in this way
Feature: further include air processing unit；Air processing unit includes exhaust pipe and scavenger fan；One end of exhaust pipe with
The bottom end side of conveyance conduit is connected, and the other end is in communication with the outside；Exhaust pipe is L-shaped, and scavenger fan is set to exhaust pipe
Interior turning；When gas sample container is displaced downwardly to the bottom end of conveyance conduit, detection hole is opposite with exhaust pipe, and detection hole is beaten
It opens, air ejector fan rotation, the gas in gas sample container is discharged.
Further, the present invention provides that a kind of Atmospheric particulates are leaded and its isotope detection system, can also have in this way
Feature: further include shell；Base shell is fixed on the upper end of shell；The top of conveyance conduit is protruded into base shell, top
It is connected with the bottom end of pedestal sample channel, the remainder of conveyance conduit is set in shell vertically.
There is provided that a kind of Atmospheric particulates are leaded and its isotope detection system the beneficial effects of the present invention are: the present invention,
Gas sample is acquired by unmanned plane, and individually stores and convey gas sample, gas sample by the way that gas sample container is arranged
Container is an individual space, and gas sample is completely isolated with the external world, is avoided when directly transporting gas by pipeline, gas
Gas mixing in body sample and pipeline, leads to the problem that sample is impure.Secondly, gas sample holds after the completion of unmanned plane acquisition
Device is transported to gas detection module and is detected, and reduces drain on manpower and material resources, while can guarantee the " fresh of data again
Degree ".Gas detection module includes spectrum analysis and mass spectral analysis, and two kinds of detections combine, and obtains spectrum and mass spectrum two-dimensional signal,
Analysis obtains the exact composition information of Atmospheric particulates, all-sidedly and accurately detects atmosphere pollution.It wherein, further include detection ring,
The laser irradiation device and laser pick-off unit that position can be driven opposite are rotated and are moved up and down, thus to situations such as various density
Gas sufficiently bombarded, and realize accurate reception to laser, various aspects improve the accuracy of testing result.In addition, four
A grating side is used to screen four isotopes of lead, with strong points.The present invention can be realized automatic, convenient, quick, more complete
Atmosphere pollution is detected to face, provides real time data support for pollutant control.
Detailed description of the invention
Fig. 1 is that Atmospheric particulates are leaded and its structural schematic diagram of the pedestal of isotope detection system and upper part enclosure；
Fig. 2 is that Atmospheric particulates are leaded and its structural schematic diagram of the unmanned plane of isotope detection system；
Fig. 3 is the structural schematic diagram of gas sample container；
Fig. 4 is the middle part body of unmanned plane and the structural schematic diagram of lower part body discrete state；
Fig. 5 is the schematic view of the front view of gas detection module；
Fig. 6 is the overlooking structure diagram of gas detection module；
Fig. 7 is the structural schematic diagram of the different motion position of gas detection module；
Fig. 8 is the structural schematic diagram of the unit of gas treatment.
Specific embodiment
Illustrate a specific embodiment of the invention below in conjunction with attached drawing.
The present invention provides that a kind of Atmospheric particulates are leaded and its isotope detection system, including gas collection module, gas
Detection module, sample supply unit and air processing unit.
As illustrated in fig. 1 and 2, gas collection module includes unmanned plane 11 and pedestal 12.
Unmanned plane 11 includes body 111, several wings 112, exhaust pipe 113, fan 114 and unmanned plane sample channel
115.Wing 112 is arranged on body 111, includes driving device, unmanned plane 11 can be driven to fly.
Exhaust pipe 113 is arranged in body 111, and top can communicate with the outside world, and gas can be discharged.Preferably, such as Fig. 2 institute
Show, exhaust pipe 113 is vertically arranged in the top 1111 of body 111, and top has can be by the lid 1131 of lifting closure, lid
When body 1131 rises, the top of exhaust pipe 113 is communicated with the outside world, after lid 1131 declines, the top closure of exhaust pipe 113.Machine
The top 1111 of body 111 is other Synthesis Departments such as battery.
Unmanned plane sample channel 115 is vertically arranged in body 111, and top is connected to 113 bottom end of exhaust pipe.Fan 114
The top of unmanned plane sample channel 115 is set.
Sample supply unit includes gas sample container 21.As shown in figure 3, gas sample container 21 is cylindrical, have
Openable top cover and bottom cover.The side wall of gas sample container is transparent.
Gas sample container 21 is removable installed in unmanned plane sample channel 115, positioned at the lower section of fan 114.
When 11 flight collecting sample of unmanned plane, the top of exhaust pipe 113, gas sample container 21 top cover and bottom cover, with
And unmanned plane sample channel 115 is located at partially opening for the lower section of gas sample container 21, fan 114 rotates, gas continue from
The opening part of unmanned plane sample channel 115 enters gas sample container 21, then is discharged upwardly through exhaust pipe 113.Above-mentioned mistake
Original gas in Cheng Kexian vent gas sample container 21 is re-introduced into other freshly harvested samples.Then, gas sample container
21 top cover and bottom cover closure, gas collection are completed.At this point, unmanned plane sample channel 115, exhaust pipe 113 are also closed, unmanned plane
11 can continue smooth flight.
When acquiring gas sample, the unmanned plane sample channel 115 positioned at 21 lower section of gas sample container is opened.Specifically,
The body 111 of unmanned plane 11 has the middle part body 1112 and lower part body 1113 that can be separated up and down.Lower part body 1113 is located at
The lower section of middle part body 1112.The lower section on the fixed top 1111 for being located at body 111 of middle part body 1112.
Unmanned plane sample channel 115 is divided for upper channel section and lower channel section, and middle part body 1112 and lower part machine are respectively arranged on
In body 1113.Gas sample container 21 is removably disposed in upper channel section.
Unmanned plane 11 further includes several telescopic connecting rods 116.The upper end of connecting rod 116 is fixed on middle part body
In 1112, lower end is fixed in lower part body 1113.
As shown in figure 4, connecting rod 116 extends when acquiring gas sample, middle part body 1112 divides with lower part body 1113
Open, due to fan 114 rotate, gas can the gap between middle part body 1112 and lower part body 1113 enter unmanned plane sample
Channel 115 enters back into gas sample container 21, to realize the acquisition of gas.Compared to from other positions (for example, unmanned press proof
The bottom end in this channel) gas is introduced, the separated mode of this body can make the flight of unmanned plane more stable.
Preferably, the bottom end of unmanned plane 11 is additionally provided with openable and closure unmanned plane bottom cover 117, unmanned plane bottom cover 117
When closure, the bottom end of unmanned plane 11 is sealed, and sealing can make 11 flight course of unmanned plane more stable.When opening, gas sample
Container 21 can be removed from unmanned plane sample channel 115.
Pedestal 12 includes pedestal 121.The center of pedestal 121 has the pedestal sample channel for being vertically arranged and penetrating up and down
122.Unmanned plane 11 can rest on pedestal 121, and when stop, unmanned plane sample channel 115 is connected with pedestal sample channel 122
It is logical.
Further, pedestal 12 further includes base shell 123.The top surface of base shell 123 has openable solar-electricity
Pond plate.Pedestal 121 is fixed to be located in pedestal 12, and pedestal 121 is charging module, is subjected to the electricity that solar panel collects conversion
Energy.The top of pedestal 121 has the charging plug of annular, is circumferentially positioned at around 122 top of pedestal sample channel.
The bottom end of unmanned plane has the charging slot 118 of annular, is circumferentially positioned at the week of 115 bottom end of gas sample passageway
It encloses.
Charging slot 118 matches with charging plug, and charging plug can be inserted into charging slot, after insertion, is located at charging and inserts
The pedestal sample channel 122 at head center, is connected to the unmanned plane sample channel 115 at 118 center of charging slot.Unmanned plane 11 is flown into
Base shell 123, when resting on pedestal 121, the charging slot of charging plug insertion 11 bottom end of unmanned plane on 121 top of pedestal
In 118, charging module is unmanned plane charging.
Sample supply unit further includes conveyance conduit 22 and bracket 23.
The fixed lower section for being located at pedestal 121 of conveyance conduit 22.The top of conveyance conduit 22 is connected with pedestal sample channel 122
It is logical.
The top of bracket 23 is detachably connected with gas sample container 21.Unmanned plane sample channel 115, pedestal sample channel
122 and the section of conveyance conduit 22 be circle, and internal diameter is equal, and opposite connection one by one, forms the channel of an entirety.
Bracket 23 protrudes into unmanned plane sample channel 115, after connecting with gas sample container 21, gas sample container 21 can be driven to pass through seat
Body sample channel 122 moves into conveyance conduit 22.
As shown in figure 5, conveyance conduit 22 has detection section 221.The tube wall for detecting section 221 is transparent.
Gas detection module includes laser generator 34, laser irradiation device 31, laser pick-off unit 32 and spectrum point
Analyzer 33.Laser irradiation device 31 and laser pick-off unit 32 are respectively arranged on two sides opposite outside detection section 221.Laser generates dress
34 are set to connect with laser irradiation device 31.When gas sample container 21 is moved to detection section 221, laser generator 34, which generates, to swash
Light projects laser by laser irradiation device 31, after gas of the laser action in gas sample container 21, by laser pick-off list
Member 32 receives and forms spectrum.Spectroanalysis instrument 33 is connect with laser pick-off unit 32, and spectroanalysis instrument 33 receives spectrum, and divides
Analysis obtains the testing result of gas.
Further, as illustrated in figs. 5-7, gas detection module further includes detection ring 35.
35 sets of ring of detection is outside the detection section 221 of conveyance conduit 22, the position at its center of conveyance conduit 22.Laser irradiation
Device 31 and laser pick-off unit 32 are each attached on detection ring 35, and are located at position opposite on detection ring 35.Detect ring 35
It around its center rotating, moves up and down simultaneously, fluctuation range is from the top position of gas sample container 21 to gas sample
The bottom position of container 21.
Laser irradiation device 31 and laser pick-off unit 32 are moved with detection ring 35, i.e., around gas sample container 21
Rotation moves up and down simultaneously, which can make laser bombarding gas from different directions, guarantees laser sufficiently banging to sample
It hits, avoids under test gas because density difference causes to bombard insufficient problem, realization accurately measures.In addition, laser irradiation device
31 and laser pick-off unit 32 be located at relative position, and movement simultaneously is, it can be achieved that accurate reception to laser, is further ensured that survey
Measure the accuracy of result.
Specifically, laser pick-off unit 32 includes prism 321, grating 322 and spectrum receiving device 323.Prism 321 is located at
Between conveyance conduit 22 and grating 322.
There are four the grating sides 3221 successively to connect for the tool of grating 322.Four grating sides 3221 are to be respectively used to screen
The grating of the different isotopes of four of lead, the screening of the isotope of the corresponding lead in a grating side 3221.
Grating side 3221 is oppositely arranged with prism 321, and grating 322 can be around the center line among four grating sides 3221
Rotation, when rotation, four grating sides 3221 are successively opposite with prism 321, receive and screen the spectrum of the decomposition of prism 321.
Spectrum receiving device 323 is set in grating 322, receives the spectrum after grating side 3221 is screened, and spectrum receives dress
It sets 323 to connect with spectroanalysis instrument 33, the spectrum of collection is sent to spectroanalysis instrument 33.
The analysis of spectroanalysis instrument 33 obtains the concrete content of lead and its isotope.In the in store related lead of spectroanalysis instrument 33
And its isotope mass number (204,206,207,208) and other in relation to data, especially their LIBS characteristic spectrum,
Through the data that measure compared with the data of preservation, can with to more intuitive and accurately analyze.
In the present embodiment, grating 322 also can have the grating side of other quantity and type, for other elements
The screening of different isotopes can be equipped with according to detection object.
Gas detection module further includes the individual particle mass spectrograph 37 of mass spectrograph probe 36 and measurement aerosol.Mass spectrograph probe
36 connect with the individual particle mass spectrograph 37 of measurement aerosol.
As shown in figure 3, the side wall of gas sample container 21 has the detection hole 211 that can be opened and closed.
Mass spectrograph is popped one's head in 36 openable detection holes 211, is protruded into gas sample container 21, is received and detect and be irradiated with a laser
Gas afterwards, the data detected pass to measurement aerosol individual particle mass spectrograph 37, obtain the Mass Spectrometer Method of gas as a result,
Obtain the type of all elements in gas.After the completion of detection, mass spectrograph probe 36 is removed from detection hole 211, and detection hole 211 is closed
Close sealing.
Further, bracket 23 includes disk 231 and the body of rod 232.Disk 231 is fixed on the top of the body of rod 232.Disk
231 are detachably connected with the bottom cover of gas sample container 21, and when connection, the body of rod 232 is mobile, drives about 21 gas sample container
It is mobile.The body of rod 232 can drive its movement by electric devices such as motors.
Gas detection module further includes baffle 38.Baffle 38 is set to outside the apical position of detection section 221, can be by detecting section
The opening of 221 tube walls moves into detection section 221.
The disk 231 of bracket 23 and the inner wall of gas sample container 21, which match, to be agreed with.
When gas sample container 21 is located at detection section 221, baffle 38 moves into detection section 221, keeps off in gas sample container 21
Upper end.At this point, the bottom cover of gas sample container 21 is opened, bracket 23 is moved up, and the gas in gas sample container 21 is shifted up
Disk 231 compress, gas concentration improve, in order to detect.
Preferably, the bottom cover outer surface of gas sample container 21 applies magnetic material, and disk 231 is electromagnet material, leads to
The electric wire crossed in electric device and the body of rod 232 can activate electromagnet.When activation, bottom cover and the bracket 23 of gas sample container 21
Disk 231 attracts connection, i.e., gas sample container 21 is fixedly connected with disk 231, and bracket 23 can drive gas sample container 21
It moves up and down.When power-off, gas sample container 21 and the connectionless relationship of bracket 23, bracket 23 can be removed.Finger is removed, when bracket 23
When being conveyed into unmanned plane sample channel 115 by gas sample container 21, prepare to collect gas, gas sample container 21 is fixed on wind
Behind 114 lower section of fan, bracket 23 is disconnected, and downward out unmanned plane 11, unmanned plane 11 can flight collecting sample.
As shown in figure 8, air processing unit includes exhaust pipe 41 and scavenger fan 42.
One end of exhaust pipe 41 is connected with the bottom end side of conveyance conduit 22, and the other end is in communication with the outside.Exhaust pipe
Road 41 is L-shaped, and scavenger fan 42 is set to the turning in exhaust pipe 41.
When gas sample container 21 is displaced downwardly to the bottom end of conveyance conduit 22, detection hole 211 and exhaust pipe 41 are opposite.Detection
Hole 211 is opened, and air ejector fan 114 rotates, and forms internal and external pressure difference, the gas in gas sample container 21 can be made to be discharged.
As shown in Figure 1, detection system further includes shell 5.
Base shell 123 is fixed on the upper end of shell 5.The top of conveyance conduit 22 is protruded into base shell 123, top with
The bottom end of pedestal sample channel 122 is connected, and the remainder of conveyance conduit 22 is set to vertically in shell 5.Gas detection module
It can also be set in shell 5.
The course of work of detection system are as follows:
Step 1: unmanned plane 11 acquires gas sample in flight.The top port of exhaust pipe 113 and gas sample
The top cover and bottom cover of container 21 are opened, and the elongation of connecting rod 116 separates middle part body 1112 and lower part body 1113, fan 114
Rotation, the gap that gas continues between middle part body 1112 and lower part body 1113 enter gas sample container 21, then upwards
It is discharged by exhaust pipe 113.After a period of time, the top cover and bottom cover of gas sample container 21 are closed, and gas sample collection is completed.
Exhaust pipe 113 and connecting rod 116 are also closed and shrink therewith.
Step 2: unmanned plane 11 returns, base shell 123 is flown into, and rest on pedestal 121.Unmanned plane bottom cover 117 is beaten
It opens, bracket 23 protrudes into unmanned plane sample channel 115, connect with gas sample container 21.Meanwhile charging module is that unmanned plane 11 fills
Electricity.
Step 3: bracket 23 drives gas sample container 21 to move down, until gas detection module.Laser generator 34 generates
Laser, and projected by laser irradiation device 31, after gas of the laser action in gas sample container 21, by laser pick-off list
Member 32 receives and is formed spectrum, and spectroanalysis instrument 33 receives spectrum, and analyzes and obtain the testing result of gas.The detection process
In, laser irradiation device 31 and laser pick-off unit 32 also with the rotation of detection ring 35 and move up and down.Meanwhile mass spectrograph probe 36
Gas sample container 21 is protruded into, the gas after being irradiated with a laser is received and detect, the data detected pass to measurement aerosol
Individual particle mass spectrograph 37, obtain the Mass Spectrometer Method result of gas.
Step 4: bracket 23 continues that gas sample container 21 is driven to move down, until air processing unit.Gas sample container 21
Detection hole open, air ejector fan 42 rotates, and the gas in gas sample container is discharged from exhaust pipe 41.
Step 5: bracket 23 drives the gas sample container 21 that empties to move up, return into unmanned plane 11 nobody
Machine sample channel 115.After gas sample container 21 is fixed, bracket 23 is disconnected, removes unmanned plane sample channel 115, nobody
Machine 11 prepares next collecting work.
Claims (9)
1. a kind of Atmospheric particulates are leaded and its isotope detection system, it is characterised in that:
Including gas collection module, gas detection module and sample supply unit；
The gas collection module includes unmanned plane and pedestal；
The unmanned plane includes body, several wings, exhaust pipe, unmanned plane sample channel and fan, and wing is arranged in body
On, drive unmanned plane during flying；
The exhaust pipe is arranged in the body, and top can communicate with the outside world；
The unmanned plane sample channel is vertically arranged in the body, and top is connected to the bottom end of the exhaust pipe, the wind
The top of the unmanned plane sample channel is arranged in fan；
The sample supply unit includes gas sample container, and gas sample container has openable top cover and bottom cover, gas
The side wall of sample container is transparent；
The gas sample container is removable installed in the unmanned plane sample channel, positioned at the lower section of the fan；
The top of the exhaust pipe, the top cover and bottom cover of the gas sample container, the unmanned plane sample channel be located at gas
Partially opening below body sample container, the fan rotation, gas continue to enter from the opening part of unmanned plane sample channel
Gas sample container, then be discharged upwardly through exhaust pipe, the top cover and bottom cover closure of gas sample container, gas collection is completed；
The pedestal includes pedestal, and pedestal has the pedestal sample channel being vertically arranged, and the unmanned plane rests on pedestal, nothing
Man-machine sample channel is connected with pedestal sample channel；
The sample supply unit further includes conveyance conduit and bracket；
The fixed lower section for being located at the pedestal of the conveyance conduit, the top of conveyance conduit is connected with the pedestal sample channel
It is logical；
The top of the bracket is detachably connected with the gas sample container, and bracket protrudes into unmanned plane sample channel, with gas
After sample container connection, gas sample container can be driven to pass through the pedestal sample channel, move into the conveyance conduit；
The conveyance conduit has detection section, and the tube wall for detecting section is transparent；
The gas detection module includes laser irradiation device, laser pick-off unit, spectroanalysis instrument, mass spectrograph probe and measurement
The individual particle mass spectrograph of aerosol；
Laser irradiation device and laser pick-off unit are respectively arranged on two sides opposite outside the detection section, the gas sample container
When being moved to detection section, laser irradiation device projects laser, after gas of the laser action in gas sample container, is connect by laser
Unit is received to receive and form spectrum；
The spectroanalysis instrument is connect with the laser pick-off unit, and spectroanalysis instrument receives the spectrum, and analyzes and obtain gas
The testing result of body；
The mass spectrograph probe is connect with the individual particle mass spectrograph of measurement aerosol；
The side wall of the gas sample container has the detection hole that can be opened and closed；
The openable detection hole of the mass spectrograph probe, protrudes into the gas sample container, receives and detect and shone by laser
Gas after penetrating, the data detected pass to the individual particle mass spectrograph of the measurement aerosol, obtain the Mass Spectrometer Method of gas
As a result.
2. Atmospheric particulates according to claim 1 are leaded and its isotope detection system, it is characterised in that:
Wherein, the gas detection module further includes detection ring；
For the detection ring set outside the detection section of the conveyance conduit, the laser irradiation device and laser pick-off unit are fixed
On detection ring, and it is located at position opposite on detection ring；
It is described to detect around its center rotating, it moves up and down simultaneously, fluctuation range is from the top of the gas sample container
Portion position to gas sample container bottom position.
3. Atmospheric particulates according to claim 1 are leaded and its isotope detection system, it is characterised in that:
Wherein, the laser pick-off unit includes prism, grating and spectrum receiving device, and prism is located at the conveyance conduit and light
Between grid；
The grating side that there are the grating several successively to connect；
The grating side is oppositely arranged with the prism, and grating can be rotated around the center line among several grating sides, is turned
When dynamic, several grating sides are successively opposite with prism, receive and screen the spectrum of prism decomposition；
The spectrum receiving device is set in the grating, the spectrum after receiving the screening of grating side, spectrum receiving device and institute
Spectroanalysis instrument connection is stated, the spectrum of collection is sent to spectroanalysis instrument.
4. Atmospheric particulates according to claim 1 are leaded and its isotope detection system, it is characterised in that:
Wherein, the bracket includes disk and the body of rod, and disk is fixed on the top of the body of rod；
The bottom cover of the disk and the gas sample container is detachably connected, and when connection, the body of rod is mobile, drives gas sample
This container moves up and down.
5. Atmospheric particulates according to claim 4 are leaded and its isotope detection system, it is characterised in that:
Wherein, the gas detection module further includes baffle；
The baffle is set to outside the apical position of the detection section, can move into detection section by detecting the opening of section tube wall；
The inner wall of the disk of the bracket and the gas sample container, which matches, to be agreed with；
When the gas sample container is located at detection section, baffle moves into detection section, keeps off in the upper end of gas sample container, gas sample
The bottom cover of this container is opened, and bracket moves up, the disk compression that the gas in gas sample container is shifted up.
6. Atmospheric particulates according to claim 1 are leaded and its isotope detection system, it is characterised in that:
Wherein, the body of the unmanned plane has the middle part body and lower part body that can be separated up and down, and lower part body is located at middle part
The lower section of body；
The unmanned plane sample channel is divided into upper channel section and lower channel section, is respectively arranged in middle part body and lower part body；
The gas sample container is removably disposed in the upper channel section；
The unmanned plane further includes several telescopic connecting rods, and the upper end of connecting rod is fixed in the middle part body, under
End is fixed in the lower part body；
Connecting rod elongation, middle part body are separated with lower part body, and gas can seam between middle part body and lower part body
Gap enters unmanned plane sample channel；
The bottom end of the unmanned plane is additionally provided with openable and closure unmanned plane bottom cover, when unmanned plane bottom cover is closed, unmanned plane
Bottom end is sealed, and when opening, gas sample container can be removed from unmanned plane sample channel.
7. Atmospheric particulates according to claim 1 are leaded and its isotope detection system, it is characterised in that:
Wherein, the pedestal further includes base shell, and the top surface of base shell has openable solar panel；
The pedestal is fixed to be located in the pedestal, and pedestal is charging module, is subjected to the solar panel and is collected conversion
Electric energy；
The top of the pedestal has the charging plug of annular, is circumferentially positioned at around pedestal sample channel top；
The bottom end of the unmanned plane has the charging slot of annular, is circumferentially positioned at around the gas sample passageway bottom end；
The charging slot matches with the charging plug, and charging plug can be inserted into charging slot, after insertion, is located at charging and inserts
The pedestal sample channel at head center, is connected to the unmanned plane sample channel at charging slot center；
The unmanned plane flies into the base shell, and when resting on the pedestal, the charging plug on pedestal top is inserted into nobody
In the charging slot of machine bottom end, charging module is unmanned plane charging.
8. Atmospheric particulates according to claim 1 are leaded and its isotope detection system, it is characterised in that:
It further include air processing unit；
The air processing unit includes exhaust pipe and scavenger fan；
One end of the exhaust pipe is connected with the bottom end side of the conveyance conduit, and the other end is in communication with the outside；
The exhaust pipe is L-shaped, and the scavenger fan is set to the turning in exhaust pipe；
When the gas sample container is displaced downwardly to the bottom end of conveyance conduit, the detection hole is opposite with exhaust pipe, and detection hole is beaten
It opens, air ejector fan rotation, the gas in gas sample container is discharged.
9. Atmospheric particulates according to claim 7 are leaded and its isotope detection system, it is characterised in that:
It further include shell；
The base shell is fixed on the upper end of the shell；
The top of the conveyance conduit is protruded into base shell, and top is connected with the bottom end of pedestal sample channel, conveyance conduit
Remainder be set in shell vertically.
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