CN210090252U - Atmosphere particulate matter contains lead and isotope detecting system thereof - Google Patents
Atmosphere particulate matter contains lead and isotope detecting system thereof Download PDFInfo
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- CN210090252U CN210090252U CN201920823837.4U CN201920823837U CN210090252U CN 210090252 U CN210090252 U CN 210090252U CN 201920823837 U CN201920823837 U CN 201920823837U CN 210090252 U CN210090252 U CN 210090252U
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- 239000013618 particulate matter Substances 0.000 title description 2
- 239000000523 sample Substances 0.000 claims abstract description 229
- 238000001514 detection method Methods 0.000 claims abstract description 113
- 238000001228 spectrum Methods 0.000 claims abstract description 49
- 239000002245 particle Substances 0.000 claims abstract description 13
- 239000000443 aerosol Substances 0.000 claims abstract description 12
- 238000001819 mass spectrum Methods 0.000 claims abstract description 5
- 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 description 8
- 238000012545 processing Methods 0.000 claims description 4
- 239000008277 atmospheric particulate matter Substances 0.000 abstract 1
- 238000000034 method Methods 0.000 description 10
- 238000012216 screening Methods 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 239000003344 environmental pollutant Substances 0.000 description 3
- 231100000719 pollutant Toxicity 0.000 description 3
- 238000012546 transfer Methods 0.000 description 3
- 238000004458 analytical method Methods 0.000 description 2
- 238000004949 mass spectrometry Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000002536 laser-induced breakdown spectroscopy Methods 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000011897 real-time detection Methods 0.000 description 1
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- 238000010183 spectrum analysis Methods 0.000 description 1
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Abstract
The utility model discloses a detection system for atmospheric particulate matter containing lead and isotope thereof, which comprises a gas collection module, a gas detection module and a sample conveying unit; the gas collection module comprises an unmanned aerial vehicle and a base; the unmanned aerial vehicle comprises an exhaust pipe, an unmanned aerial vehicle sample channel and a fan; the sample transport unit comprises a gas sample container; the base comprises a base body provided with a base body sample channel; the conveying pipeline is fixedly positioned below the seat body; the gas detection module comprises a laser irradiation device, a laser receiving unit, a spectrum analyzer, a mass spectrometer probe and a single particle mass spectrometer for measuring aerosol; when the gas sample container moves to the detection section, the laser irradiation device emits laser, and after the laser acts on the gas, the spectrum analyzer receives the spectrum and analyzes the spectrum to obtain the detection result of the gas; and the mass spectrometer probe extends into the gas sample container, and the detected data is transmitted to a single-particle mass spectrometer for measuring the aerosol to obtain a mass spectrum detection result of the gas. The utility model has the advantages of accuracy, rapidness and the like.
Description
Technical Field
The utility model belongs to the environmental detection field relates to a gaseous detecting system, especially relates to an atmospheric particulates contains lead and isotope detecting system thereof.
Background
At present, most of the detection of the lead and the isotope thereof in the atmospheric particulate needs manual collection or other collection methods, and long-time manual collection work may affect the human health of collection personnel and cause great harm. In addition, methods such as manual collection are not accurate enough when collecting a gas sample, and are easy to mix into original gas in a collection container or a conveying device, so that the error of a gas detection result is large, and a correct and accurate gas performance detection result cannot be obtained. In addition, the manual collection method and other methods cannot realize real-time detection of data, most of the methods need to collect a large number of samples and then uniformly send the samples to a detection device for monitoring, the whole process consumes a long time, real-time performance data of gas cannot be obtained, and due to the fact that the gas mobility is large, the delayed result is output, the follow-up applicability of the gas detection result is greatly reduced, for example, when pollution control work is carried out, the detection result of the gas before a certain time is low in reference, and the like.
SUMMERY OF THE UTILITY MODEL
The utility model provides an atmospheric particulates contain lead and isotope detecting system thereof to overcome prior art's defect.
In order to achieve the above object, the present invention provides a system for detecting lead and its isotopes in atmospheric particulates, which comprises a gas collection module, a gas detection module and a sample conveying unit; the gas collection module comprises an unmanned aerial vehicle and a base; the unmanned aerial vehicle comprises a machine body, a plurality of wings, an exhaust pipe, an unmanned aerial vehicle sample channel and a fan, wherein the wings are arranged on the machine body and drive the unmanned aerial vehicle to fly; the exhaust pipe is arranged in the machine body, and the top end of the exhaust pipe can be communicated with the outside; the unmanned aerial vehicle sample channel is vertically arranged in the machine body, the top end of the unmanned aerial vehicle sample channel is communicated with the bottom end of the exhaust pipe, and the fan is arranged at the top end of the unmanned aerial vehicle sample channel; the sample conveying unit comprises a gas sample container, the gas sample container is provided with an openable top cover and an openable bottom cover, and the side wall of the gas sample container is transparent; the gas sample container is detachably arranged in the unmanned aerial vehicle sample channel and is positioned below the fan; the top end of the exhaust pipe, the top cover and the bottom cover of the gas sample container, and the part of the unmanned aerial vehicle sample channel, which is positioned below the gas sample container, are opened, the fan rotates, gas continuously enters the gas sample container from the opened part of the unmanned aerial vehicle sample channel and is exhausted upwards through the exhaust pipe, the top cover and the bottom cover of the gas sample container are closed, and gas collection is completed; the base comprises a base body, the base body is provided with a vertically arranged base body sample channel, the unmanned aerial vehicle stops on the base body, and the unmanned aerial vehicle sample channel is communicated with the base body sample channel; the sample conveying unit also comprises a conveying pipeline and a bracket; the conveying pipeline is fixedly positioned below the seat body, and the top end of the conveying pipeline is communicated with the seat body sample channel; the top end of the bracket is detachably connected with the gas sample container, the bracket extends into the unmanned aerial vehicle sample channel, and after being connected with the gas sample container, the bracket can drive the gas sample container to pass through the base body sample channel and move into the conveying pipeline; the conveying pipeline is provided with a detection section, and the pipe wall of the detection section is transparent; the gas detection module comprises a laser irradiation device, a laser receiving unit, a spectrum analyzer, a mass spectrometer probe and a single particle mass spectrometer for measuring aerosol; the laser irradiation device and the laser receiving unit are respectively arranged at two opposite sides outside the detection section, when the gas sample container moves to the detection section, the laser irradiation device emits laser, and after the laser acts on the gas in the gas sample container, the laser is received by the laser receiving unit to form a spectrum; the spectrum analyzer is connected with the laser receiving unit, receives the spectrum and analyzes the spectrum to obtain a detection result of the gas; the mass spectrometer probe is connected with a single particle mass spectrometer for measuring aerosol; the side wall of the gas sample container is provided with a detection hole which can be opened and closed; the mass spectrometer probe can open a detection hole, extend into the gas sample container, receive and detect the gas irradiated by the laser, and transmit the detected data to the single-particle mass spectrometer for measuring the aerosol to obtain the mass spectrum detection result of the gas.
Further, the utility model provides an atmospheric particulates contains lead and isotope detecting system thereof can also have such characteristic: the gas detection module also comprises a detection ring; the detection ring is sleeved outside the detection section of the conveying pipeline, and the laser irradiation device and the laser receiving unit are fixed on the detection ring and are positioned at opposite positions on the detection ring; the detection ring rotates around its center while moving up and down, ranging from a top position of the gas sample container to a bottom position of the gas sample container.
Further, the utility model provides an atmospheric particulates contains lead and isotope detecting system thereof can also have such characteristic: the laser receiving unit comprises a prism, a grating and a spectrum receiving device, wherein the prism is positioned between the conveying pipeline and the grating; the grating is provided with a plurality of grating side surfaces which are connected in sequence; the side surfaces of the gratings are arranged opposite to the prism, the gratings can rotate around the central line in the middle of the side surfaces of the gratings, and when the gratings rotate, the side surfaces of the gratings are sequentially opposite to the prism to receive and screen the spectrum decomposed by the prism; the spectrum receiving device is arranged in the grating and used for receiving the spectrum screened from the side surface of the grating, and the spectrum receiving device is connected with the spectrum analyzer and used for transmitting the collected spectrum to the spectrum analyzer.
Further, the utility model provides an atmospheric particulates contains lead and isotope detecting system thereof can also have such characteristic: the bracket comprises a disc and a rod body, wherein the disc is fixed at the top end of the rod body; the disc is detachably connected with the bottom cover of the gas sample container, and when the disc is connected with the bottom cover of the gas sample container, the rod body moves to drive the gas sample container to move up and down.
Further, the utility model provides an atmospheric particulates contains lead and isotope detecting system thereof can also have such characteristic: the gas detection module also comprises a baffle plate; the baffle is arranged outside the top end of the detection section and can move into the detection section through the opening of the pipe wall of the detection section; the disc of the bracket is matched and matched with the inner wall of the gas sample container; when the gas sample container is positioned in the detection section, the baffle plate moves into the detection section and is blocked at the upper end of the gas sample container, the bottom cover of the gas sample container is opened, the bracket moves upwards, and gas in the gas sample container is compressed by the upwards moving disc.
Further, the utility model provides an atmospheric particulates contains lead and isotope detecting system thereof can also have such characteristic: the unmanned aerial vehicle comprises a body, a power supply and a control system, wherein the body of the unmanned aerial vehicle is provided with a middle body and a lower body which can be separated up and down, and the lower body is positioned below the middle body; the sample channel of the unmanned aerial vehicle is divided into an upper channel section and a lower channel section which are respectively arranged in the middle body and the lower body; the gas sample container is detachably arranged in the upper channel section; the unmanned aerial vehicle also comprises a plurality of telescopic connecting rods, the upper ends of the connecting rods are fixed in the middle body, and the lower ends of the connecting rods are fixed in the lower body; the connecting rod extends, the middle machine body is separated from the lower machine body, and gas can enter the unmanned aerial vehicle sample channel from a gap between the middle machine body and the lower machine body; unmanned aerial vehicle's bottom still is equipped with openable and closed unmanned aerial vehicle bottom, and when the unmanned aerial vehicle bottom was closed, unmanned aerial vehicle's bottom was sealed, and when opening, the gaseous sample container shifted out from the unmanned aerial vehicle sample passageway.
Further, the utility model provides an atmospheric particulates contains lead and isotope detecting system thereof can also have such characteristic: the base further comprises a base shell, and the top surface of the base shell is provided with an openable solar cell panel; the base body is fixedly positioned in the base and is a charging module which can receive the electric energy collected and converted by the solar cell panel; the top end of the seat body is provided with an annular charging plug which is arranged around the top end of the seat body sample channel; the bottom end of the unmanned aerial vehicle is provided with an annular charging slot which is arranged around the bottom end of the gas sample channel; the charging slot is matched with the charging plug, the charging plug can be inserted into the charging slot, and after the charging plug is inserted, the seat body sample channel positioned in the center of the charging plug is communicated with the unmanned aerial vehicle sample channel in the center of the charging slot; unmanned aerial vehicle flies into the base shell, when stopping on the pedestal, in the charging plug on pedestal top inserted the charging slot of unmanned aerial vehicle bottom, the module of charging charges for unmanned aerial vehicle.
Further, the utility model provides an atmospheric particulates contains lead and isotope detecting system thereof can also have such characteristic: also comprises a gas processing unit; the gas treatment unit comprises an exhaust pipeline and an exhaust fan; one end of the exhaust pipeline is communicated with the side surface of the bottom end of the conveying pipeline, and the other end of the exhaust pipeline is communicated with the outside; the exhaust duct is L-shaped, and the exhaust fan is arranged at a turning position in the exhaust duct; when the gas sample container moves downwards to the bottom end of the conveying pipeline, the detection hole is opposite to the exhaust pipeline, the detection hole is opened, the exhaust fan rotates, and the gas in the gas sample container is exhausted.
Further, the utility model provides an atmospheric particulates contains lead and isotope detecting system thereof can also have such characteristic: also includes a housing; the base shell is fixed at the upper end of the shell; the top end of the conveying pipeline extends into the base shell, the top end of the conveying pipeline is communicated with the bottom end of the base body sample channel, and the rest part of the conveying pipeline is vertically arranged in the shell.
The beneficial effects of the utility model reside in that: the utility model provides an atmospheric particulates contain lead and isotope detecting system thereof gathers the gas sample through unmanned aerial vehicle to through setting up gas sample container and storing alone and carrying the gas sample, the gas sample container is an solitary space, keeps apart the gas sample with external complete, when having avoided through the direct conveying gas of pipeline, the gas sample leads to the impure problem of sample with the gas mixture in the pipeline. Secondly, unmanned aerial vehicle gathers the back of accomplishing, and gaseous sample container is carried to gaseous detection module promptly and is detected, reduces the consumption of manpower and materials, can guarantee the "new freshness" of data simultaneously again. The gas detection module comprises a spectrum analysis module and a mass spectrometry analysis module, the two kinds of detection are combined to obtain spectrum and mass spectrometry two-dimensional information, accurate component information of atmospheric particles is obtained through analysis, and atmospheric pollutants are comprehensively and accurately detected. Wherein, still including detecting the ring, can drive the relative laser irradiation device in position and laser receiving unit and rotate and reciprocate to carry out abundant bombardment to the gas of situations such as various densities, and realize the accurate receipt to laser, the accuracy of many-sided improvement testing result. In addition, the four grating side surfaces are used for screening four isotopes of lead, and the pertinence is strong. The utility model discloses can realize automatic, convenient, quick, detect atmospheric pollutants more comprehensively, provide real-time data for the pollutant is administered and is supported.
Drawings
FIG. 1 is a schematic structural diagram of a pedestal and an upper housing of a detection system for detecting lead and isotopes thereof in atmospheric particulates;
FIG. 2 is a schematic structural diagram of an unmanned aerial vehicle with an atmospheric particulate lead and isotope detection system thereof;
FIG. 3 is a schematic diagram of a gas sample container configuration;
fig. 4 is a schematic structural view of the unmanned aerial vehicle in a state where the middle body and the lower body are separated;
FIG. 5 is a schematic front view of a gas detection module;
FIG. 6 is a schematic top view of a gas detection module;
FIG. 7 is a schematic view of the gas detection module in different positions of movement;
fig. 8 is a schematic structural view of a unit for gas treatment.
Detailed Description
The following describes embodiments of the present invention with reference to the drawings.
The utility model provides an atmospheric particulates contain lead and isotope detecting system thereof, including gas collection module, gaseous detection module, sample conveying unit and gas processing unit.
As shown in fig. 1 and 2, the gas collection module includes a drone 11 and a base 12.
The exhaust pipe 113 is disposed in the body 111, and has a top end capable of communicating with the outside to exhaust gas. Preferably, as shown in fig. 2, the exhaust pipe 113 is vertically disposed in the upper portion 1111 of the body 111, and has a cover 1131 at a top end thereof, which can be closed by lifting, so that when the cover 1131 is lifted, the top end of the exhaust pipe 113 is communicated with the outside, and when the cover 1131 is lowered, the top end of the exhaust pipe 113 is closed. The upper portion 1111 of the housing 111 is a battery or other integrated portion.
Unmanned aerial vehicle sample passageway 115 is vertical to be set up in organism 111, top and the intercommunication of 113 bottoms of blast pipe. Fan 114 is disposed at the top of drone sample channel 115.
The sample transport unit comprises a gas sample container 21. As shown in fig. 3, the gas sample container 21 has a cylindrical shape with openable top and bottom caps. The sidewall of the gas sample container is transparent.
When unmanned aerial vehicle 11 flies to gather the sample, the top of exhaust pipe 113, the top cap and the bottom of gas sample container 21 and the unmanned aerial vehicle sample passageway 115 be located the part below gas sample container 21 and open, and fan 114 rotates, and gaseous opening part from unmanned aerial vehicle sample passageway 115 that continues gets into gas sample container 21, upwards discharges through exhaust pipe 113 again. The process may be performed by first evacuating the air sample container 21 of the original gas and then introducing a newly collected sample. The top and bottom caps of gas sample container 21 are then closed and gas collection is complete. At this time, the sample channel 115 and the exhaust pipe 113 of the drone are also closed, and the drone 11 can continue to fly smoothly.
When a gas sample is taken, the drone sample channel 115 located below the gas sample container 21 is opened. Specifically, the body 111 of the unmanned aerial vehicle 11 has a middle body 1112 and a lower body 1113 that are separable from each other. The lower body 1113 is located below the middle body 1112. The middle housing 1112 is fixedly positioned below the upper portion 1111 of the housing 111.
Unmanned aerial vehicle sample passageway 115 is divided into passageway section and lower passageway section, locates respectively in middle part organism 1112 and the lower part organism 1113. A gas sample container 21 is detachably arranged in the upper channel section.
The drone 11 also comprises a number of telescopic connecting rods 116. The upper end of the connecting rod 116 is fixed in the middle body 1112, and the lower end is fixed in the lower body 1113.
As shown in fig. 4, when a gas sample is collected, the connecting rod 116 is extended, the middle body 1112 is separated from the lower body 1113, and as the fan 114 rotates, gas can enter the drone sample channel 115 from the gap between the middle body 1112 and the lower body 1113 and then enter the gas sample container 21, so as to collect the gas. Compared with introducing gas from other positions (for example, the bottom end of the unmanned aerial vehicle sample channel), the unmanned aerial vehicle can fly more stably in a separated mode.
Preferably, unmanned aerial vehicle 11's bottom still is equipped with openable and closed unmanned aerial vehicle bottom 117, and when unmanned aerial vehicle bottom 117 closed, unmanned aerial vehicle 11's bottom was sealed, and is sealed can make unmanned aerial vehicle 11 flight process more stable. When open, the gas sample container 21 may be removed from the drone sample channel 115.
The base 12 includes a seat 121. The holder body 121 has a holder body sample passage 122 vertically disposed and penetrating up and down in the center. The drone 11 may rest on the seat 121, and when resting, the drone sample channel 115 is in communication with the seat sample channel 122.
Further, the base 12 also includes a base housing 123. The top surface of the base housing 123 has an openable solar cell panel. The base body 121 is fixedly located in the base 12, and the base body 121 is a charging module and can receive electric energy collected and converted by the solar cell panel. The top end of the housing 121 has an annular charging plug disposed around the top end of the housing sample passage 122.
The bottom end of the drone has an annular charging socket 118 disposed around the bottom end of the gas sample channel 115.
The sample transport unit further comprises a transport conduit 22 and a rack 23.
The delivery pipe 22 is fixedly positioned below the seat body 121. The top end of the transfer tube 22 communicates with the holder sample passage 122.
The top end of the holder 23 is detachably connected to the gas sample container 21. The cross-sections of the unmanned aerial vehicle sample passage 115, the seat body sample passage 122 and the conveying pipeline 22 are all circular, and the inner diameters are all equal, and are connected in a one-to-one opposite manner to form an integral passage. The bracket 23 extends into the sample channel 115 of the drone and, after being connected to the gas sample container 21, can drive the gas sample container 21 to pass through the seat sample channel 122 and move into the transfer duct 22.
As shown in fig. 5, the conveying pipe 22 has a detection section 221. The wall of the detection section 221 is transparent.
The gas detection module includes a laser generating device 34, a laser irradiation device 31, a laser receiving unit 32, and a spectrum analyzer 33. The laser irradiation device 31 and the laser receiving unit 32 are respectively provided outside the detection section 221 on opposite sides. The laser generator 34 is connected to the laser irradiation device 31. When the gas sample container 21 moves to the detection section 221, the laser generator 34 generates laser light, the laser light is emitted from the laser irradiation device 31, and the laser light is received by the laser receiving unit 32 to form a spectrum after acting on the gas in the gas sample container 21. The spectrum analyzer 33 is connected to the laser receiving unit 32, and the spectrum analyzer 33 receives the spectrum and analyzes the detection result of the gas.
Further, as shown in fig. 5-7, the gas detection module further includes a detection ring 35.
The detection ring 35 is fitted over the detection section 221 of the delivery pipe 22, with the delivery pipe 22 in its central position. The laser irradiation device 31 and the laser receiving unit 32 are fixed on the detection ring 35 and located at opposite positions on the detection ring 35. The detection ring 35 rotates around its center while moving up and down, ranging from the top position of the gas sample container 21 to the bottom position of the gas sample container 21.
Specifically, the laser receiving unit 32 includes a prism 321, a grating 322, and a spectrum acceptance device 323. The prism 321 is located between the delivery conduit 22 and the grating 322.
The grating 322 has four grating sides 3221 that meet in sequence. The four grating side surfaces 3221 are gratings for screening four different isotopes of lead, respectively, and one grating side surface 3221 corresponds to screening of one isotope of lead.
The grating side 3221 is disposed opposite to the prism 321, the grating 322 can rotate around a center line between the four grating sides 3221, and when the grating side 3221 rotates, the four grating sides 3221 sequentially face to the prism 321 to receive and screen the spectrum decomposed by the prism 321.
The spectrum receiving device 323 is provided in the grating 322, receives the spectrum screened by the grating side 3221, and the spectrum receiving device 323 is connected to the spectrum analyzer 33, and transfers the collected spectrum to the spectrum analyzer 33.
The spectrum analyzer 33 analyzes the specific content of lead and its isotope. Mass numbers (204, 206, 207, 208) of lead and its isotopes and other relevant data, particularly their LIBS signatures, are stored in the spectrum analyzer 33, and more intuitive and accurate analysis is possible by comparing the measured data with the stored data.
In this embodiment, the grating 322 may also have other numbers and types of grating sides for screening different isotopes of other elements, and may be configured according to the detection object.
The gas detection module also includes a mass spectrometer probe 36 and a single particle mass spectrometer 37 to measure the aerosol. The mass spectrometer probe 36 is connected to a single particle mass spectrometer 37 that measures the aerosol.
As shown in fig. 3, the side wall of the gas sample container 21 has a detection hole 211 that can be opened and closed.
The mass spectrometer probe 36 can open the detection hole 211, extend into the gas sample container 21, receive and detect the gas irradiated by the laser, and transmit the detected data to the single-particle mass spectrometer 37 for measuring the aerosol to obtain the mass spectrum detection result of the gas, i.e. the types of all elements in the gas. After the test is complete, the mass spectrometer probe 36 is removed from the test well 211 and the test well 211 is sealed closed.
Further, the holder 23 includes a disc 231 and a rod body 232. The disc 231 is fixed to the top end of the rod body 232. The disc 231 is detachably connected with the bottom cover of the gas sample container 21, and when the disc is connected with the bottom cover, the rod body 232 moves to drive the gas sample container 21 to move up and down. The rod 232 can be driven to move by an electric device such as a motor.
The gas detection module also includes a baffle 38. The baffle 38 is disposed outside the top end of the detecting section 221 and can move into the detecting section 221 through the opening of the wall of the detecting section 221.
The disc 231 of the holder 23 fits in a mating fit with the inner wall of the gas sample container 21.
When gas sample container 21 is positioned in detection section 221, baffle 38 moves into detection section 221 and stops at the upper end of gas sample container 21. At this time, the bottom cover of the gas sample container 21 is opened, the holder 23 is moved upward, the gas in the gas sample container 21 is compressed by the disk 231 moved upward, and the gas concentration is increased for detection.
Preferably, the outer surface of the bottom cover of the gas sample container 21 is coated with a magnetic material, and the disc 231 is made of an electromagnet, which is activated by an electric power device and an electric wire in the rod 232. When the gas sample container 21 is activated, the bottom cover of the gas sample container 21 is connected to the disc 231 of the holder 23 in an attracting manner, i.e., the gas sample container 21 is fixedly connected to the disc 231, and the holder 23 can drive the gas sample container 21 to move up and down. When the power is off, the gas sample container 21 is not connected to the holder 23, and the holder 23 is removed. Remove away and indicate, when support 23 carried into unmanned aerial vehicle sample passageway 115, when preparing to collect gas with gas sample container 21, after gas sample container 21 fixed fan 114 below, support 23 separated with it, moved out unmanned aerial vehicle 11 downwards, and unmanned aerial vehicle 11 can fly and gather the sample.
As shown in fig. 8, the gas treatment unit includes an exhaust duct 41 and an exhaust fan 42.
One end of the exhaust duct 41 communicates with the bottom end side of the delivery duct 22, and the other end communicates with the outside. The exhaust duct 41 is L-shaped, and the exhaust fan 42 is provided at a turn in the exhaust duct 41.
When the gas sample container 21 moves down to the bottom end of the delivery pipe 22, the detection hole 211 is opposite to the exhaust pipe 41. The detection hole 211 is opened, and the exhaust fan 114 is rotated to generate an internal-external pressure difference, so that the gas in the gas sample container 21 can be exhausted.
As shown in fig. 1, the detection system further comprises a housing 5.
The base housing 123 is fixed to the upper end of the housing 5. The top end of the conveying pipe 22 extends into the base housing 123, the top end is communicated with the bottom end of the seat body sample passage 122, and the rest part of the conveying pipe 22 is vertically arranged in the housing 5. A gas detection module may also be provided within the housing 5.
The working process of the detection system is as follows:
step one, the unmanned aerial vehicle 11 collects a gas sample during flight. The top port of the exhaust tube 113 and the top and bottom caps of the gas sample container 21 are opened, the connecting rod 116 is extended to separate the middle body 1112 from the lower body 1113, the fan 114 is rotated, and the gas continuously enters the gas sample container 21 from the gap between the middle body 1112 and the lower body 1113 and is exhausted upward through the exhaust tube 113. After a period of time, the top and bottom caps of the gas sample container 21 are closed and gas sample collection is complete. The exhaust pipe 113 and the connecting rod 116 are also closed and contracted accordingly.
And step two, the unmanned aerial vehicle 11 returns to fly into the base shell 123 and stop on the seat body 121. The drone bottom cover 117 is opened and the cradle 23 extends into the drone sample tunnel 115, connecting with the gas sample container 21. Simultaneously, the module of charging charges for unmanned aerial vehicle 11.
And step three, the bracket 23 drives the gas sample container 21 to move downwards to the gas detection module. The laser generator 34 generates laser light, emits the laser light through the laser irradiation device 31, and the laser light is applied to the gas in the gas sample container 21, and then received by the laser receiving unit 32 to form a spectrum, and the spectrum analyzer 33 receives the spectrum and analyzes the result of detection of the gas. In this detection process, the laser irradiation device 31 and the laser receiving unit 32 also rotate and move up and down with the detection ring 35. Meanwhile, the mass spectrometer probe 36 extends into the gas sample container 21 to receive and detect the gas irradiated by the laser, and the detected data is transmitted to the single particle mass spectrometer 37 for measuring the aerosol to obtain a mass spectrum detection result of the gas.
And step four, the bracket 23 continues to drive the gas sample container 21 to move downwards to the gas processing unit. The detection hole of the gas sample container 21 is opened, the exhaust fan 42 is rotated, and the gas in the gas sample container is exhausted through the exhaust duct 41.
And step five, the bracket 23 drives the emptied gas sample container 21 to move upwards and return to the unmanned aerial vehicle sample channel 115 of the unmanned aerial vehicle 11. After the gas sample container 21 is fixed, the bracket 23 is separated from the gas sample container, the unmanned aerial vehicle sample channel 115 is moved out, and the unmanned aerial vehicle 11 is ready for next collection.
Claims (9)
1. The utility model provides an atmospheric particulates contain lead and isotope detecting system thereof which characterized in that:
the device comprises a gas collection module, a gas detection module and a sample conveying unit;
the gas collection module comprises an unmanned aerial vehicle and a base;
the unmanned aerial vehicle comprises a machine body, a plurality of wings, an exhaust pipe, an unmanned aerial vehicle sample channel and a fan, wherein the wings are arranged on the machine body and drive the unmanned aerial vehicle to fly;
the exhaust pipe is arranged in the machine body, and the top end of the exhaust pipe can be communicated with the outside;
the unmanned aerial vehicle sample channel is vertically arranged in the machine body, the top end of the unmanned aerial vehicle sample channel is communicated with the bottom end of the exhaust pipe, and the fan is arranged at the top end of the unmanned aerial vehicle sample channel;
the sample transport unit comprises a gas sample container, the gas sample container is provided with an openable top cover and an openable bottom cover, and the side wall of the gas sample container is transparent;
the gas sample container is detachably arranged in the unmanned aerial vehicle sample channel and is positioned below the fan;
the top end of the exhaust pipe, the top cover and the bottom cover of the gas sample container and the part, located below the gas sample container, of the unmanned aerial vehicle sample channel are opened, the fan rotates, gas continuously enters the gas sample container from the opened part of the unmanned aerial vehicle sample channel and is exhausted upwards through the exhaust pipe, the top cover and the bottom cover of the gas sample container are closed, and gas collection is completed;
the base comprises a base body, the base body is provided with a vertically arranged base body sample channel, the unmanned aerial vehicle stops on the base body, and the unmanned aerial vehicle sample channel is communicated with the base body sample channel;
the sample conveying unit further comprises a conveying pipeline and a bracket;
the conveying pipeline is fixedly positioned below the seat body, and the top end of the conveying pipeline is communicated with the seat body sample channel;
the top end of the bracket is detachably connected with the gas sample container, the bracket extends into the unmanned aerial vehicle sample channel, and after being connected with the gas sample container, the bracket can drive the gas sample container to pass through the base body sample channel and move into the conveying pipeline;
the conveying pipeline is provided with a detection section, and the pipe wall of the detection section is transparent;
the gas detection module comprises a laser irradiation device, a laser receiving unit, a spectrum analyzer, a mass spectrometer probe and a single particle mass spectrometer for measuring aerosol;
the laser irradiation device and the laser receiving unit are respectively arranged on two opposite sides outside the detection section, when the gas sample container moves to the detection section, the laser irradiation device emits laser, and after the laser acts on the gas in the gas sample container, the laser is received by the laser receiving unit to form a spectrum;
the spectrum analyzer is connected with the laser receiving unit, receives the spectrum and analyzes the spectrum to obtain a detection result of the gas;
the mass spectrometer probe is connected with a single particle mass spectrometer for measuring aerosol;
the side wall of the gas sample container is provided with a detection hole which can be opened and closed;
the mass spectrometer probe can open the detection hole, extend into the gas sample container, receive and detect the gas irradiated by the laser, and transmit the detected data to the single-particle mass spectrometer for measuring the aerosol to obtain a mass spectrum detection result of the gas.
2. The atmospheric particulate lead-containing and isotope detection system of claim 1, wherein:
wherein the gas detection module further comprises a detection ring;
the detection ring is sleeved outside the detection section of the conveying pipeline, and the laser irradiation device and the laser receiving unit are fixed on the detection ring and are positioned at opposite positions on the detection ring;
the detection ring rotates around its center while moving up and down, the range of up and down movement being from the top position of the gas sample container to the bottom position of the gas sample container.
3. The atmospheric particulate lead-containing and isotope detection system of claim 1, wherein:
the laser receiving unit comprises a prism, a grating and a spectrum receiving device, and the prism is positioned between the conveying pipeline and the grating;
the grating is provided with a plurality of grating side surfaces which are connected in sequence;
the side surfaces of the grating are arranged opposite to the prism, the grating can rotate around the central line in the middle of the side surfaces of the plurality of gratings, and when the grating rotates, the side surfaces of the plurality of gratings are sequentially opposite to the prism to receive and screen the spectrum decomposed by the prism;
the spectrum receiving device is arranged in the grating and used for receiving the spectrum screened from the side surface of the grating, and the spectrum receiving device is connected with the spectrum analyzer and used for transmitting the collected spectrum to the spectrum analyzer.
4. The atmospheric particulate lead-containing and isotope detection system of claim 1, wherein:
the support comprises a disc and a rod body, and the disc is fixed at the top end of the rod body;
the disc is detachably connected with the bottom cover of the gas sample container, and when the disc is connected with the bottom cover of the gas sample container, the rod body moves to drive the gas sample container to move up and down.
5. The atmospheric particulate lead-containing and isotope detection system of claim 4, wherein:
wherein the gas detection module further comprises a baffle;
the baffle is arranged outside the top end of the detection section and can move into the detection section through the opening of the pipe wall of the detection section;
the disc of the bracket is matched and matched with the inner wall of the gas sample container;
when the gas sample container is positioned in the detection section, the baffle plate moves into the detection section and is blocked at the upper end of the gas sample container, the bottom cover of the gas sample container is opened, the bracket moves upwards, and gas in the gas sample container is compressed by the upwards-moving disc.
6. The atmospheric particulate lead-containing and isotope detection system of claim 1, wherein:
the unmanned aerial vehicle comprises an unmanned aerial vehicle body, a power supply and a power supply, wherein the unmanned aerial vehicle body is provided with a middle body and a lower body which can be separated up and down, and the lower body is positioned below the middle body;
the sample channel of the unmanned aerial vehicle is divided into an upper channel section and a lower channel section which are respectively arranged in the middle body and the lower body;
the gas sample container is detachably disposed within the upper channel section;
the unmanned aerial vehicle also comprises a plurality of telescopic connecting rods, the upper ends of the connecting rods are fixed in the middle body, and the lower ends of the connecting rods are fixed in the lower body;
the connecting rod extends, the middle machine body is separated from the lower machine body, and gas can enter the unmanned aerial vehicle sample channel from a gap between the middle machine body and the lower machine body;
unmanned aerial vehicle's bottom still is equipped with openable and closed unmanned aerial vehicle bottom, and when the unmanned aerial vehicle bottom was closed, unmanned aerial vehicle's bottom was sealed, and when opening, the gaseous sample container can follow and shift out in the unmanned aerial vehicle sample passageway.
7. The atmospheric particulate lead-containing and isotope detection system of claim 1, wherein:
wherein the base further comprises a base housing, the top surface of the base housing having an openable solar panel;
the base body is fixedly positioned in the base and is a charging module which can receive the electric energy collected and converted by the solar cell panel;
the top end of the seat body is provided with an annular charging plug which is arranged around the top end of the seat body sample channel in a surrounding manner;
the bottom end of the unmanned aerial vehicle is provided with an annular charging slot which is arranged around the bottom end of the gas sample channel;
the charging plug is inserted into the charging slot, and after the charging plug is inserted into the charging slot, the seat body sample channel positioned in the center of the charging plug is communicated with the unmanned aerial vehicle sample channel in the center of the charging slot;
unmanned aerial vehicle flies into the base shell stops when on the pedestal, in the charging plug of pedestal top inserted the charging slot of unmanned aerial vehicle bottom, the module of charging charges for unmanned aerial vehicle.
8. The atmospheric particulate lead-containing and isotope detection system of claim 1, wherein:
also comprises a gas processing unit;
the gas treatment unit comprises an exhaust pipeline and an exhaust fan;
one end of the exhaust pipeline is communicated with the side face of the bottom end of the conveying pipeline, and the other end of the exhaust pipeline is communicated with the outside;
the exhaust pipeline is L-shaped, and the exhaust fan is arranged at a turning position in the exhaust pipeline;
when the gas sample container moves downwards to the bottom end of the conveying pipeline, the detection hole is opposite to the exhaust pipeline, the detection hole is opened, the exhaust fan rotates, and gas in the gas sample container is exhausted.
9. The atmospheric particulate lead-containing and isotope detection system thereof of claim 7, wherein:
also includes a housing;
the base shell is fixed at the upper end of the shell;
the top end of the conveying pipeline extends into the base shell, the top end of the conveying pipeline is communicated with the bottom end of the base body sample channel, and the rest part of the conveying pipeline is vertically arranged in the shell.
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| CN201920823837.4U CN210090252U (en) | 2019-06-03 | 2019-06-03 | Atmosphere particulate matter contains lead and isotope detecting system thereof |
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| CN201920823837.4U CN210090252U (en) | 2019-06-03 | 2019-06-03 | Atmosphere particulate matter contains lead and isotope detecting system thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110068524A (en) * | 2019-06-03 | 2019-07-30 | 南京信息工程大学 | Atmospheric particulates are leaded and its isotope detection system |
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| CN110068524A (en) * | 2019-06-03 | 2019-07-30 | 南京信息工程大学 | Atmospheric particulates are leaded and its isotope detection system |
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