CN213022750U - Multi-level haze weather particulate matter monitoring and sampling device - Google Patents
Multi-level haze weather particulate matter monitoring and sampling device Download PDFInfo
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- CN213022750U CN213022750U CN202021894580.0U CN202021894580U CN213022750U CN 213022750 U CN213022750 U CN 213022750U CN 202021894580 U CN202021894580 U CN 202021894580U CN 213022750 U CN213022750 U CN 213022750U
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- 239000013618 particulate matter Substances 0.000 title claims abstract description 179
- 238000005070 sampling Methods 0.000 title claims abstract description 150
- 238000012544 monitoring process Methods 0.000 title claims abstract description 109
- 239000002245 particle Substances 0.000 claims abstract description 77
- 239000000428 dust Substances 0.000 claims abstract description 39
- 230000007246 mechanism Effects 0.000 claims abstract description 17
- 238000001514 detection method Methods 0.000 claims description 55
- 230000005540 biological transmission Effects 0.000 claims description 29
- 239000012528 membrane Substances 0.000 claims description 11
- 238000001816 cooling Methods 0.000 claims description 4
- 238000005265 energy consumption Methods 0.000 abstract description 5
- 230000007613 environmental effect Effects 0.000 description 10
- 230000008859 change Effects 0.000 description 4
- 238000012546 transfer Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 230000003044 adaptive effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
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Abstract
The utility model discloses a many grades of haze weather particulate matter monitoring and sampling device, including control panel, air basic parameter acquisition unit, dust particle collecting head, dust particle diameter and figure distribution monitoring unit, particulate matter sampling subassembly and many grades of haze weather particulate matter monitoring mechanism, many grades of haze weather particulate matter monitoring mechanism include a plurality of haze weather particulate matter monitoring units, and haze weather particulate matter monitoring unit includes particulate matter off-line acquisition unit and particulate matter on-line measuring unit. The utility model discloses an air basic parameter acquisition unit judges whether to carry out haze weather particulate matter monitoring and sampling, and corresponding carries out haze weather particulate matter monitoring and sampling, and the energy consumption is little, and is efficient, and through dust particle diameter and figure distribution monitoring unit dust particle diameter, figure and distribution in the monitoring air, the off-line sampling and the on-line monitoring that realize the many grain grades of particulate matter of haze weather through many grain grades of haze weather particulate matter monitoring mechanism go on simultaneously, and the integrated level is high.
Description
Technical Field
The utility model belongs to the technical field of atmospheric particulates monitoring, concretely relates to monitoring of many grades of haze weather particulate matters and sampling device.
Background
With the aggravation of environmental pollution and the increasing attention of people to environmental quality and atmospheric quality, the monitoring of atmospheric quality becomes more and more important, and the atmospheric monitoring can not only provide various pollution degree indexes, but also more importantly prompt the pollution source of people and how to strengthen the control of the pollution source and the environmental protection. Therefore, monitoring of the atmospheric environment is particularly important. At present, when atmospheric particulates with different particle sizes are subjected to online monitoring or offline sampling in haze weather, various monitoring and sampling devices need to be carried. During daily monitoring, atmospheric meteorological elements need to be monitored synchronously, but no atmospheric comprehensive monitoring equipment exists in the current market, the sampling requirement cannot be met, and a lot of inconvenience is brought to monitoring personnel.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that not enough among the above-mentioned prior art is directed at, a many grades of haze weather particulate matter monitoring and sampling device is provided, its novel in design is reasonable, judge whether carry out haze weather particulate matter monitoring and sampling through air basic parameter acquisition unit, targeted haze weather particulate matter monitoring and sampling of carrying on, the energy consumption is little, high efficiency, through dust particle diameter and the interior dust particle diameter of figure distribution monitoring unit monitoring air, figure and distribution, the off-line sampling and the on-line monitoring that realize many grades of particulate matter of haze weather through many grades of haze weather particulate matter monitoring mechanism go on simultaneously, the integrated level is high, and convenient to popularize and use.
In order to solve the technical problem, the utility model discloses a technical scheme is: the utility model provides a many grades of haze weather particulate matter monitoring and sampling device which characterized in that: the device comprises a control panel, a dust particle size and number distribution monitoring unit, a multi-level haze weather particulate matter monitoring mechanism, an air basic parameter acquisition unit, a dust particle acquisition head and a particulate matter sampling assembly, wherein the control panel, the dust particle size and number distribution monitoring unit and the multi-level haze weather particulate matter monitoring mechanism are arranged in a cabinet body;
the dust particle size and number distribution monitoring unit comprises a measuring box, a dust particle counter arranged in the measuring box and an air pump arranged outside the measuring box, wherein an air flow meter is arranged on a pipeline communicated with the measuring box, and a dust particle collecting head penetrates through the cabinet body and is communicated with the measuring box;
the monitoring mechanism for the haze weather particulate matters in the multi-grade comprises a plurality of haze weather particulate matter monitoring units, the particulate matter sampling assembly comprises a plurality of particulate matter sampling units, the haze weather particulate matter monitoring units and the particulate matter sampling units are equal in number and correspond to one another, and each haze weather particulate matter monitoring unit comprises a vacuum pump, a pipeline shunt, a particulate matter offline acquisition unit and a particulate matter online detection unit which are communicated with the pipeline shunt;
the online particulate matter detection unit comprises a first air inlet pipe communicated with the pipeline diverter, a first electromagnetic valve, a first gas flow meter and a particulate matter detection box, wherein the first electromagnetic valve, the first gas flow meter and the particulate matter detection box are all installed on the first air inlet pipe, the offline particulate matter acquisition unit comprises a second air inlet pipe communicated with the pipeline diverter, a second electromagnetic valve and a second gas flow meter are all installed on the second air inlet pipe, the particulate matter sampling unit comprises a first particulate matter sampling head communicated with the first air inlet pipe and a second particulate matter sampling head communicated with the second air inlet pipe, and a particulate matter filter membrane is arranged between one end, extending out of the cabinet body, of the second air inlet pipe and the second particulate matter.
Foretell many grades of haze weather particulate matter monitoring and sampling device, its characterized in that: the air basic parameter acquisition unit comprises a visibility sensor, a wind speed and direction sensor and a temperature and humidity sensor which are all connected with the control panel.
Foretell many grades of haze weather particulate matter monitoring and sampling device, its characterized in that: the cabinet body is provided with a push-pull plate for placing the control panel and pushing the control panel to enter and exit the cabinet body.
Foretell many grades of haze weather particulate matter monitoring and sampling device, its characterized in that: the cabinet body bottom is provided with a plurality of flexible landing legs, and the universal wheel is installed to flexible landing leg bottom.
Foretell many grades of haze weather particulate matter monitoring and sampling device, its characterized in that: the vacuum pump is connected with the frequency converter, and the vacuum pump and the frequency converter are controlled by the control panel.
Foretell many grades of haze weather particulate matter monitoring and sampling device, its characterized in that: one end of the first air inlet pipe, which extends out of the cabinet body, is fixedly connected with the cabinet body through a first air inlet pipe mounting part, and a first sampling head transmission pipe of the first particulate matter sampling head is fixedly connected with the first air inlet pipe mounting part through a first transmission pipe mounting part;
one end of the second air inlet pipe extending out of the cabinet body is fixedly connected with the cabinet body through a second air inlet pipe mounting piece, a second sampling head transmission pipe of a second particulate matter sampling head is fixedly connected with the second air inlet pipe mounting piece through a second transmission pipe mounting piece, and a particulate matter filter membrane is arranged between the second transmission pipe mounting piece and the second air inlet pipe mounting piece.
Foretell many grades of haze weather particulate matter monitoring and sampling device, its characterized in that: and the first sampling head transmission pipe and the second sampling head transmission pipe are sleeved with cooling sleeves.
Foretell many grades of haze weather particulate matter monitoring and sampling device, its characterized in that: particle detection case is including installing the detection box in first intake pipe, and the detection passageway and the first intake pipe intercommunication in the detection box, one side of detecting the passageway is provided with the pivot, the opposite side of detecting the passageway is provided with the paper feed motor, detect the passageway including last detection passageway and lower detection passageway, go up and be provided with the buffer layer on the detection passageway, be provided with down the buffer layer on the lower detection passageway, the one end of filter paper is fixed on the paper feed motor, the other end of filter paper passes the clearance between buffer layer and the lower buffer layer and convolutes in the pivot, upward is provided with the particulate matter detector who is used for surveying particulate matter mass concentration on the filter paper in the detection passageway.
Foretell many grades of haze weather particulate matter monitoring and sampling device, its characterized in that: the control panel is a tablet computer.
Foretell many grades of haze weather particulate matter monitoring and sampling device, its characterized in that: the model size of first particulate matter sampling head and second particulate matter sampling head is the same among the particulate matter sampling unit, and the model diverse of the particulate matter sampling head among a plurality of particulate matter sampling units.
Compared with the prior art, the utility model has the following advantage:
1. the utility model discloses an air basic parameter acquisition unit judges whether to carry out haze weather particulate matter monitoring and sampling, and what have pertinence carries out haze weather particulate matter monitoring and sampling, and the energy consumption is little, and is efficient, convenient to popularize and use.
2. The utility model discloses a set up a plurality of haze weather particulate matter monitoring unit and a plurality of particulate matter sampling unit that the structure is the same, the atmospheric particulates of different particle diameters can be gathered simultaneously to a plurality of particulate matter sampling units to according to the characteristic of different particle diameter particulate matters, carry out the off-line sampling and the on-line monitoring of haze weather particulate matter simultaneously, distribute different samplers, and then can realize better collection effect, the integrated level is high, excellent in use effect.
3. The utility model discloses particulate matter sampling head among the particulate matter sampling unit can dismantle the change, when satisfying different size grades haze weather particulate matter monitoring and sampling, portable.
4. The utility model discloses a dust particle diameter and figure distribution monitoring unit monitor dust particle diameter, figure and distribution in the air, and then provide the foundation for selecting particulate matter sampling head and vacuum pump operating power.
To sum up, the utility model relates to a novelty is reasonable, judges whether carry out haze weather particulate matter monitoring and sampling through air basic parameter acquisition unit, and corresponding carries out haze weather particulate matter monitoring and sampling, and the energy consumption is little, and is efficient, distributes monitoring unit through dust particle diameter and figure and dust particle diameter in the monitoring air, figure and distribution, and off-line sampling and the on-line monitoring that realize the many grain grades of particulate matter of haze weather through many grain grades of haze weather particulate matter monitoring mechanism go on simultaneously, and the integrated level is high, convenient to popularize and use.
The technical solution of the present invention is further described in detail by the accompanying drawings and examples.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is the schematic structural diagram of the particle detection box of the present invention.
Description of reference numerals:
1, a cabinet body; 2-frequency converter; 3-a vacuum pump;
4-pipeline flow divider; 5-a first solenoid valve; 6-a second solenoid valve;
7-a first gas flow meter; 8-a second gas flow meter; 9-particle detection box;
9-1-detection box body; 9-2 — upper detection channel; 9-3-lower detection channel;
9-4-upper buffer layer; 9-5-lower buffer layer; 9-6-filter paper;
9-7-a rotating shaft; 9-8-paper feeding motor; 9-a particulate matter detector;
10-a particulate matter filter membrane; 11 — a first inlet pipe; 12 — a second inlet pipe;
13 — a first inlet duct mounting; 14 — a second intake pipe mounting;
15 — a first transfer tube mount; 16 — a second transfer tube mount;
17-first sampling head transfer tube; 18-second sampling head transfer tube;
19-a first particulate sampling head; 20-a second particulate matter sampling head;
21-an air pump; 22-an air flow meter; 23-measuring box;
24-a dust particle counter; 25-a dust particle pick-up head; 26-visibility sensor;
27-wind speed and direction sensor; 28-temperature and humidity sensor; 29-a push-pull plate;
30-a control panel; 31-telescopic legs; 32-universal wheel.
Detailed Description
As shown in fig. 1 and fig. 2, the utility model comprises a control panel 30, a dust particle size and number distribution monitoring unit and a multi-level haze weather particulate matter monitoring mechanism which are arranged in a cabinet body 1, and an air basic parameter acquisition unit, a dust particle acquisition head 25 matched with the dust particle size and number distribution monitoring unit and a particulate matter sampling component matched with the multi-level haze weather particulate matter monitoring mechanism which are arranged outside the cabinet body 1;
the dust particle size and number distribution monitoring unit comprises a measuring box 23, a dust particle counter 24 arranged in the measuring box 23 and an air pump 21 arranged outside the measuring box 23, wherein an air flow meter 22 is arranged on a pipeline for communicating the air pump 21 with the measuring box 23, and a dust particle collecting head 25 penetrates through the cabinet body 1 and is communicated with the measuring box 23;
the monitoring mechanism for the particles in the multi-grade haze weather comprises a plurality of haze weather particle monitoring units, the particle sampling assembly comprises a plurality of particle sampling units, the haze weather particle monitoring units and the particle sampling units are equal in number and correspond to one another, and each haze weather particle monitoring unit comprises a vacuum pump 3, a pipeline flow divider 4, a particle off-line acquisition unit and a particle on-line detection unit which are communicated with the pipeline flow divider 4;
the online particulate matter detection unit includes the first intake pipe 11 that communicates with pipeline shunt 4 and all installs first solenoid valve 5, first gas flowmeter 7 and particulate matter detection case 9 in first intake pipe 11, the offline particulate matter collection unit includes the second intake pipe 12 that communicates with pipeline shunt 4 and all installs second solenoid valve 6 and second gas flowmeter 8 on second intake pipe 12, the particulate matter sampling unit includes the first particulate matter sampling head 19 that communicates with first intake pipe 11 and the second particulate matter sampling head 20 that communicates with second intake pipe 12, and second intake pipe 12 stretches out and is provided with particulate matter 10 between the one end of the cabinet body 1 and the second particulate matter sampling head 20.
The air basic parameter acquisition unit is used for judging whether to monitor and sample the haze weather particulate matters or not, so that the haze weather particulate matters are monitored and sampled in a targeted manner, the energy consumption is low, and the efficiency is high; by arranging the plurality of haze weather particulate matter monitoring units and the plurality of particulate matter sampling units which are identical in structure, the plurality of particulate matter sampling units can simultaneously collect atmospheric particulate matters with different particle sizes, off-line sampling and on-line monitoring of the haze weather particulate matters are simultaneously performed according to the characteristics of the particulate matters with different particle sizes, different samplers are distributed, a better collection effect can be realized, and the integration level is high; the particulate matter sampling head in the particulate matter sampling unit can be disassembled and replaced, so that the monitoring and sampling of particulate matters in haze weather of different grades are met, and the particulate matter sampling unit is convenient to carry; the particle size, the number and the distribution of dust particles in the air are monitored by the dust particle size and number distribution monitoring unit, and a basis is further provided for selecting the working power of the particle sampling head and the vacuum pump.
In actual use, the process of starting a haze weather particulate matter monitoring unit is: the vacuum pump 3 is started, the first particulate matter sampling head 19 and the second particulate matter sampling head 20 simultaneously collect haze weather particulate matters, the haze weather particulate matters collected by the first particulate matter sampling head 19 enter the first air inlet pipe 11 through the first sampling head transmission pipe 17, and the particulate matter detection box 9 performs online detection on the haze weather particulate matters entering the first air inlet pipe 11 to obtain the mass concentration of the haze weather particulate matters; before the haze weather particulate matter that second particulate matter sampling head 20 gathered gets into second intake pipe 12 through second sampling head transmission pipe 18, through the filtration collection of particulate matter filter membrane 10, particulate matter filter membrane 10 sets up between the one end that stretches out cabinet body 1 in second intake pipe 12 and second particulate matter sampling head 20, be located outside the cabinet body 1, be convenient for change, the haze weather particulate matter of particulate matter filter membrane 10 sampling supplies follow-up detection, realize through many grades of haze weather particulate matter monitoring mechanism that the off-line sampling and the on-line monitoring of the many grades of particulate matter of haze weather go on simultaneously, the integrated level is high.
In this embodiment, the first sampling head transmission tube 17 and the second sampling head transmission tube 18 are both sleeved with cooling sleeves.
What need to explain is, often there is volatile material in the haze weather particulate matter, carries out the cold district through cooling jacket to first sampling head transmission pipe 17 and second sampling head transmission pipe 18, guarantees the degree of accuracy of haze weather particulate matter on-line measuring, guarantees the reliability that haze weather particulate matter off-line was gathered simultaneously.
In this embodiment, the air basic parameter collecting unit includes a visibility sensor 26, a wind speed and direction sensor 27 and a temperature and humidity sensor 28, which are all connected to a control board 30.
It should be noted that, according to the haze weather identification specification, the environmental temperature and humidity threshold value and the visibility threshold value are determined, when the environmental temperature and humidity collected by the temperature and humidity sensor 28 reaches the environmental temperature and humidity threshold value and the environmental visibility collected by the visibility sensor 26 reaches the visibility threshold value, it is determined that the current environment is the haze weather, at this moment, monitoring and sampling of particles in the haze weather are performed, and the wind speed and direction sensor 27 determines the diffusion distribution trend of the particles in the haze weather.
In this embodiment, the cabinet 1 is provided with a push-pull plate 29 for placing the control plate 30 and for pushing and pulling the control plate 30 into and out of the cabinet 1.
In this embodiment, the bottom of the cabinet body 1 is provided with a plurality of telescopic legs 31, and universal wheels 32 are installed at the bottoms of the telescopic legs 31.
In this embodiment, the vacuum pump 3 is connected to the frequency converter 2, and both the vacuum pump 3 and the frequency converter 2 are controlled by the control board 30.
In this embodiment, one end of the first air inlet pipe 11 extending out of the cabinet body 1 is fixedly connected with the cabinet body 1 through a first air inlet pipe mounting part 13, and a first sampling head transmission pipe 17 of a first particulate matter sampling head 19 is fixedly connected with the first air inlet pipe mounting part 13 through a first transmission pipe mounting part 15;
one end of the second air inlet pipe 12 extending out of the cabinet body 1 is fixedly connected with the cabinet body 1 through a second air inlet pipe mounting piece 14, a second sampling head transmission pipe 18 of a second particulate matter sampling head 20 is fixedly connected with the second air inlet pipe mounting piece 14 through a second transmission pipe mounting piece 16, and the particulate matter filter membrane 10 is arranged between the second transmission pipe mounting piece 16 and the second air inlet pipe mounting piece 14.
It should be noted that the first air inlet pipe mounting part 13, the first transmission pipe mounting part 15, the second air inlet pipe mounting part 14 and the second transmission pipe mounting part 16 all use adaptive flanges.
In the embodiment, the particle detection box 9 comprises a detection box body 9-1 arranged on a first air inlet pipe 11, a detection channel in the detection box body 9-1 is communicated with the first air inlet pipe 11, a rotating shaft 9-7 is arranged on one side of the detection channel, a paper feeding motor 9-8 is arranged on the other side of the detection channel, the detection channel comprises an upper detection channel 9-2 and a lower detection channel 9-3, an upper buffer layer 9-4 is arranged on the upper detection channel 9-2, a lower buffer layer 9-5 is arranged on the lower detection channel 9-3, one end of a filter paper 9-6 is fixed on the paper feeding motor 9-8, the other end of the filter paper 9-6 penetrates through a gap between the upper buffer layer 9-4 and the lower buffer layer 9-5 and is wound on the rotating shaft 9-7, a particle detector 9-9 for detecting the mass concentration of particles on the filter paper 9-6 is arranged in the upper detection channel 9-2.
It should be noted that the upper buffer layer 9-4 and the lower buffer layer 9-5 are preferably silica gel buffer layers, and the particle detector 9-9 is a beta radiation dust detector.
In this embodiment, the control board 30 is a tablet computer.
In this embodiment, the first particle sampling head 19 and the second particle sampling head 20 in the particle sampling unit have the same model size, and the model numbers of the particle sampling heads in the plurality of particle sampling units are different from each other.
It should be noted that the first particle sampling head 19 and the second particle sampling head 20 in one particle sampling unit have the same model size, so that the online detection and offline acquisition standards of particle-level particles are consistent, and the reference comparison of data is facilitated; the purpose of the model diverse of the particulate matter sampling head among a plurality of particulate matter sampling units is to gather multiple size fraction particulate matter, the preferred three haze weather particulate matter monitoring unit that uses as an example, first particulate matter sampling head 19 and second particulate matter sampling head 20 all adopt PM1 particulate matter sampling head in the first haze weather particulate matter monitoring unit, first particulate matter sampling head 19 and second particulate matter sampling head 20 all adopt PM2.5 particulate matter sampling head in the second haze weather particulate matter monitoring unit, first particulate matter sampling head 19 and second particulate matter sampling head 20 all adopt PM10 particulate matter sampling head in the third haze weather particulate matter monitoring unit, three kinds of size fraction particulate matter of collection monitoring.
When the utility model is used, the visibility sensor 26, the wind speed and direction sensor 27 and the temperature and humidity sensor 28 are used for collecting air basic parameters, when the environmental temperature and humidity collected by the temperature and humidity sensor 28 reach the environmental temperature and humidity threshold value and the environmental visibility collected by the visibility sensor 26 reaches the visibility threshold value, the current environment is judged to be haze weather, at the moment, haze weather particulate matter monitoring and sampling are carried out, a dust particle size and number distribution monitoring unit is started, the dust particle collecting head 25 collects environmental dust particles and enters the measuring box 23, the dust particle counter 24 detects the dust particle size and number distribution, a basis is provided for selecting the particulate matter sampling head and the working power of the vacuum pump, a matched particulate matter sampling unit is installed, the corresponding frequency converter 2 and the vacuum pump 3 are started, and the first particulate matter sampling head 19 and the second particulate matter sampling head 20 simultaneously collect haze weather, haze weather particulate matters collected by the first particulate matter sampling head 19 enter the first air inlet pipe 11 through the first sampling head transmission pipe 17, and the particulate matter detection box 9 performs online detection on the haze weather particulate matters entering the first air inlet pipe 11 to obtain the mass concentration of the haze weather particulate matters; before the haze weather particulate matters collected by the second particulate matter sampling head 20 enter the second air inlet pipe 12 through the second sampling head transmission pipe 18, the haze weather particulate matters are collected by filtering through the particulate matter filter membrane 10, the haze weather particulate matters sampled by the particulate matter filter membrane 10 are used for subsequent detection, the offline sampling and the online monitoring of the haze weather particulate matters are simultaneously carried out through the multi-particle-level haze weather particulate matter monitoring mechanism, and the integration level is high.
The above, only be the utility model discloses a preferred embodiment, it is not right the utility model discloses do any restriction, all according to the utility model discloses the technical entity all still belongs to any simple modification, change and the equivalent structure change of doing above embodiment the utility model discloses technical scheme's within the scope of protection.
Claims (10)
1. The utility model provides a many grades of haze weather particulate matter monitoring and sampling device which characterized in that: the device comprises a control panel (30), a dust particle size and number distribution monitoring unit and a multi-level haze weather particulate matter monitoring mechanism which are arranged in a cabinet body (1), an air basic parameter acquisition unit, a dust particle acquisition head (25) matched with the dust particle size and number distribution monitoring unit and a particulate matter sampling assembly matched with the multi-level haze weather particulate matter monitoring mechanism, wherein the air basic parameter acquisition unit, the dust particle size and number distribution monitoring unit and the multi-level haze weather particulate matter monitoring mechanism are arranged outside the cabinet body (1);
the dust particle size and number distribution monitoring unit comprises a measuring box (23), a dust particle counter (24) arranged in the measuring box (23) and an air pump (21) arranged outside the measuring box (23), wherein an air flow meter (22) is installed on a pipeline for communicating the air pump (21) with the measuring box (23), and a dust particle collecting head (25) penetrates through the cabinet body (1) and is communicated with the measuring box (23);
the monitoring mechanism for the haze weather particulate matters in the multi-grade comprises a plurality of haze weather particulate matter monitoring units, the particulate matter sampling assembly comprises a plurality of particulate matter sampling units, the haze weather particulate matter monitoring units and the particulate matter sampling units are equal in number and correspond to one another, and each haze weather particulate matter monitoring unit comprises a vacuum pump (3), a pipeline flow divider (4), a particulate matter offline acquisition unit and a particulate matter online detection unit which are communicated with the pipeline flow divider (4);
the online particulate matter detection unit comprises a first air inlet pipe (11) communicated with a pipeline flow divider (4) and a first electromagnetic valve (5), a first gas flow meter (7) and a particulate matter detection box (9) which are all installed on the first air inlet pipe (11), the offline particulate matter collection unit comprises a second air inlet pipe (12) communicated with the pipeline flow divider (4) and a second electromagnetic valve (6) and a second gas flow meter (8) which are all installed on the second air inlet pipe (12), the particulate matter collection unit comprises a first particulate matter sampling head (19) communicated with the first air inlet pipe (11) and a second particulate matter sampling head (20) communicated with the second air inlet pipe (12), and a particulate matter filter membrane (10) is arranged between one end, extending out of the cabinet body (1), of the second air inlet pipe (12) and the second particulate matter sampling head (20).
2. The multi-level haze weather particulate matter monitoring and sampling device of claim 1, characterized in that: the air basic parameter acquisition unit comprises a visibility sensor (26), a wind speed and direction sensor (27) and a temperature and humidity sensor (28) which are all connected with a control panel (30).
3. The multi-level haze weather particulate matter monitoring and sampling device of claim 1, characterized in that: the cabinet body (1) is provided with a push-pull plate (29) which is used for placing the control plate (30) and for pushing and pulling the control plate (30) to enter and exit the cabinet body (1).
4. The multi-level haze weather particulate matter monitoring and sampling device of claim 1, characterized in that: the cabinet body (1) bottom is provided with a plurality of flexible landing legs (31), and universal wheel (32) are installed to flexible landing leg (31) bottom.
5. The multi-level haze weather particulate matter monitoring and sampling device of claim 1, characterized in that: the vacuum pump (3) is connected with the frequency converter (2), and the vacuum pump (3) and the frequency converter (2) are controlled by the control panel (30).
6. The multi-level haze weather particulate matter monitoring and sampling device of claim 1, characterized in that: one end, extending out of the cabinet body (1), of the first air inlet pipe (11) is fixedly connected with the cabinet body (1) through a first air inlet pipe mounting piece (13), and a first sampling head transmission pipe (17) of a first particulate matter sampling head (19) is fixedly connected with the first air inlet pipe mounting piece (13) through a first transmission pipe mounting piece (15);
one end, extending out of the cabinet body (1), of the second air inlet pipe (12) is fixedly connected with the cabinet body (1) through a second air inlet pipe mounting piece (14), a second sampling head transmission pipe (18) of a second particulate matter sampling head (20) is fixedly connected with the second air inlet pipe mounting piece (14) through a second transmission pipe mounting piece (16), and a particulate matter filter membrane (10) is arranged between the second transmission pipe mounting piece (16) and the second air inlet pipe mounting piece (14).
7. The multi-level haze weather particulate matter monitoring and sampling device of claim 6, wherein: and cooling sleeves are sleeved outside the first sampling head transmission pipe (17) and the second sampling head transmission pipe (18).
8. The multi-level haze weather particulate matter monitoring and sampling device of claim 1, characterized in that: the particle detection box (9) comprises a detection box body (9-1) arranged on a first air inlet pipe (11), a detection channel in the detection box body (9-1) is communicated with the first air inlet pipe (11), a rotating shaft (9-7) is arranged on one side of the detection channel, a paper feeding motor (9-8) is arranged on the other side of the detection channel, the detection channel comprises an upper detection channel (9-2) and a lower detection channel (9-3), an upper buffer layer (9-4) is arranged on the upper detection channel (9-2), a lower buffer layer (9-5) is arranged on the lower detection channel (9-3), one end of filter paper (9-6) is fixed on the paper feeding motor (9-8), and the other end of the filter paper (9-6) penetrates through a gap between the upper buffer layer (9-4) and the lower buffer layer (9-5) and is wound on the rotating shaft (9-7), a particle detector (9-9) for detecting the mass concentration of the particles on the filter paper (9-6) is arranged in the upper detection channel (9-2).
9. The multi-level haze weather particulate matter monitoring and sampling device of claim 1, characterized in that: the control panel (30) is a tablet personal computer.
10. The multi-level haze weather particulate matter monitoring and sampling device of claim 1, characterized in that: the model size of first particulate matter sampling head (19) and second particulate matter sampling head (20) is the same among the particulate matter sampling unit, and the model of the particulate matter sampling head among a plurality of particulate matter sampling units is diverse.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202021894580.0U CN213022750U (en) | 2020-09-02 | 2020-09-02 | Multi-level haze weather particulate matter monitoring and sampling device |
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| CN202021894580.0U CN213022750U (en) | 2020-09-02 | 2020-09-02 | Multi-level haze weather particulate matter monitoring and sampling device |
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| CN213022750U true CN213022750U (en) | 2021-04-20 |
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| CN202021894580.0U Expired - Fee Related CN213022750U (en) | 2020-09-02 | 2020-09-02 | Multi-level haze weather particulate matter monitoring and sampling device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113865949A (en) * | 2021-09-23 | 2021-12-31 | 陕西师范大学 | Device and method for sampling breath exposure of human body in mask type haze pollution weather |
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2020
- 2020-09-02 CN CN202021894580.0U patent/CN213022750U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113865949A (en) * | 2021-09-23 | 2021-12-31 | 陕西师范大学 | Device and method for sampling breath exposure of human body in mask type haze pollution weather |
| CN113865949B (en) * | 2021-09-23 | 2023-07-04 | 陕西师范大学 | Mask type device and method for sampling human breath exposure in haze polluted weather |
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Granted publication date: 20210420 |