CN204705533U - PM2.5 gasoloid enrichment method system and PM2.5 online enrichment method mouth and nose exposure system - Google Patents
PM2.5 gasoloid enrichment method system and PM2.5 online enrichment method mouth and nose exposure system Download PDFInfo
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Abstract
The utility model discloses a kind of PM2.5 gasoloid enrichment method system and PM2.5 online enrichment method mouth and nose exposure system.PM2.5 gasoloid enrichment method system comprises: impact cutter; Damping device, receives the air-flow from impacting cutter, mixes with the water smoke that damping device produces to make the air-flow from impacting cutter; At least one refrigerating plant, each refrigerating plant receives the mixed airflow from damping device, is more than or equal to 2.5 μm to make the equivalent aerodynamic diameter of at least part of particle in mixed airflow rise to; With at least one concentrating and separating device, airflow diversion from this refrigerating plant is become the first air-flow and the second air-flow by each concentrating and separating device, and make aerodynamics equivalent diameter in the air-flow from this refrigerating plant rise to all particulates being more than or equal to 2.5 μm be partly or entirely positioned at the first air-flow; And drying device, be configured to receive and dry the first air-flow from least one concentrating and separating device.
Description
Technical field
The utility model belongs to the concentration technical field of the small particle improved in air-flow, particularly relates to a kind of PM2.5 gasoloid enrichment method system and PM2.5 online enrichment method mouth and nose exposure system.
Background technology
Along with the raising of socioeconomic development and people's living standard, the waste gas of factory and motor vehicle emission gets more and more, and easily makes air muddy, and the visual field is fuzzy and cause visibility deterioration, thus occurs haze weather.Haze is primarily of sulphuric dioxide, oxides of nitrogen and pellet these three compositions, and they and fog combine, and allows sky become gloomily gloomy instantaneously.Sulphuric dioxide, oxides of nitrogen are gaseous contaminant, and pellet is only the arch-criminal increasing the weight of haze weather and pollute.The english abbreviation of particle is PM, and that Beijing is monitored is PM2.5, and namely equivalent aerodynamic diameter is less than or equal to the contaminant particle of 2.5 microns.This particle itself is a kind of pollutant, is again the carrier of the noxious material such as heavy metal, palycyclic aromatic, if these particles of absorption of human body, the injury that will cause human body is unknown, and the potential danger therefore studying contaminant particle in air is imperative.
In order to study the harmfulness of contaminant particle, usually making animal absorb these contaminant particles, observing the reflection of animal and animal being carried out to the harmfulness of the particle dissecting etc. to understand in haze.But these particles relative concentration is in an atmosphere lower, if be directly used in zoopery, the cycle of needs is long, and effect is obvious not.How effectively gather the PM2.5 particulate in air, and the PM2.5 particulate in air is applied to animal mouth and nose or systemic exposure experiment is technical matters urgently to be resolved hurrily.
Utility model content
The purpose of this utility model aims to provide a kind of PM2.5 gasoloid enrichment method system and PM2.5 online enrichment method mouth and nose exposure system, the particle of aerodynamics equivalent diameter below 2.5 μm in air-flow can be gathered, namely PM2.5 particulate can be gathered, and the concentration of PM2.5 particulate can be improved, to carry out enrichment method to the small particle in air.
For this reason, the utility model provides a kind of PM2.5 gasoloid enrichment method system.This PM2.5 gasoloid enrichment method system can comprise:
Impact cutter, be configured to receive air-flow, and remove the particle that in described air-flow, aerodynamics equivalent diameter is greater than 2.5 μm at least in part;
Damping device, is configured to receive the air-flow from described impact cutter, mixes to make the air-flow from described impact cutter with the water smoke that described damping device produces;
At least one refrigerating plant, each described refrigerating plant is configured to the mixed airflow that receives from described damping device and reduces the temperature of described mixed airflow, is more than or equal to 2.5 μm to make the equivalent aerodynamic diameter of at least part of particle in described mixed airflow rise to; With
At least one concentrating and separating device, each described concentrating and separating device is configured to receive the air-flow from a described refrigerating plant, and the airflow diversion from this refrigerating plant is become the first air-flow and the second air-flow, and make in the air-flow from this refrigerating plant, equivalent aerodynamic diameter rises to all particulates being more than or equal to 2.5 μm is partly or entirely arranged in described first air-flow; And
Drying device, is configured to receive and dry described first air-flow from least one concentrating and separating device described.
Further, described PM2.5 gasoloid enrichment method system also comprises: the first air pump, is configured to from described drying device, aspirate described first air-flow; With the second air pump, be configured to aspirate described second air-flow from least one concentrating and separating device described.
Further, described PM2.5 gasoloid enrichment method system also comprises: first flow controller, is arranged on the air inlet pipeline of described first air pump; With second amount controller, be arranged on the air inlet pipeline of described second air pump.
Further, described PM2.5 gasoloid enrichment method system also comprises: heating arrangement, and the air-flow be configured to flowing into described damping device by described impact cutter heats.
Further, each described refrigerating plant comprises outer tube and pipe in extending in described outer tube, the two ends of described interior pipe are communicated with a described concentrating and separating device with described damping device respectively, and the passage limited between described outer tube wall and described outer wall of inner tube is for passing the flowing of cold medium.
Further, described damping device is supersonic atomizing humidifier, comprising: water tank, and it has top cover, and each described refrigerating plant is installed on described top cover vertically, and the interior pipe of each described refrigerating plant is communicated with the internal cavities of described water tank; With ultrasonic atomizatio module, be arranged on the diapire of water tank, be configured to the aquatic products unboiled water mist made in described water tank.
Further, each described concentrating and separating device comprises one or more Virtual cropping device, each described Virtual cropping utensil has airflow inlet, the first air stream outlet and the second air stream outlet, and in described multiple Virtual cropping device, the first air stream outlet of each described Virtual cropping device is communicated with the airflow inlet of the described Virtual cropping device being adjacent to its downstream.
Further, each described Virtual cropping device comprises:
Housing, is limited with accommodation cavity in it, it offers described second air stream outlet and freeing port;
First jet, stretches into described accommodation cavity, and its one end is described airflow inlet, and the gas channel that limits of at least part of pipeline section of described first jet reduces gradually along the direction of air flow direction in it; With
Second nozzle, it is positioned at described accommodation cavity at least partly, and with described first jet coaxial spaced arrange, one end away from described first jet of described second nozzle is described first air stream outlet, and the gas channel that limits of at least part of pipeline section of described second nozzle expands gradually along the direction of air flow direction in it.
Further, be limited with for the first passage by described first air-flow with for the second channel by dry gas in described drying device, to make described dry gas, drying carried out to described first air-flow; And
Described PM2.5 gasoloid enrichment method system also comprises the 3rd flow controller, is configured to the flow regulating described dry gas, has predetermined humidity value to make described first air-flow flowed out from described PM2.5 gasoloid enrichment method system.
The utility model additionally provides a kind of PM2.5 online enrichment method mouth and nose exposure system, it comprises any one gasoloid enrichment method system above-mentioned and mouth and nose exposing device, described mouth and nose exposing device has exposure chamber, and described exposure chamber is configured to receive dried first air-flow of drying device through described gasoloid enrichment method system.
PM2.5 gasoloid enrichment method system of the present utility model and PM2.5 online enrichment method mouth and nose exposure system are because can make the PM2.5 particulate in air grow up, with effectively by the PM2.5 particulate in air with fraction burbling out, significantly improve the concentration of PM2.5 particulate.And, PM2.5 gasoloid enrichment method system of the present utility model these can be grown up after small particle carry out drying, thus the small particle after making these grow up restores to the original state, reach the domain size distribution identical with in air so that research air in PM2.5 particulate to the extent of injury of human body.
Accompanying drawing explanation
Hereinafter describe specific embodiments more of the present utility model with reference to the accompanying drawings by way of example, and not by way of limitation in detail.Reference numeral identical in accompanying drawing denotes same or similar parts or part.It should be appreciated by those skilled in the art that these accompanying drawings may not be drawn in proportion.In accompanying drawing:
Fig. 1 is the schematic diagram of the PM2.5 gasoloid enrichment method system according to the utility model embodiment;
Fig. 2 is the schematic partial structurtes cut-open view of the PM2.5 gasoloid enrichment method system according to the utility model embodiment;
Fig. 3 is the schematic partial enlarged view at the place of A shown in Fig. 2;
Fig. 4 is the schematic diagram of the PM2.5 online enrichment method mouth and nose exposure system according to the utility model embodiment;
Fig. 5 is the schematic cross sectional views of the exposure chamber of PM2.5 online enrichment method mouth and nose exposure system according to the utility model embodiment.
Embodiment
For making the object of the utility model embodiment, technical scheme and advantage clearly, below in conjunction with accompanying drawing, specific embodiment is described in detail.
Fig. 1 is the schematic diagram of the PM2.5 gasoloid enrichment method system according to the utility model embodiment, and as shown in Figure 1, the utility model embodiment provides a kind of PM2.5 gasoloid enrichment method system.This PM2.5 gasoloid enrichment method system comprises impacts cutter 100, damping device 200, at least one refrigerating plant 300 and at least one concentrating and separating device 400.
Particularly, impact cutter 100 and be configured to receive air-flow, and remove the particle that in air-flow, aerodynamics equivalent diameter is greater than 2.5 μm at least in part.Damping device 200 is configured to receive the air-flow from impacting cutter 100, to make the air-flow from impacting cutter 100 mix with the water smoke that damping device 200 produces, air-flow can be made to heat up simultaneously.Each refrigerating plant 300 is configured to the mixed airflow that receives from damping device 200 and reduces the temperature of described mixed airflow, is more than or equal to 2.5 μm to make the equivalent aerodynamic diameter of at least part of particle in mixed airflow rise to.That is damping device 200 and refrigerating plant 300 can make the particle tuberculosis in mixed airflow grow up.
Each concentrating and separating device 400 is configured to receive the air-flow from a refrigerating plant 300, and the airflow diversion from this refrigerating plant 300 is become the first air-flow and the second air-flow.Especially, each concentrating and separating device 400 can make in the air-flow from the refrigerating plant 300 be connected, equivalent aerodynamic diameter rises to all particulates being more than or equal to 2.5 μm is partly or entirely arranged in described first air-flow.Here the part said refers to major part, is about more than or equal to whole 85%.It should be noted that in described first air-flow that also may comprise a small amount of, equivalent aerodynamic diameter rises to the particle being less than 2.5 μm here.Each concentrating and separating device 400 also makes in the air-flow from the refrigerating plant 300 be connected simultaneously, equivalent aerodynamic diameter increase be less than all particulates of 2.5 μm be partly or entirely arranged in described second air-flow.Namely each concentrating and separating device 400 plays the vital role being separated equivalent aerodynamic diameter in whole PM2.5 gasoloid enrichment method system.
Further, the particle of growing up to make tuberculosis recovers original equivalent aerodynamic diameter, PM2.5 gasoloid enrichment method system in the utility model embodiment also can comprise drying device 500, is configured to receive and dry the first air-flow from least one concentrating and separating device 400 described.In certain embodiments, be limited with for the first passage by described first air-flow with for the second channel by dry gas in this drying device, to make described dry gas, drying carried out to described first air-flow.Such as, this drying device 500 can comprise the drying tube and Nafion barrier film that are limited with dry place.Nafion barrier film also can be called as permeable hermetically sealable film, is configured to dry place to be divided into for by the first passage of the first air-flow and the second channel that is used for by dry gas.Dry gas stream and the reverse flow in described dry place of the first air-flow, to improve drying efficiency.Further, this drying device 500 also can comprise vacuum pump, and the outlet of its import and second channel flows in second channel to make dry gas.In order to improve drying efficiency further, this drying device also can comprise heating arrangement, is arranged on the upstream of the second channel of drying tube.Be unlikely to over-drying to prevent the first air-flow flowing out drying device, the PM2.5 gasoloid enrichment method system of the utility model embodiment also can comprise the 3rd flow controller, be configured to the flow regulating dry gas, to make the first air-flow flowed out from PM2.5 gasoloid enrichment method system, there is predetermined humidity value.In some alternate embodiment, drying device can comprise drying tube and be positioned at the drying agent of drying tube, and drying agent can be made tubular structure, flows through in the center through hole of tubular drying agent to make the first air-flow.
In embodiments more of the present utility model, PM2.5 gasoloid enrichment method system also can comprise two air pumps, as the first air pump 610 and the second air pump 620.The import of the first air pump 610 and the outlet for flowing out the first air-flow of drying device 500, to aspirate the first air-flow from drying device 500.The import of the second air pump 620 and the outlet for flowing out the second air-flow of concentrating and separating device 400, to aspirate the second air-flow from least one concentrating and separating device 400.First air pump 610 and the second air pump 620 provide power for whole system.Further, on the air inlet pipeline of the first air pump 610 and the second air pump 620, first flow controller 810 and second amount controller 820 can be set, to control the flow of the first air-flow and the second air-flow respectively.
The PM2.5 gasoloid enrichment method system of the utility model embodiment is mainly used in carries out enrichment method to the PM2.5 particulate in air, to be applied in zoopery by the particle after enrichment method, observes the extent of injury of the PM2.5 particulate in air.Particularly, the course of work of this PM2.5 gasoloid enrichment method system is as follows:
Open the first air pump 610 and the second air pump 620, protoatmosphere is entered at a high speed with the flow of 1000L/min to be impacted in cutter 100, particle equivalent aerodynamic diameter being greater than 2.5 μm after being acted on by impact cutter 100 is removed or filtering, only leave the particle that equivalent aerodynamic diameter is less than or equal to 2.5 μm, i.e. PM2.5 particulate, PM2.5 particulate fully absorbs moisture in damping device 200, then after refrigerating plant 300 is cooled, particle tuberculosis is grown up, now the equivalent aerodynamic diameter of most of PM2.5 particulate can increase between 3 to 4 microns.Through the separation of concentrating and separating device 400, the large quantity of air hardly containing particulate can be discharged with the flow of 980L/min, discharge by the second air-flow; Low discharge air containing PM2.5 particulate, i.e. the first air-flow, dried after entering drying device 500 with the flow of 20L/min, the PM2.5 particulate reduction after growing up is original size.Due to after concentrating and separating device 400, the air flow rate containing almost whole PM2.5 particulate in air reduces, even if the concentration of PM2.5 particulate increases, reaches the effect that enrichment is concentrated, so that animal mouth and nose expose experiment, systemic exposure experiment etc.
Fig. 2 is the schematic partial structurtes cut-open view of the PM2.5 gasoloid enrichment method system according to the utility model embodiment; Fig. 3 is the schematic partial enlarged view at the place of A shown in Fig. 2.As shown in Figures 2 and 3, the impact cutter 100 in the utility model embodiment can comprise impact cutter shell 110, have the resistance worm gauze cover 120 of gauze, first jet plate 130, first entrapment plate 140, second nozzle plate 150 and the second entrapment plate 160.Impact cutter 100 shell and there is top stream import and bottom airflow outlet.Resistance worm gauze cover 120 is installed on the top stream import impacting cutter 100 shell, protoatmosphere can be entered by the gauze of resistance worm gauze cover and impact in cutter 100 shell, and resistance worm gauze cover can prevent insect and the material such as blade of grass, willow catkins flying in the air are inhaled in impact cutter 100 shell and block gas circuit.First jet plate 130, first entrapment plate 140, second nozzle plate 150 and the second entrapment plate 160 all have one or more aperture, and are arranged to parallel interval successively from the top down in impact cutter shell 110.
In the utility model embodiment, the course of work of impacting cutter 100 can be: protoatmosphere enters when impacting cutter 100 and tackled the impurity in air by the gauze hindering worm gauze cover 120.Then from the multiple apertures ejection of first jet plate 130, the particle that equivalent aerodynamic diameter is greater than 10 μm is trapped on the first entrapment plate 140.Air-flow moves on and from the multiple apertures ejection of second nozzle plate 150, and the particle that equivalent aerodynamic diameter is greater than 2.5 μm is trapped on the second entrapment plate 160.All the other air-flows flow out from bottom airflow outlet and impact cutter 100, to enter damping device 200.In alternate embodiment more of the present utility model, this impact cutter 100 also can only include a nozzle plate and an entrapment plate.Certainly, in other alternate embodiment, in this impact cutter 100, the quantity of nozzle plate and entrapment plate can be respectively more than three or three.
In embodiments more of the present utility model, each concentrating and separating device 400 comprises one or more Virtual cropping device 410; Each Virtual cropping device 410 has airflow inlet, the first air stream outlet and the second air stream outlet.When the quantity of Virtual cropping device 410 is multiple, the first air stream outlet being in the Virtual cropping device of upstream in two often adjacent Virtual cropping devices is communicated with the airflow inlet of another Virtual cropping device, that is, in multiple Virtual cropping device, the first air stream outlet of each Virtual cropping device is communicated with the airflow inlet of the Virtual cropping device being adjacent to its downstream.
As shown in Figure 3, each Virtual cropping device 410 can comprise housing 411, first jet 412 and second nozzle 413.Be limited with accommodation cavity in housing 411, housing 411 offer the second air stream outlet.First jet 412 stretches into accommodation cavity, and its one end is airflow inlet, and the gas channel that limits of at least part of pipeline section of first jet 412 reduces gradually along the direction of air flow direction in it.Cavity is held in being positioned at least partly of second nozzle 413, and with first jet 412 coaxial spaced arrange, one end away from first jet 412 of second nozzle 413 is the first air stream outlet, and the gas channel that limits of at least part of pipeline section of second nozzle 413 expands gradually along the direction of air flow direction in it.
The course of work of each Virtual cropping device 410 can be: after air-flow enters each Virtual cropping device 410, and the larger particulate of equivalent aerodynamic diameter can enter in second nozzle 413 along with the first air-flow due to inertia.Airspace again owing to reserving between the outlet of first jet 412 and the entrance of second nozzle 413, the second air-flow and the less particulate of its equivalent aerodynamic diameter carried flow out from this airspace.
In embodiments more of the present utility model, for the ease of the discharge of the moisture of the gathering in the housing of each described Virtual cropping device 410, housing 411 also offers freeing port, and freeing port can install a drainpipe 414.
In embodiments more of the present utility model, each refrigerating plant 300 can comprise outer tube 310 and in outer tube 310 extend in pipe 320, the two ends of interior pipe 320 are communicated with a concentrating and separating device 400 with damping device 200 respectively, and the passage limited between outer tube 310 inwall and interior pipe 320 outer wall is for passing the flowing of cold medium.Further, the PM2.5 gasoloid enrichment method system of the utility model embodiment has a total refrigerating plant 900, and refrigerating plant 900 passes cold medium for providing.When the quantity of refrigerating plant 300 is multiple, the cold medium of the biography that refrigerating plant 900 provides can split into multichannel, flows through each refrigerating plant 300 simultaneously, after the air-flow cooling in internal pipe 320, flows back to refrigerating plant 900.Alternatively, the cold medium of the biography that refrigerating plant 900 provides can be a road, after flowing through multiple refrigerating plant 300 successively, after cooling successively the air-flow in pipe in each 320, is flowing back to refrigerating plant 900.Pass cold medium and can be salt solution, anti freezing solution or other solidifying points lower than the solution etc. of-10 DEG C.In the accompanying drawing of the utility model embodiment, the pipeline between refrigerating plant 900 and each refrigerating plant 300 is not shown.
In embodiments more of the present utility model, in order to ensure the refrigerating effect of refrigerating plant, the periphery wall of the outer tube 410 of each refrigerating plant can arrange heat-insulation layer 330.
In embodiments more of the present utility model, as shown in Figure 2, damping device 200 can be supersonic atomizing humidifier, can comprise water tank 210 and ultrasonic atomizatio module 220.Water tank 210 its there is top cover 211.Each refrigerating plant 300 is installed on top cover 211 vertically, and the interior pipe 320 of each refrigerating plant 300 is communicated with the internal cavities of water tank 210.Ultrasonic atomizatio module 220 is arranged on the diapire of water tank, is configured to the aquatic products unboiled water mist made in water tank 210.The quantity of ultrasonic atomizatio module 220 can be multiple.
In embodiments more of the present utility model, in order to improve the speed of the particulate absorbent steam in air, PM2.5 gasoloid enrichment method system also can comprise a heating arrangement 180, the air-flow be configured to being flowed into damping device 200 by impact cutter 100 heats, to improve the temperature of air-flow, be convenient to the particulate absorbent water smoke in air-flow.This heating arrangement 180 can be heating ring or is wrapped in the heater strip on the connecting line between impact cutter 100 and damping device 200.
In embodiments more of the present utility model, each concentrating and separating device 400 can be arranged on the top of a corresponding refrigerating plant 300.The airflow inlet of each concentrating and separating device 400 and the interior pipe 320 of refrigerating plant 300 are coaxially arranged, and are fixedly connected with the upper end open of interior pipe 320.Further, refrigerating plant 300 and concentrating and separating device 400 can be 5.PM2.5 gasoloid enrichment method system also comprises five in one gatherer 710, and five in one gatherer 710 has five gatherer imports be communicated with the first air stream outlet of a concentrating and separating device 400 respectively and exports for the gatherer of discharging the first air-flow with one.PM2.5 gasoloid enrichment method system also can comprise All-in-One gatherer 720, and this All-in-One gatherer 720 has multiple gatherer import of being communicated with the second air stream outlet of a Virtual cropping device 410 respectively and exports for the gatherer of discharging the second air-flow with one.
Fig. 4 is the schematic diagram of the PM2.5 online enrichment method mouth and nose exposure system according to the utility model embodiment.The utility model embodiment still provides a kind of PM2.5 online enrichment method mouth and nose exposure system, and it can comprise PM2.5 gasoloid enrichment method system in above-mentioned any embodiment and a mouth and nose exposing device 600.Mouth and nose exposing device has exposure chamber 630, and exposure chamber 630 is configured to receive dried first air-flow of drying device through gasoloid enrichment method system, absorbs with the animal be placed in exposure chamber 630.Particularly, the import of exposure chamber 630 can be communicated with the first air stream outlet of drying device 500, the waste gas outlet of exposure chamber can with the inlet communication of the first air pump 610.
Fig. 5 is the schematic cross sectional views of the exposure chamber of PM2.5 online enrichment method mouth and nose exposure system according to the utility model embodiment.As shown in Figure 5, exposure chamber 630 comprises: the inner core 631 of coaxial setting and urceolus 632, multiple animal holder 636 and multiple connecting pipe 635.Inner core 631 perisporium offers multilayer hole.The perisporium of urceolus 632 offers multilayer mounting hole, and a hole of each mounting hole of urceolus 632 and inner core 631 is coaxially arranged.The top of inner core 631 and urceolus 632 is provided with upper end cover 633, and the middle part that upper end is somebody's turn to do offers central hole, utilizes pipeline to be communicated with inner core 631 via central hole to make the first air pump 610.The bottom of inner core 631 and urceolus 632 is provided with bottom end cover 634, and bottom end cover 634 offers the spaced air hole of multiple circumferential direction along bottom end cover 634, air hole 634 is communicated with the space between inner core 631 and urceolus 632.For placing an animal in each animal holder 636, as experimental mouse.Each animal holder 636 can be installed on a mounting hole of urceolus 632, and each animal holder 636 has the opening be communicated with urceolus 632.Each connecting pipe 635 is coaxially arranged with a mounting hole of urceolus 632, and two ends stretch into a hole of inner core 631 and the opening of an animal holder 636 respectively, to be communicated with inner core 631 and an animal holder 636.And, the overall diameter of each connecting pipe 635 is less than the diameter of the opening of each animal holder 636, the air-flow of breathing out to allow animal flows out to the space between inner core 631 and urceolus 632 via the gap between connecting pipe 635 and the opening periphery of animal holder 636, and the air hole eventually passed through on bottom end cover 634 flows out the waste gas recovery treatment facility that exposure chamber 630 enters mouth and nose exposing device 600.
The above is only preferred implementation of the present utility model; should be understood that; for those skilled in the art, under the prerequisite not departing from the utility model principle, any improvements and modifications made also should be considered as protection domain of the present utility model.
Claims (10)
1. a PM2.5 gasoloid enrichment method system, is characterized in that comprising:
Impact cutter, be configured to receive air-flow, and remove the particle that in described air-flow, aerodynamics equivalent diameter is greater than 2.5 μm at least in part;
Damping device, is configured to receive the air-flow from described impact cutter, mixes to make the air-flow from described impact cutter with the water smoke that described damping device produces;
At least one refrigerating plant, each described refrigerating plant is configured to the mixed airflow that receives from described damping device and reduces the temperature of described mixed airflow, is more than or equal to 2.5 μm to make the equivalent aerodynamic diameter of at least part of particle in described mixed airflow rise to; With
At least one concentrating and separating device, each described concentrating and separating device is configured to receive the air-flow from a described refrigerating plant, and the airflow diversion from this refrigerating plant is become the first air-flow and the second air-flow, and make in the air-flow from this refrigerating plant, equivalent aerodynamic diameter rises to all particulates being more than or equal to 2.5 μm is partly or entirely arranged in described first air-flow; And
Drying device, is configured to receive and dry described first air-flow from least one concentrating and separating device described.
2. PM2.5 gasoloid enrichment method system according to claim 1, characterized by further comprising:
First air pump, is configured to from described drying device, aspirate described first air-flow; With
Second air pump, is configured to aspirate described second air-flow from least one concentrating and separating device described.
3. PM2.5 gasoloid enrichment method system according to claim 2, is characterized in that, also comprise:
First flow controller, is arranged on the air inlet pipeline of described first air pump; With
Second amount controller, is arranged on the air inlet pipeline of described second air pump.
4. PM2.5 gasoloid enrichment method system according to claim 1, is characterized in that, also comprise:
Heating arrangement, the air-flow be configured to flowing into described damping device by described impact cutter heats.
5. PM2.5 gasoloid enrichment method system according to claim 1, is characterized in that
Each described refrigerating plant comprises outer tube and pipe in extending in described outer tube, the two ends of described interior pipe are communicated with a described concentrating and separating device with described damping device respectively, and the passage limited between described outer tube wall and described outer wall of inner tube is for passing the flowing of cold medium.
6. PM2.5 gasoloid enrichment method system according to claim 5, it is characterized in that, described damping device is supersonic atomizing humidifier, comprising:
Water tank, it has top cover, and each described refrigerating plant is installed on described top cover vertically, and the interior pipe of each described refrigerating plant is communicated with the internal cavities of described water tank; With
Ultrasonic atomizatio module, is arranged on the diapire of described water tank, is configured to the aquatic products unboiled water mist made in described water tank.
7. PM2.5 gasoloid enrichment method system according to claim 1, is characterized in that
Each described concentrating and separating device comprises one or more Virtual cropping device, each described Virtual cropping utensil has airflow inlet, the first air stream outlet and the second air stream outlet, and in described multiple Virtual cropping device, the first air stream outlet of each described Virtual cropping device is communicated with the airflow inlet of the described Virtual cropping device being adjacent to its downstream.
8. PM2.5 gasoloid enrichment method system according to claim 7, is characterized in that, each described Virtual cropping device comprises:
Housing, is limited with accommodation cavity in it, it offers described second air stream outlet and freeing port;
First jet, stretches into described accommodation cavity, and its one end is described airflow inlet, and the gas channel that limits of at least part of pipeline section of described first jet reduces gradually along the direction of air flow direction in it; With
Second nozzle, it is positioned at described accommodation cavity at least partly, and with described first jet coaxial spaced arrange, one end away from described first jet of described second nozzle is described first air stream outlet, and the gas channel that limits of at least part of pipeline section of described second nozzle expands gradually along the direction of air flow direction in it.
9. PM2.5 gasoloid enrichment method system according to claim 1, is characterized in that
Be limited with for the first passage by described first air-flow with for the second channel by dry gas in described drying device, to make described dry gas, drying carried out to described first air-flow; And
Described PM2.5 gasoloid enrichment method system also comprises the 3rd flow controller, is configured to the flow regulating described dry gas, has predetermined humidity value to make described first air-flow flowed out from described PM2.5 gasoloid enrichment method system.
10. a PM2.5 online enrichment method mouth and nose exposure system, it is characterized in that, comprise the PM2.5 gasoloid enrichment method system according to any one of claim 1 to 9 and mouth and nose exposing device, described mouth and nose exposing device has exposure chamber, and described exposure chamber is configured to receive dried first air-flow of drying device through described gasoloid enrichment method system.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106482988A (en) * | 2016-12-13 | 2017-03-08 | 北京大学 | A kind of Portable high-flow air sampler |
| CN111855373A (en) * | 2020-07-26 | 2020-10-30 | 复旦大学 | Device and method for online measurement of trace polar organic matters in atmospheric concentrated particulate matters |
| CN112747974A (en) * | 2020-12-14 | 2021-05-04 | 复旦大学 | Device and method for collecting atmospheric aerosol and measuring small-molecular organic acid through online concentration |
| CN112763653A (en) * | 2020-12-14 | 2021-05-07 | 复旦大学 | Device and method for collecting atmospheric fine particulate concentrated solution on line and measuring total toxicity |
-
2015
- 2015-05-26 CN CN201520345628.5U patent/CN204705533U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106482988A (en) * | 2016-12-13 | 2017-03-08 | 北京大学 | A kind of Portable high-flow air sampler |
| CN111855373A (en) * | 2020-07-26 | 2020-10-30 | 复旦大学 | Device and method for online measurement of trace polar organic matters in atmospheric concentrated particulate matters |
| CN112747974A (en) * | 2020-12-14 | 2021-05-04 | 复旦大学 | Device and method for collecting atmospheric aerosol and measuring small-molecular organic acid through online concentration |
| CN112763653A (en) * | 2020-12-14 | 2021-05-07 | 复旦大学 | Device and method for collecting atmospheric fine particulate concentrated solution on line and measuring total toxicity |
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