CN208596104U - A kind of portable PM2.5 particle sampling apparatus - Google Patents
A kind of portable PM2.5 particle sampling apparatus Download PDFInfo
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- CN208596104U CN208596104U CN201821314370.2U CN201821314370U CN208596104U CN 208596104 U CN208596104 U CN 208596104U CN 201821314370 U CN201821314370 U CN 201821314370U CN 208596104 U CN208596104 U CN 208596104U
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- filtration film
- particle
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- film
- inner chamber
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Abstract
The utility model discloses a kind of portable PM2.5 particle sampling apparatuses, including sampling cylinder, one end of the sampling cylinder is import, negative-pressure air fan is provided in the import, the right end of the negative-pressure air fan is provided with gas flowmeter, the other end of the import is connected with first inner chamber, the lower end of the first inner chamber is provided with the first particle collector, the right of the first inner chamber is connected with diversion pipe, the diversion pipe is fixedly connected by fixed frame with the inner wall of sampling cylinder, offers through-hole in the diversion pipe.A kind of portable PM2.5 particle sampling apparatus described in the utility model; by being provided with negative-pressure air fan; it is inhaled into gas quickly, and makes the air of sucking that there is kinetic energy, hit cavity inner wall and filter membrane surface; keep screening separating effect more preferable; by being provided with gas flowmeter, to gas flow implementing monitoring, most suitable gas flow rate is kept; gas can be made to provide kinetic energy and filter membrane is protected not to be damaged.
Description
Technical field
The utility model relates to particle sampling technique field, in particular to a kind of portable PM2.5 particle sampling apparatus.
Background technique
PM2.5 refers to particulate matter of the diameter less than or equal to 2.5 microns, also referred to as lung particulate matter in atmosphere.Although
PM2.5 is the component that content is seldom in earth atmosphere ingredient, but it has important influence, section to air quality and visibility etc.
Scholar indicates the content of this particle in every cubic metres of air with PM2.5, this value is higher, and it is more serious just to represent air pollution,
Bigger to human injury, in the sciemtifec and technical sphere of high speed development, the accuracy of manufacture of display panel or semiconductor product is required increasingly
Height, display panel or semiconductor product are usually that assembling production is carried out in dust free room, and dustless indoor tiny particle is (such as micro-
Grain) it can deposit that cause the display panel of final output or semiconductor product foreign matter occur on a display panel bad, for this purpose,
Be badly in need of analyzing particle sample detecting, traditional sampling apparatus, filter membrane and detection device are integral type, cannot to filter membrane into
Row replacement and cleaning cause filter membrane to be used for a long time and are easy blocking, and while damaging can only scrap processing, increase use at
This.
Utility model content
The main purpose of the utility model is to provide a kind of portable PM2.5 particle sampling apparatuses, can effectively solve
The problems in background technique.
To achieve the above object, the technical solution that the utility model is taken are as follows:
A kind of portable PM2.5 particle sampling apparatus, including sampling cylinder, one end of the sampling cylinder are import, it is described into
It is provided with negative-pressure air fan in mouthful, the right end of the negative-pressure air fan is provided with gas flowmeter, and the other end of the import is connected with
First inner chamber, the lower end of the first inner chamber are provided with the first particle collector, and the right of the first inner chamber is connected with water conservancy diversion
Pipe, the diversion pipe are fixedly connected by fixed frame with the inner wall of sampling cylinder, and through-hole, the through-hole are offered in the diversion pipe
The other end be connected to second inner chamber, be disposed with by-pass filtration film, secondary filtration film, three-stage filtration in the second inner chamber
Film, the by-pass filtration film, secondary filtration film, three-stage filtration film are installed in second inner chamber by card slot, the by-pass filtration
Film, secondary filtration film, three-stage filtration film one end be respectively mounted on a mounting board, handle, institute are provided on the upside of the mounting plate
It states and is provided with second outlet on the downside of the right end of sampling cylinder, the second outlet is arranged between secondary filtration film, three-stage filtration film,
The other end of the second outlet is connected with the second particle collector, and the right end of the sampling cylinder is provided with first outlet.
Preferably, the gas flow rate control of the import is 600-1000mL/min.
Preferably, the aperture of the by-pass filtration film is 6 μm, and the aperture of the secondary filtration film is 2.5 μm, the three-level
The aperture of filter membrane is 0.1-0.2 μm.
Preferably, the by-pass filtration film, secondary filtration film, three-stage filtration film film thickness be slightly less than the internal diameter of card slot.
Preferably, the by-pass filtration film, secondary filtration film, three-stage filtration film are made of polytetrafluoroethylene material.
Preferably, the mounting plate is flexibly connected with sampling cylinder, and the junction of the mounting plate and sampling cylinder is provided with close
Seal.
Compared with prior art, the utility model has the following beneficial effects: a kind of portable PM2.5 particle sampling cartridge
Set, by being provided with negative-pressure air fan, be inhaled into gas quickly, and make the air of sucking that there is kinetic energy, hit cavity inner wall and
Filter membrane surface keeps screening separating effect more preferable, by being provided with gas flowmeter, to gas flow implementing monitoring, keeps most
Suitable gas flow rate can make gas provide kinetic energy and filter membrane is protected not to be damaged, by being provided with the first powder collection
Device is collected as female sample unsegregated particle, refers to for ultimate analysis, by being provided with by-pass filtration film, to it
Intracorporal macromolecular particle carries out preliminary screening, prevents the filter hole of blocking secondary filtration film, passes through the aperture of secondary filtration film
2.5 μm are set as, the aperture of three-stage filtration film is set as 0.1-0.2 μm, so that PM2.5 is realized separation, by being provided with second
Grain collector, is collected the PM2.5 particle of screening, by being provided with card slot, matches with filter membrane, and can conveniently take
Under.
Detailed description of the invention
Fig. 1 is a kind of overall structure diagram of portable PM2.5 particle sampling apparatus of the utility model.
Fig. 2 is a kind of planar structure schematic diagram of portable PM2.5 particle sampling apparatus of the utility model.
Fig. 3 is a kind of structural schematic diagram of the by-pass filtration film of portable PM2.5 particle sampling apparatus of the utility model.
In figure: 1, sampling cylinder；2, import；3, negative-pressure air fan；4, first inner chamber；5, the first particle collector；6, diversion pipe；
7, through-hole；8, fixed frame；9, second inner chamber；10, mounting plate；11, handle；12, by-pass filtration film；13, card slot；14, second level mistake
Filter membrane；15, the second particle collector；16, gas flowmeter；17, three-stage filtration film；18, first outlet；19, second outlet.
Specific embodiment
To be easy to understand the technical means, creative features, achievement of purpose, and effectiveness of the utility model, below
In conjunction with specific embodiment, the utility model is further described.
As shown in Figure 1-3, a kind of portable PM2.5 particle sampling apparatus, including sampling cylinder 1, one end of sampling cylinder 1 be into
Mouthfuls 2, negative-pressure air fan 3 is provided in import 2, and the right end of negative-pressure air fan 3 is provided with gas flowmeter 16, outlet 2 other ends connection
There is first inner chamber 4, the lower end of first inner chamber 4 is provided with the first particle collector 5, and the right of first inner chamber 4 is connected with diversion pipe
6, diversion pipe 6 is fixedly connected by fixed frame 8 with the inner wall of sampling cylinder 1, offers through-hole 7 in diversion pipe 6, through-hole 7 it is another
End is connected to second inner chamber 9, is disposed with by-pass filtration film 12, secondary filtration film 14, three-stage filtration film 17 in second inner chamber 9,
By-pass filtration film 12, secondary filtration film 14, three-stage filtration film 17 are installed in second inner chamber 9 by card slot 13, by-pass filtration film
12, secondary filtration film 14, three-stage filtration film 17 one end be installed on mounting plate 10, the upside of mounting plate 10 is provided with handle
11, the right end downside of sampling cylinder 1 is provided with second outlet 19, and second outlet 19 is arranged in secondary filtration film 14, three-stage filtration film
Between 17, the other end of second outlet 19 is connected with the second particle collector 15, and the right end of sampling cylinder 1 is provided with first outlet
18。
The gas flow rate control of import is 600-1000mL/min, makes gas that there is enough kinetic energy to hit filter membrane；One
The aperture of grade filter membrane 12 is 6 μm, and the aperture of secondary filtration film 14 is 2.5 μm, and the aperture of three-stage filtration film 17 is 0.1-0.2 μ
M carries out screening separation to particle；By-pass filtration film 12, secondary filtration film 14, three-stage filtration film 17 film thickness be slightly less than card slot 13
Internal diameter, filter membrane is fixed；By-pass filtration film 12, secondary filtration film 14, three-stage filtration film 17 are by polytetrafluoroethylene (PTFE)
Material is made, and powerful big, porosity height, aperture are small and uniform；Mounting plate 10 is flexibly connected with sampling cylinder 1, mounting plate 10 with
The junction of sampling cylinder 1 is provided with sealing ring, guarantees that leakproofness is good and conveniently preferably takes out filter membrane.
It should be noted that the utility model is that a kind of portable PM2.5 particle sampling apparatus is first closed when in use
Second outlet 19 opens first outlet 18, then starts negative-pressure air fan 3, adjusts the output power of negative-pressure air fan 3, controls gas
Flowmeter is shown as 800mL/min, and gas enters from import 2, enters first inner chamber 4 by negative-pressure air fan 3, then from
Through-hole 7 enters second inner chamber 9, and by by-pass filtration film 12, the granulin molecule greater than 6 μm is blocked on the upside of film, to big point
Sub- particle carries out screening interception, prevent enter 14 film surface of secondary filtration make its be blocked, the granulin molecule less than 6 μm continue into
Entering secondary filtration film 14 and carries out screening separation, the granulin molecule less than 2.5 μm enters next stage, and is retained by three-level filter membrane 17,
Air permeable three-stage filtration film 17 is simultaneously discharged from first outlet 18, using the first particle collector 5 to initial air particle into
Row is collected, and is opened second outlet 19, is collected the PM2.5 being trapped by the second particle collector 15, after 5-10min, is closed negative
Pressure fan 3, handle 11 of holding with a firm grip are successively slowly withdrawn by-pass filtration film 12, secondary filtration film 14, three-stage filtration film 17, to attachment
It is purged in the particulate matter of film surface, guarantees film surface cleaning, then put it into card slot 13, finally to first
The PM2.5 of air particles and the second particle collector 15 in grain collector 5 is analyzed and processed.
The basic principles and main features of the present invention and the advantages of the present invention have been shown and described above.Current row
The technical staff of industry is described in above embodiments and description it should be appreciated that the present utility model is not limited to the above embodiments
Only illustrate the principles of the present invention, on the premise of not departing from the spirit and scope of the utility model, the utility model is also
It will have various changes and improvements, these various changes and improvements fall within the scope of the claimed invention.The utility model
Claimed range is defined by the appending claims and its equivalent thereof.
Claims (6)
1. a kind of portable PM2.5 particle sampling apparatus, including sampling cylinder (1), it is characterised in that: the one of the sampling cylinder (1)
End is import (2), is provided with negative-pressure air fan (3) in the import (2), the right end of the negative-pressure air fan (3) is provided with gas stream
The other end of meter (16), the import (2) is connected with first inner chamber (4), and the lower end of the first inner chamber (4) is provided with first
The right of particle collector (5), the first inner chamber (4) is connected with diversion pipe (6), and the diversion pipe (6) passes through fixed frame (8)
It is fixedly connected with the inner wall of sampling cylinder (1), is offered through-hole (7) in the diversion pipe (6), the other end of the through-hole (7) connects
Logical second inner chamber (9), the second inner chamber (9) is interior to be disposed with by-pass filtration film (12), secondary filtration film (14), three-level mistake
Filter membrane (17), the by-pass filtration film (12), secondary filtration film (14), three-stage filtration film (17) are installed on the by card slot (13)
In two inner cavities (9), the by-pass filtration film (12), secondary filtration film (14), three-stage filtration film (17) one end be installed in peace
It in loading board (10), is provided with handle (11) on the upside of the mounting plate (10), the is provided on the downside of the right end of the sampling cylinder (1)
Two outlets (19), the second outlet (19) are arranged between secondary filtration film (14), three-stage filtration film (17), and described second goes out
The other end of mouth (19) is connected with the second particle collector (15), and the right end of the sampling cylinder (1) is provided with first outlet (18).
2. a kind of portable PM2.5 particle sampling apparatus according to claim 1, it is characterised in that: the import (2)
Gas flow rate control is 600-1000mL/min.
3. a kind of portable PM2.5 particle sampling apparatus according to claim 1, it is characterised in that: the by-pass filtration
The aperture of film (12) is 6 μm, and the aperture of the secondary filtration film (14) is 2.5 μm, and the aperture of the three-stage filtration film (17) is
0.1-0.2μm。
4. a kind of portable PM2.5 particle sampling apparatus according to claim 1, it is characterised in that: the by-pass filtration
Film (12), secondary filtration film (14), three-stage filtration film (17) film thickness be slightly less than the internal diameter of card slot (13).
5. a kind of portable PM2.5 particle sampling apparatus according to claim 1, it is characterised in that: the by-pass filtration
Film (12), secondary filtration film (14), three-stage filtration film (17) are made of polytetrafluoroethylene material.
6. a kind of portable PM2.5 particle sampling apparatus according to claim 1, it is characterised in that:
The mounting plate (10) is flexibly connected with sampling cylinder (1), and the mounting plate (10) and the junction of sampling cylinder (1) are provided with
Sealing ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821314370.2U CN208596104U (en) | 2018-08-15 | 2018-08-15 | A kind of portable PM2.5 particle sampling apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821314370.2U CN208596104U (en) | 2018-08-15 | 2018-08-15 | A kind of portable PM2.5 particle sampling apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208596104U true CN208596104U (en) | 2019-03-12 |
Family
ID=65604898
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821314370.2U Expired - Fee Related CN208596104U (en) | 2018-08-15 | 2018-08-15 | A kind of portable PM2.5 particle sampling apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208596104U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109893956A (en) * | 2019-04-08 | 2019-06-18 | 南京工业大学 | A kind of soft package lithium battery thermal runaway gas filtration collection device and its operating method |
-
2018
- 2018-08-15 CN CN201821314370.2U patent/CN208596104U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109893956A (en) * | 2019-04-08 | 2019-06-18 | 南京工业大学 | A kind of soft package lithium battery thermal runaway gas filtration collection device and its operating method |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190312 Termination date: 20190815 |
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| CF01 | Termination of patent right due to non-payment of annual fee |