CN107228783A - A kind of atmospheric aerosol harvester - Google Patents
A kind of atmospheric aerosol harvester Download PDFInfo
- Publication number
- CN107228783A CN107228783A CN201710356422.6A CN201710356422A CN107228783A CN 107228783 A CN107228783 A CN 107228783A CN 201710356422 A CN201710356422 A CN 201710356422A CN 107228783 A CN107228783 A CN 107228783A
- Authority
- CN
- China
- Prior art keywords
- interface
- filter screen
- joint chair
- filtrate
- quarrel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000005427 atmospheric aerosol Substances 0.000 title claims abstract description 11
- 239000000706 filtrate Substances 0.000 claims abstract description 27
- 238000005070 sampling Methods 0.000 claims abstract description 24
- 239000012528 membrane Substances 0.000 claims abstract description 18
- 238000007789 sealing Methods 0.000 claims abstract description 6
- 238000009423 ventilation Methods 0.000 claims description 11
- 238000005086 pumping Methods 0.000 claims description 6
- 238000003475 lamination Methods 0.000 claims description 4
- 239000013618 particulate matter Substances 0.000 abstract description 11
- 239000002245 particle Substances 0.000 description 11
- 238000000034 method Methods 0.000 description 8
- 239000003344 environmental pollutant Substances 0.000 description 7
- 231100000719 pollutant Toxicity 0.000 description 7
- 230000002745 absorbent Effects 0.000 description 2
- 239000002250 absorbent Substances 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000000443 aerosol Substances 0.000 description 1
- 125000000217 alkyl group Chemical group 0.000 description 1
- 238000003556 assay Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007872 degassing Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 230000001568 sexual effect Effects 0.000 description 1
- 238000010025 steaming Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/22—Devices for withdrawing samples in the gaseous state
- G01N1/2202—Devices for withdrawing samples in the gaseous state involving separation of sample components during sampling
- G01N1/2205—Devices for withdrawing samples in the gaseous state involving separation of sample components during sampling with filters
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/22—Devices for withdrawing samples in the gaseous state
- G01N1/2273—Atmospheric sampling
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Molecular Biology (AREA)
- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The invention discloses a kind of atmospheric aerosol harvester, including filtrate sampling folder and support member, the filtrate sampling folder is connected on the upside of support member；The filtrate sampling folder includes from top to bottom setting gradually the first filter membrane, supporting network inside joint chair circle, tight loop and interface, the joint chair circle；The interface is in bucket-shaped, touched with joint chair circle lower end by sealing trap splice grafting the upper end of interface, the interface on the outside of the contact position of joint chair circle with setting tight loop, the edge of the interface quarrel sets the second filter screen, the middle part of the interface quarrel sets the 3rd filter screen, and the bottom of the interface quarrel sets the 4th metafiltration net.The present invention is improved filtrate sampling folder on the basis of existing air collector, is provided with multistorey strainer mesh to filtrate folder, it is ensured that the particulate matter in the air passed through drops on filter screen, improves the degree of accuracy of gathered data.
Description
Technical field
The present invention relates to environment measuring, and in particular to a kind of atmospheric aerosol harvester.
Background technology
Atmospheric sampling is the important step of atmosphere environment supervision, and the reliable sexual intercourse for Monitoring Data is very big.Collection is big
The method of gas sample product, mainly there is two classes:One class is to make large quantity of air by liquid-absorbant or solid absorbent, to absorb or hinder
Pollutant is stayed, the relatively low enriching pollutants of concentration in original air are got up, such as degassing method, filter membrane method.Measured with this kind of method
Result be pollutant in air in the sampling time mean concentration.Another kind of is to use container (vial, polybag, rubber ball
Courage, syringe etc.) air of the collection containing pollutant.This kind of method is applied to following situations：In air the concentration of pollutant compared with
It is high；Or the sensitivity of assay method is higher；It is difficult by the dusty gas and steaming of liquid-absorbant absorption or solid absorbent absorption
Vapour.The result measured with this method is the instantaneous concentration or the mean concentration in the short time of pollutant in air.In addition, also low temperature
Freezing, available for collection escaping gas and steam, such as alkyl lead.Wherein, should using the air sampler of filtrate choked flow method
The pollutant isolated with filter membrane in air, but existing this air sampler is in sampling process, it is also possible to occur particle
The phenomenon that thing is rebounded or blown away from filtrate, particularly in the case where sampling rate is big, particle readily penetrates through filter screen, not in filter
Online precipitation, these situations are all to cause the reason for collecting efficiency is relatively low.
The content of the invention
The present invention is in order to solve the above problems, it is therefore intended that provide a kind of atmospheric aerosol harvester, it is to avoid above-mentioned situation
Generation, improve particle collection the degree of accuracy.
The present invention is achieved through the following technical solutions：
A kind of atmospheric aerosol harvester, including filtrate sampling folder and support member, the filtrate sampling folder are connected to branch
On the upside of the part of support part；The filtrate sampling folder includes from top to bottom setting successively inside joint chair circle, tight loop and interface, the joint chair circle
Put the first filter membrane, supporting network；The interface is in bucket-shaped, and upper end and the joint chair circle lower end of interface are touched by sealing trap splice grafting, institute
Interface is stated with setting tight loop on the outside of the contact position of joint chair circle, the edge of the interface quarrel sets the second filter screen, described to connect
The middle part of mouth quarrel sets the 3rd filter screen, and the bottom of the interface quarrel sets the 4th metafiltration net.
Air collector of the prior art, using filtrate gather air in aerosol particle thing be based on directly stop,
Inertial collision, diffusion precipitin, electrostatic attraction and gravitational settling etc. are acted on.Some filtrates based on interception, some filtrates with
Based on electrostatic attraction effect, the then several effects having occur simultaneously.The collecting efficiency of filtrate except having outside the Pass with self property, also with
The factors such as sample rate, the size of particulate matter are relevant.When low speed is sampled, based on diffusion precipitin, the collection to tiny particles content
Efficiency high；During high-speed sampling, acted on inertial collision based on, it is high to the collecting efficiency of larger particles.Size in air
Grain thing is simultaneously and deposited, when the timing of sample rate one, it is possible to which the particulate matter collecting efficiency for making a part of particle diameter small is relatively low.
In sampling process, it is also possible to occur the phenomenon that particulate matter is rebounded or blown away from filtrate, particularly in the big situation of sampling rate
Under, phenomenon that particle is big, the particle of quality weight easily rebounds；The small particle of particle is easily blown away through filtrate, and these situations are all
It is to cause the reason for collecting efficiency is relatively low.
The problem of present invention exists for above-mentioned air sampler is improved, and many metafiltration are set in filtrate sampling folder
Film, wherein, supporting network is provided with the downside of the first filter membrane, the particulate matter born its object is to the first filter membrane is most, particulate matter pair
The impact of first filter membrane is maximum, in order to prevent the first filter membrane from damaging, sets supporting network to be supported the first filter membrane；Second filter
Film, the 3rd filter membrane, the 4th filter membrane are from top to bottom set, and the particulate matter that it is intercepted is less and less from top to bottom, fewer and fewer, its
Purpose be by the first filter membrane be the particulate matter intercepted carry out second, third time, the 4th interception, it is ensured that in the wind passed through
The content of particulate matter be preferably minimized；The downside of joint chair circle is fitted with the upside of interface, and outside carries out locking admittedly using tight loop
Fixed, inner side is sealed using sealing ring, it is therefore intended that further strengthen the rate of tension of the first filter membrane and supporting network.
Further, the 3rd filter screen is in bucket-shaped, and its summit is fixed on the second filter screen, and its edge is fixed on the second filter screen
On interface inwall between the 4th filter screen.3rd filter screen uses bucket-shaped, and it is inclined, with certain angle to make the 3rd filter screen
, so make particulate matter will not be perpendicular through the 3rd filter screen, it is easier to be intercepted by filter screen.
Further, support member includes ventilation duct, shell, described ventilation duct one end connecting interface, and the other end is from shell
Upside enter in shell, and with setting pumping blower fan inside the housing be connected, the blower fan that is evacuated is also associated with flow
Recorder, the bottom of the shell is provided with a plurality of supporting leg, and the supporting leg lower end is provided with movable pulley, and the movable pulley is set
It is equipped with fixed buckle.Support member is easy to the movement and locking of harvester.
Further, it is spiral lamination inside ventilation duct.Ventilation duct is arranged to spiral lamination, can produce air a certain degree of
Whirlpool, it is ensured that the particulate matter for entering filtrate sampling folder reduces loss.
The present invention compared with prior art, has the following advantages and advantages：The present invention is in the collection of existing air
On the basis of device, filtrate sampling folder is improved, multistorey strainer mesh is provided with to filtrate folder, it is ensured that in the air passed through
Grain thing drops on filter screen, improves the degree of accuracy of gathered data.
Brief description of the drawings
Accompanying drawing described herein is used for providing further understanding the embodiment of the present invention, constitutes one of the application
Point, do not constitute the restriction to the embodiment of the present invention.In the accompanying drawings：
Fig. 1 is filtrate of the present invention sampling clamping structure schematic diagram；
Fig. 2 is schematic structural view of the invention.
Mark and corresponding parts title in accompanying drawing：
1- filtrates sampling folder, 2- ventilation ducts, 3- pumping blower fans, 4- flow registering instruments, 5- shells, 6- supporting legs, 7- is fixed
Buckle, 8- movable pulleies, the filter membranes of 11- first, 12- supporting networks, 13- joint chair circles, 14- sealing rings, 15- tight loops, 16- second is filtered
Film, the filter membranes of 17- the 3rd, the filter membranes of 18- the 4th, 19- interfaces.
Embodiment
For the object, technical solutions and advantages of the present invention are more clearly understood, with reference to embodiment and accompanying drawing, to this
Invention is described in further detail, and exemplary embodiment and its explanation of the invention is only used for explaining the present invention, does not make
For limitation of the invention.
Embodiment 1
As depicted in figs. 1 and 2, a kind of atmospheric aerosol harvester, including filtrate sampling folder 1 and support member, the filter
Material sampling folder 1 is connected on the upside of support member；The filtrate sampling folder 1 includes joint chair circle 13, tight loop 15 and interface 19, described
The first filter membrane 11, supporting network 12 are from top to bottom set gradually inside joint chair circle 13；The interface 19 is in bucket-shaped, the upper end of interface 19
Contacted with the lower end of joint chair circle 13 by the closure of sealing ring 15, the interface 19 on the outside of the contact position of joint chair circle 13 with setting tight loop
15, the edge of the quarrel of interface 19 sets the second filter screen 16, and the middle part of the quarrel of interface 19 sets the 3rd filter screen 17, institute
The bottom for stating the quarrel of interface 19 sets the 4th metafiltration net 18.
Support member includes ventilation duct 2, shell 5, and one end connecting interface 19 of ventilation duct 2, the other end is upper from shell 5
Side enters in shell 5, and is connected with the pumping blower fan 3 being arranged on inside shell 5, and the pumping blower fan 3 is also associated with flow
Recorder 4, the bottom of the shell 5 is provided with a plurality of supporting leg 6, and the lower end of supporting leg 6 is provided with movable pulley 8, the cunning
Driving wheel 8 is provided with fixed buckle 9.
The inside of ventilation duct 2 is spiral lamination
Embodiment 2
The present embodiment and the difference of embodiment 1 are that the 3rd filter screen 17 is in bucket-shaped, and its summit is fixed on the second filter screen 16
On, its edge is fixed on the inwall of interface 19 between the second filter screen 16 and the 4th filter screen 18.
Above-described embodiment, has been carried out further to the purpose of the present invention, technical scheme and beneficial effect
Describe in detail, should be understood that the embodiment that the foregoing is only the present invention, be not intended to limit the present invention
Protection domain, within the spirit and principles of the invention, any modification, equivalent substitution and improvements done etc. all should be included
Within protection scope of the present invention.
Claims (4)
1. a kind of atmospheric aerosol harvester, it is characterised in that including filtrate sampling folder (1) and support member, the filtrate is adopted
Sample folder (1) is connected on the upside of support member；The filtrate sampling folder (1) includes joint chair circle (13), tight loop (15) and interface
(19) the first filter membrane (11), supporting network (12) from top to bottom, are set gradually inside the joint chair circle (13)；The interface (19) is in
Bucket-shaped, the upper end of interface (19) is contacted with joint chair circle (13) lower end by sealing ring (15) closure, the interface (19) and joint chair
Enclose and tight loop (15) is set on the outside of the contact position of (13), the edge of interface (19) quarrel sets the second filter screen (16), institute
The middle part for stating interface (19) quarrel sets the 3rd filter screen (17), and the bottom of interface (19) quarrel sets the 4th metafiltration net
(18)。
2. a kind of atmospheric aerosol harvester according to claim 1, it is characterised in that the 3rd filter screen (17) is in
Bucket-shaped, its summit is fixed on the second filter screen (16), and its edge is fixed between the second filter screen (16) and the 4th filter screen (18)
On interface (19) inwall.
3. a kind of atmospheric aerosol harvester according to claim 1, it is characterised in that the support member includes ventilation
(2), shell (5) are managed, ventilation duct (2) one end connecting interface (19), the other end enters shell (5) from the upside of shell (5)
In, and be connected with the pumping blower fan (3) for being arranged on shell (5) inside, the pumping blower fan (3) is also associated with flow registering instrument
(4), the bottom of the shell (5) is provided with a plurality of supporting leg (6), and supporting leg (6) lower end is provided with movable pulley (8), institute
State movable pulley (8) and be provided with fixed buckle (9).
4. a kind of atmospheric aerosol harvester according to claim 3, it is characterised in that be inside the ventilation duct (2)
Spiral lamination.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710356422.6A CN107228783A (en) | 2017-05-19 | 2017-05-19 | A kind of atmospheric aerosol harvester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710356422.6A CN107228783A (en) | 2017-05-19 | 2017-05-19 | A kind of atmospheric aerosol harvester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107228783A true CN107228783A (en) | 2017-10-03 |
Family
ID=59934541
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710356422.6A Pending CN107228783A (en) | 2017-05-19 | 2017-05-19 | A kind of atmospheric aerosol harvester |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107228783A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110779776A (en) * | 2019-11-06 | 2020-02-11 | 广东省职业病防治院(广东省职业卫生检测中心) | Air sampling tube for collecting chlorobenzene compounds |
| CN112098151A (en) * | 2020-09-07 | 2020-12-18 | 中国气象科学研究院 | Cloud and mist water collection device and cloud and mist water collection method |
| CN112619321A (en) * | 2020-12-22 | 2021-04-09 | 常胜男 | A filter membrane subassembly for air particulate matter sampling |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4235098A (en) * | 1979-08-02 | 1980-11-25 | Tisch Wilbur P | Air sampling apparatus |
| CN201329230Y (en) * | 2008-11-19 | 2009-10-21 | 聚光科技（杭州）有限公司 | Novel filtering device |
| CN101692021A (en) * | 2009-10-21 | 2010-04-07 | 武汉市天虹仪表有限责任公司 | Single-channel multi-functional intermediate-volume atmospheric particulate cascade sampling cutter |
| CN102323111A (en) * | 2011-08-15 | 2012-01-18 | 西北核技术研究所 | Method for sampling ultrahigh flow aerosol and sampler |
| CN204395670U (en) * | 2014-12-08 | 2015-06-17 | 成都思达高科软件有限公司 | A kind of novel particle collector |
| CN105181396A (en) * | 2015-09-11 | 2015-12-23 | 北京市化工职业病防治院 | Personal respirable dust sampling device |
-
2017
- 2017-05-19 CN CN201710356422.6A patent/CN107228783A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4235098A (en) * | 1979-08-02 | 1980-11-25 | Tisch Wilbur P | Air sampling apparatus |
| CN201329230Y (en) * | 2008-11-19 | 2009-10-21 | 聚光科技（杭州）有限公司 | Novel filtering device |
| CN101692021A (en) * | 2009-10-21 | 2010-04-07 | 武汉市天虹仪表有限责任公司 | Single-channel multi-functional intermediate-volume atmospheric particulate cascade sampling cutter |
| CN102323111A (en) * | 2011-08-15 | 2012-01-18 | 西北核技术研究所 | Method for sampling ultrahigh flow aerosol and sampler |
| CN204395670U (en) * | 2014-12-08 | 2015-06-17 | 成都思达高科软件有限公司 | A kind of novel particle collector |
| CN105181396A (en) * | 2015-09-11 | 2015-12-23 | 北京市化工职业病防治院 | Personal respirable dust sampling device |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110779776A (en) * | 2019-11-06 | 2020-02-11 | 广东省职业病防治院(广东省职业卫生检测中心) | Air sampling tube for collecting chlorobenzene compounds |
| CN112098151A (en) * | 2020-09-07 | 2020-12-18 | 中国气象科学研究院 | Cloud and mist water collection device and cloud and mist water collection method |
| CN112619321A (en) * | 2020-12-22 | 2021-04-09 | 常胜男 | A filter membrane subassembly for air particulate matter sampling |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20171003 |