CN109916678A - A kind of sampling cutter - Google Patents
A kind of sampling cutter Download PDFInfo
- Publication number
- CN109916678A CN109916678A CN201910181766.7A CN201910181766A CN109916678A CN 109916678 A CN109916678 A CN 109916678A CN 201910181766 A CN201910181766 A CN 201910181766A CN 109916678 A CN109916678 A CN 109916678A
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- CN
- China
- Prior art keywords
- cutter
- main body
- sampling
- plug
- button block
- 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
- 238000005070 sampling Methods 0.000 title claims abstract description 49
- 238000000926 separation method Methods 0.000 claims abstract description 33
- 239000003463 adsorbent Substances 0.000 claims abstract description 15
- 230000002209 hydrophobic effect Effects 0.000 claims abstract description 11
- 239000013618 particulate matter Substances 0.000 claims description 11
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 5
- 239000007787 solid Substances 0.000 claims description 3
- 239000000779 smoke Substances 0.000 abstract description 11
- 239000002245 particle Substances 0.000 abstract description 9
- 238000012360 testing method Methods 0.000 abstract description 8
- 238000001514 detection method Methods 0.000 abstract description 5
- 238000004880 explosion Methods 0.000 abstract 1
- 239000003921 oil Substances 0.000 description 22
- 235000019198 oils Nutrition 0.000 description 22
- 239000007789 gas Substances 0.000 description 15
- 230000000694 effects Effects 0.000 description 6
- 238000005520 cutting process Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000010419 fine particle Substances 0.000 description 2
- 230000003189 isokinetic effect Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 206010021703 Indifference Diseases 0.000 description 1
- 239000000809 air pollutant Substances 0.000 description 1
- 231100001243 air pollutant Toxicity 0.000 description 1
- 208000006673 asthma Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 206010006451 bronchitis Diseases 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010411 cooking Methods 0.000 description 1
- 238000010219 correlation analysis Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 239000008157 edible vegetable oil Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 239000003517 fume Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000003902 lesion Effects 0.000 description 1
- 210000004072 lung Anatomy 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012806 monitoring device Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 238000003921 particle size analysis Methods 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 210000002345 respiratory system Anatomy 0.000 description 1
- 229940099259 vaseline Drugs 0.000 description 1
Landscapes
- Sampling And Sample Adjustment (AREA)
Abstract
The invention belongs to cutter for particles technical fields, in particular a kind of oil smoke sampling cutter, in cutter work, the gas taken is entered in separation chamber by inlet attack, it is adsorbed in sample gas by the bulky grain oil droplet (100 μm of peak diameter) that mechanical explosion generates by separating indoor hydrophobic oil suction adsorbent, reduce the bulky grain oil droplet content in gaseous sample, separation chamber is left finally by pagoda pipe fitting, by isolating the bulky grain oil droplet under test gas, enhance the accuracy of detection, avoid quick pollution of the bulky grain oil droplet to sensor, bulky grain oil droplet penetrates into adsorbent without accumulating in striking face simultaneously, to extend cutter service life.Adsorbent is connected together by entrance plug and outlet plug with cutter main body, can complete to dismantle and replace to cutter without using in the case where tool when safeguarding cutter.
Description
Technical field
The invention belongs to cutter for particles technical fields, and in particular to a kind of smoke particle object sampling cutter.
Background technique
People increasingly pay attention to air quality in recent years, especially PM2.5And PM10Attention degree it is maximum, because of these two types
Particulate matter can be directly entered respiratory tract and even enter human lung, cause include asthma, bronchitis andCardiovascular diseaseDeng side
The disease in face avoids causing uncomfortable or lesion in order to ensure the Optimality of air quality, needs to live to people thus
The concentration of these two types of particulate matters in environment is measured.
In order to which to acquired particulate matter, aerodynamically partial size is classified, need using cutter for particles to
Grain object carries out classification acquisition by different particle size distribution, no matter uses the cutter of that type, needs according to partial size cut point
The sampling rate that demand is accurately set and kept constant to gas flow rate.Therefore, it is needing to gas in pipelines particulate matter
When carrying out real-time sampling and carrying out partial size correlation analysis, need to " isokinetic sampling " and " constant speed sampling " two different sampling sides
Formula is coupled, and most commonly uses free settling room (expansion chamber is most of the time equipped with dedicated dilution air distributing device),
Such Coupling device is bulky, and control mechanism is complicated, is often equipped with complicated bulky zero gas generating device, therefore such real-time
Particle size analysis system is difficult to realize portable construction, with laboratory or the fixed test macro of special field layout
Based on form.Recently as the promotion that Chinese environmental protection requires, also come stringenter to the limitation of oil smoke of catering industry discharge, oil smoke exists
The research and development and application gradually industrialization of line monitoring device, but oil smoke Air Pollutants --- oil smoke fine particle is adopted
Sample has still continued to use traditional isokinetic sampling's method equipment, and such equipment very bulky, cost is high, not can be used directly in
Oil smoke on-line monitoring equipment, therefore produce cheap to small and flexible and can accurately reflect smoke particle object level of pollution
The demand of oil smoke sampling device.
This also proposes requirement to the micromation of the sampling cutter in sampling apparatus simultaneously, and realization is installed on portable equipment
Middle completion cutting operation, and non-test particulate matter is effectively cut and separates, the bulky grain oil droplet under test gas is isolated, is avoided
Test value inaccuracy.
Summary of the invention
To solve the problems mentioned above in the background art, the invention provides the following technical scheme:
The inside of a kind of sampling cutter, including cutter main body, the cutter main body is equipped with separation chamber, the separation
The side of room is fixedly connected with the first Button Block, and the other side of the separation chamber is fixedly connected with the second Button Block, the cutter master
The side of body is equipped with entrance plug, and the side of the entrance plug is equipped with inlet attack far from the side of the cutter main body,
The inlet attack runs through the entrance plug, and the side of the entrance plug has first far from the side of the inlet attack
The side of protrusion, the cutter main body is equipped with outlet plug far from the side of the entrance plug, described to export the one of plug
Side is equipped with pagoda pipe fitting far from the side of the cutter main body, and the pagoda pipe fitting runs through the outlet plug, described
The side for exporting plug has the second protrusion far from the side of the pagoda pipe fitting, and the inside of the separation chamber is equipped with hydrophobic suction
Oily adsorbent.
Preferably, the entrance plug and the separation chamber are connected by first protrusion and first Button Block engaging
It connects.
Preferably, the outlet plug and the separation chamber are connected by second protrusion and second Button Block engaging
It connects.
Preferably, the inner sidewall of first Button Block is fixedly connected with the first gasket, is located at first protrusion and institute
State the junction of the first Button Block.
Preferably, the inner sidewall of second Button Block is fixedly connected with the second gasket, is located at second protrusion and institute
State the junction of the second Button Block.
Preferably, a length of 100 millimeters of the cutter main body, width are 30 millimeters.
Preferably, the sampling gun includes sampling pipe main body, and sampling pipe main body includes ozzle, tube body, Guan Ji；The tube body
Side offers ozzle, and the tube body is fixedly connected with Guan Ji far from the side of the ozzle；The sampling pipe main body passes through pipe
Base is fixedly connected with pedestal is connect.
Preferably, the particulate matter cut point of the sampling cutter main body 1 is between 0.1 μm to 80 μm.It is furthermore preferred that
The particulate matter cut point of the sampling cutter main body is between 0.5 μm to 10 μm.
Compared with prior art, the beneficial effects of the present invention are:
The structure of cutter is simple, and volume has micromation, can be applied in portable or on-line sampling device；It is cutting
When device works, the sample gas taken is entered in separation chamber by inlet attack, and inner section product in separation chamber's increases, and sample gas velocity reduces,
Bulky grain oil droplet strikes hydrophobic edible vegetable oil adsorbent surface and is adsorbed under effect of inertia in sample gas, and little particle continues with air-flow
Movement leaves separation chamber without being adsorbed finally by pagoda pipe fitting, to complete cutting function.It is cut by particulate matter, it can
Enhance the accuracy of detection, and be connected together by entrance plug and outlet plug with cutter main body, to cutter
When maintenance, cutter can be completed to dismantle and replace without using in the case where tool.
Detailed description of the invention
Attached drawing is used to provide further understanding of the present invention, and constitutes part of specification, with reality of the invention
It applies example to be used to explain the present invention together, not be construed as limiting the invention.In the accompanying drawings:
Fig. 1 is the structural diagram of the present invention；
Fig. 2 is the A- sectional view in the present invention；
Fig. 3 is the connection type figure of the first protrusion and the first Button Block in the present invention；
Fig. 4 is the connection type figure of the second protrusion and the second Button Block in the present invention；
Fig. 5 is the structural schematic diagram of sampling gun in the present invention；
In figure: 1, cutter main body；2, inlet attack；3, entrance plug；4, pagoda pipe fitting；5, plug is exported；6,
One protrusion；7, separation chamber；8, the first Button Block；9, the second protrusion；10, the second Button Block；11, hydrophobic oil suction adsorbent；12, first is close
Packing；13, the second gasket；14, sampling pipe main body；141, ozzle；142, tube body；143, Guan Ji；15, pedestal is connected.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Embodiment 1
Please refer to Fig. 1-4, the present invention is the following technical schemes are provided: a kind of sampling cutter, including cutter main body 1, cuts
The inside of cutter main body 1 is equipped with separation chamber 7, and the side of separation chamber 7 is fixedly connected with the first Button Block 8, and the other side of separation chamber 7 is solid
Surely it is connected with the second Button Block 10, the side of cutter main body 1 is equipped with entrance plug 3, and the side of entrance plug 3 is far from cutter master
The side of body 1 is equipped with inlet attack 2, and inlet attack 2 runs through entrance plug 3, and the side of entrance plug 3 is far from inlet attack 2
Side has the first protrusion 6, and the side of cutter main body 1 is equipped with outlet plug 5 far from the side of entrance plug 3, exports plug 5
Side far from cutter main body 1 side be equipped with pagoda pipe fitting 4, pagoda pipe fitting 4 through outlet plug 5, export plug 5
Side there is the second protrusion 9 far from the side of pagoda pipe fitting 4, the inside of separation chamber 7 is equipped with hydrophobic oil suction adsorbent 11.
In the present embodiment: cutter main body 1 can be sealed the detection gas extracted by inlet attack 2, dredge
Water oil suction adsorbent 11 can efficiently separate out steam and capture absorption, and olesome and smaller mesh under test gas
Mark test particle can pass through adsorbent and unaffected, since hydrophobic oil suction adsorbent 11 can be replaced, in hydrophobic suction
Oily adsorbent 11 can be replaced after completing a duty cycle (absorption full water), in this way, can reduce the consumptive material of detection at
This, the core of original cutter is and multilayer to be needed to collide on the impingement plate for being coated with vaseline, could complete particle and cut
Movement, and this cutter is that impingement plate is replaced with hydrophobic oil suction adsorbent 11, reduces the difficulty of processing of device in addition, using this
The cutter of structure can obtain higher cost performance, and in cutter work, the gas taken is entered by inlet attack 2 to be divided
From in room 7, the bulky grain oil droplet in gas is stopped by the hydrophobic oil suction adsorbent 11 in separation chamber 7, reduces gas
Bulky grain oil droplet content in sample, leaves separation chamber 7 finally by pagoda pipe fitting 4, by isolating under test gas
Bulky grain oil droplet, enhances the accuracy of detection, and entrance plug 3 engages company with separation chamber 7 by the first protrusion 6 and the first Button Block 8
It connects, outlet plug 5 is connected together by the second protrusion 9 and the second Button Block 10 with separation chamber 7, and entrance plug 3 and outlet can be made
Plug 5 can block the both ends of cutter main body 1, be engaged by entrance plug 3 and outlet plug 5 with cutter main body 1
Connection can be completed to dismantle and replace without using in the case where tool when safeguarding cutter to cutter.
Specifically, entrance plug 3 and separation chamber 7 are connected together by the first protrusion 6 and the first Button Block 8；Entrance plug 3 is logical
It crosses the first protrusion 6 and the first Button Block 8 is connected together with separation chamber 7, entrance plug 3 can be made to be connected together with cutter main body 1,
When being safeguarded to cutter, dismantle more convenient.
Specifically, outlet plug 5 and separation chamber 7 are connected together by the second protrusion 9 and the second Button Block 10；Export plug 5
It is connected together by the second protrusion 9 and the second Button Block 10 with separation chamber 7, outlet plug 5 can be made to engage company with cutter main body 1
It connects, when being safeguarded to cutter, dismantles more convenient.
Specifically, the inner sidewall of the first Button Block 8 is fixedly connected with the first gasket 12, it is located at the first protrusion 6 and the first button
The junction of seat 8；By the way that the first gasket 12 is arranged, the frictional force between the first protrusion 6 and the first Button Block 8 can be increased, increased
Add the fixed effect between the first protrusion 6 and the first Button Block 8.
Specifically, the inner sidewall of the second Button Block 10 is fixedly connected with the second gasket 13, it is located at the second protrusion 9 and the second button
The junction of seat 10；By the second gasket 13 of setting, the frictional force between the second protrusion 9 and the second Button Block 10 can be increased,
Increase the fixed effect between the second protrusion 9 and the second Button Block 10.
Specifically, a length of 100 millimeters of cutter main body 1, width is 30 millimeters；Cutter overall dimension accomplishes 30*
100mm, comparing, other cutter volumes are smaller, and weight is lighter, facilitate device miniaturization, and assembly is more convenient, is produced into
This is lower.Specifically, the sampling gun includes sampling pipe main body 14, sampling pipe main body 14 includes ozzle 141, tube body 142, Guan Ji
143；142 side of tube body offers ozzle 141, and the tube body 142 is fixedly connected with pipe far from the side of the ozzle 141
Base 143；The sampling pipe main body 14 is fixedly connected by pipe base 143 with pedestal 15 is connect.The sampling pipe main body 14 is straight type.
The sampling gun structure is simple, easy to produce and process.
Specifically, the particulate matter cut point of the sampling cutter main body 1 is between 0.1 μm to 80 μm.More specifically,
The particulate matter cut point of the sampling cutter main body 1 is between 0.5 μm to 10 μm.The characteristics of due to pollutants from cooking fume, such as
Two class particulate matter of oil smoke need to be cut, cut point selection any point between 0.1 μm and 80 μm, cutting effect is substantially
Indifference, therefore the restriction of cutter matched air pump constant speed feature is just significantly relaxed --- in extremely wide speed of exhaust model
In enclosing, cutter can collect true oil smoke fine particle sample.
The working principle of the invention and process for using: in cutter work, the gas taken is entered by inlet attack 2
In the separation chamber 7 of cutter main body 1, by the hydrophobic oil suction adsorbent 11 in separation chamber 7 to the bulky grain oil in gas sampled
Drop is adsorbed, and is reduced the bulky grain oil droplet content in gaseous sample, is left separation chamber 7 finally by pagoda pipe fitting 4, tieing up
When protecting cutter, entrance plug 3 is pulled, so that the first protrusion 6 on entrance plug 3 is detached from the first Button Block 8, then pull outlet plug
5, make to export the second protrusion 9 on plug 5 and be detached from the second Button Block 10, the disassembly to cutter is completed, to carry out to cutter
Maintenance, the first gasket 12 can increase the first protrusion 6 and the first frictional force between Button Block 8, increase the first protrusion 6 and the
Fixed effect between one Button Block 8, the second gasket 13 can increase the frictional force between the second protrusion 9 and the second Button Block 10,
Increase the fixed effect between the second protrusion 9 and the second Button Block 10.
Finally, it should be noted that the foregoing is only a preferred embodiment of the present invention, it is not intended to restrict the invention,
Although the present invention is described in detail referring to the foregoing embodiments, for those skilled in the art, still may be used
To modify the technical solutions described in the foregoing embodiments or equivalent replacement of some of the technical features.
All within the spirits and principles of the present invention, any modification, equivalent replacement, improvement and so on should be included in of the invention
Within protection scope.
Claims (10)
1. a kind of sampling cutter, it is characterised in that: including cutter main body (1), the inside of the cutter main body (1) is equipped with
The side of separation chamber (7), the separation chamber (7) is fixedly connected with the first Button Block (8), and the other side of the separation chamber (7) is fixed
It being connected with the second Button Block (10), the side of the cutter main body (1) is equipped with entrance plug (3), and the one of the entrance plug (3)
Side is equipped with inlet attack (2) far from the side of the cutter main body (1), and the inlet attack (2) runs through the entrance plug
(3), the side of the entrance plug (3) has first raised (6), the cutter far from the side of the inlet attack (2)
The side of main body (1) is equipped with outlet plug (5) far from the side of the entrance plug (3), and the side of outlet plug (5) is remote
Side from the cutter main body (1) is equipped with pagoda pipe fitting (4), and the pagoda pipe fitting (4) runs through the outlet plug
(5), the side of outlet plug (5) has second raised (9), the separation far from the side of the pagoda pipe fitting (4)
The inside of room (7) is equipped with hydrophobic oil suction adsorbent (11).
2. a kind of sampling cutter according to claim 1, it is characterised in that: the entrance plug (3) and the separation
Room (7) is connected together by described first raised (6) and first Button Block (8).
3. a kind of sampling cutter according to claim 1, it is characterised in that: the outlet plug (5) and the separation
Room (7) is connected together by described second raised (9) and second Button Block (10).
4. a kind of sampling cutter according to claim 1, it is characterised in that: the inner sidewall of first Button Block (8) is solid
Surely the first gasket (12) are connected with, the junction of the described first raised (6) and first Button Block (8) is located at.
5. a kind of sampling cutter according to claim 1, it is characterised in that: the inner sidewall of second Button Block (10) is solid
Surely the second gasket (13) are connected with, the junction of the described second raised (9) and second Button Block (10) is located at.
6. a kind of sampling cutter according to claim 1, it is characterised in that: a length of the 100 of the cutter main body (1)
Millimeter, width are 30 millimeters.
7. a kind of sampling cutter according to claim 1, it is characterised in that: the entrance connects in cutter main body (1)
Head (2) is connected with sampling gun.
8. a kind of sampling cutter according to claim 7, it is characterised in that: the sampling gun includes sampling pipe main body
(14), sampling pipe main body (14) includes ozzle (141), tube body (142), Guan Ji (143)；Tube body (142) side offers
Ozzle (141), the tube body (142) are fixedly connected with Guan Ji (143) far from the side of the ozzle (141)；The sampling pipe
Main body (14) is fixedly connected by Guan Ji (143) with pedestal (15) is connect.
9. a kind of sampling cutter described in -8 according to claim 1, it is characterised in that: the sampling cutter main body (1)
Particulate matter cut point is between 0.1 μm to 80 μm.
10. a kind of sampling cutter according to claim 9, it is characterised in that: of the sampling cutter main body (1)
Grain object cut point is between 0.5 μm to 10 μm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910181766.7A CN109916678A (en) | 2019-03-11 | 2019-03-11 | A kind of sampling cutter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910181766.7A CN109916678A (en) | 2019-03-11 | 2019-03-11 | A kind of sampling cutter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109916678A true CN109916678A (en) | 2019-06-21 |
Family
ID=66964186
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910181766.7A Pending CN109916678A (en) | 2019-03-11 | 2019-03-11 | A kind of sampling cutter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109916678A (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4718288A (en) * | 1984-05-04 | 1988-01-12 | Leschonski K | Method and an apparatus for splitting samples of powders and suspensions |
| CN102798553A (en) * | 2011-05-23 | 2012-11-28 | 佛山市环保技术与装备研发专业中心 | PM2.5 (Particular Matter 2.5) single-grade atmosphere sampling cutter |
| CN102944449A (en) * | 2012-11-21 | 2013-02-27 | 环境保护部南京环境科学研究所 | Passive sampling device of multi-component atmospheric organic pollutants |
| GB201414291D0 (en) * | 2014-08-12 | 2014-09-24 | Tech Electronics Ltd C | Air sampling apparatus |
| US20150177187A1 (en) * | 2012-07-26 | 2015-06-25 | Eth Zurich | Oil removal from a stream of oil-separated sample droplets |
| CN204479367U (en) * | 2015-03-17 | 2015-07-15 | 天津市环境监测中心 | The sampling apparatus of fine particle in the low dust concentration flue gas of a kind of stationary source |
| CN205015199U (en) * | 2015-09-28 | 2016-02-03 | 青岛和诚环保科技有限公司 | Air particulate matter sample thief cutterbar fast loading and unloading mechanism |
| CN107036859A (en) * | 2016-12-22 | 2017-08-11 | 杭州克霾环保科技有限公司 | Multistage particulate matter cutter |
| CN107436278A (en) * | 2017-08-28 | 2017-12-05 | 太原海纳辰科仪器仪表有限公司 | Multichannel flow dividing structure sampler |
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-
2019
- 2019-03-11 CN CN201910181766.7A patent/CN109916678A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4718288A (en) * | 1984-05-04 | 1988-01-12 | Leschonski K | Method and an apparatus for splitting samples of powders and suspensions |
| CN102798553A (en) * | 2011-05-23 | 2012-11-28 | 佛山市环保技术与装备研发专业中心 | PM2.5 (Particular Matter 2.5) single-grade atmosphere sampling cutter |
| US20150177187A1 (en) * | 2012-07-26 | 2015-06-25 | Eth Zurich | Oil removal from a stream of oil-separated sample droplets |
| CN102944449A (en) * | 2012-11-21 | 2013-02-27 | 环境保护部南京环境科学研究所 | Passive sampling device of multi-component atmospheric organic pollutants |
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| CN205015199U (en) * | 2015-09-28 | 2016-02-03 | 青岛和诚环保科技有限公司 | Air particulate matter sample thief cutterbar fast loading and unloading mechanism |
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| CN107436278A (en) * | 2017-08-28 | 2017-12-05 | 太原海纳辰科仪器仪表有限公司 | Multichannel flow dividing structure sampler |
| CN213121281U (en) * | 2019-03-11 | 2021-05-04 | 成都智胜欣业环保科技有限公司 | Sampling cutter |
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| Title |
|---|
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Application publication date: 20190621 |