CN201233339Y - Sampling apparatus for atmospheric particulate matter - Google Patents
Sampling apparatus for atmospheric particulate matter Download PDFInfo
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- CN201233339Y CN201233339Y CNU200820151371XU CN200820151371U CN201233339Y CN 201233339 Y CN201233339 Y CN 201233339Y CN U200820151371X U CNU200820151371X U CN U200820151371XU CN 200820151371 U CN200820151371 U CN 200820151371U CN 201233339 Y CN201233339 Y CN 201233339Y
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- sampling
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- flowmeter
- air valve
- rate meter
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Abstract
The utility model relates to an Atmospheric particulates sampling device, which comprises a sampling instrument and a pumping pump, and is characterized in that the sampling device also comprises a flow-rate meter A, a flow-rate meter B and an automatic adjusting air valve which are externally connected; the sampling instrument, the flow-rate meters, the automatic adjusting air valve and the pumping pump are serially connected with each other; the sampling instrument is connected with the flow-rate meter A, and the other end of the flow-rate meter A is connected with the automatic adjusting air valve, and the other end of the automatic adjusting air valve is connected with the flow-rate meter B, and the other end of the flow-rate meter B is connected with the pumping pump. With the sampling device, the air flow rate is stable during the sampling process, thereby remarkably improving the sampling quality.
Description
Technical field
The utility model relates to the air monitoring technology, is specifically related to a kind of Atmospheric particulates sampling apparatus.
Background technology
Atmospheric particulates have become the primary pollutant of China's city atmospheric environment, because the component of Atmospheric particulates and source are complicated unusually, the research of Atmospheric particulates has become the focus and the difficult point of atmospheric environment scientific research.In the process to Atmospheric particulates research, the collection of particle is the most basic and one of most important work.
Existing acquisition method to particle is: the sampling instrument of aerodynamically principle design is directly linked to each other with aspiration pump, utilize the sampling of aspiration pump connection different size, gather the atmospheric aerosol samples of different-grain diameter under constant flow; Wherein flow is controlled by the flowmeter in the sampling instrument.But in the process of actual samples, find, because the variation of air-flow, the flowmeter that sampling process is used can run into the phenomenon of job insecurity, show that mainly the buoy (also claiming rotor) in the flowmeter significantly rises and descends (when airshed increases in the sampling instrument; buoy can rise, otherwise buoy just descends); thus cause the particle diameter of the particle of collection to change, influence the sampling quality of Atmospheric particulates.Causing the rotor factors of instability is to act on epitrochanterian three power (fluid is to dynamic pressure, the buoyancy of rotor in fluid and the gravity of rotor self of rotor) not arrive equilibrium state, for example gather in the process of different-grain diameter Atmospheric particulates, just find that the unsettled phenomenon of buoy exists in its flowmeter at the MOUDI110 sampling instrument that uses U.S. MSP company to produce.Therefore, how making airshed keep stable in sampling, is the prerequisite that guarantees the sampling work precision.
The utility model content:
The purpose of this utility model provide a kind of in the Atmospheric particulates sampling process the relative more stable sampling apparatus of airshed, to improve sampling quality.
The technical solution of the utility model is:
A kind of Atmospheric particulates sampling apparatus comprises sampling instrument, aspiration pump, it is characterized in that also comprising external flowmeter first, flowmeter second and regulates air valve automatically; Described sampling instrument, flowmeter, regulate air valve automatically, aspiration pump is connected in series, it is sampling instrument connection traffic meter first in proper order, the other end of flowmeter first connects regulates air valve automatically, the other end connection traffic meter second of regulating air valve automatically, and the other end of flowmeter second connects aspiration pump.
The effect of flowmeter first is the air-flow that buffering is come out from sampling instrument, and the effect of flowmeter second is the flow that is provided with in the demonstration work, and the automatic adjusting air valve that is provided with between these two flowmeters plays regime flow.
The Atmospheric particulates sampling apparatus that uses the utility model to provide, airshed is stable in sampling process, and sampling quality obviously improves.
Description of drawings
Fig. 1 is a structure principle chart of the present utility model.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail.
As shown in Figure 1, the utility model by sampling instrument 1, flowmeter first 2, regulate air valve 3, flowmeter second 4 and aspiration pump 5 automatically and form; The method of attachment of each parts is in the device: the sampling instrument 1 flowmeter first 2 that is connected in series, the other end of flowmeter first 2 is connected in series and regulates air valve 3 automatically, automatically the other end of the regulating air valve 3 flowmeter second 4 that is connected in series, the other end of flowmeter second 4 aspiration pump 5 that is connected in series.
Claims (1)
1. an Atmospheric particulates sampling apparatus comprises sampling instrument, aspiration pump, it is characterized in that also comprising external flowmeter first, flowmeter second and regulates air valve automatically; Described sampling instrument, flowmeter, regulate air valve automatically, aspiration pump is connected in series, it is sampling instrument connection traffic meter first in proper order, the other end of flowmeter first connects regulates air valve automatically, the other end connection traffic meter second of regulating air valve automatically, and the other end of flowmeter second connects aspiration pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200820151371XU CN201233339Y (en) | 2008-07-29 | 2008-07-29 | Sampling apparatus for atmospheric particulate matter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200820151371XU CN201233339Y (en) | 2008-07-29 | 2008-07-29 | Sampling apparatus for atmospheric particulate matter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201233339Y true CN201233339Y (en) | 2009-05-06 |
Family
ID=40619721
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU200820151371XU Expired - Fee Related CN201233339Y (en) | 2008-07-29 | 2008-07-29 | Sampling apparatus for atmospheric particulate matter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201233339Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102062706A (en) * | 2010-12-22 | 2011-05-18 | 北京大学 | Passive sampling device for atmospheric particulates |
| CN101738452B (en) * | 2009-12-22 | 2013-04-03 | 上海大学 | Simulation reaction device for air allergenic pollen exposing in atmospheric pollutants |
| CN104237465A (en) * | 2014-09-10 | 2014-12-24 | 青岛海纳光电环保有限公司 | Air pollutant source apportionment sampling system and air pollutant source apportionment sampling method |
| CN104280267A (en) * | 2014-09-03 | 2015-01-14 | 上海大学 | Fire coal emission particulate matter sampling system and fire coal emission particulate matter analysis method |
| CN104458358A (en) * | 2014-11-28 | 2015-03-25 | 中国地质科学院水文地质环境地质研究所 | Device and method for extracting PM2.5 component from loose particulate matters |
| CN104931296A (en) * | 2015-06-16 | 2015-09-23 | 国网天津市电力公司 | Device used for preventing inverse suction during particle concentration sampling |
-
2008
- 2008-07-29 CN CNU200820151371XU patent/CN201233339Y/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101738452B (en) * | 2009-12-22 | 2013-04-03 | 上海大学 | Simulation reaction device for air allergenic pollen exposing in atmospheric pollutants |
| CN102062706A (en) * | 2010-12-22 | 2011-05-18 | 北京大学 | Passive sampling device for atmospheric particulates |
| CN102062706B (en) * | 2010-12-22 | 2012-07-04 | 北京大学 | Passive sampling device for atmospheric particulates |
| CN104280267A (en) * | 2014-09-03 | 2015-01-14 | 上海大学 | Fire coal emission particulate matter sampling system and fire coal emission particulate matter analysis method |
| CN104237465A (en) * | 2014-09-10 | 2014-12-24 | 青岛海纳光电环保有限公司 | Air pollutant source apportionment sampling system and air pollutant source apportionment sampling method |
| CN104237465B (en) * | 2014-09-10 | 2016-01-20 | 青岛海纳光电环保有限公司 | Air pollutants source resolution sampling system and method |
| CN104458358A (en) * | 2014-11-28 | 2015-03-25 | 中国地质科学院水文地质环境地质研究所 | Device and method for extracting PM2.5 component from loose particulate matters |
| CN104931296A (en) * | 2015-06-16 | 2015-09-23 | 国网天津市电力公司 | Device used for preventing inverse suction during particle concentration sampling |
| CN104931296B (en) * | 2015-06-16 | 2017-12-12 | 国网天津市电力公司 | For preventing particle concentration from the device of suck-back phenomenon occurring in sampling |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090506 Termination date: 20110729 |