CN201561886U - Passive sampler in VOCs (Volatile Organic Compounds) monitoring system - Google Patents
Passive sampler in VOCs (Volatile Organic Compounds) monitoring system Download PDFInfo
- Publication number
- CN201561886U CN201561886U CN2009202604509U CN200920260450U CN201561886U CN 201561886 U CN201561886 U CN 201561886U CN 2009202604509 U CN2009202604509 U CN 2009202604509U CN 200920260450 U CN200920260450 U CN 200920260450U CN 201561886 U CN201561886 U CN 201561886U
- Authority
- CN
- China
- Prior art keywords
- sponge
- sampling thief
- vocs
- monitoring system
- sampler
- 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.)
- Expired - Fee Related
Links
Landscapes
- Sampling And Sample Adjustment (AREA)
Abstract
The utility model discloses a passive sampler in a VOCs (Volatile Organic Compounds) monitoring system, comprising a bottle body, a bottle cover, a sampler, an upper sponge and a lower sponge, wherein the upper sponge and the lower sponge are arranged in the bottle body and are used for fixing the sampler, the sampler comprises an upper filter which is partly embedded in the upper sponge, a lower filter which is partly embedded in the lower sponge and a hollow medium cylinder used for communicating with the upper filter and the lower filter, and an absorption medium with the adsorption force is filled in the hollow medium cylinder. The passive sampler has the advantages of light weight, small volume, no power supply, convenient operation, safety, reliability, cheap price, no noise, no need of a person to operate and maintain on a site, capability of being suitable for various environments (including indoor environment, outdoor environment and personal contact VOC environment), and the like.
Description
Technical field
The utility model relates to a kind of gas sampling assembly, especially relates to a kind of passive type sampling thief that detects in atmosphere in the VOCs monitoring system of using in the volatile organic compounds sampling of (Volatile Organic Compounds is called for short VOCs).
Background technology
VOCs is meant that boiling spread saturated vapor pressure under 50 ℃-260 ℃, room temperature surpasses the compound of 133.322Pa.VOCs can be further divided into by its chemical constitution: alkanes, aromatic hydrocarbons, ester class, aldehydes and other etc.What identified at present has a kind more than 300.Modal have benzene,toluene,xylene, styrene, triclene, methenyl choloride, trichloroethanes, diisocyanate (TDI), two isocyanide toluene esters etc.This compounds is prevalent in the indoor-outdoor air, is playing the part of important role in the generation of Tropospheric ozone increase and other oxygenants, and it can also directly produce secondary pollutions such as organic gasoloid.The more important thing is some compounds such as benzene, 1 in the VOCs composition, the 3-butadiene has potential carcinogenesis, therefore the existence of VOCs, source, the regularity of distribution, migration transform and health effects are subject to people's attention always in the research environment, and become the emphasis of domestic and international research.The VOCs complicated component, content is atomic, and setting up simple and reliable VOCs sampling and on-line monitoring method is to realize the necessary means of this research.
Most widely used VOCs sampling instrument is airbag sampling, the sampling of stainless cylinder of steel, adsorbent sampling and low temperature sampling at present.Sample pretreating method has solvent analytical method, solid-phase microextraction method, low temperature pre-concentration one hot analytical method etc.Sample analysis method has: vapor-phase chromatography, high performance liquid chromatography, gas chromatography-mass spectrography, fluorescence spectrophotometry, film import mass spectroscopy etc.Atmosphere VOC monitoring main method has initiatively sampling method (power sampling and Direct Sampling) and passive sampling method, and the selection of the instrument of sampling can influence the accuracy of sample, in the time of again even can determine the reliability of whole monitoring result.
Summary of the invention
Based on the problems referred to above, it is a kind of in light weight that order of the present utility model is to provide, and volume is little, without power supply, easy and simple to handle, safe and reliable, low price, noiselessness does not need people's execute-in-place to safeguard, is suitable for the passive type sampling thief in the various environment VOCs monitoring systems.
The utility model is to realize by following technical measures, passive type sampling thief in a kind of VOCs monitoring system, comprise bottle, bottle cap, sampling thief, tender sponge down in the Shanghai of bottle internal fixation sampling thief, wherein: described sampling thief comprises last filtrator and the following filtrator that is partially submerged into the tender sponge down in Shanghai, and be communicated with the hollow medium tube of going up filtrator and following filtrator, the absorbing medium of tool absorption affinity is housed in the described hollow medium tube.
In order to make sampling thief have adsorption function preferably, in the above-mentioned hollow medium tube activated carbon granule is housed preferably, the preferred 0.4-0.8mm of activated carbon granule granularity.
The preferred 45mmx32mmx22mm of above-mentioned sampling thief specification.
Because the utility model is to utilize gas molecule diffusion or penetration theory to gather a kind of sampling instrument of VOCs in the air.Open and treat that sampled air enters in the static diffusion chamber between sampling thief and the bottle by last sponge behind the bottle cap, last sponge can stop bigger wind speed and avoid forming eddy current in diffusion chamber, to guarantee that the gaseous diffusion in diffusion chamber is in a kind of static molecular diffusion state, the volatile organic contaminant molecule diffuses in the hollow medium tube of the absorbing medium that the tool absorption affinity is housed from the filtrator at two ends, and collect on the absorbing medium, at this moment volatile organic contaminant carries out mass transport process by Fick law in diffusion chamber, the volatile organic contaminant molecule spreads to the middle part by two ends, is absorbed medium along diffusion length and absorbs.Therefore the utlity model has in light weight, volume is little, without power supply, easy and simple to handle, safe and reliable, low price, noiselessness, do not need people's execute-in-place to safeguard and can be suitable for various environment (indoor and outdoor, individual contact VOC) advantage such as, so can be with solving because of with a varied topography, can't power the problem brought of sampling, and can reduce the environmental monitoring cost.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Embodiment
Below in conjunction with embodiment and contrast accompanying drawing the utility model is described in further detail.
Passive type sampling thief in a kind of VOCs monitoring system, comprise glass bottle 5, bottle cap 1, sampling thief 3, sponge 2 and following sponge 4 on glass bottle 5 internal fixation sampling thiefs 3, described sampling thief 3 comprises last filtrator 301 and the following filtrator 304 that is partially submerged into sponge 2 and following sponge 4, and be communicated with the hollow medium tube 302 of going up filtrator 301 and following filtrator 304, the activated carbon granule 303 of tool absorption affinity is housed in the described hollow medium tube 302.
Wherein sampling thief 3 specifications are about 45mmx32mmx22mm, the about 10g of general assembly (TW), activated carbon granule 303 about 40mg, granularity are 0.4-0.8mm, and the utility model suitable environment is that temperature is that 0-40 ℃, relative humidity are that 5%-80%, pressure are below the 1050hPa.
Because the utility model is to utilize gas molecule diffusion or penetration theory to gather a kind of sampling instrument of VOCs in the air, open and treat that sampled air enters in the static diffusion chamber between sampling thief 3 and the glass bottle 5 by last sponge 2 behind the bottle cap 1, last sponge 2 can stop bigger wind speed and avoid forming eddy current in diffusion chamber, to guarantee that the gaseous diffusion in diffusion chamber is in a kind of static molecular diffusion state, the volatile organic contaminant molecule diffuses in the hollow medium tube 302 that activated carbon granule 303 is housed from the last filtrator 301 and the following filtrator 304 at two ends, and collect on the activated carbon granule 303, at this moment volatile organic contaminant carries out mass transport process by Fick law in diffusion chamber, the volatile organic contaminant molecule spreads to the middle part by two ends, is absorbed by activated carbon granule 303 along diffusion length.
The foregoing description is the utility model preferred implementation; but embodiment of the present utility model is not restricted to the described embodiments; other any do not deviate from change, the modification done under the utility model principle, substitutes, combination, simplify; all should be the substitute mode of equivalence, be included within the protection domain of the present utility model.
Claims (4)
1. the passive type sampling thief in the VOCs monitoring system is characterized in that: comprise bottle, bottle cap, sampling thief, in the Shanghai of bottle internal fixation sampling thief tender sponge down, wherein:
Described sampling thief comprises last filtrator and the following filtrator that is partially submerged into the tender sponge down in Shanghai, and is communicated with the hollow medium tube of going up filtrator and following filtrator, and the absorbing medium of tool absorption affinity is housed in the described hollow medium tube.
2. the passive type sampling thief in the VOCs monitoring system according to claim 1 is characterized in that: in the described hollow medium tube activated carbon granule is housed preferably.
3. the passive type sampling thief in the VOCs monitoring system according to claim 2 is characterized in that: the preferred 0.4-0.8mm of described activated carbon granule granularity.
4. the passive type sampling thief in the VOCs monitoring system according to claim 1 is characterized in that: the preferred 45mm * 32mm of described sampling thief specification * 22mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202604509U CN201561886U (en) | 2009-11-13 | 2009-11-13 | Passive sampler in VOCs (Volatile Organic Compounds) monitoring system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202604509U CN201561886U (en) | 2009-11-13 | 2009-11-13 | Passive sampler in VOCs (Volatile Organic Compounds) monitoring system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201561886U true CN201561886U (en) | 2010-08-25 |
Family
ID=42627034
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202604509U Expired - Fee Related CN201561886U (en) | 2009-11-13 | 2009-11-13 | Passive sampler in VOCs (Volatile Organic Compounds) monitoring system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201561886U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102353561A (en) * | 2011-06-22 | 2012-02-15 | 深圳市建筑科学研究院有限公司 | Semi-passive air sampler |
| CN102680284A (en) * | 2012-05-29 | 2012-09-19 | 大连交通大学 | Passive sampling device for persistent organic pollutants (POPs) in air |
| 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 |
| CN104181012A (en) * | 2014-08-25 | 2014-12-03 | 深圳市建筑科学研究院股份有限公司 | Air sampler |
| CN106908284A (en) * | 2017-03-27 | 2017-06-30 | 中国安全生产科学研究院 | A kind of pump-free type samplers gathered for benzene in air, toluene |
| CN109632402A (en) * | 2019-01-23 | 2019-04-16 | 大连理工大学 | A kind of novel thermal desorption adsorption tube |
| CN112254002A (en) * | 2020-10-20 | 2021-01-22 | 山东朗晖石油化学股份有限公司 | Chloroethylene monomer tank car sampling VOC control and treatment system |
-
2009
- 2009-11-13 CN CN2009202604509U patent/CN201561886U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102353561A (en) * | 2011-06-22 | 2012-02-15 | 深圳市建筑科学研究院有限公司 | Semi-passive air sampler |
| CN102353561B (en) * | 2011-06-22 | 2014-08-13 | 深圳市建筑科学研究院有限公司 | Semi-passive air sampler |
| CN102680284A (en) * | 2012-05-29 | 2012-09-19 | 大连交通大学 | Passive sampling device for persistent organic pollutants (POPs) in air |
| 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 |
| CN104181012A (en) * | 2014-08-25 | 2014-12-03 | 深圳市建筑科学研究院股份有限公司 | Air sampler |
| CN106908284A (en) * | 2017-03-27 | 2017-06-30 | 中国安全生产科学研究院 | A kind of pump-free type samplers gathered for benzene in air, toluene |
| CN109632402A (en) * | 2019-01-23 | 2019-04-16 | 大连理工大学 | A kind of novel thermal desorption adsorption tube |
| CN112254002A (en) * | 2020-10-20 | 2021-01-22 | 山东朗晖石油化学股份有限公司 | Chloroethylene monomer tank car sampling VOC control and treatment system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201561886U (en) | Passive sampler in VOCs (Volatile Organic Compounds) monitoring system | |
| Li et al. | Effects of activated carbon surface properties on the adsorption of volatile organic compounds | |
| Kumar et al. | Volatile organic compounds: sampling methods and their worldwide profile in ambient air | |
| Koziel et al. | Field sampling and determination of formaldehyde in indoor air with solid-phase microextraction and on-fiber derivatization | |
| Peltonen et al. | Air sampling and analysis of polycyclic aromatic hydrocarbons | |
| Eom et al. | Development and application of needle trap devices | |
| Guo et al. | Dynamic and thermodynamic mechanisms of TFA adsorption by particulate matter | |
| Huang et al. | Recent advances in passive air sampling of volatile organic compounds | |
| Azari et al. | A novel needle trap device with nanoporous silica aerogel packed for sampling and analysis of volatile aldehyde compounds in air | |
| Nocun et al. | Determination of selected oxygenated polycyclic aromatic hydrocarbons (oxy-PAHs) in diesel and air particulate matter standard reference materials (SRMs) | |
| Strandberg et al. | Evaluation of two types of diffusive samplers and adsorbents for measuring 1, 3-butadiene and benzene in air | |
| Martin et al. | Studies using the sorbent Carbopack X for measuring environmental benzene with Perkin–Elmer-type pumped and diffusive samplers | |
| CN104437375A (en) | Preparation method of adsorbent material as well as analytical method | |
| Gallego et al. | Development of a method for determination of VOCs (including methylsiloxanes) in biogas by TD-GC/MS analysis using Supel™ inert film bags and multisorbent bed tubes | |
| Wang et al. | Influence of sampling methods and storage condition on volatile methyl siloxanes quantification in biogas | |
| CN109632402A (en) | A kind of novel thermal desorption adsorption tube | |
| Luo et al. | Biofilters for controlling animal rendering odour-a pilot-scale study | |
| CN101337178A (en) | Development of novel absorbent in adsorption heat desorption pipe | |
| Vallecillos et al. | Passive sampling to control air quality in schools: uptake rate determination and application | |
| Lamaa et al. | Evaluation of adsorbents for volatile methyl siloxanes sampling based on the determination of their breakthrough volume | |
| Khan et al. | Volatile organic compound analysis by sorbent tube-thermal desorption-gas chromatography: A review | |
| Ueta et al. | Polydimethylsiloxane‐coated partitioning sample collection device for the precise quantification of polycyclic aromatic hydrocarbons in air | |
| Chen et al. | Fullerenes-extracted soot: a new adsorbent for collecting volatile organic compounds in ambient air | |
| CN103041615B (en) | Method for preparing xerogel fixed ligand polymer micro-extraction membrane device | |
| Liu et al. | Multi-layer cartridges filled with multi-walled carbon nanotubes for the determination of volatile organic compounds in indoor air |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100825 Termination date: 20181113 |