CN102607912B - Experiment cabin for preparing standard air samples - Google Patents
Experiment cabin for preparing standard air samples Download PDFInfo
- Publication number
- CN102607912B CN102607912B CN201210056473.4A CN201210056473A CN102607912B CN 102607912 B CN102607912 B CN 102607912B CN 201210056473 A CN201210056473 A CN 201210056473A CN 102607912 B CN102607912 B CN 102607912B
- Authority
- CN
- China
- Prior art keywords
- main cabin
- cabin body
- gas
- controller
- production standard
- 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
Images
Landscapes
- Sampling And Sample Adjustment (AREA)
Abstract
The invention discloses an experiment cabin for preparing standard air samples, which is used for mixing particulate matters with clean air to form the standard air samples with exact concentrations. The experiment cabin comprises an air source, air pipes, a main cabin body, a first blowing device and a second blowing device, wherein the air source is communicated with the main cabin body by the air pipes; feeding holes for the particulate matters to enter are arranged on the upper end face of the main cabin body; air inlet nozzles communicated with the main cabin body are arranged on the side walls of the main cabin body; the first blowing device is communicated with the main cabin body by the feeding holes and blows the particulate matters into the main cabin body; and the second blowing device is communicated with the main cabin body by the air inlet nozzles and blows air into the main cabin body so that the particulate matters are mixed with the air provided by the air source in the main cabin body to form the standard air samples with exact concentrations for a cutter to be calibrated to sample. The experiment cabin has high precision and high performance.
Description
Technical field
The present invention relates to a kind of cutter for particles field, relate in particular to the experiment storehouse of a kind of high precision, dynamical production standard gaseous sample.
Background technology
Along with industrial development, environment for human survival is destroyed, and the situation is tense for its Air Contamination, and airborne suspended particulate substance can cause haze weather.
Weather scientist and medical expert think, the haze weather being caused by fine particle is even larger than sandstorm to the harm of health.10 microns of above particles of particle diameter, can be blocked in outside people's nose; The particle of particle diameter between 2.5 microns to 10 microns, can enter the upper respiratory tract, but part can excrete by sputum etc., also can be stopped by the fine hair of nasal cavity inside in addition, relatively little to human health damage; And particle diameter is at the fine particle below 2.5 microns, diameter is equivalent to human hair's 1/10 size, is difficult for being blocked.After being inhaled into human body, can directly enter bronchus, disturb the gas exchange of lung, cause the disease that comprises the aspects such as asthma, bronchitis and cardiovascular disease.
Atmospheric aerosol is content component seldom in earth atmosphere composition, but it all has material impact to chemical reaction of the radiation balance of air quality, visibility, acid deposition, cloud and precipitation, atmosphere (and then to Global climate change), stratosphere and troposphere etc.The most a large amount of epidemiological study is observed health infringement and is significantly higher than coarseparticulate with the degree of correlation being exposed between fine particle PM2.5 (particulate matter, PM) wherein.PM2.5, also referred to as entering lung particle, refers to that in atmosphere, aerodynamic diameter is less than or equal to the fine particle of 2.5 microns.PM2.5 particle diameter is little, is rich in a large amount of poisonous and harmful substances and the residence time in atmosphere is long, fed distance is far away, not only air quality and visibility etc. is had to important impact, and serious threat is to the mankind's health.PM2.5 can directly enter mankind's bronchus and even reach alveolar, is attached to for a long time bronchus and lung, and the metabolism of human body self cannot be rejected to external.Be mainly that respiratory system and cardiovascular system are damaged, comprise respiratory tract irriate, cough, expiratory dyspnea, reduction pulmonary function, increase the weight of asthma, cause chronic bronchitis, arrhythmia cordis, non-lethal heart disease, heart and lung diseases patient be dead too early.In atmosphere, the concentration of PM2.5 is for a long time higher than 10 μ g/m3, and mortality risk just starts to rise.Every increase by the 10 μ g/m3 of concentration, total mortality risk, heart and lung diseases mortality risk and the mortality risk of lung cancer rises respectively 4%, 6%, and 8%.
In atmosphere, the source of PM2.5 has 3 kinds: (1) natural source particle, comprises volcanic debris, dirt ash, forest fire, exposed earth's surface, sandstorm, wind airborne dust soil, floating sea salt, pollen, fungal spore, bacterium etc.(2) original suspended particulate substance, the suspended particulate substance that bag hand fuel-burning power plant, petrochemical factory and general factory incomplete combustion produce.(3) derivative particle suspensions, comprises the fine particle that sulfate, nitrate, organic compound and other compound that the oxysulfide of factory, motor vehicle, petrochemical industry discharge or oxides of nitrogen, organic compound are subject to producing after solar radiation interact and form.Wherein motor vehicle is the main source of PM2.5.
At present, be widely used in the world the method for measuring PM2.5 and have three kinds: gravimetric method, β attenuation sensors and micro-oscillating balance method.The operation steps of these methods is mainly divided into two steps, first PM2.5 and larger particulate separation, the weight of the PM2.5 that then mensuration is separated.Aspect PM2.5 separation and trapping, researched and developed PM2.5 cutter, its principle is under the effect of aspiration pump, when air flows through cutter with certain flow velocity, those larger particles are because inertia is large, hit being coated with on oily parts and be trapped, the less PM2.5 of inertia can the overwhelming majority along with air passes through smoothly.But, with regard to trapping ability and the effect of the cutter of PM2.5, diameter is less than the particle of 2.5 microns neither all can be passed through, and is that the particle of 2.5 microns also has 50% probability can pass through cutter just; Diameter is greater than the particle of 2.5 microns and is not entirely trapped, and therefore utilizes PM2.5 cutter separation and collection fine particle, between the collection statistics of Different field and actual value, may have deviation, causes and over-evaluates or underestimate.According to the standard-required of " the gravimetry method of surrounding air PM10 and PM2.5 ", the percent of pass of 3.0 microns of above particles of kinetic diameter need be less than 16%, and the percent of pass of 2.1 microns of following particles is greater than 84%, and then definite result drops on a believable interval.
Cutter for particles is for being that a dust granules within the scope of special value carries out separation to diameter, for example PM2.5 cutter is diameter to be less than or equal to the particle of 2.5 microns carry out separation, cutter must be through calibration before using, the method of testing of current PM2.5 is for passing through the size of measuring flow, cutter, by adopting mathematical formulae to convert to calculate its result, so can there is larger error in its measurement result.
Therefore, need the experiment storehouse of a kind of high precision, dynamical production standard gaseous sample badly.
Summary of the invention
The experiment storehouse that the object of this invention is to provide a kind of high precision, dynamical production standard gaseous sample.
To achieve these goals, technical scheme provided by the invention is: the experiment storehouse that a kind of production standard gaseous sample is provided, for particle and clean air being mixed to form to the calibrating gas sample of exact concentration, it comprises: source of the gas, gas piping, main cabin body, the first blowning installation and the second blowning installation, described source of the gas is communicated with described main cabin body by described gas piping, the upper surface of described main cabin body offers the charging aperture that allows particle enter, on the sidewall of described main cabin body, be provided with the admission piece being communicated with described main cabin body, described the first blowning installation is communicated with main cabin body by described charging aperture, and particle is blown into described main cabin body, described the second blowning installation is communicated with described main cabin body by described admission piece, and blow in the body of described main cabin, the air that described particle is provided with described source of the gas in the body of described main cabin is mixed to form the calibrating gas sample of exact concentration, for cutter to be calibrated, sample.
The experiment storehouse of described production standard gaseous sample also comprises control system, described control system comprises controller, first flow controller, temperature controller and humidity controller, and described first flow controller, temperature controller and humidity controller are all electrically connected with described controller.
Described main cabin body is cylindric.
Described admission piece is communicated with described main cabin body along the tangential of outer wall of described main cabin body, and blows in the body of described main cabin, makes the annular air-flow of the inner formation of described main cabin body.
The speed of the air-flow that described the first blowning installation produces is 10～14 meter per seconds, and the speed that described the second blowning installation produces air-flow is 32～38 meter per seconds.
Described first flow controller, temperature controller and humidity controller are all installed on described gas piping.
The experiment storehouse of described production standard gaseous sample also comprises flowmeter, and described flowmeter is arranged on described gas piping.
Described control system also comprises second amount controller, and described source of the gas is connected with described charging aperture by described gas piping by second amount controller.
Described source of the gas provides clean gas.
The experiment storehouse of described production standard gaseous sample also comprises static regulator, and described static regulator is arranged on described gas piping.
The bottom of described main cabin body is provided with gas outlet, is connected with the joint for being connected with cutter on described gas outlet.
Compared with prior art, in the experiment storehouse of production standard gaseous sample of the present invention, the calibrating gas sample of described main cabin body for the gas of described source of the gas output and described particle are mixed to form to exact concentration, and the described cutter of confession is sampled.The focusing on of the experiment storehouse of production standard gaseous sample of the present invention is mixed into calibrating gas sample by particle, then described calibrating gas sample entered to cutter to be calibrated.
By following description also by reference to the accompanying drawings, it is more clear that the present invention will become, and these accompanying drawings are used for explaining embodiments of the invention.
Accompanying drawing explanation
Fig. 1 is the frame diagram of an embodiment in the experiment storehouse of production standard gaseous sample of the present invention.
Fig. 2 is that the experiment storehouse of production standard gaseous sample of the present invention is used in the structural representation in calibration system.
Fig. 3 is the vertical view of Fig. 1.
Illustrate: the experiment storehouse 40 of production standard gaseous sample, source of the gas 10, gas piping 20, control system 30, controller 31, first flow controller 32, temperature controller 33, humidity controller 34, flowmeter 35, static regulator 36, second amount controller 37, main cabin body 41, charging aperture 44, admission piece 45, gas outlet 46, joint 47.
Embodiment
With reference now to accompanying drawing, describe embodiments of the invention, in accompanying drawing, similarly element numbers represents similar element.As mentioned above, as Figure 1-3, the experiment storehouse 40 of production standard gaseous sample provided by the invention, be used for calibrating cutter for particles, described cutter is for separating of airborne particle, it comprises: source of the gas 10, gas piping 20, control system 30 and main cabin body 41, described source of the gas 10 is communicated with described main cabin body 41 by described gas piping 20, described control system 30 comprises controller 31, first flow controller 32, temperature controller 33 and humidity controller 34, described first flow controller 32, temperature controller 33 and humidity controller 34 are all electrically connected with described controller 31, , the upper surface of described main cabin body 41 offers the charging aperture 44 that allows particle enter, on the sidewall of described main cabin body 41, be provided with 3 admission pieces 45 that are communicated with described main cabin body 41, described the first blowning installation is communicated with main cabin body 41 by described charging aperture 44, and particle is blown into described main cabin body 41, described the second blowning installation is communicated with described main cabin body 41 by described admission piece 45, and to the body 41 interior air blowings of described main cabin, the air that described particle is provided with described source of the gas 10 in described main cabin body 41 is mixed to form the calibrating gas sample of exact concentration, for cutter to be calibrated, sample, calibrating gas sample and the collected data of cutter to be calibrated by contrast exact concentration are calibrated cutter to be calibrated.
As shown in Figure 1, described main cabin body 41 is cylindric.
As shown in Figure 1,3, described admission piece 45 is communicated with described main cabin body 41 along the tangential of outer wall of described main cabin body 41, and to the body 41 interior air blowings of described main cabin, makes the annular air-flow of the inner formation of described main cabin body 41.
The speed of the air-flow that described the first blowning installation produces is 10～14 meter per seconds, and the speed that described the second blowning installation produces air-flow is 32～38 meter per seconds.
As shown in Figure 2, described first flow controller 32, temperature controller 33 and humidity controller 34 are all installed on described gas piping 20.
As shown in Figure 2, described control system 30 also comprises second amount controller 37, and described source of the gas 10 is connected with described charging aperture 44 by described gas piping 20 by second amount controller 37.
As shown in Figure 2, described source of the gas 10 is clean gas.
As shown in Figure 2, the experiment storehouse 40 of described production standard gaseous sample also comprises static regulator 36, and described static regulator 36 is arranged on described gas piping 20.
As shown in Figure 2, the experiment storehouse 40 of described production standard gaseous sample also comprises flowmeter 35, and described flowmeter 35 is arranged on described gas piping 20.
As shown in Figure 1, 2, the bottom of described main cabin body 41 is provided with gas outlet 46, is connected with the joint 47 for being connected with cutter on described gas outlet 46.
In conjunction with Fig. 1-3, in the experiment storehouse 40 of production standard gaseous sample of the present invention, the calibrating gas sample of described main cabin body 41 for the gas of described source of the gas 10 outputs and described particle are mixed to form to exact concentration, and the described cutter of confession is sampled.The focusing on of the experiment storehouse 40 of production standard gaseous sample of the present invention is mixed into calibrating gas sample by particle, then described calibrating gas sample entered to cutter to be calibrated.
The experiment storehouse 40 of production standard gaseous sample provided by the invention can be calibrated PM2.5 cutter and other cutters.Above disclosed is only the preferred embodiments of the present invention, certainly can not limit with this interest field of the present invention, and the equivalent variations of therefore doing according to the present patent application the scope of the claims, still belongs to the scope that the present invention is contained.
Claims (9)
1. the experiment storehouse of a production standard gaseous sample, for particle and clean air being mixed to form to the calibrating gas sample of exact concentration, it is characterized in that, comprise: source of the gas, gas piping, main cabin body, the first blowning installation and the second blowning installation, described source of the gas is communicated with described main cabin body by described gas piping, the upper surface of described main cabin body offers the charging aperture that allows particle enter, on the sidewall of described main cabin body, be provided with the admission piece being communicated with described main cabin body, described the first blowning installation is communicated with main cabin body by described charging aperture, and particle is blown into described main cabin body, described the second blowning installation is communicated with described main cabin body by described admission piece, and blow in the body of described main cabin, the air that described particle is provided with described source of the gas in the body of described main cabin is mixed to form the calibrating gas sample of exact concentration, for cutter to be calibrated, sample.
2. the experiment storehouse of production standard gaseous sample as claimed in claim 1, is characterized in that: described main cabin body is cylindric.
3. the experiment storehouse of production standard gaseous sample as claimed in claim 1, it is characterized in that: described admission piece is communicated with described main cabin body along the tangential of outer wall of described main cabin body, and blow in the body of described main cabin, make the annular air-flow of the inner formation of described main cabin body.
4. the experiment storehouse of production standard gaseous sample as claimed in claim 1, is characterized in that: the speed of the air-flow that described the first blowning installation produces is 10～14 meter per seconds, and the speed that described the second blowning installation produces air-flow is 32～38 meter per seconds.
5. the experiment storehouse of production standard gaseous sample as claimed in claim 1, it is characterized in that: also comprise control system, described control system comprises controller, first flow controller, temperature controller and humidity controller, described first flow controller, temperature controller and humidity controller are all electrically connected with described controller, and described first flow controller, temperature controller and humidity controller are all installed on described gas piping.
6. the experiment storehouse of production standard gaseous sample as claimed in claim 5, is characterized in that: described control system also comprises second amount controller, and described source of the gas is connected with described charging aperture by described gas piping by second amount controller.
7. the experiment storehouse of production standard gaseous sample as claimed in claim 1, is characterized in that: the experiment storehouse of described production standard gaseous sample also comprises static regulator, and described static regulator is arranged on described gas piping.
8. the experiment storehouse of production standard gaseous sample as claimed in claim 1, is characterized in that: the bottom of described main cabin body is provided with gas outlet, is connected with the joint for being connected with cutter on described gas outlet.
9. the experiment storehouse of production standard gaseous sample as claimed in claim 1, is characterized in that: the experiment storehouse of described production standard gaseous sample also comprises flowmeter, and described flowmeter is arranged on described gas piping.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210056473.4A CN102607912B (en) | 2012-03-06 | 2012-03-06 | Experiment cabin for preparing standard air samples |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210056473.4A CN102607912B (en) | 2012-03-06 | 2012-03-06 | Experiment cabin for preparing standard air samples |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102607912A CN102607912A (en) | 2012-07-25 |
| CN102607912B true CN102607912B (en) | 2014-01-22 |
Family
ID=46525476
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210056473.4A Expired - Fee Related CN102607912B (en) | 2012-03-06 | 2012-03-06 | Experiment cabin for preparing standard air samples |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102607912B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10267803A (en) * | 1997-03-26 | 1998-10-09 | Nohmi Bosai Ltd | Air sampling-type environment monitoring sensor |
| EP1102055A2 (en) * | 1999-11-18 | 2001-05-23 | L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude | Method for counting the particles in a sample gas |
| CN201532329U (en) * | 2009-07-24 | 2010-07-21 | 中国科学院武汉岩土力学研究所 | Experiment device of seabed gas hydrates |
| JP2011027470A (en) * | 2009-06-23 | 2011-02-10 | Shimizu Corp | Apparatus for measuring dusting amount of asbestos |
| JP4690790B2 (en) * | 2005-06-17 | 2011-06-01 | 興和株式会社 | Particle feeder |
| CN202471482U (en) * | 2012-03-06 | 2012-10-03 | 深圳市华测检测技术股份有限公司 | Experimental bin for producing standard gas sample |
-
2012
- 2012-03-06 CN CN201210056473.4A patent/CN102607912B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10267803A (en) * | 1997-03-26 | 1998-10-09 | Nohmi Bosai Ltd | Air sampling-type environment monitoring sensor |
| EP1102055A2 (en) * | 1999-11-18 | 2001-05-23 | L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude | Method for counting the particles in a sample gas |
| JP4690790B2 (en) * | 2005-06-17 | 2011-06-01 | 興和株式会社 | Particle feeder |
| JP2011027470A (en) * | 2009-06-23 | 2011-02-10 | Shimizu Corp | Apparatus for measuring dusting amount of asbestos |
| CN201532329U (en) * | 2009-07-24 | 2010-07-21 | 中国科学院武汉岩土力学研究所 | Experiment device of seabed gas hydrates |
| CN202471482U (en) * | 2012-03-06 | 2012-10-03 | 深圳市华测检测技术股份有限公司 | Experimental bin for producing standard gas sample |
Non-Patent Citations (2)
| Title |
|---|
| Particle and gaseous emissions from compressed natural gas and ultralow sulphur diesel-fuelled buses at four steady engine loads;E.R. Jayaratne, Z.D. Ristovski, , N. Meyer, L. Morawska;《Science of The Total Environment》;20090430;第407卷(第8期);第2845-2852页 * |
| 大气颗粒物个数浓度、粒径分布及颗粒物生成——成长过程研究;高健;《中国博士学位论文全文数据库》;20081215(第12期);第B027-16页 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102607912A (en) | 2012-07-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102607893B (en) | Calibrating system of particulate matter cutter | |
| Marple | History of impactors—the first 110 years | |
| CN102607895B (en) | Calibration system of particle cutter | |
| CN102841044A (en) | Beta-ray atmospheric particulate monitor and monitoring method thereof | |
| CN102607894B (en) | Calibration system of particle cutter | |
| CN103018145A (en) | Novel real-time PM2.5 (particulate matter 2.5) mass concentration monitoring device and monitoring method | |
| Huebert et al. | PELTI: Measuring the passing efficiency of an airborne low turbulence aerosol inlet | |
| Crazzolara et al. | A new multicopter-based unmanned aerial system for pollen and spores collection in the atmospheric boundary layer | |
| CN102866091A (en) | Particulate matter differential concentration measuring system based on beta ray method | |
| Li et al. | A robot assisted high-flow portable cyclone sampler for bacterial and SARS-CoV-2 aerosols | |
| CN202582951U (en) | Calibration system of particulate matter cutter | |
| CN102607912B (en) | Experiment cabin for preparing standard air samples | |
| CN202582953U (en) | Calibration system of particle cutter | |
| CN102706705B (en) | Experiment bin for manufacturing standard gas samples | |
| CN105890926A (en) | Device and method for sorting and gathering of airborne suspended particulates by means of sonodynamic | |
| CN202582952U (en) | Calibration system for particle cutter | |
| CN202471482U (en) | Experimental bin for producing standard gas sample | |
| CN102607913B (en) | Experiment cabin for preparing standard air samples | |
| CN202547991U (en) | Experiment chamber for manufacturing standard gas sample | |
| CN202547992U (en) | Experiment cabin for manufacturing standard gas sample | |
| CN202793983U (en) | Particulate matter difference concentration measuring system based on oscillation balance | |
| Di‐Giovanni | A review of the sampling efficiency of rotating‐arm impactors used in aerobiological studies | |
| CN206208702U (en) | A kind of detector of quick measure air pollutants | |
| Kalka | Mobile measurement of aerosols using drones | |
| Liu et al. | Advances in particle sampling and measurement |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 518057 Guangdong, Shenzhen Province, Baoan District District, Wei Wei Industrial Park, building C, 70 Patentee after: CENTRE TESTING INTERNATIONAL GROUP Co.,Ltd. Address before: 518057 Guangdong, Shenzhen Province, Baoan District District, Wei Wei Industrial Park, building C, 70 Patentee before: Centre Testing International (Shenzhen) Co.,Ltd. |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20160226 Address after: 518101, C building, the Peach Garden science and Technology Innovation Park, Xixiang iron ore reservoir, Baoan District, Shenzhen, Guangdong, China Patentee after: Shenzhen Huawei Metrology Technology Co.,Ltd. Address before: 518057 Guangdong, Shenzhen Province, Baoan District District, Wei Wei Industrial Park, building C, 70 Patentee before: CENTRE TESTING INTERNATIONAL GROUP Co.,Ltd. |
|
| 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: 20140122 Termination date: 20170306 |