CN202471482U - Experimental bin for producing standard gas sample - Google Patents
Experimental bin for producing standard gas sample Download PDFInfo
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- CN202471482U CN202471482U CN 201220080399 CN201220080399U CN202471482U CN 202471482 U CN202471482 U CN 202471482U CN 201220080399 CN201220080399 CN 201220080399 CN 201220080399 U CN201220080399 U CN 201220080399U CN 202471482 U CN202471482 U CN 202471482U
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- main cabin
- gas
- production standard
- gaseous sample
- cabin body
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Abstract
The utility model discloses an experimental bin for producing a standard gas sample. The experimental bin is used for mixing particulate matters with clean air to form a standard gas sample with exact concentration, and comprises a gas source, a gas pipe, a main bin body, a first blowing device and a second blowing device, wherein the gas source is communicated with the main bin body through the gas pipe; the upper end surface of the main bin body is provided with a feed port for the particulate matters to enter; the side wall of the main bin body is provided with a gas inlet nozzle communicated with the main bin body; the first blowing device is communicated with the main bin body through the feed port and blows the particulate matters into the main bin body; the second blowing device is communicated with the main bin body through the gas inlet nozzle and blows gas into the main bin body so that the particulate matters are mixed with the air provided by the gas source in the main bin body to form the standard gas sample with exact concentration for the sampling of a cutter to be calibrated. The experimental bin for producing a standard gas sample disclosed by the utility model has high precision and high efficiency.
Description
Technical field
The utility model relates to a kind of particle cutter field, relates in particular to the experiment storehouse of a kind of high precision, dynamical production standard gaseous sample.
Background technology
Along with the continuous development of industry, environment for human survival is destroyed, and wherein the situation is tense in air pollution, and airborne suspended particulate substance can cause grey haze weather.
Weather scientist and medical expert think, the grey haze weather that is caused by fine particle is to the harm of health even bigger than sandstorm.The particle of particle diameter more than 10 microns can be blocked in outside people's the nose; The particle of particle diameter between 2.5 microns to 10 microns can get into the upper respiratory tract, but part can excrete through sputum etc., also can be stopped by the inner fine hair of nasal cavity in addition, and be less relatively to human health damage; And particle diameter is at the fine particle below 2.5 microns, and diameter is equivalent to human hair's 1/10 size, and difficult quilt stops.Can directly get into bronchus after being inhaled into human body, disturb the gas exchange of lung, cause the disease that comprises aspects such as asthma, bronchitis and cardiovascular disease.
Atmospheric aerosol is a content component seldom in the earth atmosphere composition, but it all has material impact to radiation balance (and then to Global climate change), stratosphere and the tropospheric chemical reaction etc. of air quality, visibility, acid deposition, cloud and precipitation, atmosphere.A large amount of epidemiological studies is observed health infringement (particulate matter, the degree of correlation between PM) is significantly higher than coarseparticulate with being exposed to wherein fine particle PM2.5 over nearest more than 10 years.PM2.5 is also referred to as and can goes into the lung particle, is meant that atmosphere air kinetic diameter is less than or equal to 2.5 microns fine particle.The PM2.5 particle diameter is little, is rich in a large amount of poisonous, objectionable impuritiess and the residence time in atmosphere is long, fed distance is far away, not only air quality and visibility etc. is had significant effects, and serious threat is to human beings'health.PM2.5 can directly get into human bronchus even reach alveolar, and for a long time attached to bronchus and lung, the metabolism of human body self can't be rejected to it external.Mainly be that respiratory system and cardiovascular system are damaged, comprise respiratory tract irriate, cough, expiratory dyspnea, reduction PFT, increase the weight of asthma, cause chronic bronchitis, arrhythmia cordis, non-lethal heart disease, heart and lung diseases patient premature dead.The concentration of PM2.5 is higher than 10 μ g/m3 for a long time in the atmosphere, and mortality risk just begins 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 4%, 6% and 8% respectively.
The source of PM2.5 has 3 kinds in the atmosphere: (1) natural source particle comprises volcanic debris, dirt ash, forest fire, the exposed face of land, sandstorm, wind airborne dust soil, floating sea salt, pollen, fungal spore, bacterium or the like.(2) original suspended particulate substance, the suspended particulate substance that bag hand fuel-burning power plant, petrochemical factory and general factory incomplete combustion are produced.(3) derivative particle suspensions, oxysulfide or oxides of nitrogen, the organic compound that comprises factory, motor vehicle, petrochemical industry discharging receive the fine particle that the sulfate, nitrate, organic compound and other compound that are produced behind the solar radiation interact and form.Wherein motor vehicle is the main source of PM2.5.
At present, be widely used in the method for measuring PM2.5 in the world and have three kinds: gravimetric method, β radiation absorption method and trace vibration sedimentation balance method.The operation steps of these methods mainly was divided into for two steps, earlier PM2.5 and bigger particulate separation, measured the weight of the PM2.5 that separates then.Aspect PM2.5 separation and capture; Researched and developed the PM2.5 cutter; Its principle is under the effect of aspiration pump, and when air flow through cutter with certain flow velocity, those bigger particles were because inertia is big; Hit being coated with on the oily parts and be trapped, the less PM2.5 of inertia then can the overwhelming majority along with air passes through smoothly.But, with regard to the trapping ability and the effect of the cutter of PM2.5, diameter neither all can pass through less than 2.5 microns particle, is that 2.5 microns particle also has 50% probability can pass through cutter just; Diameter is not to be trapped entirely greater than 2.5 microns particle, therefore utilizes PM2.5 cutter separation and collection fine particle, may have deviation between different on-the-spot collection statisticses and the actual value, causes and over-evaluates or underestimate.Standard-required according to " the gravimetry method of surrounding air PM10 and PM2.5 "; The percent of pass of kinetic diameter particle more than 3.0 microns needs less than 16%; And the percent of pass of particle below 2.1 microns is greater than 84%, and then definite result drops on a believable interval.
The particle cutter is that to be used for diameter be that a dust granules in the special value scope separates; For example the PM2.5 cutter is that the particle of diameter smaller or equal to 2.5 microns separated; Cutter must be through calibration before using; The method of testing of current PM2.5 calculate its result through adopting mathematical formulae to convert, so can there be bigger error in its measurement result for through measuring the size of flow, cutter.
Therefore, need the experiment storehouse of a kind of high precision, dynamical production standard gaseous sample badly.
The utility model content
The purpose of the utility model provides the experiment storehouse of a kind of high precision, dynamical production standard gaseous sample.
To achieve these goals; The technical scheme that the utility model provides is: the experiment storehouse that a kind of production standard gaseous sample is provided; Be used for particle and clean air mixed are formed the calibrating gas sample of exact concentration, it comprises: source of the gas, gas piping, main cabin body, first blowning installation and second blowning installation, and said source of the gas is communicated with said main cabin body through said gas piping; The upper surface of said main cabin body offers the charging aperture that lets particle get into; The sidewall of said main cabin body is provided with the admission piece that is communicated with said main cabin body, and said first blowning installation is communicated with main cabin body through said charging aperture, and particle is blown into said main cabin body; Said second blowning installation is communicated with said main cabin body through said admission piece; And in the body of said main cabin, blow, the air mixed that said particle is provided with said source of the gas in the body of said main cabin forms the calibrating gas sample of exact concentration, supplies cutter to be calibrated to sample.
The experiment storehouse of said production standard gaseous sample also comprises control system; Said control system comprises controller, first flow controller, temperature controller and humidity controller, and said first flow controller, temperature controller and humidity controller all electrically connect with said controller.
Said main cabin body is cylindric.
The tangential of said admission piece outer wall of body along said main cabin is communicated with said main cabin body, and in the body of said main cabin, blows, and makes body inside, said main cabin form the air-flow of annular.
The speed of the air-flow that said first blowning installation produces is 10～14 meter per seconds, and the speed that said second blowning installation produces air-flow is 32～38 meter per seconds.
Said first flow controller, temperature controller and humidity controller all are installed on the said gas piping.
The experiment storehouse of said production standard gaseous sample also comprises flowmeter, and said flowmeter is arranged on the said gas piping.
Said control system also comprises second flow controller, and said source of the gas is connected with said charging aperture through said gas piping through second flow controller.
Said source of the gas provides clean gas.
The experiment storehouse of said production standard gaseous sample also comprises the static regulator, and said static regulator is arranged on the said gas piping.
The bottom of said main cabin body is provided with the gas outlet, is connected with on the said gas outlet to be used for the joint that is connected with cutter.
Compared with prior art, in the experiment storehouse of the utility model production standard gaseous sample, said main cabin body is used for the gas of said source of the gas output is mixed the calibrating gas sample that forms exact concentration with said particle, and supplies said cutter to sample.The focusing on of the experiment storehouse of the utility model production standard gaseous sample is mixed into the calibrating gas sample with particle, then said calibrating gas sample got into cutter to be calibrated.
Through following description and combine accompanying drawing, it is more clear that the utility model will become, and these accompanying drawings are used to explain the embodiment of the utility model.
Description of drawings
Fig. 1 is the frame diagram of an embodiment in the experiment storehouse of the utility model production standard gaseous sample.
Fig. 2 is used in the structural representation on the calibration system for the experiment storehouse of the utility model production standard gaseous sample.
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, the second flow controllers 37, main cabin body 41; Charging aperture 44, admission piece 45, gas outlet 46, joint 47.
Embodiment
With reference now to accompanying drawing, describe the embodiment of the utility model, the similar elements label is represented similar elements in the accompanying drawing.As stated; Shown in Fig. 1-3; The experiment storehouse 40 of the production standard gaseous sample that the utility model provides is used to calibrate the particle cutter, and said cutter is used for the particle of separation of air; It comprises: source of the gas 10, gas piping 20, control system 30 and main cabin body 41; Said source of the gas 10 is communicated with said main cabin body 41 through said gas piping 20, and said control system 30 comprises controller 31, first flow controller 32, temperature controller 33 and humidity controller 34, said first flow controller 32, temperature controller 33 and humidity controller 34 all with said controller 31 electric connections; The upper surface of said main cabin body 41 offers the charging aperture 44 that lets particle get into, and the sidewall of said main cabin body 41 is provided with 3 admission pieces 45 that are communicated with said main cabin body 41, and said first blowning installation is communicated with main cabin body 41 through said charging aperture 44; And particle blown into said main cabin body 41; Said second blowning installation is communicated with said main cabin body 41 through said admission piece 45, and in said main cabin body 41, blows, and the air mixed that said particle is provided with said source of the gas 10 in said main cabin body 41 forms the calibrating gas sample of exact concentration; Supply cutter to be calibrated to sample, come cutter to be calibrated is calibrated through the calibrating gas sample and the collected data of cutter to be calibrated of contrast exact concentration.
As shown in Figure 1, said main cabin body 41 is cylindric.
Like Fig. 1, shown in 3, the tangential of said admission piece 45 outer wall of body 41 along said main cabin is communicated with said main cabin body 41, and in said main cabin body 41, blows, and makes body 41 inside in said main cabin form the air-flows of annular.
The speed of the air-flow that said first blowning installation produces is 10～14 meter per seconds, and the speed that said second blowning installation produces air-flow is 32～38 meter per seconds.
As shown in Figure 2, said first flow controller 32, temperature controller 33 and humidity controller 34 all are installed on the said gas piping 20.
As shown in Figure 2, said control system 30 also comprises second flow controller 37, and said source of the gas 10 is connected with said charging aperture 44 through said gas piping 20 through second flow controller 37.
As shown in Figure 2, said source of the gas 10 is a clean gas.
As shown in Figure 2, the experiment storehouse 40 of said production standard gaseous sample also comprises static regulator 36, and said static regulator 36 is arranged on the said gas piping 20.
As shown in Figure 2, the experiment storehouse 40 of said production standard gaseous sample also comprises flowmeter 35, and said flowmeter 35 is arranged on the said gas piping 20.
Like Fig. 1, shown in 2, the bottom of said main cabin body 41 is provided with gas outlet 46, is connected with on the said gas outlet 46 to be used for the joint 47 that is connected with cutter.
In conjunction with Fig. 1-3, in the experiment storehouse 40 of the utility model production standard gaseous sample, said main cabin body 41 is used for the gas of said source of the gas 10 outputs is mixed the calibrating gas sample that forms exact concentration with said particle, and supplies said cutter to sample.The focusing on of the experiment storehouse 40 of the utility model production standard gaseous sample is mixed into the calibrating gas sample with particle, then said calibrating gas sample got into cutter to be calibrated.
The experiment storehouse 40 of the production standard gaseous sample that the utility model provides can be calibrated PM2.5 cutter and other cutters.The above disclosed preferred embodiment that is merely the utility model can not limit the interest field of the utility model certainly with this, so according to the equivalent variations that the utility model claim is done, still belong to the scope that the utility model is contained.
Claims (10)
1. the experiment storehouse of a production standard gaseous sample; Be used for particle and clean air mixed are formed the calibrating gas sample of exact concentration; It is characterized in that, comprising: source of the gas, gas piping, main cabin body, first blowning installation and second blowning installation, said source of the gas is communicated with said main cabin body through said gas piping; The upper surface of said main cabin body offers the charging aperture that lets particle get into; The sidewall of said main cabin body is provided with the admission piece that is communicated with said main cabin body, and said first blowning installation is communicated with main cabin body through said charging aperture, and particle is blown into said main cabin body; Said second blowning installation is communicated with said main cabin body through said admission piece; And in the body of said main cabin, blow, the air mixed that said particle is provided with said source of the gas in the body of said main cabin forms the calibrating gas sample of exact concentration, supplies cutter to be calibrated to sample.
2. the experiment storehouse of production standard gaseous sample as claimed in claim 1; It is characterized in that: also comprise control system; Said control system comprises controller, first flow controller, temperature controller and humidity controller, and said first flow controller, temperature controller and humidity controller all electrically connect with said controller.
3. the experiment storehouse of production standard gaseous sample as claimed in claim 1 is characterized in that: said main cabin body is cylindric.
4. the experiment storehouse of production standard gaseous sample as claimed in claim 1; It is characterized in that: the tangential of said admission piece outer wall of body along said main cabin is communicated with said main cabin body; And in the body of said main cabin, blow, make body inside, said main cabin form the air-flow of annular.
5. the experiment storehouse of production standard gaseous sample as claimed in claim 1 is characterized in that: the speed of the air-flow that said first blowning installation produces is 10～14 meter per seconds, and the speed that said second blowning installation produces air-flow is 32～38 meter per seconds.
6. the experiment storehouse of production standard gaseous sample as claimed in claim 2 is characterized in that: said first flow controller, temperature controller and humidity controller all are installed on the said gas piping.
7. the experiment storehouse of production standard gaseous sample as claimed in claim 2 is characterized in that: said control system also comprises second flow controller, and said source of the gas is connected with said charging aperture through said gas piping through second flow controller.
8. the experiment storehouse of production standard gaseous sample as claimed in claim 1 is characterized in that: the experiment storehouse of said production standard gaseous sample also comprises the static regulator, and said static regulator is arranged on the said gas piping.
9. the experiment storehouse of production standard gaseous sample as claimed in claim 1 is characterized in that: the bottom of said main cabin body is provided with the gas outlet, is connected with on the said gas outlet to be used for the joint that is connected with cutter.
10. the experiment storehouse of production standard gaseous sample as claimed in claim 1 is characterized in that: the experiment storehouse of said production standard gaseous sample also comprises flowmeter, and said flowmeter is arranged on the said gas piping.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220080399 CN202471482U (en) | 2012-03-06 | 2012-03-06 | Experimental bin for producing standard gas sample |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220080399 CN202471482U (en) | 2012-03-06 | 2012-03-06 | Experimental bin for producing standard gas sample |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202471482U true CN202471482U (en) | 2012-10-03 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220080399 Expired - Lifetime CN202471482U (en) | 2012-03-06 | 2012-03-06 | Experimental bin for producing standard gas sample |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202471482U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102607912A (en) * | 2012-03-06 | 2012-07-25 | 深圳市华测检测技术股份有限公司 | Experiment cabin for preparing standard air samples |
-
2012
- 2012-03-06 CN CN 201220080399 patent/CN202471482U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102607912A (en) * | 2012-03-06 | 2012-07-25 | 深圳市华测检测技术股份有限公司 | Experiment cabin for preparing standard air samples |
| CN102607912B (en) * | 2012-03-06 | 2014-01-22 | 深圳市华测检测技术股份有限公司 | Experiment cabin for preparing standard air samples |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20121003 Effective date of abandoning: 20140122 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20121003 Effective date of abandoning: 20140122 |
|
| RGAV | Abandon patent right to avoid regrant |