CN202547992U - Experiment cabin for manufacturing standard gas sample - Google Patents
Experiment cabin for manufacturing standard gas sample Download PDFInfo
- Publication number
- CN202547992U CN202547992U CN 201220080456 CN201220080456U CN202547992U CN 202547992 U CN202547992 U CN 202547992U CN 201220080456 CN201220080456 CN 201220080456 CN 201220080456 U CN201220080456 U CN 201220080456U CN 202547992 U CN202547992 U CN 202547992U
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- gas
- storehouse
- sample
- production standard
- controller
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Abstract
The utility model discloses an experiment cabin for manufacturing a standard gas sample. The experiment cabin comprises a gas source, a first blowing device, a blowing cabin, a second blowing device, a mixing cabin and a suspension cabin, wherein the blowing cabin, the second blowing device, the mixing cabin and the suspension cabin are communicated in sequence; the blowing cabin is communicated with a first gas delivery pipe; a given number of particles are arranged in the blowing cabin; the first blowing device is arranged in the blowing cabin; the particles are blown off by the first blowing device and are mixed with a gas flow provided by the gas source and then blowing is performed into the mixing cabin by the second blowing device; output of the blowing cabin is mixed to form the standard gas sample with clear concentration; the suspension cabin is used for buffering the standard gas sample and then sampling for a cutter to be calibrated; and the cutter to be calibrated is calibrated by comparing data acquired by the standard gas sample with the clear concentration and the cutter to be calibrated. The experiment cabin for manufacturing the standard gas sample is an experiment cabin which has high accuracy 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;, comprise first blowning installation, the purge bin, second blowning installation, mixing bunker and the suspension storehouse that are communicated with successively; Said purge bin and first gas piping are communicated with, and innerly are equipped with the particle of determined number, and said first blowning installation is arranged in the said purge bin; Said first blowning installation dispels particle and mixes with air-flow that said source of the gas provides; The outer wall of said mixing bunker offers admission piece uniformly, and said admission piece all is communicated with said second blowning installation, and said second blowning installation is blown in said mixing bunker; And the output of said purge bin is mixed the calibrating gas sample that forms exact concentration; Said calibrating gas sample gets into said suspension storehouse, and said suspension storehouse cushions the back to said calibrating gas sample and supply cutter to be calibrated to sample, and comes cutter to be calibrated is calibrated through the calibrating gas sample and the collected data of cutter to be calibrated of contrast exact concentration.
The experiment storehouse of said production standard gaseous sample also comprises first gas piping and control system; Said source of the gas is communicated with said experiment storehouse through said first gas piping; 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 mixing bunker is cylindric.
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 said first gas piping.
Said suspension storehouse is provided with the gas outlet,, be connected with on the said gas outlet and be used for the joint that is connected with cutter.
Said source of the gas provides clean gas.
The experiment storehouse of said production standard gaseous sample also comprises second gas piping, and said source of the gas also is communicated with through said second gas piping and said mixing bunker, and gives said mixing bunker air feed.
Said control system also comprises second volume control device, and said second volume control device and said controller electrically connect, and are arranged on said second gas piping.
Said control system also comprises flowmeter, is provided with said flowmeter on said first gas piping and second gas piping.
Said control system also comprises the static regulator, and said static regulator is arranged on said first gas piping.
Compared with prior art; In the experiment storehouse of the utility model production standard gaseous sample; Said mixing bunker 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; Said calibrating gas sample gets into said suspension storehouse, and said suspension storehouse is used for that said calibrating gas sample is cushioned the back 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; Said gaseous sample gets into said suspension storehouse and cushions the back and supply cutter to be calibrated to sample the gaseous sample that focuses on particle is mixed into exact concentration in the experiment storehouse of the utility model production standard gaseous sample.
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.
Illustrate: the experiment storehouse 40 of production standard gaseous sample, source of the gas 10, the first gas piping 20a, the second gas piping 20b, 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, the first blowning installations 41, purge bin 42, the second blowning installations 43; Mixing bunker 44, suspension storehouse 45, admission piece 46, gas outlet 47, joint 48.
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. 1-2; The experiment storehouse 40 of the production standard gaseous sample that the utility model provides; Be used for particle and clean air mixed are formed the gaseous sample of exact concentration, purge bin that it comprises first blowning installation 41, be communicated with successively 42, second blowning installation 43, mixing bunker 44 and suspension storehouse 45, said purge bin 42 and first gas piping 20a connection; And the inner particle of determined number (figure is last not to be looked) that is equipped with; Said first blowning installation 41 is arranged in the said purge bin 42, and said first blowning installation 41 dispels particle and mixes with air-flow that said source of the gas 10 provides, and the outer wall of said mixing bunker 44 offers admission piece 46 uniformly; Said admission piece 46 all is communicated with said second blowning installation 43; Said second blowning installation 43 is blown in said mixing bunker 44, and the output of said purge bin 42 is mixed the calibrating gas sample that forms exact concentration, and said calibrating gas sample gets into said suspension storehouse 45; And the 45 pairs of said calibrating gas samples in said suspension storehouse cushion the back and supply cutter to be calibrated to sample, and 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 2, said control system 30 comprises controller 31, first flow controller 32, temperature controller 33 and humidity controller 34, and said first flow controller 32, temperature controller 33 and humidity controller 34 all electrically connect with said controller 31.
As shown in Figure 1, said mixing bunker 44 is cylindric.
The speed of the air-flow that said first blowning installation 41 produces is 10～14 meter per seconds, and the speed that said second blowning installation 43 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 first gas piping 20a.
As shown in Figure 1, said suspension storehouse 45 is provided with gas outlet 47,, be connected with on the said gas outlet 47 and be used for the joint 48 that is connected with cutter.
As shown in Figure 1, said suspension storehouse 45 is to be connected with cutter through joint 48.
As shown in Figure 2, said source of the gas 10 provides clean gas.
As shown in Figure 1, the experiment storehouse 40 of said production standard gaseous sample also comprises the second gas piping 20b, and said source of the gas 10 also is communicated with through said second gas piping 20b and said mixing bunker 44, and gives said mixing bunker 44 air feed.
As shown in Figure 2, said control system 30 also comprises second volume control device 37, and said second volume control device 37 electrically connects and is arranged on the said second gas piping 20b with said controller 31.
As shown in Figure 2, said control system 30 also comprises flowmeter 35, is provided with said flowmeter 30 on the said first gas piping 20a and the second gas piping 20b.
As shown in Figure 2, said control system 30 also comprises static regulator 36, and said static regulator 36 is arranged on the said first gas piping 20a.
In conjunction with Fig. 1-2; In the experiment storehouse 40 of the utility model production standard gaseous sample; Said first blowning installation 41 is arranged in the said purge bin 42; Said first blowning installation 41 dispels particle and mixes with air-flow that said source of the gas 10 provides; The outer wall of said mixing bunker 44 offers admission piece 46 uniformly, and said admission piece 46 all is communicated with said second blowning installation 43, and said second blowning installation 43 is blown in said mixing bunker 44; And the output of said purge bin 42 is mixed the calibrating gas sample that forms exact concentration; Said calibrating gas sample gets into said suspension storehouse 45, and the 45 pairs of said calibrating gas samples in said suspension storehouse cushion the back and supply cutter to be calibrated to sample, and comes cutter to be calibrated is calibrated through the calibrating gas sample and the collected data of cutter to be calibrated of contrast exact concentration.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 is got into cutter to be calibrated, calibrate through the calibrating gas sample and the collected data of cutter to be calibrated of contrast concentration known.
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: purge bin, second blowning installation, mixing bunker and the suspension storehouse of source of the gas, first blowning installation, connection successively; The said purge bin and first gas piping are communicated with; And inner be equipped with the particle of determined number, said first blowning installation is arranged in the said purge bin, and said first blowning installation dispels particle and mixes with air-flow that said source of the gas provides; The outer wall of said mixing bunker offers admission piece uniformly; Said admission piece all is communicated with said second blowning installation, and said second blowning installation is blown in said mixing bunker, and the output of said purge bin is mixed the calibrating gas sample that forms exact concentration; Said calibrating gas sample gets into said suspension storehouse, and said suspension storehouse is cushioned the back to said calibrating gas sample and supplied 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 first gas piping and control system; Said source of the gas is communicated with said experiment storehouse through said first gas piping; 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 mixing bunker is cylindric.
3, 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.
4. the experiment storehouse of production standard gaseous sample as claimed in claim 1 is characterized in that: said first flow controller, temperature controller and humidity controller all are installed on said first gas piping.
5. the experiment storehouse of production standard gaseous sample as claimed in claim 1 is characterized in that: said suspension storehouse 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.
6. the experiment storehouse of production standard gaseous sample as claimed in claim 1 is characterized in that: said source of the gas provides clean gas.
7. the experiment storehouse of production standard gaseous sample as claimed in claim 2 is characterized in that: also comprise second gas piping, said source of the gas also is communicated with through said second gas piping and said mixing bunker, and gives said mixing bunker air feed.
8. the experiment storehouse of production standard gaseous sample as claimed in claim 7 is characterized in that: said control system also comprises second volume control device, and said second volume control device and said controller electrically connect, and are arranged on said second gas piping.
9. the experiment storehouse of production standard gaseous sample as claimed in claim 7 is characterized in that: said control system also comprises flowmeter, is provided with said flowmeter on said first gas piping and second gas piping.
10. the experiment storehouse of production standard gaseous sample as claimed in claim 2 is characterized in that: said control system also comprises the static regulator, and said static regulator is arranged on said first gas piping.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220080456 CN202547992U (en) | 2012-03-06 | 2012-03-06 | Experiment cabin for manufacturing standard gas sample |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220080456 CN202547992U (en) | 2012-03-06 | 2012-03-06 | Experiment cabin for manufacturing standard gas sample |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202547992U true CN202547992U (en) | 2012-11-21 |
Family
ID=47168610
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220080456 Expired - Lifetime CN202547992U (en) | 2012-03-06 | 2012-03-06 | Experiment cabin for manufacturing standard gas sample |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202547992U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102706705A (en) * | 2012-03-06 | 2012-10-03 | 深圳市华测检测技术股份有限公司 | Experiment bin for manufacturing standard gas samples |
-
2012
- 2012-03-06 CN CN 201220080456 patent/CN202547992U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102706705A (en) * | 2012-03-06 | 2012-10-03 | 深圳市华测检测技术股份有限公司 | Experiment bin for manufacturing standard gas samples |
| CN102706705B (en) * | 2012-03-06 | 2014-11-19 | 深圳市华测检测技术股份有限公司 | Experiment bin for manufacturing standard gas 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: 20121121 Effective date of abandoning: 20141119 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20121121 Effective date of abandoning: 20141119 |
|
| RGAV | Abandon patent right to avoid regrant |