CN104111217A - Dust calibration system - Google Patents
Dust calibration system Download PDFInfo
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- CN104111217A CN104111217A CN201410271051.8A CN201410271051A CN104111217A CN 104111217 A CN104111217 A CN 104111217A CN 201410271051 A CN201410271051 A CN 201410271051A CN 104111217 A CN104111217 A CN 104111217A
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- dust
- folder holder
- calibration system
- filter membrane
- cutting head
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Abstract
The invention provides a dust calibration system. The system comprises a mono-disperse particle generator, which is connected to one end of an electrostatic neutralizer through a pipeline; the other end of the electrostatic neutralizer is connected to an evenly-mixing box through a pipeline; the lower end of the evenly-mixing box is connected to a flow divider, and the divider is connected to the inlets of a PM10 cutting head and a TSP cutting head. The calibration system is suitable for various dusts such as road dust, ISO dust, SAE dust, PSL dry powder, and the like, and the measurement error is very small.
Description
Technical field
The present invention relates to a kind of dust calibration system.
Background technology
At present, digital dust instrument has been widely used in IAQ (indoor air quality) detection, workplace air quality testing, mine dust concentration detection and open-air quality testing.Different manufacturers is not quite similar to the dust instrument name of its production, as digital dust instrument, Intelligent Digital dust instrument, micro computer dust instrument, respirable dust instrument, explosion-proof type dust instrument etc.On the whole, these instruments can be referred to as dust instrument, are the instrument of dust granules mass concentration in testing environment air.Dust instrument can be divided into two kinds of light scattering formula dust instrument and piezoelectric balance formula dust instruments according to measuring principle.Light scattering formula dust instrument is measured bug dust concentration according to dust granules to swashing scattering of light flux, and this quasi-instrument constructs relatively simply, responds fast, easy to maintenance, for the main product of current digital dust instrument, accounts for the more than 90% of the total market size.But the each producer of light scattering formula dust instrument light source used, detector and light chamber are not quite similar, before instrument dispatches from the factory, scaling method used is not quite similar, cause response curve and the accuracy of instrument to vary, record mass concentration difference under same environment larger, use and make troubles to user, data comparability is poor.
Summary of the invention
For above-mentioned defect and the problem of prior art, the object of the invention has been to provide a kind of dust calibration system of data good comparability.
In order to achieve the above object, the invention provides following technical scheme:
A kind of dust calibration system, comprise monodisperse particle generator, described monodisperse particle generator is connected with one end of electrostatic charge neutralization by pipeline, the other end of described electrostatic charge neutralization is connected with even blending bin by pipeline, the described even very lower end of mould assembling is connected with shunt, and described shunt is connected with the entrance of PM10 cutting head and TSP cutting head respectively;
Described PM10 cutting head exit is provided with the first folder holder, the first folder holder described in the first filter membrane is installed in described the first folder holder and is connected with proving flowmeter, and described proving flowmeter is connected with the first pump;
Described TSP cutting head exit is provided with the second folder holder, the second folder holder described in the second filter membrane is installed in described the second folder holder and is connected with proving flowmeter, and described proving flowmeter is connected with the second pump.
Further, described the first folder holder hold in the palm with the first proving flowmeter and the second folder and the second proving flowmeter between be equipped with operation valve.
Further, described even blending bin and single dispersion are equipped with high efficiency particle air filter on ion generator.
Further, described the first filter membrane and the second filter membrane are 7mmPTFE filter membrane.
The invention has the beneficial effects as follows, of the present invention due to monodisperse particle generator being installed, therefore the dust that this system is applicable to various particles is as dust on the roads, ISO dirt, SAE dirt, PSL dry powder etc., particle size range: 0.1～150 μ m, case endoparticle concentration: 0.02～100mg/m
3can regulate and control continuously stability: twice measurement result deviation < 5%.
Brief description of the drawings
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the structural representation of dust calibration system of the present invention.
Embodiment
Below in conjunction with accompanying drawing of the present invention, technical scheme of the present invention is clearly and completely described, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiment.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtaining under creative work prerequisite, belong to the scope of protection of the invention.
As shown in Figure 1, a kind of dust calibration system disclosed by the invention, comprise monodisperse particle generator, described monodisperse particle generator is connected with one end of electrostatic charge neutralization by pipeline, the other end of described electrostatic charge neutralization is connected with even blending bin by pipeline, the described even very lower end of mould assembling is connected with shunt, and described shunt is connected with the entrance of PM10 cutting head and TSP cutting head respectively;
Described PM10 cutting head exit is provided with the first folder holder, the first folder holder described in the first filter membrane is installed in described the first folder holder and is connected with proving flowmeter, and described proving flowmeter is connected with the first pump;
Described TSP cutting head exit is provided with the second folder holder, the second folder holder described in the second filter membrane is installed in described the second folder holder and is connected with proving flowmeter, and described proving flowmeter is connected with the second pump.
Preferred technical scheme, is equipped with operation valve between described the first folder holder and the first proving flowmeter and the second folder holder and the second proving flowmeter.
Preferred technical scheme, described even blending bin and single dispersion are equipped with high efficiency particle air filter on ion generator.
Preferred technical scheme, described the first filter membrane and the second filter membrane are 7mmPTFE filter membrane.
This calibration system needs the single PSL of dispersion particle (as 5 microns, 8 microns, 10 microns, 12 microns, 15 microns etc.) of at least 5 kinds of particle diameters.To the dry powder sample of every kind of particle diameter, need to occur out with low dose of dust fan diffuser, after electrostatic charge neutralization, enter even blending bin.Aerosol particle is gathered out by isokinetic sampling's head after mixing with clean diluent air in even blending bin.The aerosol particle that extraction comes enters respectively PM-10 entrance to be measured and TSP entrance by bilateral isocon, two parts flow is set to the rated flow of dust instrument by operation valve, on the PTFE filter membrane of collected two 47mm of aerosol particle difference, under same traffic, gather same time, then take off filter membrane and weigh.The very cutting efficiency of PM-10 entrance of ratio of the collected particle weight of two filter membranes.The cutting efficiency of making respectively PM-10 entrance under 5 kinds of particle diameters, draws cutting curve, and the particle diameter of corresponding 50% cutting efficiency is cut point, judges that whether this cut point is consistent with the cut point of instrument nominal.
The above; be only the specific embodiment of the present invention, but protection scope of the present invention is not limited to this, any be familiar with those skilled in the art the present invention disclose technical scope in; can expect easily changing or replacing, within all should being encompassed in protection scope of the present invention.Therefore, protection scope of the present invention should described be as the criterion with the protection domain of claim.
Claims (4)
1. a dust calibration system, it is characterized in that, comprise monodisperse particle generator, described monodisperse particle generator is connected with one end of electrostatic charge neutralization by pipeline, the other end of described electrostatic charge neutralization is connected with even blending bin by pipeline, the described even very lower end of mould assembling is connected with shunt, and described shunt is connected with the entrance of PM10 cutting head and TSP cutting head respectively;
Described PM10 cutting head exit is provided with the first folder holder, the first folder holder described in the first filter membrane is installed in described the first folder holder and is connected with proving flowmeter, and described proving flowmeter is connected with the first pump;
Described TSP cutting head exit is provided with the second folder holder, the second folder holder described in the second filter membrane is installed in described the second folder holder and is connected with proving flowmeter, and described proving flowmeter is connected with the second pump.
2. dust calibration system according to claim 1, is characterized in that, between described the first folder holder and the first proving flowmeter and the second folder holder and the second proving flowmeter, is equipped with operation valve.
3. dust calibration system according to claim 1, is characterized in that, described even blending bin and single dispersion are equipped with high efficiency particle air filter on ion generator.
4. dust calibration system according to claim 1, is characterized in that, described the first filter membrane and the second filter membrane are 7mmPTFE filter membrane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410271051.8A CN104111217A (en) | 2014-06-18 | 2014-06-18 | Dust calibration system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410271051.8A CN104111217A (en) | 2014-06-18 | 2014-06-18 | Dust calibration system |
Publications (1)
| Publication Number | Publication Date |
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| CN104111217A true CN104111217A (en) | 2014-10-22 |
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| CN201410271051.8A Pending CN104111217A (en) | 2014-06-18 | 2014-06-18 | Dust calibration system |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104865166A (en) * | 2015-06-19 | 2015-08-26 | 天津开发区合普工贸有限公司 | Calibration device for realizing accurately quantified dust material diffusion test |
| CN105043954A (en) * | 2015-08-27 | 2015-11-11 | 河南省计量科学研究院 | Calibration system and calibration method for digital dust meter |
| CN106769728A (en) * | 2016-12-28 | 2017-05-31 | 中国计量科学研究院 | PM2.5 quality and concentration monitor calibrating installations |
| CN107014796A (en) * | 2017-05-10 | 2017-08-04 | 广东省计量科学研究院（华南国家计量测试中心） | A kind of system and method for the cutting efficiency of quick measurement sampler |
| CN107860692A (en) * | 2017-11-01 | 2018-03-30 | 缪荣明 | Dust concentration caliberating device and scaling method in dust work environment |
| CN108786508A (en) * | 2018-05-18 | 2018-11-13 | 中国建筑科学研究院有限公司 | Test dust generation device and method for simulating particle size distribution characteristics of atmospheric dust |
| CN110044784A (en) * | 2019-04-01 | 2019-07-23 | 赵卓慧 | A kind of standard particle mist generating device system for PM2.5 pick up calibration |
| CN114486440A (en) * | 2022-01-27 | 2022-05-13 | 山东大学 | Particulate matter mixing system and detection instrument calibration method |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104865166B (en) * | 2015-06-19 | 2017-05-24 | 天津开发区合普工贸有限公司 | Calibration device for realizing accurately quantified dust material diffusion test |
| CN104865166A (en) * | 2015-06-19 | 2015-08-26 | 天津开发区合普工贸有限公司 | Calibration device for realizing accurately quantified dust material diffusion test |
| CN105043954B (en) * | 2015-08-27 | 2017-12-08 | 河南省计量科学研究院 | The calibration system and its scaling method of digital dust instrument |
| CN105043954A (en) * | 2015-08-27 | 2015-11-11 | 河南省计量科学研究院 | Calibration system and calibration method for digital dust meter |
| CN106769728A (en) * | 2016-12-28 | 2017-05-31 | 中国计量科学研究院 | PM2.5 quality and concentration monitor calibrating installations |
| CN107014796B (en) * | 2017-05-10 | 2018-01-12 | 广东省计量科学研究院（华南国家计量测试中心） | A kind of system and method for the cutting efficiency of quick measurement sampler |
| CN107014796A (en) * | 2017-05-10 | 2017-08-04 | 广东省计量科学研究院（华南国家计量测试中心） | A kind of system and method for the cutting efficiency of quick measurement sampler |
| CN107860692A (en) * | 2017-11-01 | 2018-03-30 | 缪荣明 | Dust concentration caliberating device and scaling method in dust work environment |
| CN107860692B (en) * | 2017-11-01 | 2020-03-24 | 缪荣明 | Dust concentration calibration device and calibration method in dust operation environment |
| CN108786508A (en) * | 2018-05-18 | 2018-11-13 | 中国建筑科学研究院有限公司 | Test dust generation device and method for simulating particle size distribution characteristics of atmospheric dust |
| CN108786508B (en) * | 2018-05-18 | 2024-03-08 | 中国建筑科学研究院有限公司 | Test dust generation device and method for simulating particle size distribution characteristics of atmospheric dust |
| CN110044784A (en) * | 2019-04-01 | 2019-07-23 | 赵卓慧 | A kind of standard particle mist generating device system for PM2.5 pick up calibration |
| CN114486440A (en) * | 2022-01-27 | 2022-05-13 | 山东大学 | Particulate matter mixing system and detection instrument calibration method |
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Application publication date: 20141022 |