CN104111216A - PM10/PM2.5 cutting head and filter membrane calibration system - Google Patents
PM10/PM2.5 cutting head and filter membrane calibration system Download PDFInfo
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- CN104111216A CN104111216A CN201410271039.7A CN201410271039A CN104111216A CN 104111216 A CN104111216 A CN 104111216A CN 201410271039 A CN201410271039 A CN 201410271039A CN 104111216 A CN104111216 A CN 104111216A
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Abstract
The invention provides a PM10/PM2.5 cutting head and filter membrane calibration system, which comprises an evenly-mixing box. The upper end of the evenly-mixing box is connected to an electrostatic neutralizer through a pipeline, the electrostatic neutralizer is connected to a diffusion drier, and the diffusion drier is connected to a PSL emulsion atomizer. The lower end of the evenly-mixing box is provided with an aerogel splitter, which is divided into an upstream pipeline and a downstream pipeline. A PM10/PM2.5 cutting head is arranged on the downstream pipeline, is controlled by a first upstream/downstream switching valve, and is also connected to a high efficient filter, which is connected to a standard flow meter, which is connected to a pump. A second upstream/downstream switching valve is arranged on the downstream pipeline and is also connected to an aerogel diameter spectrum instrument.
Description
Technical field
The present invention relates to a kind of PM10PM2.5 cutting head and filter membrane 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, and the main product for current digital dust instrument, accounts for the more than 90% of the total market size.But 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, the mass concentration difference recording under same environment is larger, to user, use and make troubles, data comparability is poor.
Summary of the invention
Above-mentioned defect and problem for prior art; the object of the invention has been to provide a kind of design air-flow without dead angle; long air hold-up time 21s, violent, the average turbulence intensity of inner smooth turbulent flow reaches more than 90%, the PM10PM2.5 cutting head that particle mixes and filter membrane calibration system.
In order to achieve the above object, the invention provides following technical scheme:
A kind of PM10PM2.5 cutting head and filter membrane calibration system, comprise even blending bin, the upper end of described even blending bin connects electrostatic charge neutralization by pipeline, and described electrostatic charge neutralization connects diffusion dryer, and described diffusion dryer is connected with PSL suspension atomization generator;
The lower end of described even blending bin is provided with gasoloid shunt, described gasoloid shunt is divided into upstream and downstream, PM10/PM2.5 cutting head is installed in described downstream line, described PM10/PM2.5 cutting head is controlled by the first upstream and downstream transfer valve, described PM10/PM2.5 cutting head also connects high efficiency particulate air filter, described high efficiency particulate air filter is connection standard flowmeter also, and described proving flowmeter also connects pump; Described downstream line is provided with the second upstream and downstream transfer valve, and described the second upstream and downstream transfer valve also connects gasoloid particle diameter spectrometer;
The upper end of described mixed gas case is tertiary filter, freeze drier and air compressor also, and described tertiary filter, freeze drier and air compressor are connected by pipeline successively.
Further, described even blending bin also connects the second high efficiency particulate air filter, and described the second high efficiency particulate air filter also connects pump, and described pump and the second high efficiency particulate air filter are directly also provided with by-pass valve control.
Further, in the first upstream and downstream transfer valve and upstream line, be equipped with switching pipeline with the second upstream and downstream transfer valve and downstream line.
The invention has the beneficial effects as follows, Mk system of the present invention design air-flow is without dead angle, long air hold-up time 21s, and violent, the average turbulence intensity of inner smooth turbulent flow reaches more than 90%.
Accompanying drawing explanation
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 skills, 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 PM10PM2.5 cutting head of the present invention and filter membrane calibration system.
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, rather than whole embodiment.Embodiment based in the present invention, those of ordinary skills, 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 PM10PM2.5 cutting head disclosed by the invention and filter membrane calibration system, comprise even blending bin, the upper end of described even blending bin connects electrostatic charge neutralization by pipeline, described electrostatic charge neutralization connects diffusion dryer, and described diffusion dryer is connected with PSL suspension atomization generator;
The lower end of described even blending bin is provided with gasoloid shunt, described gasoloid shunt is divided into upstream and downstream, PM10/PM2.5 cutting head is installed in described downstream line, described PM10/PM2.5 cutting head is controlled by the first upstream and downstream transfer valve, described PM10/PM2.5 cutting head also connects high efficiency particulate air filter, described high efficiency particulate air filter is connection standard flowmeter also, and described proving flowmeter also connects pump; Described downstream line is provided with the second upstream and downstream transfer valve, and described the second upstream and downstream transfer valve also connects gasoloid particle diameter spectrometer;
The upper end of described mixed gas case is tertiary filter also, freeze drier and air compressor, described tertiary filter, freeze drier is connected by pipeline successively with air compressor, the volume of described mixed gas case is about 120L, the circular cylinder binding for two ends band arc, diameter is 35CM, be highly 130cm, be provided with internal diameter 6mm gasoloid entrance, a diluent air entrance, material is 304 corrosion resistant plates, internal face is all through the special processing of scraping, surfaceness is less than 0.0025mm, to prevent static and particle absorption, design air-flow is without dead angle, long air hold-up time 21s, inner smooth turbulent flow is violent, average turbulence intensity reaches more than 90%, particle mixes, granule density and the particle diameter distribution bias of having guaranteed different instrument collections are no more than 5%.
Preferred technical scheme, described even blending bin also connects the second high efficiency particulate air filter, and described the second high efficiency particulate air filter also connects pump, and described pump and the second high efficiency particulate air filter are directly also provided with by-pass valve control.
Preferred technical scheme, is equipped with switching pipeline with the second upstream and downstream transfer valve and downstream line in the first upstream and downstream transfer valve and upstream line.
The above; be only the specific embodiment of the present invention, but protection scope of the present invention is not limited to this, is anyly familiar with those skilled in the art in the technical scope that the present invention discloses; 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 be as the criterion by the described protection domain with claim.
Claims (3)
1. a PM10PM2.5 cutting head and filter membrane calibration system, it is characterized in that, comprise even blending bin, the upper end of described even blending bin connects electrostatic charge neutralization by pipeline, described electrostatic charge neutralization connects diffusion dryer, and described diffusion dryer is connected with PSL suspension atomization generator;
The lower end of described even blending bin is provided with gasoloid shunt, described gasoloid shunt is divided into upstream and downstream, PM10/PM2.5 cutting head is installed in described downstream line, described PM10/PM2.5 cutting head is controlled by the first upstream and downstream transfer valve, described PM10/PM2.5 cutting head also connects high efficiency particulate air filter, described high efficiency particulate air filter is connection standard flowmeter also, and described proving flowmeter also connects pump; Described downstream line is provided with the second upstream and downstream transfer valve, and described the second upstream and downstream transfer valve also connects gasoloid particle diameter spectrometer;
The upper end of described mixed gas case is tertiary filter, freeze drier and air compressor also, and described tertiary filter, freeze drier and air compressor are connected by pipeline successively.
2. PM10PM2.5 cutting head according to claim 1 and filter membrane calibration system, it is characterized in that, described even blending bin also connects the second high efficiency particulate air filter, and described the second high efficiency particulate air filter also connects pump, and described pump and the second high efficiency particulate air filter are directly also provided with by-pass valve control.
3. PM10PM2.5 cutting head according to claim 1 and filter membrane calibration system, is characterized in that, in the first upstream and downstream transfer valve and upstream line, is equipped with switching pipeline with the second upstream and downstream transfer valve and downstream line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410271039.7A CN104111216A (en) | 2014-06-18 | 2014-06-18 | PM10/PM2.5 cutting head and filter membrane calibration system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410271039.7A CN104111216A (en) | 2014-06-18 | 2014-06-18 | PM10/PM2.5 cutting head and filter membrane calibration system |
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| CN104111216A true CN104111216A (en) | 2014-10-22 |
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| CN201410271039.7A Pending CN104111216A (en) | 2014-06-18 | 2014-06-18 | PM10/PM2.5 cutting head and filter membrane calibration system |
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Cited By (9)
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| CN104865106A (en) * | 2015-06-15 | 2015-08-26 | 华北电力大学（保定） | Microorganism aerosol sampling device |
| 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 |
| CN105067495A (en) * | 2015-07-17 | 2015-11-18 | 北京理工大学 | Filtration efficiency calibration system for air filtration equipment |
| CN105486619A (en) * | 2016-02-01 | 2016-04-13 | 河南省计量科学研究院 | System for calibrating particulate matter measuring instruments and calibrating method of system |
| 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 |
| CN107421863A (en) * | 2017-09-25 | 2017-12-01 | 北京航空航天大学 | It is a kind of to combine the PM that monodisperse aerosol occurs1Cutting head Performance Test System |
| CN107560986A (en) * | 2017-08-30 | 2018-01-09 | 合肥福瞳光电科技有限公司 | A kind of multichannel PM2.5 detection means |
| CN109459536A (en) * | 2018-12-29 | 2019-03-12 | 徐州治鼎环境科技有限公司 | A kind of high humidity low concentration dust generator |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104865106A (en) * | 2015-06-15 | 2015-08-26 | 华北电力大学（保定） | Microorganism aerosol sampling device |
| CN104865106B (en) * | 2015-06-15 | 2017-06-20 | 华北电力大学（保定） | A kind of microbial aerosol sampling apparatus |
| CN105067495A (en) * | 2015-07-17 | 2015-11-18 | 北京理工大学 | Filtration efficiency calibration system for air filtration equipment |
| 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 |
| 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 |
| CN105486619A (en) * | 2016-02-01 | 2016-04-13 | 河南省计量科学研究院 | System for calibrating particulate matter measuring instruments and calibrating method of system |
| 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 |
| CN107560986A (en) * | 2017-08-30 | 2018-01-09 | 合肥福瞳光电科技有限公司 | A kind of multichannel PM2.5 detection means |
| CN107421863A (en) * | 2017-09-25 | 2017-12-01 | 北京航空航天大学 | It is a kind of to combine the PM that monodisperse aerosol occurs1Cutting head Performance Test System |
| CN109459536A (en) * | 2018-12-29 | 2019-03-12 | 徐州治鼎环境科技有限公司 | A kind of high humidity low concentration dust generator |
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Application publication date: 20141022 |