CN105738579A - Treatment method for improving atmospheric particulate measurement precision - Google Patents
Treatment method for improving atmospheric particulate measurement precision Download PDFInfo
- Publication number
- CN105738579A CN105738579A CN201610280455.2A CN201610280455A CN105738579A CN 105738579 A CN105738579 A CN 105738579A CN 201610280455 A CN201610280455 A CN 201610280455A CN 105738579 A CN105738579 A CN 105738579A
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- air
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- pretreatment
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/0004—Gaseous mixtures, e.g. polluted air
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/0004—Gaseous mixtures, e.g. polluted air
- G01N33/0009—General constructional details of gas analysers, e.g. portable test equipment
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D27/00—Simultaneous control of variables covered by two or more of main groups G05D1/00 - G05D25/00
- G05D27/02—Simultaneous control of variables covered by two or more of main groups G05D1/00 - G05D25/00 characterised by the use of electric means
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Physics & Mathematics (AREA)
- Physics & Mathematics (AREA)
- Biochemistry (AREA)
- Analytical Chemistry (AREA)
- General Health & Medical Sciences (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Combustion & Propulsion (AREA)
- Food Science & Technology (AREA)
- Medicinal Chemistry (AREA)
- Automation & Control Theory (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The invention discloses a portable pollutant measuring and analyzing device with an air pretreatment function. Before measurement and analysis, to-be-tested air is firstly subjected to constant temperature, constant humidity and constant pressure treatment, then dependent of atmospheric pollution particulate monitoring on the environment can be greatly reduced, and the monitoring precision can be improved.
Description
Technical field
The present invention relates to air analysis field, in particular it relates to the measurement analysis of airborne particulates, the especially portable pollutant measurement analysis that can be used for outdoor.
Background technology
Atmospheric particulates are also airborne particulates, are the general names of various solid-states and the liquid particles shape material existed in air, and usual seen dust, fumigation, cigarette, mist, haze etc. broadly fall into this category.The size of airborne particulates and its character are closely related, be the sampling of atmospheric pollution thing with control technology one of main characteristic considered.Size according to airborne particulates is typically divided into PM1.0, PM2.5, PM5, PM10 etc..
The measuring method of the monitoring index of these atmospheric pollution particulate matters specifically includes that (1) gravimetric method；(2) Beta ray method；(3) light scattering method；(4) laser scattering method etc..These method testing precision all depend critically upon test environment, and the monitoring of atmospheric pollution particulate matter is all had serious impact by the temperature of air, humidity, pressure etc..
Owing to gravimetric method and Beta ray method need main equipment to measure, cost requirement is high, performance difficulty, therefore portable pollutant measurement analytical equipment is based on light scattering method and laser scattering method, and Portable pollutant measurement analysis device has the market prospect of broadness because of low cost and portability.Current Portable pollutant measurement analysis device is limited to measure room air, because the temperature of outdoor air, humidity, pressure are all highly unstable, causes that measurement data distortion is serious, it is impossible to adopt.
Summary of the invention
It is an object of the invention to provide a kind of portable pollutant measurement analytical equipment with air pretreatment function so that measurement data be attributed to stablize accurate.
To achieve these goals, the present invention adopts the following technical scheme that
For the air pretreatment device that air pollutants are measured, including air inlet, constant temperature and/or constant voltage and/or constant-moisture device, controller and air vent.
Described thermostat includes adding heat pipe and thermometer.
Described constant voltage equipment includes gas bleeder valve and piezometer.
Described constant-moisture device includes drying device and drimeter.
Described drying device is the container comprising desiccant.
Air inlet, constant temperature and/or constant voltage and/or constant-moisture device are electrically connected with the controller.
Described air is indoor and/or outdoor air.
Air pollutants measurement apparatus, including air inlet, blower fan, air pretreatment device, contaminant measurement device, air vent, air to be measured enters contaminant measurement device after pretreatment.
Described air pollutants measurement apparatus is portable.
Air to be measured was first done constant temperature, constant humidity and constant voltage before measuring analysis and processes by the portable pollutant measurement analytical equipment with air pretreatment function of the present invention, atmospheric pollution particle monitoring dependence to environment is greatly reduced, improves the precision of monitoring.
Accompanying drawing explanation
Fig. 1 illustrates the pollutant measurement analytical equipment comprising pretreatment unit of the present invention；
Detailed description of the invention
The pollutant measurement analytical equipment of the present invention is illustrated referring to Fig. 1.Air containing pollutant is introduced into constant temperature, constant voltage, constant humidity tank, and this tank includes the thermostat of air, constant voltage equipment and constant-moisture device.
Thermostat can include heating and/or chiller, temperature measuring equipment, and the two is electrically connected with the controller.Temperature measuring equipment connects temperature controller, when temperature measuring equipment is by temperature value, or too high/too low comparative result information that measurement temperature and standard temperature value compare sends controller to, and controller sends the instruction heated or cool down according to the temperature information accepted to heating or chiller.Thermostat can comprise heating and chiller simultaneously, it is possible to only comprises heating or chiller.The control of heating for adding heat pipe, can be realized heat time heating time by heater by control.Alternatively, standard temperature is 40 degrees Celsius, only includes adding heat pipe and thermometer in thermostat.Standard temperature should not be too high, needs energy support on the one hand, is limited for mancarried device electric energy, and temperature too high on the other hand easily causes the pollutant in air and decomposes.
Constant voltage equipment can include pressue device and/or decompressor, piezometer, and the two is electrically connected with the controller.Piezometer is by atmospheric pressure value, or too high/too low comparative result information that measurement atmospheric pressure value and standard pressure value compare sends controller to, and controller sends the instruction pressurizeed or reduce pressure according to the pressure information accepted to pressurization or air releasing device.Constant voltage equipment can comprise pressurization and decompressor simultaneously, it is possible to only comprises pressurization or decompressor.Pressue device can be air pump, and decompressor can be gas bleeder valve, and the control of air pump and/or gas bleeder valve can be realized by control pressurization and/or disappointing time.Alternatively, standard pressure is 1 atmospheric pressure, only includes gas bleeder valve and piezometer in constant voltage equipment.
Constant-moisture device can include damping device and/or drying device, drimeter, and the two is electrically connected with the controller.Drimeter is by humidity value, or too high/too low comparative result information that measurement humidity value and standard humidity value compare sends controller to, and controller sends the instruction humidifying or drying according to the humidity information accepted to humidification or drying device.Constant voltage equipment can comprise humidification and drying device simultaneously, it is possible to only comprises humidification or drying device.Damping device can be aerosol apparatus, drying device can be comprise can moisture absorption desiccant container, condensing unit and drain pipe can be comprised, also can be U-shaped drying tube, the control of damping device and/or drying device by controlling humidification and/or can be realized drying time.Humidity value is more low more good, because light scattering method or laser scattering method utilize the Michaelis effect that light scattering on granule occurs, obtains the population in certain particle size range and then the pollutant levels obtained in air in this particle size range.And the hydrone meeting adsorption fouling thing in air so that the particle diameter of contaminant particle presents several times to be increased, the distortion significantly of concentration value measured value.Constant-moisture device only includes drying device and drimeter.
The present invention, by increasing the mode of constant temperature, constant voltage, constant humidity tank in airborne particulates measurement device front end, will enter the air sample that air sample process is normal pressure, temperature, humidity of measurement device.Normal pressure, temperature, humidity air sample enter back into atmospheric pollution particulate matter measurement device measurement.So, the air sample that measurement device processes just is not affected by, it is not necessary to carries out various ambient parameter compensation, is optimized for specific pressure, temperature, humidity, thus increasing substantially the certainty of measurement of atmospheric pollution particulate matter.
Claims (9)
1. the air pretreatment device measured for air pollutants, including air inlet, constant temperature and/or constant voltage and/or constant-moisture device, controller and air vent.
2. air pretreatment device as claimed in claim 1, described thermostat includes adding heat pipe and thermometer.
3. air pretreatment device as claimed in claim 1, described constant voltage equipment includes gas bleeder valve and piezometer.
4. air pretreatment device as claimed in claim 1, described constant-moisture device includes drying device and drimeter.
5. air pretreatment device as claimed in claim 4, described drying device is the container comprising desiccant.
6. air pretreatment device as claimed in claim 1, air inlet, constant temperature and/or constant voltage and/or constant-moisture device are electrically connected with the controller.
7. air pretreatment device as claimed in claim 1, described air is indoor and/or outdoor air.
8. an air pollutants measurement apparatus, including the air pretreatment device described in air inlet, blower fan, claim 1-7, contaminant measurement device, air vent, air to be measured enters contaminant measurement device after pretreatment.
9. air pollutants measurement apparatus as claimed in claim 7, described air pollutants measurement apparatus is portable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610280455.2A CN105738579A (en) | 2016-05-03 | 2016-05-03 | Treatment method for improving atmospheric particulate measurement precision |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610280455.2A CN105738579A (en) | 2016-05-03 | 2016-05-03 | Treatment method for improving atmospheric particulate measurement precision |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105738579A true CN105738579A (en) | 2016-07-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610280455.2A Pending CN105738579A (en) | 2016-05-03 | 2016-05-03 | Treatment method for improving atmospheric particulate measurement precision |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110319871A (en) * | 2019-05-09 | 2019-10-11 | 广州长德环境研究院有限公司 | A kind of surrounding air gaseous pollutant monitors sampling general pipeline gas circuit monitoring system automatically |
| CN110320331A (en) * | 2019-08-02 | 2019-10-11 | 汉威科技集团股份有限公司 | A kind of Atmosphere Environment Monitoring System Bases |
| CN110864942A (en) * | 2019-10-11 | 2020-03-06 | 浙江华奕航空科技有限公司 | Real-time preprocessing device of atmospheric sample |
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| CN101368921A (en) * | 2008-09-08 | 2009-02-18 | 无锡尚沃生物科技有限公司 | High sensitivity and high-selective gas transducer |
| CN101644643A (en) * | 2009-08-29 | 2010-02-10 | 宇星科技发展(深圳)有限公司 | Sample air pretreatment device for coke furnace inorganization emission source and method thereof |
| CN201488901U (en) * | 2009-08-29 | 2010-05-26 | 宇星科技发展(深圳)有限公司 | Sample gas pretreatment device for inorganization emission source of coke furnace |
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| CN201955289U (en) * | 2010-12-16 | 2011-08-31 | 武汉市天虹仪表有限责任公司 | Laser scattering dust measuring instrument |
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| CN103712832A (en) * | 2013-12-30 | 2014-04-09 | 聚光科技(杭州)股份有限公司 | Atmospheric particulate sampling device |
| CN205002802U (en) * | 2015-10-14 | 2016-01-27 | 华北电力大学（保定） | System for on -line monitoring atmospheric pollutants |
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2016
- 2016-05-03 CN CN201610280455.2A patent/CN105738579A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101368921A (en) * | 2008-09-08 | 2009-02-18 | 无锡尚沃生物科技有限公司 | High sensitivity and high-selective gas transducer |
| CN101644643A (en) * | 2009-08-29 | 2010-02-10 | 宇星科技发展(深圳)有限公司 | Sample air pretreatment device for coke furnace inorganization emission source and method thereof |
| CN201488901U (en) * | 2009-08-29 | 2010-05-26 | 宇星科技发展(深圳)有限公司 | Sample gas pretreatment device for inorganization emission source of coke furnace |
| CN102109487A (en) * | 2009-12-28 | 2011-06-29 | 华瑞科学仪器(上海)有限公司 | Ultra-low concentration gas sensor |
| CN103068456A (en) * | 2010-05-10 | 2013-04-24 | 热费希尔科学公司 | Particulate matter monitor |
| CN201955289U (en) * | 2010-12-16 | 2011-08-31 | 武汉市天虹仪表有限责任公司 | Laser scattering dust measuring instrument |
| CN102539637A (en) * | 2012-02-06 | 2012-07-04 | 中国检验检疫科学研究院 | Environment testing device |
| CN103712832A (en) * | 2013-12-30 | 2014-04-09 | 聚光科技(杭州)股份有限公司 | Atmospheric particulate sampling device |
| CN205002802U (en) * | 2015-10-14 | 2016-01-27 | 华北电力大学（保定） | System for on -line monitoring atmospheric pollutants |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110319871A (en) * | 2019-05-09 | 2019-10-11 | 广州长德环境研究院有限公司 | A kind of surrounding air gaseous pollutant monitors sampling general pipeline gas circuit monitoring system automatically |
| CN110320331A (en) * | 2019-08-02 | 2019-10-11 | 汉威科技集团股份有限公司 | A kind of Atmosphere Environment Monitoring System Bases |
| CN110864942A (en) * | 2019-10-11 | 2020-03-06 | 浙江华奕航空科技有限公司 | Real-time preprocessing device of atmospheric sample |
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