CN102866087A - Method for measuring particle size distribution of externally discharged oil fume particulate pollutants of urban catering kitchens - Google Patents
Method for measuring particle size distribution of externally discharged oil fume particulate pollutants of urban catering kitchens Download PDFInfo
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- CN102866087A CN102866087A CN2012103738969A CN201210373896A CN102866087A CN 102866087 A CN102866087 A CN 102866087A CN 2012103738969 A CN2012103738969 A CN 2012103738969A CN 201210373896 A CN201210373896 A CN 201210373896A CN 102866087 A CN102866087 A CN 102866087A
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Abstract
The invention discloses a method for measuring particle size distribution of externally discharged oil fume particulate pollutants of urban catering kitchens. The method comprises the steps of extracting gas in an oil fume exhaust funnel, enabling the gas to enter a polytetrafluoroethylene sleeve of a collecting filter core, taking out a filter drum after 15min, and placing the filter drum in a dryer to enable the filter drum to be constant-weight; cutting the constant-weight filter drum into two halves and then cutting the filter drum into four sections, placing the filter drum in a measuring cup containing 50mL of anhydrous alcohol, and performing ultrasonic elution; enabling the measuring cup containing 40mL of sample solution to be placed in a sample cell of a laser particle analyzer after 5min, starting to selecting a data model to measure particle size distribution of the oil fume particulate pollutants when a screen displays that light-shading ratio index value is between 10% and 25%, drawing a frequency distribution and cumulative distribution curve graph, and finding out particle size characteristic distribution parameters of mode diameter, medium diameter and the like. The method has the advantage that the particle size distribution rule of sample particle swarm can be measured rapidly and accurately.
Description
Technical field
The present invention relates to the method for a kind of urban catering kitchen other cooking-fume discharging particulate pollutant particle size distribution measuring---the food and drink kitchen other cooking-fume discharging particulate pollutant that will collect on the filter cylinder is eluted in the alcoholic solution with ultrasound wave, then adopt laser particle analyzer to measure, obtain particle size distribution data table and particle diameter distribution plan.
Background technology
Oil smoke is the product that edible oil and food form under heating condition, on form, the same particulate pollutant and the gaseous contaminant of containing of flue gas of this oil smoke and the generation of industrial furnace combustion fuel, but particle concentration is far longer than volatile matter concentration in the oil smoke, be about 8～25 times, and mainly be that as main, its concentration accounts for 60.04%～80% of total particulate concentration for pellet (inha1able Particles is called for short IP) take particle diameter＜10 μ m.Soot particles concentration and particle diameter thereof distribute relevant with cooking temp, and cooking temp is higher, and particle concentration is just higher in the oil smoke of generation.
Particle is divided into again 2 kinds of solid, liquid, so the cooking fume gas bag contains gas, liquid, solid three-phase pollutant.Because it can be suspended in the air for a long time, easily sucked the respiratory tract deep by the people, cause poor appetite, One's spirits are drooping, the symptom such as feel run-down; Oily particle belongs to the stickiness particle simultaneously, in case enter household electrical appliance inside, just can adhere to the surface of each component in the machine.Make component or printed circuit board surface form one deck oily dirt.This oily dirt has certain conductive capability, can cause high-frequency circuit or high-tension circuit sparking in the machine, causes component wear.In case adhere to wall or implements surface, be easy to microorganism and procreation in the absorbed air, corrode wall, or the color blackening, affect attractive in appearance.
In recent years, the haze weather of the increasing city of China frequent occurrence causes the public's attention just day by day.The major pollutants that form haze weather are Inhalable Particles of Atmospheres, wherein especially with fine particle (PM2.5), namely less than the particle of 2 .5 microns for very, it accounts for 70%～80% in pellet.Wherein catering trade discharging smoke particle thing PM2.5 mass concentration is the same day 8 ~ 35 times of ambient atmosphere PM2.5 mass concentration, and PM1.0 accounts for 50% ~ 85% in the mass concentration of PM2.5.Food and drink source emission particle exists mainly with solid-state and liquid particles thing pattern, and the chemical composition mass percent is organism, inorganic ions and elemental carbon from more to less successively, accounts for respectively about 70%, 5% ~ 11% and less than 2% of PM2.5 mass concentration.Food and drink source emission fine particle is suitable to the discharging in the contribution of organic particulate matter and traffic source, becomes one of main source of fine particle organic particulate matter.
Therefore, control Fine Particles emission source is main path and the method that the control haze weather occurs and airborne particulate pollutes.Particle diameter and distribution characteristics thereof are most important physical propertys, are fly-ash separator design, the topmost foundation of type selecting.Therefore, in order to select to be fit to the wet scrubber for the treatment of of simulated oil smoke, need to study the distribution situation of particle diameter in the cooking fume.
Summary of the invention
Embodiment:
(1) smoke particle sample collection: adopt intelligent flue dust (oil smoke) sampling thief (ME5101) to carry out the isokinetic sampling, extract the gas in the oil smoke aiutage, enter in the polytetrafluoroethylene sleeve that gathers filter core, the smoke particle pollutant is tackled, is collected in the sleeve by teflon membrane filter, after 15 minutes, filter cylinder is taken out, place the exsiccator constant weight.
(2) wash-out of smoke particle thing: the filter cylinder after step (1) constant weight is cut off into 2 half with scissors, be cut into again 4 sections, place the measuring cup that fills the 50mL anhydrous alcohol, carry out the ultrasound wave wash-out; After 5 minutes, take out 40mL solution and prepare to enter laser particle analyzer mensuration.
(3) smoke particle thing particle size distribution measuring: the measuring cup that step (2) is filled the 40mL sample solution is put into laser particle analyzer (LS-POP (III), the American-European gram in Zhuhai) in the sample cell, the screen display shading is 15% than desired value, and from test report, obtain following particle size distribution data table, take grain diameter as horizontal ordinate, make curve of frequency distribution figure and cumulative distribution curve figure, the particle diameter of finding out frequency distribution maximum (20.93%) is the many footpaths of 28.56 μ m(), cumulative distribution is that 50% particle diameter is 21.84 μ m(meso-position radius); The frequency distribution of oil smoke sample particle particle diameter and cumulative distribution relation see Table 1.
The frequency distribution of table 1 oil smoke sample particle particle diameter and cumulative distribution relation
Claims (1)
1. the method for a urban catering kitchen other cooking-fume discharging particulate pollutant particle size distribution measuring is characterized in that concrete steps are:
(1) smoke particle sample collection: adopt intelligent smoke dust sampling instrument to carry out the isokinetic sampling, extract the gas in the oil smoke aiutage, enter in the polytetrafluoroethylene sleeve that gathers filter core, the smoke particle pollutant is tackled, is collected in the sleeve by teflon membrane filter, after 15 minutes, filter cylinder is taken out, place the exsiccator constant weight;
(2) wash-out of smoke particle thing: the filter cylinder after step (1) constant weight is cut off into 2 half with scissors, be cut into again 4 sections, place the measuring cup that fills the 50mL anhydrous alcohol, carry out the ultrasound wave wash-out; After 5 minutes, take out 40mL solution and prepare to enter laser particle analyzer mensuration;
(3) smoke particle thing particle size distribution measuring: the measuring cup that step (2) is filled the 40mL sample solution is put into the sample cell of laser particle analyzer, the screen display shading namely begins to select data pattern to measure the distribution of smoke particle thing particle diameter between 10% ~ 25% than desired value, and from test report, obtain particle diameter distribution pattern and distributed data table, namely obtain take particle diameter as horizontal ordinate, account for the percentage of total population as the distribution curve of ordinate take certain diameter population, the particle diameter of percentage maximum is called many footpaths among the figure, and 50% particle diameter is called meso-position radius;
If shading not in 10% ~ 25% scope, then needs to add a small amount of six sodium metasilicate spreading agents than desired value, carried out ultrasonic oscillation 5 minutes, measure again.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2012103738969A CN102866087A (en) | 2012-10-04 | 2012-10-04 | Method for measuring particle size distribution of externally discharged oil fume particulate pollutants of urban catering kitchens |
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| CN2012103738969A CN102866087A (en) | 2012-10-04 | 2012-10-04 | Method for measuring particle size distribution of externally discharged oil fume particulate pollutants of urban catering kitchens |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104568692A (en) * | 2015-01-09 | 2015-04-29 | 中国计量学院 | Testing method for number concentration emission of superfine particles in vegetable stir-frying |
| CN104964891A (en) * | 2015-07-10 | 2015-10-07 | 北京市环境保护监测中心 | Detection method of no-clean particulate matter concentration as well as sampling apparatus and sampling device |
| CN106769712A (en) * | 2017-01-23 | 2017-05-31 | 桂林市环境监测中心站 | The assay method of particulate pollutant particle diameter distribution in motor vehicle exhaust |
| CN110672475A (en) * | 2019-09-05 | 2020-01-10 | 武汉东湖科创中试基地科技有限公司 | Method for detecting PM in indoor air |
| CN113252519A (en) * | 2021-06-01 | 2021-08-13 | 武汉云侦科技有限公司 | Method and device for measuring particle size distribution based on atomizing core |
| WO2022083044A1 (en) * | 2020-10-20 | 2022-04-28 | 华南师范大学 | Online measurement system and method for particle size distribution of atmospheric particulates |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0674892A (en) * | 1992-08-25 | 1994-03-18 | Fine Ceramics Center | Method and apparatus for measuring particle size distribution using laser diffraction scattering |
-
2012
- 2012-10-04 CN CN2012103738969A patent/CN102866087A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0674892A (en) * | 1992-08-25 | 1994-03-18 | Fine Ceramics Center | Method and apparatus for measuring particle size distribution using laser diffraction scattering |
Non-Patent Citations (3)
| Title |
|---|
| 卢珊珊等: "激光粒度仪测定煤粉粒度及分布的方法研究", 《中国粉体技术》 * |
| 国家环境保护总局，国家质量监督检验检疫总局: "GB18483-2001 饮食业油烟排放标准", 《中华人民共和国国家标准》 * |
| 谭德生等: "餐饮业油烟的颗粒物分析", 《环境科学》 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104568692A (en) * | 2015-01-09 | 2015-04-29 | 中国计量学院 | Testing method for number concentration emission of superfine particles in vegetable stir-frying |
| CN104964891A (en) * | 2015-07-10 | 2015-10-07 | 北京市环境保护监测中心 | Detection method of no-clean particulate matter concentration as well as sampling apparatus and sampling device |
| CN106769712A (en) * | 2017-01-23 | 2017-05-31 | 桂林市环境监测中心站 | The assay method of particulate pollutant particle diameter distribution in motor vehicle exhaust |
| CN110672475A (en) * | 2019-09-05 | 2020-01-10 | 武汉东湖科创中试基地科技有限公司 | Method for detecting PM in indoor air |
| WO2022083044A1 (en) * | 2020-10-20 | 2022-04-28 | 华南师范大学 | Online measurement system and method for particle size distribution of atmospheric particulates |
| CN113252519A (en) * | 2021-06-01 | 2021-08-13 | 武汉云侦科技有限公司 | Method and device for measuring particle size distribution based on atomizing core |
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Application publication date: 20130109 |