CN110361236A - A kind of the sampling evaluating apparatus and evaluation method of pesticide industry place volatility smell substance - Google Patents
A kind of the sampling evaluating apparatus and evaluation method of pesticide industry place volatility smell substance Download PDFInfo
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- 238000005070 sampling Methods 0.000 title claims abstract description 87
- 239000000126 substance Substances 0.000 title claims abstract description 78
- 239000000575 pesticide Substances 0.000 title claims abstract description 54
- 238000011156 evaluation Methods 0.000 title claims abstract description 23
- 238000007789 sealing Methods 0.000 claims abstract description 15
- 230000004907 flux Effects 0.000 claims abstract description 9
- 238000004891 communication Methods 0.000 claims abstract description 3
- 238000000034 method Methods 0.000 claims description 21
- 230000000694 effects Effects 0.000 claims description 12
- 238000001514 detection method Methods 0.000 claims description 8
- 238000012360 testing method Methods 0.000 claims description 4
- 239000000796 flavoring agent Substances 0.000 claims 6
- 235000019634 flavors Nutrition 0.000 claims 6
- 239000007789 gas Substances 0.000 abstract description 45
- 239000002689 soil Substances 0.000 abstract description 10
- 230000001360 synchronised effect Effects 0.000 abstract description 2
- 239000003570 air Substances 0.000 description 19
- YNQLUTRBYVCPMQ-UHFFFAOYSA-N Ethylbenzene Chemical compound CCC1=CC=CC=C1 YNQLUTRBYVCPMQ-UHFFFAOYSA-N 0.000 description 16
- 238000012544 monitoring process Methods 0.000 description 16
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 15
- 239000003344 environmental pollutant Substances 0.000 description 14
- 231100000719 pollutant Toxicity 0.000 description 14
- 238000005259 measurement Methods 0.000 description 11
- 230000007613 environmental effect Effects 0.000 description 9
- 239000005416 organic matter Substances 0.000 description 8
- 238000013461 design Methods 0.000 description 7
- 239000012080 ambient air Substances 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 6
- 239000006260 foam Substances 0.000 description 6
- 238000001179 sorption measurement Methods 0.000 description 6
- 238000004458 analytical method Methods 0.000 description 5
- 238000003795 desorption Methods 0.000 description 5
- 239000003205 fragrance Substances 0.000 description 5
- DNJIEGIFACGWOD-UHFFFAOYSA-N ethanethiol Chemical compound CCS DNJIEGIFACGWOD-UHFFFAOYSA-N 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 238000012545 processing Methods 0.000 description 4
- 238000005067 remediation Methods 0.000 description 4
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 3
- 229920006262 high density polyethylene film Polymers 0.000 description 3
- 239000002680 soil gas Substances 0.000 description 3
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 2
- 241001411320 Eriogonum inflatum Species 0.000 description 2
- 230000033228 biological regulation Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000003814 drug Substances 0.000 description 2
- 229910000037 hydrogen sulfide Inorganic materials 0.000 description 2
- 239000002917 insecticide Substances 0.000 description 2
- 238000005065 mining Methods 0.000 description 2
- 239000013618 particulate matter Substances 0.000 description 2
- 230000008439 repair process Effects 0.000 description 2
- 238000003900 soil pollution Methods 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical group [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 239000005864 Sulphur Substances 0.000 description 1
- 239000004809 Teflon Substances 0.000 description 1
- 229920006362 Teflon® Polymers 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000003905 agrochemical Substances 0.000 description 1
- 230000036760 body temperature Effects 0.000 description 1
- 238000009435 building construction Methods 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000013067 intermediate product Substances 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000002984 plastic foam Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 description 1
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 description 1
- 238000013441 quality evaluation Methods 0.000 description 1
- 238000011002 quantification Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 238000005527 soil sampling Methods 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 239000011493 spray foam Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
- 230000032258 transport Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
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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
- G01N1/02—Devices for withdrawing samples
- G01N1/22—Devices for withdrawing samples in the gaseous state
- G01N1/2294—Sampling soil gases or the like
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N30/00—Investigating or analysing materials by separation into components using adsorption, absorption or similar phenomena or using ion-exchange, e.g. chromatography or field flow fractionation
- G01N30/02—Column chromatography
-
- 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
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- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Immunology (AREA)
- General Health & Medical Sciences (AREA)
- Pathology (AREA)
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Physics & Mathematics (AREA)
- Biomedical Technology (AREA)
- Soil Sciences (AREA)
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- Combustion & Propulsion (AREA)
- Food Science & Technology (AREA)
- Medicinal Chemistry (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The invention patent discloses the sampling evaluating apparatus and evaluation method of a kind of pesticide industry place volatility smell substance, the sampling evaluating apparatus of the pesticide industry place volatility smell substance, including cabinet, thieff hatch, sealing-plug, fan and power supply unit, the bottom of box opens wide, upper surface sealing；The thieff hatch is located at cabinet upper surface, and box house is made to be in communication with the outside；The sealing-plug is located in thieff hatch for sealing thieff hatch, and the fan is located in the box body portion, and the power supply unit and fan are electrically connected.Present invention eliminates the interference of the weather conditions such as wind-force, wind direction；It ensure that the uniformity of volatility smell substance emission gases condition；The emission flux of smell substance is obtained, the discharge amount of every square metre of soil smell substance in the unit time can be extrapolated, can be used in the engineering effort of quantitative assessment peculiar smell covering closing measure；By the synchronous data for obtaining temperature and humidity in cabinet, convenient for analyzing the influence factor of peculiar smell.
Description
Technical field
The present invention relates to a kind of sampling evaluating apparatus of volatility smell substance and evaluation method more particularly to a kind of pesticides
The sampling evaluating apparatus and evaluation method of industry place volatility smell substance.
Background technique
Stench or smell pollution are the disturb residents pollutions closely related with people's living environment, belong to the important people's livelihood and ask
Topic.Platform statistics is managed according to national environmental protection report, national stench/peculiar smell in 2017, which is complained, accounts for about what all environmental problems were complained
18%.Peculiar smell, which disturbs residents, not only affects the normal life of the people, reduces the living environment quality of the people, and easily become society
The focus of meeting public opinion is current one of important ecological environment problem in the urgent need to address.
In recent years, due to the fast development of urbanization and the dilatation of city scope, pervious industrial and mining enterprises' land used gradually becomes
At Urban Construction Land_use, but the contaminated sites that industrial and mining enterprises leave urgently are administered, and soil remediation industry is gradually risen, Pollution Field
Ground reparation becomes the focus of environmental protection industry (epi).Especially pesticide industry, since pesticide variety is more, pesticide production technology route is longer,
It is more to chemically react type.The production of chemical pesticide raw medicine needs several steps to react to more than ten steps, usually excessive response, product yield compared with
Low, average less than 50%, other raw materials, intermediate and by-product are discharged all in the form of " three wastes ".Pesticide industry contaminated sites are outstanding
For complexity, it is higher to repair difficulty.The supplementary material and solvent that another aspect pesticide producing is used, much there is volatility.Part is different
The olfact of taste substance is very low, and pesticide industry site remediation process easily generates peculiar smell.Former Tianjin insecticide factory, former Hangzhou pesticide
The plot soil remediation engineerings such as factory, former Wuhan insecticide factory, former rivers and mountains agrochemical because peculiar smell disturbs residents halted, are once becoming society and are closing
The focus of note.Therefore, the secondary pollution of pesticide industry contaminated site repair process is the main Environmental Problems of public attention.How
Monitoring and evaluation peculiar smell becomes one of China's soil remediation industry peculiar smell management and top priority of control.
With constantly improve for China's environmental law regulation, serial relevant criterion and technical specification have successively been put into effect." soil
Environmental monitoring technology specification " (HJ 166-2004) define the cloth point sampling of soil environment monitoring, analysis method, quality evaluation
Equal technology contents.Monitoring suitable for types such as national areas Soil Background, agricultural land soil, soil pollution accidents.For pollution
Soil sampling, it is desirable that tentatively define soil pollution range according to the color of pollutant, the print factors such as stain and smell, sampled point is many
In 5.On particular content, sample is not acquired and carries out specified in more detail.
" emission standard for odor pollutants " (GB 14554-1993) and its exposure draft are, it is specified that stationary source evil
Smelly pollutant emission limit generates enterprise and institution and other production and operation of foul gas suitable for production and operating activities
The odorant pollutant of person discharges management.For being exported from ground level to the exhaust tube where exhaust tube (or its main building construction)
The exhaust tube height of meter, odorant pollutant emission limit are provided.By taking hydrogen sulfide as an example, at 20 meters of exhaust tube height, sulphur
Changing hydrogen highest allows rate of discharge to be not greater than 0.10kg/h.And propose circumference odorant pollutant concentration limit.With hydrogen sulfide
For, circumference odorant pollutant concentration is not greater than 0.02mg/m3.But the standard and not yet explicitly circumference odorant pollutant concentration
The setting requirements of monitoring site.
" standard for atmosphere environment quality " (GB3095-2012) is suitable for Evaluation of Atmospheric Environmental Quality and management, is not directed to
Odor concentration and gas sampling site setting.
" odor pollution environmental monitoring technology specification " (HJ 905-2017) points out sample and sample bits in relation to stench
It sets, is carried out according to the related request of the gaseous pollutant method of sampling in GB/T16157.
" particulate matter measurement and the gaseous pollutant method of sampling in Concentration in Fixed Pollutants Source " (GB/T 16157-1996) is applicable in
The sampling of the measurement of particulate matter and gaseous pollutant in Concentration in Fixed Pollutants Source.Thieff hatch distance samples platform about 1.2-
1.3m.For gaseous pollutant, sampling location is not limited by regulation, but should avoid vortex.
" the measurement tank of surrounding air volatile organic matter samples gas chromatography-mass spectrography " (HJ 759-2015) is suitable for
The measurement of 67 kinds of volatile organic matters such as propylene in surrounding air.It is required that instantaneous sampling can be used for sample acquisition and constant flow rate is adopted
Sample two ways is not required and is refined to the sample of surrounding air.
" surrounding air semi-volatile organic matter sampling technique directive/guide " (HJ 691-2014) is suitable for specification environment air
The formulation of the semi-volatile organic matter method of sampling and the acquisition of sample.The setting of monitoring for surrounding air, sample is answered
Meet the requirement of HJ664.Monitoring for uncontrollable discharge, the setting of sample should meet the requirement of HJ/T 55.Sampling is commented
Height of the valence device air inlet away from ground should select 1.5-15m according to the different purposes of measured object.When low discharge acquires, sampling pipe
1-2 meters of high positions from the ground should be placed on.
" environmental air quality monitoring point arrangement technical specification (tentative) " (HJ 664-2013) requirement, for adopting by hand
Sample, height of the thieff hatch apart from ground is at 1.5-15 meters；For monitoring automatically, thieff hatch is apart from ground level in 3-20
Rice.If building average height is at 25 meters or more in radius 300-500 meters of range around selected monitoring site, thieff hatch height
It can be chosen in 20-30 meters of ranges.
" atmosphere pollution uncontrollable discharge monitoring technology directive/guide " (HJ/T 55-2000) is suitable for atmosphere pollution without group
Knit the monitoring that discharge carries out, it is desirable that monitoring point is at the 1.5m of ground or 1.5-15m.
" measurement adsorption tube sampling-thermal desorption gas chromatography-mass spectrography of surrounding air volatile organic matter " (HJ644-
2013) suitable for surrounding air 35 kinds of volatile organic matters measurement.For the acquisition reference HJ/T of ambient air sampling
194 related request executes.
" ambient air quality craft Specifications of Monitoring Technology " (HJ 194-2017) defines ambient air quality and monitors by hand
The technical requirements such as point arrangement, sample acquisition, suitable for the activity being monitored to ambient air quality using manual method.
It defines with solution absorption and sorption pipe, filter membrane etc. on monitoring site, by directly sampling or passive sampling apparatus, acquisition are certain
The ambient air sampling of period is analyzed and processed and monitors in laboratory.It is required that thieff hatch is apart from ground level 1.5-15m model
In enclosing, away from supporter 1m or more.
" the measurement triangle odor bag method of air quality stench " (GBT14675-1993) requires to open sampling when sampling
Bottle stopper covers bottle stopper after being filled with sample gas in sampling bottle to normal pressure, is protected from light and transports experimental determination back, not to specifically adopting
Sampling point position is described.
" soil quality soil gas samples guide " (GBT 36198-2018) gives the sampling in relation to soil gas and refers to
South is not suitable for measuring into the soil gas of atmosphere.
For smell substance, China's various criterion and specification are not quite similar to sample height, are elastic larger.Different
Height of sampling smell substance diffusive attenuation differs greatly, and smell substance concentration is caused to change greatly, and is easy by wind direction, wind-force
The disturbance of equal weather conditions, directly affects the evaluation result of ambient air quality.
Summary of the invention
Goal of the invention: the sampling that the first object of the present invention is to provide a kind of pesticide industry place volatility smell substance is commented
Valence device.
The second object of the present invention is to provide a kind of sampling using the pesticide industry place volatility smell substance
The method of evaluating apparatus progress volatility smell substance evaluation.
The third object of the present invention is to provide a kind of sampling using the pesticide industry place volatility smell substance
The method that evaluating apparatus carries out the covering sealing effect evaluation of volatility smell substance.
Technical solution: the present invention provides a kind of sampling evaluating apparatus of pesticide industry place volatility smell substance, packets
Cabinet, thieff hatch, sealing-plug, fan and power supply unit are included, the bottom of box opens wide, upper surface sealing；The sampling hole location
In cabinet upper surface, box house is made to be in communication with the outside；The sealing-plug is located in thieff hatch for sealing thieff hatch, the wind
Fan is located in the box body portion, and the power supply unit and fan are electrically connected.
Preferably, the sampling evaluating apparatus of above-mentioned pesticide industry place volatility smell substance further includes insulating layer, described
Insulating layer is wrapped in cabinet outer layer.
Preferably, the sampling evaluating apparatus of above-mentioned pesticide industry place volatility smell substance further includes temperature humidity sensing
Device and display, the humidity temperature pickup are located in the box body portion, and the display is located at cabinet upper surface；The temperature is wet
Sensor and display is spent to be electrically connected with the power supply unit.
Further, the sampling evaluating apparatus of above-mentioned pesticide industry place volatility smell substance further includes anti-rain dress
It sets, the rain-proof shower device is the type of falling bucket, is arranged in top of the box.
Preferably, said fans are low rotary speed fan.
Preferably, said fans are microkinetic low rotary speed fan, and purpose is to be uniformly mixed sample air in cabinet, are guaranteed
The uniformity of gas in cabinet.
Preferably, the sampling evaluating apparatus of above-mentioned pesticide industry place volatility smell substance further includes sandbag, is used for
When using the device, the bottom of sealing sampling evaluating apparatus.
Further, the cabinet is made of stainless steel material；The insulating layer is 30mm plastic foam plate；The sealing
Plug is teflon seal plug；The power supply unit being electrical connected with fan, humidity temperature pickup and display is lithium
Battery.
Further, the power supply unit is placed on cabinet upper surface.
Further, the sampling evaluating apparatus of the pesticide industry place volatility smell substance is hollow multi-panel or ball
Shape seal, the one side with ground face contact are open design, and the sampling of the pesticide industry place volatility smell substance is evaluated
Device is not limited to any size and shape, preferably cuboid or cylindrical structure；Further, it is preferable to be cylindrical structure.
A kind of sampling evaluating apparatus progress volatility peculiar smell using the pesticide industry place volatility smell substance
The method of substance evaluation is included the following steps: to open fan, opens sealing-plug after standing, collected at thieff hatch using airbag
Gas in cabinet detects smell substance gas concentration.
Preferably, the time of above-mentioned standing is 1~6 hour.
Further, further include following steps after above-mentioned detection gas concentration: being again turned on fan, open sealing after standing
Plug, using airbag at the thieff hatch gas, detection gas concentration in collection tank；The average row of gas is calculated according to following formula
Put flux F；
Wherein, F is the emission flux of under test gas, and ρ is the density of gas under standard state, and H is box height, and T is case
Body temperature, dc/dt are that the ratio of sampled gas concentration difference and time difference, P are air pressure when sampling, P twice in cabinet0For standard
Atmospheric pressure.
Wherein, the unit of the emission flux of above-mentioned under test gas is gm-2·h-1；The density of gas under standard state
Unit is gL-1；The unit of box height is m；The unit of cabinet temperature is DEG C；In cabinet twice sampled gas concentration difference with
The ratio unit of time difference is μ gL-1·h-1；The unit of air pressure P is mmHg when sampling；Standard atmospheric pressure P0Unit be
MmHg, P/P0≈1。
Preferably, the time of repose after being again turned on fan is 1 hour.
A kind of sampling evaluating apparatus progress volatility peculiar smell using above-mentioned pesticide industry place volatility smell substance
The method that substance covers sealing effect evaluation, includes the following steps:
(1) it selects site at adjacent two, to be handled at one using the covering closing of volatility smell substance, as sky at one
Any treatment measures are not taken in white control；
(2) the sampling evaluating apparatus of two pesticide industry place volatility smell substances is placed into step (1) respectively
Described in 2 at site；
(3) two sampling evaluating apparatus in step (2) are opened simultaneously into fan, opens sealing-plug after standing, uses gas
Gas, detection gas concentration simultaneously calculate covering enclosed r according to following formula to bag in collection tank at the thieff hatch:
R=(CB-CA)÷CB× 100%
Wherein, CBDo not take the gas measured on the site of any treatment measures dense for blank control described in step (1)
Degree；CATo use the covering of volatility smell substance to close the gas concentration measured on the site handled described in step (2).
Wherein, above-mentioned detection gas concentration is referred to " the measurement adsorption tube sampling-of surrounding air volatile organic matter
Thermal desorption gas chromatography-mass spectrography " it is detected.
Wherein, the tool used when above-mentioned airbag is Regular under test gas.
Preferably, the sampling evaluating apparatus of above-mentioned pesticide industry place volatility smell substance carries out volatility smell substance
The method for covering sealing effect evaluation, the time of step (3) described standing are 1~6 hour.
Further, the sampling evaluating apparatus of above-mentioned pesticide industry place volatility smell substance, uses the pesticide
The sampling evaluating apparatus of industry place volatility smell substance carries out described in the method and use of volatility smell substance evaluation
Pesticide industry place volatility smell substance sampling evaluating apparatus volatility smell substance covering sealing effect evaluation side
Method is equally applicable to the industries contaminated site such as chemical industry, medicine.
The utility model has the advantages that (1) body structure eliminates the interference of the weather conditions such as wind-force, wind direction；Pass through microkinetic in cabinet
The physics of fan mixes, and ensure that the representativeness of gas.(2) thieff hatch is secured at a distance from ground, ensure that volatility is different
The uniformity of taste substance emission gases condition.(3) according to the height of cabinet and sampling time, the discharge of available smell substance
Flux extrapolates the discharge amount of every square metre of soil smell substance in the unit time, realizes quantification.(4) it is fixed to can be used for
Take the engineering effort of the peculiar smell covering closing measure such as film laying, sprinkling foam in hibitors in amount evaluation pesticide industry place.(5)
By the synchronous data for obtaining temperature and humidity in cabinet, convenient for analyzing the influence factor of peculiar smell.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the sampling evaluating apparatus of cylindrical body pesticide industry place volatility smell substance；
Fig. 2 is the bottom sectional view of the sampling evaluating apparatus of cylindrical body pesticide industry place volatility smell substance；
Fig. 3 is the structural schematic diagram of the sampling evaluating apparatus of cuboid pesticide industry place volatility smell substance；
Fig. 4 is the bottom sectional view of the sampling evaluating apparatus of cuboid pesticide industry place volatility smell substance.
Specific embodiment
Technical solution of the present invention is described in detail below.
Embodiment 1
The acquisition of volatility smell substance, a height of 50cm × 50cm of 1 length and width of cabinet × 150cm are carried out in certain pesticide industry place
Squared design.24.2 DEG C of temperature in cabinet 1, relative humidity 86.7%, rain-proof shower device 9 is for being placed on cabinet thieff hatch 2
When top is to prevent sampling, power supply unit 5 is drenched in rainfall.
It opens fan 4 to switch, the sealing-plug 3 of 1 hour back spin exploitation sample evaluating apparatus thieff hatch 2 acquires cabinet 1 with airbag
Interior gas, referring to " measurement adsorption tube sampling-thermal desorption gas chromatography-mass spectrography of surrounding air volatile organic matter " (HJ
It 644-2013) is detected, the concentration for obtaining benzene is 468.7 μ g/m3。
As control, 1.5 meters of high level of synchronization samplings outside sampling evaluating apparatus, with embodiment 1, detection obtains the method for sampling
The concentration of benzene is 239.5 μ g/m3.The influence of wind-force and wind speed when main error samples outside sampling evaluating apparatus.
Three parts of gaseous samples are acquired simultaneously in sampling evaluating apparatus and outside sampling evaluating apparatus, be successively labeled as 1 respectively,
2,3 groups, influence factor verifying is carried out in triplicate, and analysis method is same as above；The gas of the volatile benzene detected three times inside and outside cabinet 1
Bulk concentration detection data is as shown in table 1.
The gas concentration of the volatile benzene detected three times inside and outside 1 cabinet of table
| Sample number into spectrum | (μ g/m in cabinet3) | Outer (the μ g/m of cabinet3) |
| 1 | 481.3 | 241.7 |
| 2 | 483.6 | 185.8 |
| 3 | 485.2 | 136.4 |
| Average value three times | 483.37 | 187.97 |
Above-mentioned data can be seen that the sampling evaluating apparatus of pesticide industry place volatility smell substance of the present invention
It is influenced by the external world smaller, it is relatively stable to measure gas concentration.It can accurately reflect the concentration of volatility smell substance.
Embodiment 2
The acquisition of volatility smell substance, a height of 50cm × 50cm of 1 length and width of cabinet × 100cm are carried out in certain pesticide industry place
Squared design.25.1 DEG C of temperature in cabinet 1, relative humidity 90.5%.
It opens fan 4 to switch, the sealing-plug 3 of 6 hours back spin exploitation sample evaluating apparatus thieff hatch 2 acquires cabinet 1 with airbag
Interior gas, referring to " measurement adsorption tube sampling-thermal desorption gas chromatography-mass spectrography of surrounding air volatile organic matter " (HJ
It 644-2013) is detected, the gas concentration for obtaining volatile benzene three times is respectively 687.3,685.4,686.1 μ g/m3。
Embodiment 3
The acquisition of volatility smell substance is carried out in certain pesticide industry place, cabinet 1 is the cylinder of diameter 50cm, high 150cm
Shape design.28.6 DEG C of temperature in cabinet 1, relative humidity 80%.
Fan swicth is opened, gas in sampling evaluating apparatus is acquired with airbag behind 2 hours and 3 hours, referring to " ring
Measurement adsorption tube sampling-thermal desorption gas chromatography-mass spectrography of border air volatile organic matter " (HJ 644-2013) examined
It surveys, the concentration for obtaining ethylbenzene is respectively 137.8 μ g/m3With 185.0 μ g/m3。
It is changed with time rate according to gas concentration, ethylbenzene can be calculated by the average row in 2 hours to 3 hours
Putting flux (F) is 64.09 μ gm-2·h-1。
In formula: ρ is the density of gas under standard state, i.e. 4.74gL-1；H is 1 height of cabinet, i.e. 1.5m；T is cabinet 1
Interior temperature, i.e., 28.6 DEG C；Dc/dt is the ratio of sampled gas concentration difference and time difference twice in cabinet 1, i.e. 47.2 μ gm-3·h-1；Air pressure when P is sampling, unit mmHg；P0It is mmHg for standard atmospheric pressure unit；P/P0≈1。
Embodiment 4
The acquisition of volatility smell substance is carried out in certain pesticide industry place, cabinet 1 is the cylinder of diameter 50cm, high 150cm
Shape design.26.3 DEG C of temperature in cabinet 1, relative humidity 91%.
Two adjacent points of evaluating apparatus acquisition Same Site, a sampling evaluating apparatus, number are sampled with 2 respectively
A is placed on the upper soll layer for being equipped with HDPE film；Another sampling evaluating apparatus, number B, which is placed on, does not take any measure
Upper soll layer is as blank control.Fan swicth is opened, after 6 hours, while acquiring the gas in above-mentioned two sampling evaluating apparatus
Body is detected, and specific analytical method is the same as embodiment 1.The concentration for obtaining vinyl chloride is respectively 0 and 44.7 μ g/m3.Known to calculating
Being laid with HDPE film is 100% to the covering enclosed r of vinyl chloride.Illustrate volatility smell substance of the HDPE film as vinyl chloride
Covering material, effect is fine, has been verified in existing professional standard and engineering practice.
Wherein, enclosed (r) is covered are as follows: r=(CB-CA)÷CB× 100%
In formula: CB=44.7 μ g/m3, CA==0.
Embodiment 5
The acquisition of volatility smell substance, a height of 50cm × 50cm of 1 length and width of cabinet × 150cm are carried out in certain pesticide industry place
Squared design, 30.7 DEG C of temperature in cabinet 1, relative humidity 85.1%.
Two adjacent points of evaluating apparatus acquisition Same Site, a sampling evaluating apparatus, number are sampled with 2 respectively
A is placed on the upper soll layer through sprinkling foam in hibitors processing；Another sampling evaluating apparatus, number B, which is placed on not take, to be appointed
The upper soll layer of what measure is as blank control.Fan swicth is opened, after 4 hours, while acquiring above-mentioned two sampling evaluation dress
Gas in setting is detected, and specific analytical method is the same as embodiment 1.The concentration for obtaining ethylbenzene is respectively 39.5 μ g/m3With 158.2
μg/m3.The processing of sprinkling foam in hibitors is 75.03% to the covering enclosed of ethylbenzene known to calculating.Illustrate to spray foam suppression
Volatility smell substance covering material of the preparation as ethylbenzene, effect is preferable, has been verified in existing engineering practice.
Embodiment 6
The acquisition of volatility smell substance is carried out in certain pesticide industry place, cabinet 1 is the cylinder of diameter 50cm, high 150cm
Shape design.28.1 DEG C of temperature in cabinet 1, relative humidity 86.3%.
Two adjacent points of evaluating apparatus acquisition Same Site, a sampling evaluating apparatus, number are sampled with 2 respectively
A is placed on the upper soll layer through sprinkling foam in hibitors processing；Another sampling evaluating apparatus, number B, which is placed on not take, to be appointed
The upper soll layer of what measure is as blank control.Fan swicth is opened, after 1 hour, while acquiring above-mentioned two sampling evaluation dress
Gas in setting is detected, and specific analytical method is the same as embodiment 1.The concentration for obtaining ethylbenzene is respectively 24.7 μ g/m3With 106.5
μg/m3.The processing of sprinkling foam in hibitors is 74.4% to the covering enclosed of ethylbenzene known to calculating.Illustrate that spraying foam inhibits
Volatility smell substance covering material of the agent as ethylbenzene, effect is preferable, has been verified in existing engineering practice.
Claims (10)
1. a kind of sampling evaluating apparatus of pesticide industry place volatility smell substance, it is characterised in that: including cabinet (1), adopt
Sample hole (2), sealing-plug (3), fan (4) and power supply unit (5), cabinet (1) bottom-open, upper surface sealing；It is described to adopt
Sample hole (2) is located at cabinet (1) upper surface, makes to be in communication with the outside inside cabinet (1)；The sealing-plug (3) is located in thieff hatch (2)
For sealing thieff hatch (2), the fan (4) is located at cabinet (1) inside, and the power supply unit (5) electrically connects with fan (4)
It connects.
2. the sampling evaluating apparatus of pesticide industry place volatility smell substance according to claim 1, it is characterised in that:
It further include insulating layer (6), the insulating layer (6) is wrapped in cabinet (1) outer layer.
3. the sampling evaluating apparatus of pesticide industry place volatility smell substance according to claim 1, it is characterised in that:
It further include humidity temperature pickup (7) and display (8), the humidity temperature pickup (7) is located at cabinet (1) inside, described
Display (8) is located at cabinet (1) upper surface；The humidity temperature pickup (7) and display (8) with the power supply unit
(5) it is electrically connected.
4. the sampling evaluating apparatus of pesticide industry place volatility smell substance according to claim 1, it is characterised in that:
It further include rain-proof shower device (9), the rain-proof shower device (9) is the type of falling bucket, and setting is at the top of cabinet (1).
5. the sampling evaluating apparatus of pesticide industry place volatility smell substance according to claim 1, it is characterised in that:
The fan (4) is low rotary speed fan.
6. a kind of sampling evaluating apparatus using pesticide industry place volatility smell substance described in Claims 1 to 55 carries out
The method of volatility smell substance evaluation, which comprises the steps of: open fan (4), open sealing-plug after standing
(3), using airbag at thieff hatch (2) collection tank (1) interior gas, detect gas with foreign flavor concentration.
7. it is different that the sampling evaluating apparatus of pesticide industry place volatility smell substance according to claim 1 carries out volatility
The method of taste substance evaluation, it is characterised in that: the time of the standing is 1~6 hour.
8. it is different that the sampling evaluating apparatus of pesticide industry place volatility smell substance according to claim 1 carries out volatility
The method of taste substance evaluation, which is characterized in that further include following steps after the detection gas with foreign flavor concentration: being again turned on fan
(4), sealing-plug (3) are opened after standing, collection tank (1) interior gas, detection gas with foreign flavor are dense at thieff hatch (2) using airbag
Degree；The average emission flux F that gas with foreign flavor is calculated according to following formula, is evaluated by average emission flux F as standard；
Wherein, F is the emission flux of under test gas, and ρ is the density of gas under standard state, and H is the height of cabinet (1), and T is case
Body (1) interior temperature, dc/dt are the ratio for sampling two sub-sampling gas with foreign flavor concentration differences and time difference in evaluating apparatus, and P is to adopt
Air pressure when sample, P0For standard atmospheric pressure.
9. a kind of sampling evaluating apparatus using any pesticide industry place volatility smell substance of Claims 1 to 55
The method for carrying out the covering sealing effect evaluation of volatility smell substance, which comprises the steps of:
(1) it selects site at adjacent two, to be handled at one using the covering closing of volatility smell substance, blank pair is used as at one
According to not taking any treatment measures；
(2) the sampling evaluating apparatus of two pesticide industry place volatility smell substances is placed into institute in step (1) respectively
Site at two stated；
(3) two sampling evaluating apparatus in step (2) are opened simultaneously fan (4), opens sealing-plug (3) after standing, used
Airbag collection tank (1) interior gas at thieff hatch (2) detects gas with foreign flavor concentration and calculates covering closing according to following formula
Rate r is evaluated:
R=(CB-CA)÷CB× 100%；
Wherein, CBThe gas concentration measured on the site of any treatment measures is not taken for blank control described in step (1)；CA
To use the covering of volatility smell substance to close the gas concentration measured on the site handled described in step (2).
10. the sampling evaluating apparatus of pesticide industry place volatility smell substance according to claim 9 carries out volatility
The method that smell substance covers sealing effect evaluation, it is characterised in that: the time of step (3) described standing is 1~6 hour.
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