CN107084862B - A kind of soil VOCs environmental protection tests device - Google Patents
A kind of soil VOCs environmental protection tests device Download PDFInfo
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- CN107084862B CN107084862B CN201710460055.4A CN201710460055A CN107084862B CN 107084862 B CN107084862 B CN 107084862B CN 201710460055 A CN201710460055 A CN 201710460055A CN 107084862 B CN107084862 B CN 107084862B
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- environmental protection
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- 239000012855 volatile organic compound Substances 0.000 title claims abstract description 130
- 239000002689 soil Substances 0.000 title claims abstract description 58
- 238000012360 testing method Methods 0.000 title claims abstract description 25
- 230000007613 environmental effect Effects 0.000 title claims abstract description 22
- 238000010438 heat treatment Methods 0.000 claims abstract description 48
- 239000004615 ingredient Substances 0.000 claims description 25
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 claims description 12
- 230000003993 interaction Effects 0.000 claims description 10
- 239000007787 solid Substances 0.000 claims description 10
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 claims description 9
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 claims description 9
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims description 9
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 claims description 9
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims description 8
- 230000002093 peripheral effect Effects 0.000 claims description 8
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 claims description 6
- YNQLUTRBYVCPMQ-UHFFFAOYSA-N Ethylbenzene Chemical compound CCC1=CC=CC=C1 YNQLUTRBYVCPMQ-UHFFFAOYSA-N 0.000 claims description 6
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 claims description 6
- LRHPLDYGYMQRHN-UHFFFAOYSA-N N-Butanol Chemical compound CCCCO LRHPLDYGYMQRHN-UHFFFAOYSA-N 0.000 claims description 6
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 claims description 6
- JHIVVAPYMSGYDF-UHFFFAOYSA-N cyclohexanone Chemical compound O=C1CCCCC1 JHIVVAPYMSGYDF-UHFFFAOYSA-N 0.000 claims description 6
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 5
- DKPFZGUDAPQIHT-UHFFFAOYSA-N butyl acetate Chemical compound CCCCOC(C)=O DKPFZGUDAPQIHT-UHFFFAOYSA-N 0.000 claims description 4
- JOLQKTGDSGKSKJ-UHFFFAOYSA-N 1-ethoxypropan-2-ol Chemical compound CCOCC(C)O JOLQKTGDSGKSKJ-UHFFFAOYSA-N 0.000 claims description 3
- ARXJGSRGQADJSQ-UHFFFAOYSA-N 1-methoxypropan-2-ol Chemical compound COCC(C)O ARXJGSRGQADJSQ-UHFFFAOYSA-N 0.000 claims description 3
- 238000009413 insulation Methods 0.000 claims description 3
- BDERNNFJNOPAEC-UHFFFAOYSA-N propan-1-ol Chemical compound CCCO BDERNNFJNOPAEC-UHFFFAOYSA-N 0.000 claims description 3
- NTIZESTWPVYFNL-UHFFFAOYSA-N Methyl isobutyl ketone Chemical compound CC(C)CC(C)=O NTIZESTWPVYFNL-UHFFFAOYSA-N 0.000 claims description 2
- UIHCLUNTQKBZGK-UHFFFAOYSA-N Methyl isobutyl ketone Natural products CCC(C)C(C)=O UIHCLUNTQKBZGK-UHFFFAOYSA-N 0.000 claims description 2
- 238000010276 construction Methods 0.000 claims description 2
- 150000002148 esters Chemical class 0.000 claims description 2
- JMMWKPVZQRWMSS-UHFFFAOYSA-N isopropanol acetate Natural products CC(C)OC(C)=O JMMWKPVZQRWMSS-UHFFFAOYSA-N 0.000 claims description 2
- 229940011051 isopropyl acetate Drugs 0.000 claims description 2
- 238000005259 measurement Methods 0.000 claims 2
- GWYFCOCPABKNJV-UHFFFAOYSA-N isovaleric acid Chemical compound CC(C)CC(O)=O GWYFCOCPABKNJV-UHFFFAOYSA-N 0.000 claims 1
- 238000007789 sealing Methods 0.000 claims 1
- 238000009835 boiling Methods 0.000 description 22
- 238000001514 detection method Methods 0.000 description 9
- 239000007789 gas Substances 0.000 description 5
- 239000005416 organic matter Substances 0.000 description 5
- 238000004458 analytical method Methods 0.000 description 4
- 239000012159 carrier gas Substances 0.000 description 4
- 238000011835 investigation Methods 0.000 description 4
- YKYONYBAUNKHLG-UHFFFAOYSA-N propyl acetate Chemical compound CCCOC(C)=O YKYONYBAUNKHLG-UHFFFAOYSA-N 0.000 description 4
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 150000001555 benzenes Chemical class 0.000 description 2
- 239000000356 contaminant Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 2
- 239000003344 environmental pollutant Substances 0.000 description 2
- 235000019441 ethanol Nutrition 0.000 description 2
- 230000036541 health Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 241000208340 Araliaceae Species 0.000 description 1
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- XFXPMWWXUTWYJX-UHFFFAOYSA-N Cyanide Chemical compound N#[C-] XFXPMWWXUTWYJX-UHFFFAOYSA-N 0.000 description 1
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 1
- 235000003140 Panax quinquefolius Nutrition 0.000 description 1
- QOSMNYMQXIVWKY-UHFFFAOYSA-N Propyl levulinate Chemical compound CCCOC(=O)CCC(C)=O QOSMNYMQXIVWKY-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 229910052785 arsenic Inorganic materials 0.000 description 1
- RQNWIZPPADIBDY-UHFFFAOYSA-N arsenic atom Chemical compound [As] RQNWIZPPADIBDY-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910052793 cadmium Inorganic materials 0.000 description 1
- BDOSMKKIYDKNTQ-UHFFFAOYSA-N cadmium atom Chemical compound [Cd] BDOSMKKIYDKNTQ-UHFFFAOYSA-N 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 125000001309 chloro group Chemical group Cl* 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000001186 cumulative effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 235000008434 ginseng Nutrition 0.000 description 1
- 239000003673 groundwater Substances 0.000 description 1
- 150000008282 halocarbons Chemical class 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 239000013067 intermediate product Substances 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- GWYFCOCPABKNJV-UHFFFAOYSA-M isovalerate Chemical compound CC(C)CC([O-])=O GWYFCOCPABKNJV-UHFFFAOYSA-M 0.000 description 1
- 150000002576 ketones Chemical class 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 1
- 229910052753 mercury Inorganic materials 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 239000000575 pesticide Substances 0.000 description 1
- 239000003209 petroleum derivative Substances 0.000 description 1
- 150000003071 polychlorinated biphenyls Chemical class 0.000 description 1
- 125000005575 polycyclic aromatic hydrocarbon group Chemical group 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 241000894007 species Species 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- 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
- 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
- G01N1/44—Sample treatment involving radiation, e.g. heat
-
- 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
- G01N30/04—Preparation or injection of sample to be analysed
- G01N30/06—Preparation
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Soil Sciences (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Molecular Biology (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
A kind of soil VOCs environmental protection tests device, comprising: VOCs acquires equipment and VOCs measuring device；The VOCs acquisition component includes drill bit, casing, pushing ram and motor；Drill bit is used to pierce the soil of set depth, and the heating element heated for soil is arranged inside；Pushing ram is connected and is driven by motor with drill bit, for driving drill bit to pierce in soil；Casing is set to outside the pushing ram, the airflow channel of the interior VOCs for forming volatilization；VOCs measuring device is gas chromatograph, receives the VOCs of the volatilization of VOCs acquisition equipment acquisition, measures the content of wherein various Volatile Organic Components.
Description
Technical field
The present invention relates to a kind of environmental protection tests technologies, more particularly, to a kind of the continuous of Volatile Organic Compounds in Soil VOCs
Detection device.
Background technique
Pollutant in soil not only includes the heavy metals such as mercury, chromium, lead, cadmium, arsenic, nickel, it is also possible to contain benzene homologues, chloro
The inorganic matters such as the organic matters such as hydro carbons, petroleum hydrocarbon, polycyclic aromatic hydrocarbon, pesticide, Polychlorinated biphenyls and cyanide and corrosive ion.It is raw
Raw material, intermediate product, catalyst or final product during production etc. may all be such that soil is contaminated.It is living by long-term industry
Dynamic to influence, land pollution shows as organic and inorganic compounding contamination characteristics mostly.
Common includes Volatile Organohalides class, benzene series species, chlorine to the volatile organic contaminant of human health
For benzene class etc..Therefore, being detected to the volatile organic matter in soil has important role to the prevention and treatment of pollution.With agriculture
Medicine, a large amount of of organic solvent use and the discharge of a large amount of waste water, waste, and volatile organic contaminant (VOCs) is to soil, heavy
The serious pollution of product object, earth's surface and underground water source and the ecosystem becomes a generally existing environmental problem.
Volatile organic matter refers at normal temperature, the various organic compounds that 50 DEG C~260 DEG C of boiling point.VOCs enters soil
And in ground water regime after, will affect the growth of crops and destroy vegetation, seriously endanger the health of people.It is main
Reason be into the VOCs in soil quantity and speed be more than soil carrying capacity and purification speed, make the property of soil
Matter, composition and character etc. change, and keep the cumulative process of pollutant gradually dominant.Therefore, have to the volatility in soil
Machine object (VOCs), which is detected, has important role to the prevention and treatment of pollution.
Currently, the analysis for VOCs includes Laboratory Instruments analysis and field instrumentation detection two ways.VOCs tool
The characteristics of having highly volatile and being lost, therefore, although Laboratory Instruments analysis can be accurate to VOCs qualitative and quantitative, sample
Product will considerably increase the possibility of sample volatilization by multiple intermediate links such as transport, preservations, and analysis result lacks timeliness,
High expensive needs to research and develop the real-time quick analytical equipment of live VOCs.
In the prior art, 201410330499.2 patent of invention puts forward a kind of Volatile Organic Compounds in Soil and continuously examines
Device is surveyed, by the way that VOCs acquisition device is pierced the designated position in soil, passes through the heating element heats soil in acquisition device
Earth makes VOSs volatilize, and is carried to gas chromatograph VOCs analytical equipment by the VOCs that the carrier gas in acquisition device will volatilize, from
And detect VOCs content in soil.However, VOCs gas needs to be channeled to by carrier gas or air extractor in the system
In VOCs analytical equipment, and due to the boiling point of different VOCs ingredients difference, and heating element reaches target from beginning to warm up
Temperature needs certain time, therefore low-boiling VOCs ingredient volatilizees first, cause measure incipient stage low-boiling VOCs at
Sorting measured value is higher, and the low-boiling VOCs composition detection value of follow-up phase is relatively low.
Summary of the invention
The present invention as 201410330499.2 patent of invention improvement, provide a kind of soil VOCs environmental protection tests dress
It sets, can export the VOCs of volatilization not carrier gas or air extractor, while can be improved the detection accuracy of VOCs.
As one aspect of the present invention, a kind of soil VOCs environmental protection tests device is provided, comprising: VOCs acquires equipment
And VOCs measuring device；The VOCs acquisition component includes drill bit, casing, pushing ram and motor；The drill bit is for boring
The heating element heated for soil is arranged inside in the soil for entering set depth；The pushing ram be connected with drill bit and
It is driven by motor, for driving drill bit to pierce in soil；Described sleeve pipe is set to outside the pushing ram, interior formation volatilization
The airflow channel of VOCs；The VOCs measuring device is gas chromatograph, receives the volatilization of VOCs acquisition equipment acquisition
VOCs measures the content of wherein various Volatile Organic Components；It is characterized by: the drill bit includes first part, second
Part and Part III；The first part is taper, is located at drill end, is set as solid construction；Described second
It is divided into truncated cone-shaped, is located in the middle part of drill bit, is set as hollow, it is internal that heating element is set；Part III is frustum cone structure, position
In drill bit afterbody, air hole is arranged in anchor ring.
Preferably, the Part III includes the solid section and peripheral part at center, and the solid portion cross-section is
Top is less than following rectangle, and top is fixed with the pushing ram, and the peripheral part is hollow structure, constitutes with casing
The acquisition channel of the VOCs of volatilization.
Preferably, the air hole is sealed by waterproof ventilated membrane.
Preferably, the heating element is resistance wire.
Preferably, heat insulation layer is arranged in above the heating element and lower section.
Preferably, the VOCs includes that methanol, ethyl alcohol, isopropanol, acetone, normal propyl alcohol, butanone, ethyl acetate, acetic acid are different
The positive fourth of propyl ester, n-butanol, benzene, propylene glycol monomethyl ether, n-propyl acetate, 4-methyl-2 pentanone, propylene-glycol ethyl ether, toluene, acetic acid
One or more of ester, ethylbenzene, dimethylbenzene, cyclohexanone.
Preferably, further include human-computer interaction device, be used to input the VOCs ingredient for needing to detect.
Preferably, the human-computer interaction device can also export the testing result of VOCs measuring device.
Preferably, VOCs, which is acquired, is arranged air container between equipment and VOCs measuring device, passes through first respectively and opens
It closes and second switch acquires equipment with VOCs and VOCs measuring device is connect.
Optionally, temperature sensor is arranged in the second part；It further include controller, controller is when detecting according to temperature
The detected value of sensor controls the unlatching and closing of the first switch and second switch.
Preferably, the controller include the following steps: when detecting (1) determine need volatile organic matter for detecting at
Point；(2) the highest Volatile Organic Components of boiling point in the Volatile Organic Components for needing to detect are determined；(3) according to boiling
The highest Volatile Organic Components of point determine the heating temperature of heating element；(4) drill bit is drilled into specified investigation depth；
(5) controller opens first switch, closes second switch, the temperature of heating element is heated to heating temperature；(6) controller is supervised
The temperature of controlling temperature sensor closes first switch after heating element reaches heating temperature and is continued above specific time；
(7) controller opens second switch, and the content of Volatile Organic Components is measured by VOCs.
Preferably, the specific time is 2~5 minutes.
Optionally, pressure transducer is set in the air container, and the controller is when detecting according to temperature sensor
And the detected value of pressure transducer controls the unlatching and closing of the first switch and second switch.
Preferably, the controller include the following steps: when detecting (1) determine need volatile organic matter for detecting at
Point；(2) the highest Volatile Organic Components of boiling point in the Volatile Organic Components for needing to detect are determined；(3) according to boiling
The highest Volatile Organic Components of point determine the heating temperature of heating element；(4) drill bit is drilled into specified investigation depth；
(5) controller opens first switch, closes second switch, the temperature of heating element is heated to heating temperature；(6) controller is supervised
The pressure for controlling pressure transducer, when the time diffusion value of the air container pressure is less than threshold value, the controller closes the
One switch；(7) controller opens second switch, and the content of Volatile Organic Components is measured by VOCs.
Detailed description of the invention
Fig. 1 is the schematic diagram of the VOCs acquisition equipment in one embodiment of the invention.
Fig. 2 is the VOCs acquisition equipment schematic diagram of a preferred embodiment of the invention.
Fig. 3 is the soil VOCs environmental protection tests schematic device of another embodiment of the present invention.
Fig. 4 is the soil VOCs environmental protection tests schematic device of the further preferred embodiment of the present invention.
Specific embodiment
In order to illustrate more clearly of technical solution of the present invention, embodiment will be used simply to be situated between the present invention below
Continue, it should be apparent that, be described below in be only one embodiment of the present of invention, for those of ordinary skill in the art come
It says, without any creative labor, other technical solutions can also be obtained according to these embodiments, also belonged to
Disclosure of the invention range.
The soil VOCs environmental protection tests device of the embodiment of the present invention, for VOCs detection in soil, comprising: VOCs acquisition is set
Standby 100 and VOCs measuring device 200.Referring to Fig. 1, it includes drill bit 10 that VOCs, which acquires equipment 100, casing 20, pushing ram 30, with
And motor (not shown).Drill bit 10 is used to pierce the soil of set depth, and the heating unit heated for soil is arranged inside
Part.Drill bit 10 includes first part 11, second part 12 and Part III 13, first part 11, second part 12 and the
Three parts 13 can be for example, by being welded together.First part 11 is taper, is located at 10 top of drill bit, is set as real
Core structure.Second part 12 is truncated cone-shaped, is located at 10 middle part of drill bit, is set as hollow, internal that heating element 121 is arranged,
For being heated for the soil around second part 12.Heating element 121 can be such as resistance wire, heating element 121
Heat insulation layer is arranged in top and lower section.Part III 13 is frustum cone structure, is located at 10 tail portion of drill bit, and air hole is arranged in anchor ring,
For importing the VOCs of soil heating volatilization, air hole is sealed by waterproof ventilated membrane.Part III includes the solid section at center
131 and peripheral part 132,131 section of solid section and pushing ram 30 are fixed, and peripheral part 132 is hollow structure, with set
Pipe 20 constitutes the acquisition channel 21 of the VOCs of volatilization.
Pushing ram 30 is connected and is driven by motor with drill bit 10, for driving drill bit 10 to pierce in soil.Casing 20 is set
It is placed in outside pushing ram 30, the airflow channel of the interior VOCs for forming volatilization.VOCs measuring device 200 is gas chromatograph,
The VOCs for receiving the volatilization that VOCs acquisition equipment 100 acquires, measures the content of wherein various Volatile Organic Components.
Through the invention in above-described embodiment soil VOCs environmental protection tests device setting, pass through in second part 12 plus
Thermal element heats surrounding soil, and the VOCs of soil heating volatilization is flowed up, to pass through Part III 13
Air hole be imported into acquisition channel 21, hence into VOCs measuring device 200 be detected；By the setting of above structure,
It can be incited somebody to action by the air hole of Part III 13 without carrier gas or air extractor since the VOCs of volatilization is flowed up
It is directed to VOCs analytical equipment.
Preferably, the VOCs environmental protection tests device of above-described embodiment further include human-computer interaction device, such as keyboard, mouse with
And display, be used to input and need the VOCs ingredient that detects, the detection ingredient can be methanol, ethyl alcohol, isopropanol, acetone,
Normal propyl alcohol, butanone, ethyl acetate, isopropyl acetate, n-butanol, benzene, propylene glycol monomethyl ether, n-propyl acetate, 4- methyl -2- penta
One or more of ketone, propylene-glycol ethyl ether, toluene, n-butyl acetate, ethylbenzene, dimethylbenzene, cyclohexanone.The human-computer interaction is set
It is standby to be exported the testing result of VOCs measuring device by display device.
Referring to fig. 2, wherein Part III 13 includes center to the structure of the VOCs acquisition equipment 100 of the preferred embodiment of the present invention
Solid section 131 and peripheral part 132,131 section of solid section be top be less than following rectangle, top and promote
Bar 30 is fixed, and the top with second part 12 is fixed below；Peripheral part 132 is set to form the acquisition channel that area is gradually increased,
To increase the area of acquisition channel, the collecting efficiency of VOCs volatilization gas is improved.
As another aspect of the present invention, since the boiling point of different VOCs ingredients is different, and heating element is from the beginning of
Heating reaches target temperature and needs certain time, therefore low-boiling VOCs ingredient volatilizees first, causes to measure the incipient stage
Low-boiling VOCs composition detection value is higher, and the low-boiling VOCs composition detection value of follow-up phase is relatively low.The present invention one changes
Into embodiment soil VOCs environmental protection tests device structure referring to Fig. 3, VOCs acquires equipment 100 and VOCs measuring device
Air container 300 is set between 200, and air container 300 is adopted by first switch 101 and second switch 102 and VOCs respectively
Collect equipment 100 and VOCs measuring device 200 connects.Temperature sensor is arranged in the heating element position that VOCs acquires equipment 100
104, controller 103 controls the heating of heating element, while according to the detected value of temperature sensor 104, determining first switch 101
And the unlatching and closing of second switch 102.
Specifically, the soil VOCs environmental protection tests device of the present embodiment is when detecting, inputted by human-computer interaction device
The VOCs ingredient for needing to detect, controller 103 determine the volatile organic matter for needing to detect according to the input of human-computer interaction device
Ingredient, so that it is determined that the highest Volatile Organic Components of boiling point in the VOCs ingredient for needing to detect；It is highest according to boiling point
VOCs ingredient determines the heating temperature of heating element, which is greater than the boiling point of the highest Volatile Organic Components of boiling point
30~50 degree；Drill bit 10 is drilled into the specified investigation depth in soil by VOCs acquisition equipment 100；Controller 103 opens first
Switch 101 closes second switch 102, the temperature of heating element is heated to heating temperature, to make the VOCs ingredient in soil
It evaporate into air container 300 successively, is detected at this time without VOCs；Controller 103 monitors the temperature of temperature sensor, is heating
After element reaches heating temperature and is continued above specific time, which is 2~5 minutes, at this time all VOCs ingredients
All volatilization finishes, and closes first switch 101, opens second switch 102, measures VOCs ingredient by VOCs measuring device 200
Content.The setting of above-mentioned improvement embodiment through the invention avoids low boiling point VOCs ingredient during temp of heating element rises
The problem of decline of detection accuracy caused by volatilizing.
As another aspect of the present invention, since the ingredient of VOCs in soil is different, by heating element heats to adding
All VOCs ingredients can not necessarily be volatilized and be finished by hot temperature specific time, the further preferred embodiment ginseng of the present invention
See Fig. 4, pressure transducer 105 is set in air container 300, and controller 103 is when detecting according to temperature sensor 104 and pressure
The detected value control first switch 101 of strong sensor 105 and the unlatching and closing of second switch 102.Specifically, this implementation
The soil VOCs environmental protection tests device of example inputs the VOCs ingredient for needing to detect, control when detecting, by human-computer interaction device
Device 103 processed determines the Volatile Organic Components for needing to detect according to the input of human-computer interaction device, so that it is determined that needing to detect
VOCs ingredient in the highest Volatile Organic Components of boiling point；Heating element is determined according to the highest VOCs ingredient of boiling point
Heating temperature, the heating temperature are greater than 30~50 degree of boiling point of the highest Volatile Organic Components of boiling point；VOCs acquires equipment
100 are drilled into drill bit 10 the specified investigation depth in soil；Controller 103 opens first switch 101, closes second switch
102, the temperature of heating element is heated to heating temperature, so that the VOCs ingredient in soil be made to evaporate into air container successively
300, it is detected at this time without VOCs；Controller 103 monitors the pressure of pressure transducer 105, when the air container pressure
When time diffusion value is less than threshold value, which is lesser value, can be determined by test, show all VOCs ingredient bases at this time
This volatilization finishes, and closes first switch 101, opens second switch 102, measures VOCs ingredient by VOCs measuring device 200
Content.By above-mentioned preferred embodiment, determination VOCs that can be more accurate volatilizees the time finished, so as to more smart
True measures VOCs ingredient.
The above embodiments are merely illustrative of the technical scheme of the present invention and are not intended to be limiting thereof, although referring to above-described embodiment pair
The present invention is described in detail, it should be understood by those ordinary skilled in the art that: still can be to of the invention specific
Embodiment is modified or replaced equivalently, and without departing from any modification of spirit and scope of the invention or equivalent replacement,
It is intended to be within the scope of the claims of the invention.
Claims (7)
1. a kind of soil VOCs environmental protection tests device, comprising: VOCs acquires equipment and VOCs measuring device；The VOCs acquisition
Component includes drill bit, casing, pushing ram and motor；The drill bit is used to pierce the soil of set depth, be arranged inside for
The heating element that soil is heated；The pushing ram is connected and is driven by motor with drill bit, for driving drill bit to pierce soil
In earth；Described sleeve pipe is set to outside the pushing ram, the airflow channel of the interior VOCs for forming volatilization；The VOCs measurement is set
Standby is gas chromatograph, receives the VOCs of the volatilization of VOCs acquisition equipment acquisition, measurement wherein various volatile organic matters at
The content divided；It is characterized by: the drill bit includes first part, second part and Part III；The first part is
Taper is located at drill end, is set as solid construction；The second part is truncated cone-shaped, is located in the middle part of drill bit, is set as
It is hollow, it is internal that heating element is set；The Part III is located at drill bit afterbody, and air hole is arranged in anchor ring comprising center
Solid section and peripheral part, solid portion cross-section is that top is less than following rectangle, and top fixes with pushing ram, under
Side and the top of second part are fixed, and peripheral part is made to form the acquisition channel that area is gradually increased；The heating element is located at
Below the acquisition channel, the soil around heating element is heated, the soil is located at acquisition channel opening lower section,
The VOCs of soil heating volatilization is flowed up, so that the air hole by Part III is imported into acquisition channel.
2. soil VOCs environmental protection tests device according to claim 1, it is characterised in that: the air hole is by waterproof and breathable
Film sealing.
3. soil VOCs environmental protection tests device according to claim 2, it is characterised in that: the heating element is resistance
Silk.
4. soil VOCs environmental protection tests device according to claim 3, it is characterised in that: above the heating element and
Heat insulation layer is arranged in lower section.
5. soil VOCs environmental protection tests device according to claim 4, it is characterised in that: the VOCs includes methanol, second
Alcohol, isopropanol, acetone, normal propyl alcohol, butanone, ethyl acetate, isopropyl acetate, n-butanol, benzene, propylene glycol monomethyl ether, acetic acid positive third
One of ester, 4-methyl-2 pentanone, propylene-glycol ethyl ether, toluene, n-butyl acetate, ethylbenzene, dimethylbenzene, cyclohexanone are more
Kind.
6. soil VOCs environmental protection tests device according to claim 5, it is characterised in that: it further include human-computer interaction device,
It is used to input the VOCs ingredient for needing to detect.
7. soil VOCs environmental protection tests device according to claim 6, it is characterised in that: the human-computer interaction device can also
Enough testing results by VOCs measuring device export.
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| CN201710460055.4A CN107084862B (en) | 2017-06-17 | 2017-06-17 | A kind of soil VOCs environmental protection tests device |
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| CN201710460055.4A CN107084862B (en) | 2017-06-17 | 2017-06-17 | A kind of soil VOCs environmental protection tests device |
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| CN107084862B true CN107084862B (en) | 2019-07-12 |
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| CN108107189A (en) * | 2017-12-14 | 2018-06-01 | 百奥森（江苏）食品安全科技有限公司 | A kind of ambient soil detection device |
| CN109298689B (en) * | 2018-09-21 | 2021-04-06 | 云南中烟工业有限责任公司 | Method for determining temperature of cylinder wall on line based on content of amino acids in cut tobacco |
| CN110208074A (en) * | 2019-05-21 | 2019-09-06 | 上海市环境科学研究院 | A kind of Volatile Organic Compounds in Soil device for fast detecting and its detection method |
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| DE102004039570B4 (en) * | 2004-08-14 | 2007-03-01 | Lts Lohmann Therapie-Systeme Ag | Monitoring system for collecting and transdermal further diffusion of environmental contaminants containing air and method thereto |
| CN102288457B (en) * | 2011-05-11 | 2013-04-10 | 北京市环境保护科学研究院 | Portable system for collecting volatile gas in soil and collecting method thereof |
| CN104181284B (en) * | 2014-07-11 | 2016-03-09 | 上海市政工程设计研究总院（集团）有限公司 | A kind of Volatile Organic Compounds in Soil continuous detection apparatus and detection method thereof |
| CN204575398U (en) * | 2015-04-15 | 2015-08-19 | 刘骁勇 | Soil gas stopple coupon |
| CN205449593U (en) * | 2015-12-22 | 2016-08-10 | 北京高能时代环境技术股份有限公司 | Soil organic matter sampling device |
| CN105548481A (en) * | 2015-12-29 | 2016-05-04 | 南京索益盟环保科技有限公司 | Method for monitoring soil gas by field surveying |
| CN205449589U (en) * | 2016-03-11 | 2016-08-10 | 山东嘉源检测技术有限公司 | Soil environment detects and uses gas sampling device |
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Effective date of registration: 20190624 Address after: 211500 Longzhong Road, Liuhe Economic Development Zone, Nanjing, Jiangsu 88 Applicant after: Jiangsu China source engineering management Limited by Share Ltd Address before: 050090 No. 369 xinshizhong Road, Qiaoxi District, Shijiazhuang, Hebei Applicant before: Jiang Cuizhen |