CN209979312U - Atmosphere volatile organic compounds pollutes early warning control and collection system - Google Patents
Atmosphere volatile organic compounds pollutes early warning control and collection system Download PDFInfo
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- CN209979312U CN209979312U CN201920084443.1U CN201920084443U CN209979312U CN 209979312 U CN209979312 U CN 209979312U CN 201920084443 U CN201920084443 U CN 201920084443U CN 209979312 U CN209979312 U CN 209979312U
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- 239000012855 volatile organic compound Substances 0.000 title claims abstract description 36
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims abstract description 68
- 238000005070 sampling Methods 0.000 claims abstract description 60
- 229930195733 hydrocarbon Natural products 0.000 claims abstract description 37
- 150000002430 hydrocarbons Chemical class 0.000 claims abstract description 35
- 239000004215 Carbon black (E152) Substances 0.000 claims abstract description 33
- 238000004458 analytical method Methods 0.000 claims abstract description 12
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 16
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 16
- 238000012544 monitoring process Methods 0.000 claims description 12
- 239000012528 membrane Substances 0.000 claims description 10
- 239000002245 particle Substances 0.000 claims description 9
- 238000001514 detection method Methods 0.000 abstract description 4
- 239000007789 gas Substances 0.000 description 20
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 6
- 230000008859 change Effects 0.000 description 5
- 239000005416 organic matter Substances 0.000 description 5
- 241000894007 species Species 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- 238000012806 monitoring device Methods 0.000 description 3
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 3
- -1 oxygen hydrocarbons Chemical class 0.000 description 3
- 239000013618 particulate matter Substances 0.000 description 3
- RRHGJUQNOFWUDK-UHFFFAOYSA-N Isoprene Chemical compound CC(=C)C=C RRHGJUQNOFWUDK-UHFFFAOYSA-N 0.000 description 2
- 238000009835 boiling Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 125000005575 polycyclic aromatic hydrocarbon group Chemical group 0.000 description 2
- 239000002028 Biomass Substances 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 241000196324 Embryophyta Species 0.000 description 1
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- 239000005977 Ethylene Substances 0.000 description 1
- 206010019233 Headaches Diseases 0.000 description 1
- 244000124853 Perilla frutescens Species 0.000 description 1
- 235000004348 Perilla frutescens Nutrition 0.000 description 1
- 238000003915 air pollution Methods 0.000 description 1
- 150000001299 aldehydes Chemical class 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000000711 cancerogenic effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- NEHMKBQYUWJMIP-NJFSPNSNSA-N chloro(114C)methane Chemical compound [14CH3]Cl NEHMKBQYUWJMIP-NJFSPNSNSA-N 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000002290 gas chromatography-mass spectrometry Methods 0.000 description 1
- 150000008282 halocarbons Chemical class 0.000 description 1
- 231100000869 headache Toxicity 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 229930003658 monoterpene Natural products 0.000 description 1
- 150000002773 monoterpene derivatives Chemical class 0.000 description 1
- 235000002577 monoterpenes Nutrition 0.000 description 1
- IJGRMHOSHXDMSA-UHFFFAOYSA-N nitrogen Substances N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000002957 persistent organic pollutant Substances 0.000 description 1
- 238000006552 photochemical reaction Methods 0.000 description 1
- 230000008635 plant growth Effects 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 210000002345 respiratory system Anatomy 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 208000024891 symptom Diseases 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
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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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- Sampling And Sample Adjustment (AREA)
- Other Investigation Or Analysis Of Materials By Electrical Means (AREA)
Abstract
The utility model relates to an atmosphere volatile organic compounds pollutes early warning control and collection system, including total hydrocarbon analysis appearance of non-methane (1), its characterized in that: the front section of an air inlet of the non-methane total hydrocarbon analyzer (1) is connected with one end of a three-way joint A, the other end of the three-way joint A is connected with a particulate filter (2), and the other end of the three-way joint A is connected with one end of a first two-way electromagnetic valve (3); the other end of the first two-way electromagnetic valve (3) is connected with one end of a three-way joint B, the other end of the three-way joint B is connected with a sampling pump (4), and the other end of the three-way joint B is connected with a gas collection device (10). The utility model discloses a control terminal can trigger opening of mass flow controller when total hydrocarbon detection concentration of non-methane surpasses threshold value concentration to accomplish and pollute atmospheric accurate collection.
Description
Technical Field
The utility model relates to an atmosphere volatility organic matter pollutes early warning control and collection system, especially a pollution early warning monitored control system about atmosphere volatility organic matter.
Background
The atmospheric Volatile Organic Compounds (VOCs) are volatile organic compounds with boiling points of 50-260 ℃ and saturated vapor pressure of over 133.32Pa at room temperature, mainly comprise hydrocarbons, oxygen hydrocarbons, nitrogen hydrocarbons, halogenated hydrocarbons, low-boiling polycyclic aromatic hydrocarbons and the like, and are organic pollutants with common and complex components in indoor and outdoor atmosphere. The volatile organic compounds in the atmosphere can stimulate human eyes and respiratory tracts to cause headache and other symptoms, and some components such as benzene, polycyclic aromatic hydrocarbon, aldehyde and the like have carcinogenic effect on human bodies; under the irradiation of sunlight, the atmospheric volatile organic compounds and nitrogen oxides and the like can generate photochemical reaction to harm human health and plant growth.
The atmospheric volatile organic compounds are multiple and complex in components, and are often detected by adopting a gas chromatography-mass spectrometry (GC-MS) mode, the method is low in time resolution, high in time and energy consumption and high in monitoring cost under the condition that air pollution is not serious. In addition, for the characteristic that the atmospheric volatile organic compounds mainly consist of elements such as carbon, hydrogen, and the like, a gas chromatography-hydrogen flame ionization detector method (GC-FID) is often used for monitoring the non-methane total hydrocarbons in the atmosphere, the method can obtain higher time resolution, and can obtain more accurate concentration change data of the Total Volatile Organic Compounds (TVOCs) in the atmosphere, but cannot obtain the concentration data of a single VOCs species.
Research shows that the species in the volatile organic compounds can be analyzed to analyze the emission sources of VOCs in the atmosphere, such as isoprene, monoterpene and the like mainly released by plant sources, ethylene, benzene, toluene and the like mainly emitted by gasoline vehicles, ethylene, propylene and the like mainly emitted by diesel vehicles, and C mainly emitted by coal-fired sources2～C3Moiety and C6In part, biomass combustion characteristics emit methyl chloride, etc. Thus, depending on the trend of the concentration of certain species in the species of VOCs, specific sources of release can be characterized and tracked for contamination.
The existing gas chromatography-mass spectrometer is difficult to obtain higher time resolution, cannot capture the instantaneous concentration change of VOCs species, and can even dilute the instantaneous peak concentration of VOCs by longer sampling time; and a non-methane total hydrocarbon analyzer cannot determine the concentration of each component of the VOCs, so that both cannot realize the analysis of the instantaneous pollution emission source of the VOCs. Therefore, it is necessary to establish a device capable of early warning and monitoring the pollution of the volatile organic compounds in the atmosphere.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a pollution early warning monitoring device that can be used to atmosphere volatility organic matter.
The utility model provides an atmosphere volatile organic compounds pollutes early warning control and collection system, includes total hydrocarbon analysis appearance 1 of non-methane, its characterized in that: the front section of an air inlet of the non-methane total hydrocarbon analyzer 1 is connected with one end of a three-way joint A, the other end of the three-way joint A is connected with a particulate filter 2, and the other end of the three-way joint A is connected with one end of a first two-way electromagnetic valve 3; the other end of the first two-way electromagnetic valve 3 is connected with one end of a three-way joint B, the other end of the three-way joint B is connected with a sampling pump 4, the other end of the three-way joint B is connected with one end of a second two-way electromagnetic valve 5 of a gas collection device 10, the gas collection device 10 comprises the second two-way electromagnetic valve 5, a sampling tank 6 and a vacuum gauge 7, wherein the other end of the second two-way electromagnetic valve 5 is sequentially connected with the vacuum gauge 7 and the sampling tank 6; the non-methane total hydrocarbon analyzer 1, the first two-way electromagnetic valve 3, the second two-way electromagnetic valve 5 and the vacuum gauge 7 are respectively connected with a control terminal 8.
The sampling tank 6 adopts a suma tank with silanized inner wall.
First two-way solenoid valve 3 and second two-way solenoid valve 5 all are the PTFE solenoid valve, and wherein first two-way solenoid valve 3 is normally open solenoid valve, and second two-way solenoid valve 5 is normally closed solenoid valve.
The particle filter 2 adopts a PTFE filter membrane with the diameter of 30-60 mm, and the sampling pump 4 is a vacuum pump.
The particle filter 2 can also be a PTFE filter membrane with a diameter of 47 mm.
One or more three-way joints are also connected between the three-way joint B and the sampling pump 4, and the lower end of each three-way joint is connected with a gas collecting device 10.
The utility model discloses owing to adopt above technical scheme, it has following advantage: 1. the utility model discloses a total hydrocarbon analyzer of non-methane has higher time resolution, can realize near the station the continuous observation of the total hydrocarbon of non-methane of atmosphere, can be used to aassessment this station atmosphere volatility organic matter's general pollution situation. 2. The utility model adopts the mass flow controller to control the sample injection flow of the Perilla frutescens tank, and ensures stable sample injection; meanwhile, the mass flow meter can also realize the function of stopping the airflow, thereby avoiding the backflow of the gas in the Suma tank and reducing the use of an electromagnetic valve. 3. The utility model discloses a vacuum gauge can survey the vacuum of mass flow meter rear end to whether the inspection pipeline leaks gas. 4. The utility model discloses a control terminal can trigger opening of mass flow controller when total hydrocarbon detection concentration of non-methane surpasses threshold value concentration to accomplish and pollute atmospheric accurate collection. 5. The utility model discloses a control terminal can launch the GPRS signal to inform operating personnel suma jar and accomplish the sampling, and remind operating personnel in time to change the new suma jar and carry out jar interior gas detection.
Drawings
Fig. 1, the schematic diagram of the gas circuit of the present invention.
Fig. 2 is a schematic view of the overall structure of the present invention.
Fig. 3, the utility model discloses a gas circuit schematic diagram when many sets of sampling device.
Fig. 4 is a schematic view of the connection structure of each component of the present invention.
Wherein, 1 is non-methane total hydrocarbon analyzer, 2 is particulate matter filter, 3 is first two-way solenoid valve, 4 is the sampling pump, 5 is second two-way solenoid valve, 6 is the sampling tank, 7 is the vacuum gauge, 8 is control terminal, 10 is gas acquisition device, and A is three way connection A, and B is three way connection B.
Detailed Description
The utility model provides an atmosphere volatile organic compounds pollutes early warning control and collection system, includes total hydrocarbon analysis appearance 1 of non-methane, its characterized in that: the front section of an air inlet of the non-methane total hydrocarbon analyzer 1 is connected with one end of a three-way joint A, the other end of the three-way joint A is connected with a particulate filter 2, and the other end of the three-way joint A is connected with one end of a first two-way electromagnetic valve 3; the other end of the first two-way electromagnetic valve 3 is connected with one end of a three-way joint B, the other end of the three-way joint B is connected with a sampling pump 4, the other end of the three-way joint B is connected with one end of a second two-way electromagnetic valve 5 of a gas collection device 10, the gas collection device 10 comprises the second two-way electromagnetic valve 5, a sampling tank 6 and a vacuum gauge 7, wherein the other end of the second two-way electromagnetic valve 5 is sequentially connected with the vacuum gauge 7 and the sampling tank 6; the non-methane total hydrocarbon analyzer 1, the first two-way electromagnetic valve 3, the second two-way electromagnetic valve 5 and the vacuum gauge 7 are respectively connected with a control terminal 8.
The sampling tank 6 adopts a suma tank with silanized inner wall.
First two-way solenoid valve 3 and second two-way solenoid valve 5 all are the PTFE solenoid valve, and wherein first two-way solenoid valve 3 is normally open solenoid valve, and second two-way solenoid valve 5 is normally closed solenoid valve.
The particle filter 2 adopts a PTFE filter membrane with the diameter of 30-60 mm, and the sampling pump 4 is a vacuum pump.
The particle filter 2 can also be a PTFE filter membrane with a diameter of 47 mm.
One or more three-way joints are also connected between the three-way joint B and the sampling pump 4, and the lower end of each three-way joint is connected with a gas collecting device 10.
In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides an atmosphere volatile organic compounds pollutes early warning monitoring device which characterized in that: it includes the total hydrocarbon analysis appearance of a non-methane, a three way connection A is connected to the total hydrocarbon analysis appearance air inlet anterior segment of non-methane, a particulate matter filter is connected to three way connection A one end, first two-way solenoid valve is connected to the three way connection A other end, a three way connection B is connected to first two-way solenoid valve rear end, a sampling pump is connected to three way connection B one end, another two-way solenoid valve B is connected to the three way connection B other end, a sampling jar is connected to two-way solenoid valve B rear end, two-way solenoid valve B with there is a vacuum rule between the sampling jar, the total hydrocarbon analysis appearance of non-methane first two-way solenoid valve, second two-way solenoid valve with a control terminal is equallyd divide to the vacuum rule.
And the three-way joint A and the three-way joint B both adopt PTFE three-way joints.
The sampling pump adopts a vacuum pump.
The sampling tank is a suma tank.
The control terminal can realize the transmission of GPRS signals.
The present invention will be described in detail with reference to the accompanying drawings and examples.
As shown in fig. 1 and 2, the utility model discloses a total hydrocarbon analyzer 1 of non-methane, its introduction port front end has a three way connection A, and its one end is particulate filter 2, and the other end is first two-way solenoid valve 3, and a three way connection B is connected to first two-way solenoid valve 3 rear end, and its one termination sampling pump 4, another termination second two-way solenoid valve 5, and a sampling jar 6 is connected to second two-way solenoid valve 5 rear end, has a vacuum rule 7 between two-way solenoid valve 5 and the sampling jar 6. The non-methane total hydrocarbon analyzer 1, the first two-way electromagnetic valve 3, the second two-way electromagnetic valve 5 and the vacuum gauge 7 are all connected with a control terminal 8.
In the above embodiment, the sample gas entering the non-methane total hydrocarbon analyzer 1 can be detected after being filtered by the particulate filter 2 to remove particulate matter, and the particulate filter 2 can be a PTFE filter membrane with a diameter of 47 mm.
In the above embodiment, the first two-way solenoid valve 3 and the second two-way solenoid valve 5 are PTFE solenoid valves, wherein the two-way solenoid valve 3 is a normally open solenoid valve, and the first two-way solenoid valve 5 is a normally closed solenoid valve.
In the above embodiment, the sampling pump 4 may be a vacuum pump.
In the above embodiment, the sampling tank 6 is a suma tank whose inner wall is silanized and passivated.
In the above embodiment, the second two-way solenoid valve 5, the sampling tank 6, and the vacuum gauge 7 may be arranged in a plurality of sets, and connected to the line between the first two-way solenoid valve 3 and the sampling pump 4.
In the above embodiment, the control terminal 8 can collect data of the non-methane total hydrocarbon analyzer 1 and the vacuum gauge 7, can control the opening and closing of the first two-way solenoid valve 3 and the second two-way solenoid valve 5, and can also transmit a GPRS signal.
The utility model discloses a theory of operation does:
the atmospheric non-methane total hydrocarbon analyzer can obtain the concentration data information of atmospheric volatile organic compounds with higher time resolution, but can not distinguish the types of various volatile organic compounds in the atmosphere; and the time resolution of the gas chromatography-mass spectrometer is low, so that transient and instantaneous pollutant concentration change is difficult to observe. The utility model discloses a suma jar carries out accurate sampling to the contaminated atmosphere, but the pollution of early warning atmosphere volatility organic matter can deduce the pollution source according to the analysis result of suma jar at last.
The working process of the utility model is as follows:
1. a preliminary stage. Firstly, a sampling tank 6 is connected into a pipeline, a valve of the sampling tank 6 is in a closed state, the two-way electromagnetic valve 3 is closed, and the second two-way electromagnetic valve 5 is opened. Under the work of sampling pump 4, the pipeline between sampling tank 6 to sampling pump 4 is pumped into the vacuum, if the vacuum gage reading can rise to certain vacuum degree of setting this moment, then indicate that the pipe connection is intact, no gas leakage, open first two-way solenoid valve 3 this moment, close second two-way solenoid valve 5 to 6 valves of sampling tank are opened.
2. And (5) sampling. In the sampling stage, the first two-way electromagnetic valve 3 is in an open state, and the atmosphere enters the sampling pump 4 to clean the pipeline besides entering the non-methane total hydrocarbon analyzer 1. When the control terminal 8 finds that the concentration value of the non-methane total hydrocarbon analyzer exceeds a set threshold value, a sampling stage is started, the second two-way electromagnetic valve 5 is opened, and the atmospheric sample enters the Suma tank. When the vacuum degree measured by the vacuum gauge 7 is lower than a certain set vacuum degree, the sampling is finished, at the moment, the control terminal 8 closes the second two-way electromagnetic valve 5, informs workers of completing the sampling, and timely replaces a new suma tank.
3. And (5) a detection stage. After receiving the notice, the staff closes the valve of the sampling tank 6 and detects the collected gas. The gas collected by the sampling tank 6 can be analyzed and detected by a gas chromatography-mass spectrometer.
The utility model discloses can dispose many sets of sampling device of compriseing two-way solenoid valve 5, sampling tank 6 and vacuum gauge 7, connect in the pipeline between two-way solenoid valve 3 and sampling pump 4, can realize the atmospheric collection of more pollution point, as shown in fig. 3.
The utility model discloses only explain with above-mentioned embodiment, the structure of each part, set up the position and connect all can change to some extent on the basis of the technical scheme of the utility model discloses on the basis of technical scheme, all according to the utility model discloses the principle is to the improvement that individual part goes on and the transform of equivalence, all should not get rid of within the protection scope of the utility model.
The utility model provides an atmosphere volatile organic compounds pollutes early warning monitoring device which characterized in that: it includes the total hydrocarbon analysis appearance of a non-methane, a three way connection A is connected to the total hydrocarbon analysis appearance air inlet anterior segment of non-methane, a particulate filter is connected to three way connection B one end, a first two-way solenoid valve is connected to the three way connection A other end, another three way connection B is connected to first two-way solenoid valve rear end, a sampling pump is connected to three way connection B one end, the second two-way solenoid valve is connected to the three way connection B other end, a sampling tank is connected to the second two-way solenoid valve rear end, the second two-way solenoid valve with connect a vacuum gauge between the sampling tank, the total hydrocarbon analysis appearance of non-methane two first logical solenoid valves and second two-way solenoid valve with a control terminal is all connected to the vacuum gauge.
The non-methane total hydrocarbon analyzer can achieve acquisition of non-methane total hydrocarbon concentration data with high time resolution.
The particle filter used was a PTFE filter membrane of 47mm diameter.
The first two-way solenoid valve and the second two-way solenoid valve adopt PTFE solenoid valves, wherein the first two-way solenoid valve is normally open solenoid valve, and the second two-way solenoid valve is normally closed solenoid valve.
The sampling tank adopts a suma tank with silanized inner wall.
The control terminal is connected with the non-methane total hydrocarbon analyzer, the first two-way electromagnetic valve, the second two-way electromagnetic valve and the vacuum gauge.
Claims (10)
1. The utility model provides an atmosphere volatile organic compounds pollutes early warning control and collection system, includes total hydrocarbon analysis appearance of non-methane (1), its characterized in that: the front section of an air inlet of the non-methane total hydrocarbon analyzer (1) is connected with one end of a three-way joint A, the other end of the three-way joint A is connected with a particulate filter (2), and the other end of the three-way joint A is connected with one end of a first two-way electromagnetic valve (3); the other end of the first two-way electromagnetic valve (3) is connected with one end of a three-way joint B, the other end of the three-way joint B is connected with a sampling pump (4), the other end of the three-way joint B is connected with one end of a second two-way electromagnetic valve (5) of a gas collection device (10), the gas collection device (10) comprises the second two-way electromagnetic valve (5), a sampling tank (6) and a vacuum gauge (7), wherein the other end of the second two-way electromagnetic valve (5) is sequentially connected with the vacuum gauge (7) and the sampling tank (6); the non-methane total hydrocarbon analyzer (1), the first two-way electromagnetic valve (3), the second two-way electromagnetic valve (5) and the vacuum gauge (7) are respectively connected with a control terminal (8).
2. The atmospheric volatile organic compound pollution early-warning monitoring and collecting device of claim 1, wherein: the sampling tank (6) adopts a suma tank with silanized inner wall.
3. The atmospheric volatile organic compound pollution early-warning monitoring and collecting device as claimed in claim 1 or 2, wherein: first two-way solenoid valve (3) and second two-way solenoid valve (5) all be the PTFE solenoid valve, wherein first two-way solenoid valve (3) are normally open solenoid valve, second two-way solenoid valve (5) are normally closed solenoid valve.
4. The atmospheric volatile organic compound pollution early-warning monitoring and collecting device as claimed in claim 1 or 2, wherein: the particle filter (2) adopts a PTFE filter membrane with the diameter of 30-60 mm.
5. The atmospheric volatile organic compound pollution early-warning monitoring and collecting device of claim 3, wherein: the particle filter (2) adopts a PTFE filter membrane with the diameter of 30-60 mm, and the sampling pump (4) is a vacuum pump.
6. The atmospheric volatile organic compound pollution early-warning monitoring and collecting device of claim 4, wherein: the particle filter (2) adopts a PTFE filter membrane with the diameter of 47 mm.
7. The atmospheric volatile organic compound pollution early-warning monitoring and collecting device of claim 5, wherein: the particle filter (2) adopts a PTFE filter membrane with the diameter of 47 mm.
8. The atmospheric volatile organic compound pollution early-warning monitoring and collecting device as claimed in claim 1 or 2, wherein: one or more three-way joints are also connected between the three-way joint B and the sampling pump (4), and the lower end of each three-way joint is connected with a gas collecting device (10).
9. The atmospheric volatile organic compound pollution early-warning monitoring and collecting device of claim 3, wherein: one or more three-way joints are also connected between the three-way joint B and the sampling pump (4), and the lower end of each three-way joint is connected with a gas collecting device (10).
10. The atmospheric volatile organic compound pollution early-warning monitoring and collecting device of claim 5, wherein: one or more three-way joints are also connected between the three-way joint B and the sampling pump (4), and the lower end of each three-way joint is connected with a gas collecting device (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920084443.1U CN209979312U (en) | 2019-01-18 | 2019-01-18 | Atmosphere volatile organic compounds pollutes early warning control and collection system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920084443.1U CN209979312U (en) | 2019-01-18 | 2019-01-18 | Atmosphere volatile organic compounds pollutes early warning control and collection system |
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| Publication Number | Publication Date |
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| CN209979312U true CN209979312U (en) | 2020-01-21 |
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| CN201920084443.1U Expired - Fee Related CN209979312U (en) | 2019-01-18 | 2019-01-18 | Atmosphere volatile organic compounds pollutes early warning control and collection system |
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