CN112540119A - TVOCs organized online monitoring system and working method thereof - Google Patents
TVOCs organized online monitoring system and working method thereof Download PDFInfo
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- CN112540119A CN112540119A CN202011383246.3A CN202011383246A CN112540119A CN 112540119 A CN112540119 A CN 112540119A CN 202011383246 A CN202011383246 A CN 202011383246A CN 112540119 A CN112540119 A CN 112540119A
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 35
- 238000000034 method Methods 0.000 title claims abstract description 13
- 238000005070 sampling Methods 0.000 claims abstract description 33
- 239000000523 sample Substances 0.000 claims abstract description 25
- 238000001514 detection method Methods 0.000 claims abstract description 22
- 230000005540 biological transmission Effects 0.000 claims abstract description 12
- 238000004140 cleaning Methods 0.000 claims description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 7
- 230000002572 peristaltic effect Effects 0.000 claims description 6
- 238000004891 communication Methods 0.000 claims description 3
- 239000000428 dust Substances 0.000 claims description 3
- 238000001914 filtration Methods 0.000 claims description 3
- 239000000779 smoke Substances 0.000 claims description 3
- 238000007791 dehumidification Methods 0.000 claims description 2
- 238000012423 maintenance Methods 0.000 abstract description 7
- 239000012855 volatile organic compound Substances 0.000 abstract description 7
- 239000000126 substance Substances 0.000 abstract description 5
- 238000005507 spraying Methods 0.000 abstract description 3
- 230000000903 blocking effect Effects 0.000 abstract description 2
- 238000011010 flushing procedure Methods 0.000 abstract description 2
- 239000003973 paint Substances 0.000 abstract description 2
- 239000002245 particle Substances 0.000 abstract description 2
- 238000001179 sorption measurement Methods 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 24
- 230000009286 beneficial effect Effects 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 241001391944 Commicarpus scandens Species 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 206010007269 Carcinogenicity Diseases 0.000 description 1
- 230000009692 acute damage Effects 0.000 description 1
- 230000002238 attenuated effect Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 231100000260 carcinogenicity Toxicity 0.000 description 1
- 230000007670 carcinogenicity Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000007794 irritation Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 210000004400 mucous membrane Anatomy 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 239000002910 solid waste Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/62—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating the ionisation of gases, e.g. aerosols; by investigating electric discharges, e.g. emission of cathode
- G01N27/64—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating the ionisation of gases, e.g. aerosols; by investigating electric discharges, e.g. emission of cathode using wave or particle radiation to ionise a gas, e.g. in an ionisation chamber
- G01N27/66—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating the ionisation of gases, e.g. aerosols; by investigating electric discharges, e.g. emission of cathode using wave or particle radiation to ionise a gas, e.g. in an ionisation chamber and measuring current or voltage
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B5/00—Cleaning by methods involving the use of air flow or gas flow
- B08B5/02—Cleaning by the force of jets, e.g. blowing-out cavities
-
- 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
- G01N1/24—Suction devices
-
- 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
- G01N1/34—Purifying; Cleaning
-
- 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
- G01N1/42—Low-temperature sample treatment, e.g. cryofixation
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Immunology (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Physics & Mathematics (AREA)
- Pathology (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Molecular Biology (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Toxicology (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The invention discloses a TVOCs organized online monitoring system and a working method thereof. The system comprises a monitoring center and a monitoring terminal; the monitoring terminal comprises two paths of detection units which are arranged in parallel; the detection unit is sequentially communicated with a sampling probe, a filter, an electronic refrigerator, a flowmeter, a TVOC online detector and a sampling air pump; a standard gas valve port is arranged between the electronic refrigerator and the flowmeter; the TVOC on-line detector is electrically connected with a data acquisition and transmission instrument. Aiming at monitoring VOCs at the front end of a centralized collecting and processing facility in a paint spraying and baking workshop in the automobile maintenance industry, the system has large-particle VOCs gas which is easy to adsorb and block a sampling pipeline, reserves a gas valve port, and performs back flushing on residual substances of a filter element of a sampling probe by connecting compressed gas of a maintenance factory at fixed time, thereby furthest ensuring that the sampling probe and the sampling pipeline reduce adsorption and blocking.
Description
Technical Field
The invention relates to a TVOCs organized on-line monitoring system and a working method thereof, belonging to the technical field of environment-friendly monitoring equipment.
Background
Researchers of indoor air quality generally refer to all indoor Organic gaseous substances they sample for analysis as TVOC, which is an abbreviation of the first letter of the three words of Voice Organic Compound, and the various VOCs being measured are collectively referred to as Total Volatile Organic TVOC (Total Volatile Organic Compounds).
The TVOC is one of three kinds of pollution which have serious influence on indoor air quality. TVOC is an organic substance with saturated vapor pressure exceeding 133.32pa at room temperature, the boiling point of the TVOC is 50-250 ℃, the TVOC can exist in air in a form of evaporation at room temperature, and the TVOC has toxicity, irritation, carcinogenicity and special smell, can affect skin and mucous membrane, and can cause acute damage to human body.
In the automobile maintenance industry, a large amount of waste gas, solid waste, waste water and the like containing toxic and harmful substances are generated in the automobile maintenance process, so that the environment is polluted and damaged, and the current TVOC in the automobile maintenance industry is mainly realized by means of manpower and cannot meet the actual requirement.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides an organized TVOCs online monitoring system.
The invention also provides a working method of the TVOCs organized online monitoring system.
The invention provides the following technical scheme:
a TVOCs organized online monitoring system comprises a monitoring center and a monitoring terminal; the monitoring terminal comprises two paths of detection units which are arranged in parallel; the detection unit is sequentially communicated with a sampling probe, a filter, an electronic refrigerator, a flowmeter, a TVOC online detector and a sampling air pump; a standard gas valve port is arranged between the electronic refrigerator and the flowmeter; the TVOC on-line detector is electrically connected with a data acquisition and transmission instrument; the data acquisition and transmission instrument is in communication connection with the monitoring center; the detection unit is also provided with a pressure dividing pipeline, and the pressure dividing pipeline is a pipeline which is arranged at the inlet of the electronic refrigerator and the outlet of the TVOC on-line detector in parallel; the pressure dividing pipeline is communicated with the inlet of the electronic refrigerator through a needle valve. The electronic refrigerator removes the water in the sample gas, and the water is discharged through the peristaltic valve; the temperature is reduced, and the sensor cannot work at high temperature and is easy to break; the sample gas with the moisture removed and the temperature reduced is beneficial to improving the accuracy of test data and reducing the influence on the sensor.
Preferably, the two detection units arranged in parallel share one electronic refrigerator and one sampling air pump.
Preferably, both sides of the electronic refrigerator are provided with condensed water collecting pipes which are connected with peristaltic pumps.
Preferably, a cleaner is arranged between the inlet of the flowmeter and the outlet of the TVOC online detector in parallel; the cleaner is connected in parallel in the detection unit pipeline through an electromagnetic valve.
A working method of the TVOCs organized online monitoring system comprises the following steps:
1) respectively arranging the sampling probes of the two detection units at the front end and the rear end of an exhaust port to be detected; adding a standard gas through a standard gas valve port, and calibrating the TVOC on-line detector;
2) after the system is started, the sampling air pump runs, the sample air is collected to the filter through the sampling probe to be subjected to smoke dust filtration, and then enters the electronic refrigerator to be subjected to dehumidification;
3) the flow is controlled by a flowmeter after passing through a filter and an electronic refrigerator;
4) the treated gas passes through a needle valve to adjust a bypass, so that the gas stably enters the TVOC on-line detector;
5) the data acquisition transmission instrument acquires, stores and transmits data of the TVOC on-line detector, and synchronously transmits the data to the monitoring center for real-time monitoring.
Preferably, the working method of the TVOCs organized online monitoring system further comprises the cleaning step: switching to a cleaning state through an electromagnetic valve; and after being filtered by the cleaner, the gas is injected into the TVOC on-line detector to clean the PID sensor.
The invention has the beneficial effects that:
1. according to the invention, the front end and the rear end of the exhaust port treatment facility are collected in the automobile spraying workshop, and high and low detectors are adopted, so that the installation interval and cost are effectively reduced, and the discharged TVOCs are supervised;
2. aiming at monitoring VOCs at the front end of a centralized collection and treatment facility in a paint spraying and baking workshop in the automobile maintenance industry, VOCs gas with larger particles exists, and is easy to adsorb and block a sampling pipeline, a gas marking valve port is reserved in the system, and the residual substance of a filter element of a sampling probe is subjected to back flushing by connecting compressed gas of a maintenance factory, so that the adsorption and blocking of the sampling probe and the sampling pipeline are reduced to the maximum extent;
3, a PID sensor is arranged in the TVOC on-line detector, and the PID sensor is attenuated when being always in high-concentration VOC gas, so that zero drift and range drift of the TVOC on-line detector are caused, and a detection result is influenced; the TVOC on-line detector is provided with a cleaning gas path besides a detection gas path; the system is switched to a cleaning state through the electromagnetic valve, and the situation function is realized.
Drawings
Fig. 1 is a schematic view of a gas path structure of a monitoring terminal according to embodiment 2;
FIG. 2 is a schematic view showing the structure of the washer according to embodiment 2,
the device comprises a sampling probe 1, a sampling probe 2, a filter 3, an electronic refrigerator 4, a standard gas valve port 5, an electromagnetic valve 6, a flowmeter 7, a TVOC online detector 8, a sampling air pump 9, a cleaner 10, a peristaltic pump 11 and a partial pressure pipeline.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The product models used in the examples are shown in the following table:
example 1
A TVOCs organized online monitoring system comprises a monitoring center and a monitoring terminal; the monitoring terminal comprises two paths of detection units which are arranged in parallel; the detection unit is sequentially communicated with a sampling probe 1, a filter 2, an electronic refrigerator 3, a flowmeter 6, a TVOC online detector 7 and a sampling air pump 8; a standard gas valve port 4 is arranged between the electronic refrigerator 3 and the flowmeter 6; the TVOC online detector 7 is electrically connected with a data acquisition and transmission instrument; the data acquisition and transmission instrument is in communication connection with the monitoring center; the detection unit is also provided with a pressure dividing pipeline 11, and the pressure dividing pipeline 11 is a pipeline which is arranged at the inlet of the electronic refrigerator 3 and the outlet of the TVOC online detector 7 in parallel; the pressure dividing pipeline 11 is communicated with the inlet of the electronic refrigerator 3 through a needle valve. The electronic refrigerator 11 removes the water in the sample gas, and the water is discharged through the peristaltic valve; the temperature is reduced, and the sensor cannot work at high temperature and is easy to break; the sample gas with the moisture removed and the temperature reduced is beneficial to improving the accuracy of test data and reducing the influence on the sensor. The partial pressure pipeline 11 realizes partial pressure and shunt, and the pressure and the flow of the sampling air pump 8 can be adjusted through a partial pressure valve when being overlarge.
The TVOC on-line detector 7 of the embodiment adopts a 32-bit embedded ARM chip design with high performance and low power consumption; the embedded analog acquisition module, the embedded switching value input/output module, the embedded serial port module and the embedded wireless GPRS module can be adapted to most industrial instruments. The internal devices are all in industrial grade, and can adapt to data acquisition and transmission under most severe industrial environments. The system has the functions of power failure protection and data reissue, and ensures normal transmission of data.
The sampling probe 1 of the present embodiment is a ceramic filter with a diameter of 2 μm; the photoion sensor used by the TVOC on-line detector 7 in this embodiment adopts a PID-TECH series sensor of national baseline, and has the characteristics of long service life, high resolution and stable signal output.
Example 2
As shown in fig. 1.
The TVOCs organized online monitoring system as described in embodiment 1, two parallel detection units share one electronic refrigerator 3 and one sampling air pump 8. And condensed water collecting pipes are arranged on two sides of the electronic refrigerator 3 and are connected with peristaltic pumps 10.
A cleaner 9 is arranged in parallel between the inlet of the flowmeter 6 and the outlet of the TVOC online detector 7; the cleaner 9 is connected in parallel in the pipeline of the detection unit through the electromagnetic valve 5. The cleaner 9 of the present embodiment is a closed container provided with activated carbon, as shown in fig. 2.
Example 3
A method for operating a TVOCs organized on-line monitoring system as described in embodiment 1 or 2, comprising the steps of:
1) respectively arranging the sampling probes 1 of the two detection units at the front end and the rear end of an exhaust port to be detected; adding standard gas through a standard gas valve port 4, and calibrating the TVOC online detector 7;
2) after the system is started, the sampling air pump 8 runs, and the sample air is collected to the filter 2 through the sampling probe 1 to be subjected to smoke dust filtration and then enters the electronic refrigerator 3 to be dehumidified;
3) the flow is controlled by a flowmeter 6 after passing through the filter 2 and the electronic refrigerator 3;
4) the treated gas passes through a needle valve to adjust a bypass, so that the gas stably enters the TVOC on-line detector 7;
5) the data acquisition and transmission instrument acquires, stores and transmits the data of the TVOC on-line detector 7, and synchronously transmits the data to the monitoring center for real-time monitoring.
Example 4
As in the working method of the TVOCs organized online monitoring system in embodiment 3, further, the working method of the TVOCs organized online monitoring system further includes a cleaning step: the cleaning state is switched to by the electromagnetic valve 5; after being filtered by the cleaner 9, the gas is injected into the TVOC on-line detector 7 to clean the PID sensor
Finally, it should be noted that the above-mentioned contents are only used for illustrating the technical solutions of the present invention, and not for limiting the protection scope of the present invention, and that the simple modifications or equivalent substitutions of the technical solutions of the present invention by those of ordinary skill in the art can be made without departing from the spirit and scope of the technical solutions of the present invention.
Claims (5)
1. The TVOCs organized online monitoring system is characterized by comprising a monitoring center and a monitoring terminal; the monitoring terminal comprises two paths of detection units which are arranged in parallel; the detection unit is sequentially communicated with a sampling probe, a filter, an electronic refrigerator, a flowmeter, a TVOC online detector and a sampling air pump; a standard gas valve port is arranged between the electronic refrigerator and the flowmeter; the TVOC on-line detector is electrically connected with a data acquisition and transmission instrument; the data acquisition and transmission instrument is in communication connection with the monitoring center; the detection unit is also provided with a pressure dividing pipeline, and the pressure dividing pipeline is a pipeline which is arranged at the inlet of the electronic refrigerator and the outlet of the TVOC on-line detector in parallel; the pressure dividing pipeline is communicated with the inlet of the electronic refrigerator through a needle valve.
2. The TVOCs organized on-line monitoring system of claim 1, wherein the two parallel detection units share one electronic refrigerator and one sampling air pump.
3. The TVOCs organized on-line monitoring system according to claim 1, wherein both sides of the electronic refrigerator are provided with condensed water collecting pipes connected with peristaltic pumps.
4. The TVOCs organized on-line monitoring system according to claim 1, wherein a washer is arranged in parallel between an inlet of the flow meter and an outlet of the TVOC on-line detector; the cleaner is connected in parallel in the detection unit pipeline through an electromagnetic valve.
5. A method of operating a TVOCs organized on-line monitoring system as described in any one of claims 1 to 4, comprising the steps of:
1) respectively arranging the sampling probes of the two detection units at the front end and the rear end of an exhaust port to be detected; adding a standard gas through a standard gas valve port, and calibrating the TVOC on-line detector;
2) after the system is started, the sampling air pump runs, the sample air is collected to the filter through the sampling probe to be subjected to smoke dust filtration, and then enters the electronic refrigerator to be subjected to dehumidification;
3) the flow is controlled by a flowmeter after passing through a filter and an electronic refrigerator;
4) the treated gas passes through a needle valve to adjust a bypass, so that the gas stably enters the TVOC on-line detector;
5) the data acquisition and transmission instrument acquires, stores and transmits data of the TVOC on-line detector, and synchronously transmits the data to the monitoring center for real-time monitoring;
the working method of the TVOCs organized on-line monitoring system further comprises the cleaning step: switching to a cleaning state through an electromagnetic valve; and after being filtered by the cleaner, the gas is injected into the TVOC on-line detector to clean the PID sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011383246.3A CN112540119A (en) | 2020-12-01 | 2020-12-01 | TVOCs organized online monitoring system and working method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011383246.3A CN112540119A (en) | 2020-12-01 | 2020-12-01 | TVOCs organized online monitoring system and working method thereof |
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| CN112540119A true CN112540119A (en) | 2021-03-23 |
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| CN202011383246.3A Pending CN112540119A (en) | 2020-12-01 | 2020-12-01 | TVOCs organized online monitoring system and working method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117054511A (en) * | 2023-10-13 | 2023-11-14 | 杭州盈创环境科技有限公司 | Non-methane total hydrocarbon detection device and method based on double detectors |
| CN117309510A (en) * | 2023-11-28 | 2023-12-29 | 北京博赛德科技有限公司 | VOC pollution source remote sampling system |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3457787A (en) * | 1965-08-17 | 1969-07-29 | Beteiligungs & Patentverw Gmbh | Method of and apparatus for the automatic observation and regeneration of devices for the sampling of waste gases |
| CN105353056A (en) * | 2015-12-11 | 2016-02-24 | 北京万维盈创科技发展有限公司 | Volatile organic compound online monitoring system |
| CN106769269A (en) * | 2017-01-23 | 2017-05-31 | 宇星科技发展(深圳)有限公司 | A kind of sampling of VOCs on-line monitorings and pretreatment system |
| CN106841536A (en) * | 2017-03-31 | 2017-06-13 | 宇星科技发展(深圳)有限公司 | A kind of VOCs detectors |
| CN206399912U (en) * | 2017-01-19 | 2017-08-11 | 常州磐诺仪器有限公司 | A kind of air V OCs on-line monitoring systems |
| CN206696248U (en) * | 2017-04-27 | 2017-12-01 | 江西洪图环保有限公司 | A kind of volatile organic matter on-Line Monitor Device |
| CN110609120A (en) * | 2019-09-04 | 2019-12-24 | 汉威科技集团股份有限公司 | Gas multi-path online monitoring system |
-
2020
- 2020-12-01 CN CN202011383246.3A patent/CN112540119A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3457787A (en) * | 1965-08-17 | 1969-07-29 | Beteiligungs & Patentverw Gmbh | Method of and apparatus for the automatic observation and regeneration of devices for the sampling of waste gases |
| CN105353056A (en) * | 2015-12-11 | 2016-02-24 | 北京万维盈创科技发展有限公司 | Volatile organic compound online monitoring system |
| CN206399912U (en) * | 2017-01-19 | 2017-08-11 | 常州磐诺仪器有限公司 | A kind of air V OCs on-line monitoring systems |
| CN106769269A (en) * | 2017-01-23 | 2017-05-31 | 宇星科技发展(深圳)有限公司 | A kind of sampling of VOCs on-line monitorings and pretreatment system |
| CN106841536A (en) * | 2017-03-31 | 2017-06-13 | 宇星科技发展(深圳)有限公司 | A kind of VOCs detectors |
| CN206696248U (en) * | 2017-04-27 | 2017-12-01 | 江西洪图环保有限公司 | A kind of volatile organic matter on-Line Monitor Device |
| CN110609120A (en) * | 2019-09-04 | 2019-12-24 | 汉威科技集团股份有限公司 | Gas multi-path online monitoring system |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117054511A (en) * | 2023-10-13 | 2023-11-14 | 杭州盈创环境科技有限公司 | Non-methane total hydrocarbon detection device and method based on double detectors |
| CN117054511B (en) * | 2023-10-13 | 2024-01-12 | 杭州盈创环境科技有限公司 | Non-methane total hydrocarbon detection device and method based on double detectors |
| CN117309510A (en) * | 2023-11-28 | 2023-12-29 | 北京博赛德科技有限公司 | VOC pollution source remote sampling system |
| CN117309510B (en) * | 2023-11-28 | 2024-03-08 | 北京博赛德科技有限公司 | VOC pollution source remote sampling system |
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