CN220207212U - Monitoring system for assisting industrial enterprise in traceability of emission of volatile organic compounds - Google Patents

Abstract

A monitoring system that assists the traceability of volatile organic compound emissions from industrial enterprises, and belongs to the field of atmospheric environment monitoring and governance. The system uses a fixed source exhaust gas sampling module and a sensitive point ambient air sampling module to simultaneously collect organic waste gas from each pollution source and sensitive points. Through cache settings, it monitors the concentration of volatile organic compounds in each emission source and sensitive points step by step. Assist in identifying possible environmental risks in the production process of industrial enterprises. This system has a simple structure, is convenient to use, and is easy to maintain. It can quickly help industrial enterprises and environmental management departments to effectively and automatically identify the emission sources of volatile organic compounds, greatly improving the efficiency of environmental management and reducing the cost of enterprises in the process of using organic raw materials. Possible security risks of leakage.

Description

A monitoring system to assist in traceability of volatile organic compound emissions from industrial enterprises

Technical field

The utility model belongs to the field of atmospheric environment monitoring and management, and particularly relates to a monitoring system that assists the traceability of volatile organic matter emissions from industrial enterprises.

Background technique

Volatile Organic Compounds (VOCs), as precursors for the generation of organic aerosols and ozone, have become an important source of pollution that affects the improvement of ambient air quality in my country. At the same time, this type of substance has complex components and usually has a strong pungent odor. It is the main source of various environmental petition cases. A large number of studies have shown that my country's current VOCs pollution mainly comes from the industrial field. However, the production process of industrial enterprises is complex and involves many links in the use of organic raw materials. The synthetic production of any product and the storage and transfer of raw materials may produce VOCs emissions. Especially for fine chemicals, petrochemicals and other industries, there are even tens of thousands of nodes involved in VOCs emissions. In this case, problems such as abnormal terminal treatment facilities, inadequate supervision, or malfunction of sewage facilities may cause excessive emissions of VOCs, which will pose risks to the areas surrounding the industrial enterprises, cause sensory irritation to surrounding residents, and pose a health hazard harm, but also profoundly affects the improvement of regional ambient air. However, due to poor visibility of VOCs emissions, strong correlation between emission sources, fast pollution transmission speed, and changeable paths, it is difficult to detect high VOCs emission points in time. High-intensity VOCs emissions monitored at sensitive points cannot quickly correspond to various pollution sources, resulting in a relative lag in the improvement of ambient air. Therefore, the development of a monitoring system that assists the traceability of volatile organic compound emissions in industrial enterprises and accurately identifies the sources of volatile organic compound pollution at sensitive points based on monitoring data is of great significance to the environmental management of industrial enterprises.

Contents of the invention

In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a monitoring system that assists the traceability of volatile organic matter emissions in industrial enterprises.

The technical solution adopted by the utility model is: a monitoring system that assists the traceability of volatile organic compounds emissions from industrial enterprises. Its technical key points are that it includes a fixed source exhaust gas sampling module and a GC-MS analyzer. The fixed source exhaust gas sampling module includes A filter cartridge that accepts volatile organic waste gas from a fixed pollution source. The filter cartridge is connected to a cache gas tank through a pipeline, and the cache gas tank is connected to an air pump connected to the atmospheric environment through a pipeline; at the inlet end of the cache gas tank The pipeline and the outlet end pipeline are respectively provided with a first set of gas valve switches for controlling whether the cache gas tank is incoming air; the fixed source exhaust gas detection module includes a carrier gas bottle, and the carrier gas bottle communicates with the cache gas tank through the output pipeline The inlet end connection is used to bring out the gas in the cache gas tank. The connection pipeline between the carrier gas bottle and the cache gas tank is equipped with a pressure stabilizing valve and a gas flow meter. The output port of the cache gas tank is connected to the GC-MS through the pipeline. The input port connection of the analyzer GC-MS is used to allow the gas output from the buffer gas tank to enter the GC-MS analyzer.

The above solution also includes a sensitive point ambient air sampling module and a sensitive point ambient air detection module. The sensitive point ambient air sampling module includes another filter cartridge connected to the sensitive point ambient air, and another filter cartridge. The cylinder is connected to the input end of the sampling tube through a pipeline, and the output end of the sampling tube is connected to another air pump connected to the atmospheric environment through a pipeline. The pipelines at the inlet end and outlet end of the sampling tube are respectively provided with a device for controlling whether the sampling tube is For the second set of air valve switches for air inlet, a three-way valve is provided on the connecting pipeline between the air valve switch at the entrance of the sampling tube and the sampling tube and is connected to the blowing branch through the three-way valve. The three-way valve is connected through the pipeline. The high-purity air cylinder of the blowing branch is equipped with an air valve switch on the connecting pipeline between the high-purity air cylinder and the three-way valve to control whether the high-purity air enters the sampling pipe; the sensitive point ambient air detection module includes sensitive points The output pipeline of the sensitive point carrier gas bottle is connected to the inlet of the sampling tube through the pressure stabilizing valve, gas flow meter and pipeline heater. The outlet of the sampling tube is connected to the GC-MS analyzer through the pipeline. The input port of the MS is connected, and a third set of gas valve switches for controlling whether the gas in the sampling tube enters the GC-MS is also provided at the inlet and outlet of the sampling tube.

The above solution also includes multiple other fixed source exhaust gas sampling modules. The pipelines connected to the air pump output ports in each other exhaust gas sampling module are connected to each other through three-way valves and then connected to the atmosphere through the pipelines.

In the above solution, the output pipeline of the fixed source exhaust gas detection module is connected to the output port of the buffer gas tank in each other fixed source exhaust gas detection module through a plurality of three-way valves.

In the above solution, the sampling tube is filled with an adsorbent used to enrich organic matter at sensitive points.

In the above solution, a fan is installed outside the sampling tube for cooling the sampling tube after thermal desorption.

The beneficial effects of the utility model are: the monitoring system for assisting the traceability of volatile organic matter emissions from industrial enterprises uses a fixed source exhaust gas sampling module and a sensitive point ambient air sampling module to synchronously collect organic waste gas from various pollution sources and sensitive points, and sets it through the cache , step by step monitoring of the component concentrations of volatile organic compounds at each emission source and sensitive points, to assist in identifying possible environmental risks in the production process of industrial enterprises. This system has a simple structure, is convenient to use, and is easy to maintain. It can quickly help industrial enterprises and environmental management departments to effectively and automatically identify the emission sources of volatile organic compounds, greatly improving the efficiency of environmental management and reducing the cost of enterprises in the process of using organic raw materials. Possible security risks of leakage.

Description of drawings

In order to explain the embodiments of the present invention or the technical solutions in the prior art more clearly, the drawings required in the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only for the present invention. For some embodiments, those of ordinary skill in the art can obtain other drawings based on these drawings without exerting creative efforts.

Figure 1 is a schematic structural diagram of a monitoring system for assisting the traceability of volatile organic compound emissions in industrial enterprises according to an embodiment of the present invention;

The serial numbers in the figure are as follows: 1-1 first filter cartridge, 1-2 second filter cartridge, 1-3 third filter cartridge, 1-4 fourth filter cartridge, 2-1 first buffer gas tank, 2-2 Second buffer gas tank, 2-3 third buffer gas tank, 2-4 sampling tube, 3-1 first air pump, 3-2 second air pump, 3-3 third air pump, 3-4 fourth air pump, 4 -1 first pressure gauge, 4-2 second pressure gauge, 4-3 third pressure gauge, 4-4 fourth pressure gauge, 5-1 carrier gas cylinder, 5-2 high purity air cylinder, 6 stabilized pressure Valve, 7 gas flow meter, 8 pipeline heater, 9 fan, 10-1 first air valve switch, 10-2 second air valve switch, 10-3 third air valve switch, 10-4 fourth air valve Switch, 10-5 fifth air valve switch, 10-6 sixth air valve switch, 10-7 seventh air valve switch, 10-8 eighth air valve switch, 10-9 ninth air valve switch, 10-10 The tenth air valve switch, 10-11 the eleventh air valve switch, 10-12 the twelfth air valve switch, 10-13 the thirteenth air valve switch, 10-14 the fourteenth air valve switch, 10-15 Fifteen air valve switch, 10-16 sixteenth air valve switch, 10-17 seventeenth air valve switch, 11-1 first three-way valve, 11-2 second three-way valve, 11-3 third third One-way valve, 11-4 fourth three-way valve, 11-5 fifth three-way valve, 11-6 sixth three-way valve, 11-7 seventh three-way valve, 11-8 eighth three-way valve, 11- 9. Ninth three-way valve, 11-10. Thirteenth-way valve.

Detailed ways

In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the present utility model will be further described in detail below with reference to the accompanying drawing 1 and the specific embodiments.

The monitoring system for assisting the traceability of volatile organic matter emissions from industrial enterprises in this embodiment includes a fixed source exhaust gas sampling module, a fixed source exhaust gas detection module, a sensitive point ambient air sampling module, a sensitive point ambient air detection module and a GC-MS analysis. Instruments and other parts.

In this embodiment, the fixed source waste gas sampling module includes a first filter cartridge 1-1. The organic waste gas discharged from the fixed pollution source 1 enters the first filter cartridge 1-1. The first filter cartridge 1-1 is connected to the first buffer through a connecting pipeline. The gas tank 2-1 is connected, and a third gas valve switch 10-3 is provided on the connecting pipeline close to the air inlet of the first cache gas tank 2-1. The first buffer gas tank 2-1 is connected to the first gas pump 3-1 through a pipeline. A fourth gas valve switch 10-4 is provided on the pipeline near the outlet end of the first buffer gas tank 2-1, and the organic waste gas flows through the third gas valve switch 10-4. The first air pump 3-1 and the first pressure gauge 4-1 are then discharged to the atmospheric environment.

This embodiment uses the same connection method for sampling, and can sample other fixed pollution sources in parallel and synchronously. For example, the organic waste gas discharged from the fixed pollution source 2 enters the second filter cartridge 1-2. The second filter cartridge 1-2 is connected to the second buffer gas tank 2-2 through a connecting pipeline. When it is close to the second buffer gas tank 2-2 A seventh air valve switch 10-7 is provided on the connecting pipeline of the air inlet for controlling the opening and closing of the pipeline. The second buffer gas tank 2-2 is connected to the second gas pump 3-2 through a pipeline. An eighth gas valve switch 10-8 is provided on the pipeline near the outlet end of the second buffer gas tank 2-2, and the organic waste gas flows through the second gas valve switch 10-8. The second air pump 3-2 and the second pressure gauge 4-2 are then discharged to the atmospheric environment. In this embodiment, the organic waste gas discharged from the fixed pollution source 3 enters the third filter cartridge 1-3. The third filter cartridge 1-3 is connected to the third cache gas tank 2-3 through a connecting pipeline, and is close to the third cache gas tank 2. An eleventh air valve switch 10-11 for controlling the opening and closing of the pipeline is provided on the connecting pipeline of the -3 air inlet. The third buffer gas tank 2-3 is connected to the third gas pump 3-3 through a pipeline. A twelfth gas valve switch 10-12 is provided on the pipeline near the outlet end of the third buffer gas tank 2-3, through which organic waste gas flows. The third air pump 3-3 and the third pressure gauge 4-3 are then discharged to the atmosphere. This embodiment only uses the pipeline structure of three fixed pollution sources for description. The user can also add other fixed pollution sources as needed. The setting method is basically the same as above.

In this embodiment, a special gas path is also set up for the treatment of organic waste gas at sensitive points. Sensitive points usually refer to spatial locations that are likely to cause sensory stimulation to the human body or have high standards for ambient air quality, including corporate office areas, employee dormitories, canteens, etc. The organic waste gas output from the sensitive point enters the fourth filter cartridge 1-4. The fourth filter cartridge 1-4 is connected to the sampling pipe 2-4 through the connecting pipe. The sampling pipe 2-4 is connected to the fourth air pump 3 through the pipe. -4 are connected, a fifteenth air valve switch 10-15 and a seventh three-way valve 11-7 are set on the pipeline close to the outlet end of the fourth filter cartridge 1-4, and the c port of the seventh three-way valve 11-7 passes through the pipe. The pipeline is connected to the high-purity air cylinder 5-2, and a seventeenth air valve switch 10-17 is also provided on the connecting pipeline between the seventh three-way valve 11-7 and the high-purity air cylinder 5-2. The organic waste gas flows through the fourth air pump 3-4 and the fourth pressure gauge 4-4 and then is discharged to the atmospheric environment.

In this embodiment, the output ends of the first air pump 3-1, the second air pump 3-2, the third air pump 3-3 and the fourth air pump 3-4 are connected to each other through pipelines to provide a channel for the organic waste gas to be discharged to the atmospheric environment. The specific structure is: the output pipeline of the first air pump 3-1 is also provided with an eighth three-way valve 11-8, the output pipeline of the second air pump 3-2 is provided with a ninth three-way valve 11-9, and the third air pump A thirteenth-way valve 11-10 is provided on the output pipeline of 3-3. The output pipeline of the first air pump 3-1 is connected to the a port of the eighth three-way valve 11-8, the c port of the eighth three-way valve 11-8 is connected to the atmospheric environment, and the b port of the eighth three-way valve 11-8 It is connected to the c port of the ninth three-way valve 11-9 through a pipeline; the b port of the ninth three-way valve 11-9 is connected to the c port of the thirteenth three-way valve 11-10 through a pipeline. The b port of 11-10 is connected to the output pipeline of the fourth air pump 3-4 through a pipeline. Through the above structure, the organic waste gas from various pollution sources and sensitive points can be collected simultaneously, and different pollution sources can enter their respective buffer gas tanks, creating conditions for subsequent step-by-step monitoring of volatile organic compounds at each emission source and sensitive points.

In the exhaust gas detection module of this embodiment, the carrier gas bottle 5-1 is connected to the first cache gas tank 2-1 through a pipeline, and a first three-way valve 11-1 is provided on the above pipeline. The pipeline connecting the a port of -1 to the carrier gas bottle 5-1 is successively provided with a pressure stabilizing valve 6 and a gas flow meter 7. The c port of the first three-way valve 11-1 is connected to the first cache gas tank through the pipeline. 2-1 connection, a first air valve switch 10-1 is provided near the input port of the first buffer gas tank 2-1, the first gas valve switch 10-1 is connected to the buffer gas tank 2-1, and the first three-way The b port of the valve 11-1 is connected to the sampling pipe 2-4 through the pipeline heater 8, and a second three-way valve is sequentially provided on the connecting pipeline between the first three-way valve 11-1 and the pipeline heater 8. 11-2 and the fourth three-way valve 11-4, a thirteenth air valve switch 10-13 is provided near the inlet of the sampling pipe 2-4, and a fourteenth air valve switch 10-13 is provided near the outlet of the sampling pipe 2-4. The air valve switch 10-14 and the fourteenth air valve switch 10-14 are connected to the b port of the sixth three-way valve 11-6 through a pipeline; Gas valve switch 10-2, the first buffer gas tank 2-1 is connected to the GC-MS analyzer through a pipeline, and the pipeline between the first buffer gas tank 2-1 and the GC-MS passes through the third tee The a port and c port of the valve 11-3 are connected to the a port of the fifth three-way valve 11-5, and are connected to the a port of the sixth three-way valve 11-6 through the c port of the fifth three-way valve 11-5. The c port of the sixth three-way valve 11-6 is connected to the input end of the GC-MS analyzer.

This embodiment can also realize step-by-step detection of organic waste gas from multiple pollution sources. For example, in this embodiment, the c port of the second three-way valve 11-2 is connected to the input port of the second cache gas tank 2-2 through a pipeline. A fifth gas valve switch 10-5 is provided on the pipeline close to the input port of the buffer gas tank 2-2, and the output end of the second buffer gas tank 2-2 is connected to the b port of the third three-way valve 11-3 through the pipeline. , used to transport the gas in the carrier gas bottle 5-1 to the second buffer gas tank 2 after passing through the pressure stabilizing valve 6, the gas flow meter 7, the first three-way valve 11-1 and the second three-way valve 11-2. Within -2. The c port of the fourth three-way valve 11-4 is connected to the input port of the third buffer gas tank 2-3 through a pipeline, and a ninth gas valve switch is provided on the pipeline close to the input port of the third buffer gas tank 2-3. 10-9. The output end of the third buffer gas tank 2-3 is connected to the b port of the fifth port valve 11-5 through a pipeline, which is used to pass the gas in the carrier gas bottle 5-1 through the pressure stabilizing valve 6. The flow meter 7, the first three-way valve 11-1, the second three-way valve 11-2 and the fourth three-way valve 11-4 are then input into the third buffer gas tank 2-3.

When detecting organic waste gas at sensitive points, the gas in the carrier gas bottle 5-1 enters the sampling pipe 2-4 through the pressure stabilizing valve 6, the gas flow meter 7, the pipeline heater 8, and the thirteenth gas valve switch 10-13. Pipe 2-4 then enters the gas chromatography mass spectrometry analyzer (GC-MS) through the fourteenth gas valve switch 10-14 and the c port of the sixth three-way valve 11-6 for concentration analysis of volatile organic compounds. At the same time, the high-purity air 5-2 enters the sampling pipe 2-4 through the seventeenth air valve switch 10-7 and the seventh three-way valve 11-7 to purge the sampling pipe 2-4.

In the exhaust gas detection module of this embodiment, the sampling tubes 2-4 are filled with adsorbents for enriching organic matter at sensitive points.

In the exhaust gas detection module of this embodiment, the sampling tubes 2-4 are equipped with an external fan 9, which is used to cool the sampling tubes after thermal desorption.

In the GC-MS of the GC-MS analyzer of this embodiment, the concentration of volatile organic compounds at pollution sources and sensitive points monitored by the GC-MS analyzer is processed based on the computer, and the maximum value of the data is normalized. Obtain the volume percentage of each volatile organic component of each pollution source and sensitive point; use Pearson correlation analysis to obtain the correlation between the sensitive point and the emissions of each pollution source; combine the PMF model to calculate the contribution rate of each pollution source to the sensitive point. The above methods are all conventional component concentration treatment methods in this field.

The working process of the volatile organic matter emission system of industrial enterprises in this embodiment is as follows:

The exhaust gas sampling module synchronously collects organic waste gas from pollution sources and sensitive points. The organic waste gas from the pollution source 1 first removes particulate matter in the exhaust gas through the filter cartridge 1-1 under the action of the air pump 3-1, and flows into the buffer gas tank 2-1. There are third and fourth air valve switches 10-3 and 10-4 on both sides of 2-1. After the gas is filled with the buffer gas tank 2-1, it enters the air pump 3-1, is connected to the pressure gauge 4-1, and is then discharged to Atmospheric environment; when the pressure gauge 4-1 reaches the set value, the third air valve 10-3 and the fourth air valve 10-4 are closed, the air pump 3-1 stops operating, and the pollution source waste gas 1 is sealed in the buffer gas tank 2-1 Inside. According to the same connection method, simultaneous collection of organic waste gas from multiple pollution sources can be achieved. The concentration of organic waste gas at the sensitive point is much lower than that of the pollution source. When sampling, the ambient air at the sensitive point first removes particulate matter in the waste gas through the filter cartridge 1-4 under the action of the fourth air pump 3-4, and flows into the sampling Pipe 2-4, the sampling pipe 2-4 is filled with adsorbent to enrich the organic waste gas at sensitive points. There are fifteenth air valve switch 10-15 and sixteenth air valve arranged on both sides of the sampling pipe 2-4. Switch 10-16, after the gas fills the sampling tube 2-4 and completes the enrichment of organic matter, it enters the fourth air pump 3-4, is connected to the fourth pressure gauge 4-4, and is then discharged to the atmospheric environment.

The waste gas detection module sends the collected organic waste gas from pollution sources and sensitive points to the GC-MS analyzer step by step. The specific implementation process is: open the carrier gas pressure stabilizing valve 6, put the carrier gas bottle 5-1 into The carrier gas passes through the pressure stabilizing valve 6, the gas flow meter 7, the first three-way valve 11-1, and the first gas valve switch 10-1 in sequence, and takes out the pollution source waste gas sealed in the cache gas tank 2-1. After the second gas valve switch 10-2 and several third three-way valves 11-3, fifth three-way valves 11-5, and sixth three-way valves 11-6, they are sent to the GC-MS analyzer detection. After the detection cycle is completed, close the first gas valve switch 10-1 and the second gas valve switch 10-2, open the fifth gas valve switch 10-5 and the sixth gas valve switch 10-6, and the carrier gas bottle 5-1 will The waste gas from the second pollution source is sent to the GC-MS analyzer for detection. According to the same method, step-by-step detection of organic waste gas from multiple pollution sources can be achieved. When detecting organic waste gas at sensitive points, the carrier gas bottle 5-1 sequentially passes through the pressure stabilizing valve 6, the gas flow meter 7, the pipeline heater 8, and the thirteenth gas valve switch 10-13 and enters the sampling pipe 2-4. The carrier gas is heated in the pipeline heater 8 so that the organic matter enriched in the sampling tube is completely blown out of the adsorption medium. After passing through the fourteenth gas valve switch 10-14 and the sixth three-way valve 11-6, Enter the GC-MS detection and analysis. After the detection cycle is completed, close the thirteenth gas valve switch 10-13 and the fourteenth gas valve switch 10-14, open the seventeenth gas valve switch 10-17 and the sixteenth gas valve switch 10-16, so that the high purity The high-purity air in the air cylinder 5-2 enters the sampling pipe 2-4 to purge the adsorbent and is discharged into the atmospheric environment. At the same time, the fan 9 is used to cool the sampling pipe 2-4. After each gas is detected by a GC-MS analyzer, the VOCs components and concentration information obtained are handed over to the computer for traceability analysis, including pollution sources and sensitive point volatilities monitored by the GC-MS analyzer. The concentration of organic matter components is processed, and the volume percentage of each volatile organic matter component at each pollution source and sensitive point is obtained through data normalization processing; Pearson correlation analysis is used to obtain the correlation between the sensitive point and the emission of each pollution source. ; Use the PMF model to calculate the contribution rate of each pollution source to sensitive points.

The above are only specific implementations of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person familiar with the technical field can easily think of changes or modifications within the technical scope disclosed by the present utility model. Replacements shall be covered by the protection scope of the present utility model. Therefore, the protection scope of the present utility model should be subject to the protection scope of the claims.

Claims (6)

1. A monitoring system that assists the traceability of volatile organic compounds emissions from industrial enterprises, characterized by comprising a fixed source exhaust gas sampling module, a fixed source exhaust gas detection module and a GC/MS analyzer. The fixed source exhaust gas sampling module includes a fixed source exhaust gas sampling module that accepts A filter cartridge for volatile organic waste gas that fixes pollution sources. The filter cartridge is connected to a buffer gas tank through a pipeline, and the buffer gas tank is connected to an air pump connected to the atmospheric environment through a pipeline; at the inlet end of the buffer gas tank is a pipeline A first set of gas valve switches are respectively provided on the pipelines at the and outlet ends for controlling whether the cache gas tank is incoming air; the fixed source exhaust gas detection module includes a carrier gas bottle, and the carrier gas bottle passes through the output pipeline and the inlet of the cache gas tank The end connection is used to bring out the gas in the buffer gas tank. The connection pipeline between the carrier gas bottle and the buffer gas tank is equipped with a pressure stabilizing valve and a gas flow meter. The output port of the buffer gas tank is connected to the GC-MS analyzer through the pipeline. The input port connection of the GC-MS is used to allow the gas output from the buffer gas tank to enter the GC-MS analyzer. 2. The monitoring system for assisting industrial enterprise volatile organic compound emission traceability as claimed in claim 1, characterized in that it also includes a sensitive point ambient air sampling module and a sensitive point ambient air detection module, and the sensitive point environment The air sampling module includes another filter cartridge connected to the ambient air at the sensitive point. The other filter cartridge is connected to the input end of the sampling tube through a pipeline. The output end of the sampling tube is connected to another air pump connected to the atmospheric environment through the pipeline. connection, a second set of air valve switches for controlling whether the sampling tube is inlet is provided on the pipelines at the inlet end and outlet end of the sampling tube respectively, and is provided on the connecting pipeline between the air valve switch at the entrance of the sampling tube and the sampling tube. There is a three-way valve and is connected to the blowing branch through the three-way valve. The three-way valve is connected to the high-purity air cylinder of the blowing branch through a pipeline. There is a control height on the connecting pipeline between the high-purity air cylinder and the three-way valve. Whether pure air enters the air valve switch of the sampling pipe; the sensitive point ambient air detection module includes a sensitive point carrier gas bottle, and the output pipeline of the sensitive point carrier gas bottle passes through the pressure regulator valve, gas flow meter and pipeline heater. It is connected to the inlet of the sampling tube, and the outlet of the sampling tube is connected to the input port of the GC-MS analyzer through the pipeline. The inlet and outlet of the sampling tube are also provided with devices for controlling whether the gas in the sampling tube enters the GC-MS analyzer. The third group of gas valve switches for GC-MS. 3. The monitoring system for traceability of volatile organic compounds emissions from auxiliary industrial enterprises as claimed in claim 1 or 2, characterized in that it also includes a plurality of other fixed source exhaust gas sampling modules, and each of the other exhaust gas sampling modules is connected to the air pump output port. The pipelines are connected to each other through three-way valves and then connected to the atmosphere through the pipelines. 4. The monitoring system for traceability of volatile organic matter emissions from auxiliary industrial enterprises as claimed in claim 3, characterized in that the output pipeline of the fixed source exhaust gas detection module communicates with each other fixed source exhaust gas detection module through a plurality of three-way valves. Connect the output port of the buffer gas tank in the module. 5. The monitoring system for traceability of volatile organic matter emissions from auxiliary industrial enterprises as claimed in claim 4, characterized in that the sampling tube is filled with an adsorbent for enriching organic matter at sensitive points. 6. The monitoring system for assisting the traceability of volatile organic compound emissions from industrial enterprises as claimed in claim 5, characterized in that a fan is installed outside the sampling tube for cooling the sampling tube after thermal desorption.