CN111505085A - Sulfur dioxide and carbon dioxide content contrastive analyzer for ship tail gas - Google Patents
Sulfur dioxide and carbon dioxide content contrastive analyzer for ship tail gas Download PDFInfo
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- CN111505085A CN111505085A CN202010357199.9A CN202010357199A CN111505085A CN 111505085 A CN111505085 A CN 111505085A CN 202010357199 A CN202010357199 A CN 202010357199A CN 111505085 A CN111505085 A CN 111505085A
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- 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
- G01N27/26—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating electrochemical variables; by using electrolysis or electrophoresis
- G01N27/403—Cells and electrode assemblies
- G01N27/406—Cells and probes with solid electrolytes
- G01N27/407—Cells and probes with solid electrolytes for investigating or analysing gases
Abstract
The invention is suitable for the technical field of ship tail gas detection, in particular to a ship tail gas sulfur dioxide and carbon dioxide content comparison analyzer, which comprises a ship tail gas pretreatment module, a gas detection module and a data processing and analyzing module; the ship tail gas pretreatment module comprises tail gas pretreatment equipment, the temperature and the humidity of the ship tail gas are adjusted by the tail gas pretreatment equipment, and the ship tail gas is continuously, stably and uniformly input into the gas detection module after reaching a detection state; the gas detection module carries out SO on the ship tail gas which is uniformly input2And CO2Detecting, and transmitting detection information to the data processing and analyzing module; the data processing and analyzing module collects and displays the detection information and calculates the sulfur content of the fuel oil; displaying and memorizing and storing; the method can dynamically monitor the sulfur content of the ship tail gas in real time, reduce the emission of atmospheric pollutants of the ship, ensure the effective implementation of the global sulfur limit order and promote the development of green shipping.
Description
Technical Field
The invention belongs to the technical field of ship tail gas detection, and particularly relates to a comparative analyzer for contents of sulfur dioxide and carbon dioxide in ship tail gas.
Background
At present, the emission standard of ship tail gas is not established in China, and the control of ship SOX and particulate matters by the policy of a domestic ship emission control area is realized by controlling the sulfur content in ship fuel oil.
The existing tail gas remote measuring device is greatly influenced by weather and wind direction, randomness is high, time difference exists in the process from finding that an overproof suspicion exists after a ship is underway to a process that law enforcement personnel climb a wheel for sampling and submitting for inspection in the practical application process, and a shipside can utilize the time difference to change used high-sulfur oil into low-sulfur oil.
Disclosure of Invention
The invention aims to provide a comparative analyzer for sulfur dioxide and carbon dioxide content in ship tail gas, which aims to solve the problems that the conventional tail gas remote measuring device is greatly influenced by weather and wind direction, has high randomness, has time difference in the process from the discovery of an overproof suspicion after a ship is underway to the boarding, sampling and inspection of law enforcement personnel, and can change used high-sulfur oil into low-sulfur oil by using the time difference; in order to realize the purpose, the following technical scheme is specifically provided:
a ship tail gas sulfur dioxide and carbon dioxide content comparison analyzer comprises a ship tail gas pretreatment module, a gas detection module and a data processing analysis module; wherein the content of the first and second substances,
the ship tail gas pretreatment module comprises tail gas pretreatment equipment, the temperature and the humidity of the ship tail gas are adjusted by the tail gas pretreatment equipment, and the ship tail gas is continuously, stably and uniformly input into the gas detection module after reaching a detection state;
the gas detection module carries out SO on the ship tail gas which is uniformly input2And CO2Detecting, and transmitting detection information to the data processing and analyzing module;
the data processing and analyzing module comprises a host and an inspection data analyzer; the host machine collects and displays the detection information, gives out sound and light alarm to the ship tail gas exceeding a set threshold value, transmits the detection information to the inspection data analyzer, and the inspection data analyzer processes the detection information to obtain the sulfur content of the fuel oil, displays and stores the sulfur content;
furthermore, after the temperature and humidity of the ship tail gas are adjusted by using tail gas pretreatment equipment on the ship tail gas pretreatment module, SO is carried out on the ship tail gas by using the gas detection module2And CO2Detecting, transmitting to a data processing and analyzing module, and calculating fuel content by using the data processing and analyzing moduleThe sulfur content can be effectively and dynamically monitored in real time, so that a shipside can be prompted to practically adopt various sulfur-limiting measures, the emission of atmospheric pollutants of the ship is reduced, the effective implementation of a global sulfur-limiting order is guaranteed, and the development of green shipping is promoted; simultaneously, the gas detection module carries out SO on the ship tail gas2And CO2When the detection is carried out, a sound-light alarm is given out after numerical value abnormality occurs and the ship tail gas exceeds a set threshold value, so that a crew can take measures conveniently; and the data processing and analyzing module displays and memorizes the data, so that the maritime law enforcement officers can conveniently check and supervise the data.
Further scheme: the ship tail gas pretreatment module comprises a tail gas conveying structure communicated with a tail gas pretreatment device, and the tail gas conveying structure is used for conveying tail gas inside a ship chimney communicated with the tail gas pretreatment device to the tail gas pretreatment device so as to adjust the temperature and humidity of the ship tail gas.
Preferably, the tail gas conveying structure comprises a suction device for realizing the flowing conveying of the tail gas, and the tail gas conveying of the tail gas conveying structure is completed by using the suction device.
A further scheme is as follows: the tail gas pretreatment equipment inputs ship tail gas reaching a detection state into the gas detection module through a gas conveying pipe to be detected.
A further scheme is as follows: the gas detection module comprises a gas detection module and a gas detection module, wherein the gas detection module is internally provided with a gas detection module for SO2And CO2The detection probe of the electrochemical element and the audible and visual alarm are matched with the detection probe for detection, and the ship tail gas exceeding a set threshold value gives out audible and visual alarm.
Preferably, the detection probe contains SO2Detection probe and CO2Detection Probe, SO2Detection probe and/or CO2The detection probe is connected with the acousto-optic alarm.
Preferably, the audible and visual alarm comprises a signal connected to the SO2Detecting SO on a probe2The detection probe is an audible and visual alarm and is connected with the CO2Detecting CO on a probe2And a sound-light alarm for the detection probe.
A further scheme is as follows: the host is connected with the gas detection module and is provided with a data display window for displaying the detection data of the gas detection module which is collected and processed.
A further scheme is as follows: the data display window comprises a host computer CO2Detecting data display window and host SO2Detecting the data display window and using the host CO2Detecting data display window and host SO2The detection data display window is used for displaying the collected detection information.
The invention relates to a sulfur dioxide and carbon dioxide content comparison analyzer for ship tail gas, which comprises a ship tail gas pretreatment module, a gas detection module and a data processing analysis module; the ship tail gas pretreatment module comprises tail gas pretreatment equipment, the temperature and the humidity of the ship tail gas are adjusted by the tail gas pretreatment equipment, and the ship tail gas is continuously, stably and uniformly input into the gas detection module after reaching a detection state; the gas detection module carries out SO on the ship tail gas which is uniformly input2And CO2Detecting, and transmitting detection information to the data processing and analyzing module; the data processing and analyzing module comprises a host and an inspection data analyzer; the host machine collects and displays the detection information, gives out sound and light alarm to the ship tail gas exceeding a set threshold value, transmits the detection information to the inspection data analyzer, and the inspection data analyzer processes the detection information to obtain the sulfur content of the fuel oil, displays and stores the sulfur content; after the temperature and humidity of the ship tail gas are adjusted by utilizing tail gas pretreatment equipment on the ship tail gas pretreatment module, SO is carried out on the ship tail gas by utilizing the gas detection module2And CO2The sulfur content of the fuel oil is calculated by utilizing the data processing and analyzing module, the sulfur content of the tail gas of the ship can be effectively and dynamically monitored in real time, so that a shipside can be prompted to practically take various sulfur limiting measures, the emission of atmospheric pollutants of the ship is reduced, the effective implementation of a global sulfur limiting order is guaranteed, and the development of green shipping is promoted; simultaneously, the gas detection module carries out SO on the ship tail gas2And CO2When the detection is carried out, the sound and light alarm is given out after numerical value abnormity occurs and the ship tail gas exceeds a set threshold value, so that a crew can conveniently take a note ofTaking measures; and the data processing and analyzing module displays and memorizes the data, so that the maritime law enforcement officers can conveniently check and supervise the data.
Drawings
Fig. 1 is a schematic structural diagram of a comparative analyzer for sulfur dioxide and carbon dioxide content in marine exhaust gas according to the present invention.
In the figure: 1, a ship body; 3-a ship chimney; 4-a ship tail gas outlet; 5-a tail gas collecting pipe; 6, emergency quick closing valve; 7-a getter pump; 8-tail gas conveying pipe; 9-tail gas pretreatment equipment; 10-a gas conveying pipe to be detected; 11-SO2Detecting a probe; 12-SO2A detection electrochemical element; 13-SO2The detection probe is provided with an audible and visual alarm transmission line; 14-SO2A sound-light alarm of the detection probe; 15-SO2Detecting a probe exhaust gas outlet; 16-CO2Detecting a probe; 17-CO2A detection electrochemical element; 18-CO2The detection probe is provided with an audible and visual alarm transmission line; 19-CO2A sound-light alarm of the detection probe; 20-CO2Detecting a probe exhaust gas outlet; 21-SO2A detection data transmission line; 22-CO2A detection data transmission line; 23-wire inlet; 24-a host; 25-host CO2Detecting a data display window; 26-host SO2Detecting a data display window; 27-host outlet; 28-integrated data transmission line; 29-detecting a data analyzer inlet; 30-inspection data analyzer; 31-Analyzer SO2Detecting a data display window; 32-Analyzer CO2Detecting a data display window; 33-sulfur-carbon ratio display window of analyzer; 34-analyzer operating panel; 35-Ship's bridge.
Detailed Description
The invention aims to provide a comparative analyzer for sulfur dioxide and carbon dioxide content in ship tail gas, which aims to solve the problems that the conventional tail gas remote measuring device is greatly influenced by weather and wind direction, has high randomness, has time difference in the process from the discovery of an overproof suspicion after a ship is underway to the boarding, sampling and inspection of law enforcement personnel, and can change used high-sulfur oil into low-sulfur oil by using the time difference; in order to realize the purpose, the following technical scheme is specifically provided:
in embodiments of the invention, e.g.As shown in fig. 1, a comparative analyzer for sulfur dioxide and carbon dioxide content in marine exhaust comprises a marine exhaust pretreatment module, a gas detection module and a data processing and analyzing module; the ship tail gas pretreatment module comprises tail gas pretreatment equipment 9, the temperature and the humidity of the ship tail gas are adjusted by the tail gas pretreatment equipment 9, and the ship tail gas is continuously, stably and uniformly input into the gas detection module after reaching a detection state; the gas detection module carries out SO on the ship tail gas which is uniformly input2And CO2Detecting, and transmitting detection information to the data processing and analyzing module;
the data processing and analyzing module comprises a host 24 and an inspection data analyzer 30, wherein the host 24 collects and displays detection information, gives out sound-light alarm to ship tail gas exceeding a set threshold value, transmits the detection information to the inspection data analyzer 30, the inspection data analyzer 30 processes the detection information, calculates a sulfur-carbon ratio value, and calculates the sulfur content of the fuel oil by utilizing the relationship between the sulfur content of the fuel oil and the sulfur-carbon ratio of the tail gas; displaying and storing;
the method is characterized in that the numerical value of the sulfur-carbon ratio is calculated, and the relationship between the sulfur content of the fuel and the sulfur-carbon ratio of the tail gas is utilized, SO that the theoretical basis for calculating the sulfur content of the fuel according to the sulfur-carbon ratio is mostly from exhaust gas cleaning system guide 2009 (MEPC.184(59)) issued by the International Maritime Organization (IMO) Marine environmental Committee (MEPC)2And CO2See table 1 for the relationship between the ratios of (a) to (b).
Table 1 relationship of fuel sulfur content to ratio of SO2 and CO2 in exhaust gas:
| fuel oil sulfur content/(% m/m) | SO in tail gas2(ppm)/CO2(％v/v) |
| 4.50 | 195.0 |
| 3.50 | 151.7 |
| 1.50 | 65.0 |
| 1.00 | 43.3 |
| 0.50 | 21.7 |
| 0.10 | 4.3 |
In the embodiment of the invention, after the temperature and humidity of the ship tail gas are adjusted by using the tail gas pretreatment equipment 9 on the ship tail gas pretreatment module, the SO is performed on the ship tail gas by using the gas detection module2And CO2The sulfur content of the fuel oil is calculated by utilizing the data processing and analyzing module, the sulfur content of the tail gas of the ship can be effectively and dynamically monitored in real time, so that a shipside can be prompted to practically take various sulfur limiting measures, the emission of atmospheric pollutants of the ship is reduced, the effective implementation of a global sulfur limiting order is guaranteed, and the development of green shipping is promoted; simultaneously, the gas detection module carries out SO on the ship tail gas2And CO2When the detection is carried out, a sound-light alarm is given out after numerical value abnormality occurs and the ship tail gas exceeds a set threshold value, so that a crew can take measures conveniently; and the data processing and analyzing module displays and memorizes the data, so that the maritime law enforcement officers can conveniently check and supervise the data.
In the embodiment of the invention, as shown in fig. 1, the ship tail gas pretreatment module comprises a tail gas conveying structure communicated with a tail gas pretreatment device 9, and the tail gas conveying structure is used for conveying tail gas inside a ship chimney 3 communicated with the tail gas pretreatment device 9 to the tail gas pretreatment device 9 so as to adjust the temperature and humidity of the ship tail gas; the tail gas conveying structure comprises a gas suction device for realizing the flowing conveying of the tail gas, and the tail gas conveying of the tail gas conveying structure is completed by utilizing the gas suction device; optimally, the tail gas conveying pipe 8 is arranged on the tail gas pretreatment equipment 9, the air suction equipment is an air suction pump 7, and the air suction pump 7 is arranged on the tail gas conveying pipe 8; the suction pump 7 is communicated with a ship chimney 3 arranged on the ship body 1 through a tail gas collecting pipe 5, and the tail gas collecting pipe 5 is communicated with a ship tail gas outlet 4 on the ship chimney 3; preferably, an emergency quick-closing valve 6 is additionally arranged on the tail gas collecting pipe 5.
In the embodiment of the present invention, as shown in fig. 1, the exhaust gas pretreatment device 9 inputs the ship exhaust gas reaching the detection state into the gas detection module through the gas delivery pipe 10 to be detected.
In the embodiment of the present invention, as shown in fig. 1, the gas detection module includes an internal SO component2And CO2The detection probe of the electrochemical element is used for detection, the audible and visual alarm is used for matching detection of the detection probe, and the ship tail gas exceeding a set threshold value sends out audible and visual alarm; wherein the detection probe contains SO2Detection probe 11 and CO2Detecting probe 16, SO2Detection probe and/or CO2The detection probe is connected to the acousto-optic alarm; the audible and visual alarm is provided with a connection SO2Detecting SO on the probe 112The sound-light alarm 14 of the detection probe is connected with the CO2Detecting CO on the probe 162A sound-light alarm 19 of the detection probe; and, for SO2And CO2The electrochemical element for detection comprises SO2Detecting electrochemical cell 12 and CO2Detection of electrochemical element 17, SO2The electrochemical detection element 12 is mounted in the SO2Inside the inspection probe 11; CO22The detection electrochemical element 17 is mounted on the CO2Inside the inspection probe 16. Preferably, the audible and visual alarm comprises a signal connected to the SO2Detecting SO on the probe 112The sound-light alarm 14 of the detection probe is connected with the CO2Detecting CO on the probe 162Sound and light of detection probeAn alarm 19; wherein the SO2The detecting probe 11 passes through SO2The detection probe acousto-optic alarm transmission line 13 is connected with the SO2Detection probe audible and visual alarm 14, and in SO2The detection probe 11 is provided with SO2A detection probe exhaust gas discharge port 15; the CO is2The probe 16 passes the CO2The detection probe acousto-optic alarm transmission line 18 is connected with CO2Detection probe audible-visual alarm 19, and in CO2The detection probe 16 is provided with CO2The probe exhaust outlet 20 is detected.
Further, the pretreated ship tail gas uniformly enters the SO through the gas conveying pipe 10 to be detected2 Detection probe 11 and CO2SO is carried out in the detection probe 162And CO2Detecting, converting the detection information into an electric signal, and transmitting the electric signal to the data processing and analyzing module; and, using SO to count ship exhaust gas with abnormal values and exceeding a set threshold value2Detection probe audible and visual alarm 14 and CO2The sound-light alarm 19 of the detection probe gives out sound-light alarm.
In the embodiment of the present invention, as shown in fig. 1, the host 24 is connected to the gas detection module, and a data display window is installed on the host 24 for displaying the detection data of the collected gas detection module; the data display window comprises a host computer CO2Detection data display window 25 and host SO2Inspecting the data display window 26 and utilizing the host CO2Detection data display window 25 and host SO2A detection data display window 26 for displaying the processed detection information; optimally, the host 24 of the data processing and analysis module is passed through the SO2Detection data transmission line 21 and CO2The detection data transmission line 22 is sequentially connected with the gas detection module in a matching way; wherein, the host machine 24 is provided with a host machine CO2Detection data display window 25 and host SO2Inspection data display window 26, host CO2Detection data display window 25 and host SO2The inspection data display window 26 is used to display inspection information of the host computer 24 for collection processing. Preferably, the host 24 is provided with a wire inlet 23 and a host wire outlet 27.
In the embodiment of the invention, as shown in the figure1, the inspection data analyzer 30 is connected to the host 24 through the integrated data transmission line 28, and the inspection data analyzer 30 is provided with a detection data analyzer inlet 29 matched with the integrated data transmission line 28; wherein the inspection data analyzer 30 is provided with an analyzer SO2Detection data display window 31 and analyzer CO2A detected data display window 32 and an analyzer sulfur-to-carbon ratio display window 33; and, the inspection data analyzer 30 is mounted with an analyzer operation panel 34, and the inspection data analyzer 30 is mounted on a ship's deck 35.
The invention relates to a sulfur dioxide and carbon dioxide content comparison analyzer for ship tail gas, which comprises a ship tail gas pretreatment module, a gas detection module and a data processing analysis module; the ship tail gas pretreatment module comprises tail gas pretreatment equipment 9, the temperature and the humidity of the ship tail gas are adjusted by the tail gas pretreatment equipment 9, and the ship tail gas is continuously, stably and uniformly input into the gas detection module after reaching a detection state; the gas detection module carries out SO on the ship tail gas which is uniformly input2And CO2Detecting, and transmitting detection information to the data processing and analyzing module; the data processing and analyzing module comprises a host 24 and an inspection data analyzer 30, wherein the host 24 collects and displays detection information, gives out sound-light alarm to ship tail gas exceeding a set threshold value, transmits the detection information to the inspection data analyzer 30, the inspection data analyzer 30 processes the detection information, calculates a sulfur-carbon ratio value, and calculates the sulfur content of the fuel oil by utilizing the relationship between the sulfur content of the fuel oil and the sulfur-carbon ratio of the tail gas; displaying and storing; after the temperature and humidity of the ship tail gas are adjusted by using the tail gas pretreatment equipment 9 on the ship tail gas pretreatment module, SO is carried out on the ship tail gas by using the gas detection module2And CO2The sulfur content of the fuel oil is calculated by utilizing the data processing and analyzing module, the sulfur content of the tail gas of the ship can be effectively and dynamically monitored in real time, so that a shipside can be prompted to practically take various sulfur limiting measures, the emission of atmospheric pollutants of the ship is reduced, the effective implementation of a global sulfur limiting order is guaranteed, and the development of green shipping is promoted; simultaneously, the gas detection module carries out SO on the ship tail gas2And CO2When the detection is carried out, a sound-light alarm is given out after numerical value abnormality occurs and the ship tail gas exceeds a set threshold value, so that a crew can take measures conveniently; and the data processing and analyzing module displays and memorizes the data, so that the maritime law enforcement officers can conveniently check and supervise the data.
While the preferred embodiments of the present invention have been described in detail, the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art.
Claims (9)
1. A comparative analyzer for sulfur dioxide and carbon dioxide content in ship tail gas is characterized in that,
the device comprises a ship tail gas pretreatment module, a gas detection module and a data processing and analyzing module; wherein the content of the first and second substances,
the ship tail gas pretreatment module comprises tail gas pretreatment equipment; adjusting the temperature and humidity of the ship tail gas by using tail gas pretreatment equipment, and continuously, stably and uniformly inputting the ship tail gas into the gas detection module after the ship tail gas reaches a detection state;
the gas detection module carries out SO on the ship tail gas which is uniformly input2And CO2Detecting, and transmitting detection information to the data processing and analyzing module;
the data processing and analyzing module comprises a host and an inspection data analyzer; the host computer collects and displays the detection information, gives out sound-light alarm to the ship tail gas exceeding a set threshold value, transmits the detection information to the inspection data analyzer, and the inspection data analyzer processes the detection information to obtain the sulfur content of the fuel oil, displays and stores the sulfur content.
2. The analyzer of claim 1, wherein the marine exhaust gas pretreatment module comprises an exhaust gas conveying structure communicated with the exhaust gas pretreatment device, and the exhaust gas conveying structure is used for conveying the exhaust gas inside a marine chimney communicated with the exhaust gas pretreatment device to the exhaust gas pretreatment device so as to adjust the temperature and humidity of the marine exhaust gas.
3. The analyzer for comparing the contents of sulfur dioxide and carbon dioxide in marine exhaust according to claim 2, wherein the exhaust transportation structure comprises an air suction device for realizing the flowing transportation of the exhaust, and the exhaust transportation of the exhaust transportation structure is completed by the air suction device.
4. The analyzer of claim 2, wherein the tail gas pretreatment device inputs the ship tail gas in the detection state to the gas detection module through the gas conveying pipe to be detected.
5. The analyzer of claim 1, wherein the gas detection module comprises a sensor for detecting SO in the marine exhaust gas2And CO2The detection probe of the electrochemical element and the audible and visual alarm are matched with the detection probe for detection, and the ship tail gas exceeding a set threshold value gives out audible and visual alarm.
6. The analyzer of claim 5, wherein the probe comprises SO2Detection probe and CO2Detection Probe, SO2Detection probe and/or CO2The detection probe is connected with the acousto-optic alarm.
7. The analyzer as claimed in claim 5, wherein the audible and visual alarm comprises a signal generator connected to the SO2Detecting SO on a probe2The detection probe is an audible and visual alarm and is connected with the CO2Detecting CO on a probe2And a sound-light alarm for the detection probe.
8. The analyzer of claim 1, wherein the main engine is connected to the gas detection module, and a data display window is installed on the main engine for displaying the detection data of the gas detection module.
9. The analyzer of claim 8, wherein the data display window comprises a host CO2Detecting data display window and host SO2Detecting the data display window and using the host CO2Detecting data display window and host SO2The detection data display window is used for displaying the collected detection information.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112763465A (en) * | 2020-12-24 | 2021-05-07 | 交通运输部天津水运工程科学研究所 | Anti-interference sniffing identification method for exceeding sulfur content of marine diesel oil |
| CN112816651A (en) * | 2020-12-31 | 2021-05-18 | 安徽砺剑防务科技有限公司 | Self-suction type detection device for fuel oil sulfur content of unmanned aerial vehicle-mounted ship |
| CN113391034A (en) * | 2021-06-11 | 2021-09-14 | 交通运输部天津水运工程科学研究所 | Ship tail gas sniffing device and method suitable for micro unmanned aerial vehicle |
| CN115372285A (en) * | 2022-10-26 | 2022-11-22 | 杭州泽天春来科技有限公司 | Tail gas analysis device and method |
-
2020
- 2020-04-29 CN CN202010357199.9A patent/CN111505085A/en not_active Withdrawn
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112763465A (en) * | 2020-12-24 | 2021-05-07 | 交通运输部天津水运工程科学研究所 | Anti-interference sniffing identification method for exceeding sulfur content of marine diesel oil |
| CN112816651A (en) * | 2020-12-31 | 2021-05-18 | 安徽砺剑防务科技有限公司 | Self-suction type detection device for fuel oil sulfur content of unmanned aerial vehicle-mounted ship |
| CN113391034A (en) * | 2021-06-11 | 2021-09-14 | 交通运输部天津水运工程科学研究所 | Ship tail gas sniffing device and method suitable for micro unmanned aerial vehicle |
| CN115372285A (en) * | 2022-10-26 | 2022-11-22 | 杭州泽天春来科技有限公司 | Tail gas analysis device and method |
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Application publication date: 20200807 |