[go: up one dir, main page]

CN112816651A - Self-suction type detection device for fuel oil sulfur content of unmanned aerial vehicle-mounted ship - Google Patents

Self-suction type detection device for fuel oil sulfur content of unmanned aerial vehicle-mounted ship Download PDF

Info

Publication number
CN112816651A
CN112816651A CN202011638612.5A CN202011638612A CN112816651A CN 112816651 A CN112816651 A CN 112816651A CN 202011638612 A CN202011638612 A CN 202011638612A CN 112816651 A CN112816651 A CN 112816651A
Authority
CN
China
Prior art keywords
fuel
gas
fuel oil
self
sulfur content
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202011638612.5A
Other languages
Chinese (zh)
Inventor
王懋
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Anhui Lijian Defense Technology Co ltd
Original Assignee
Anhui Lijian Defense Technology Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Anhui Lijian Defense Technology Co ltd filed Critical Anhui Lijian Defense Technology Co ltd
Priority to CN202011638612.5A priority Critical patent/CN112816651A/en
Publication of CN112816651A publication Critical patent/CN112816651A/en
Pending legal-status Critical Current

Links

Images

Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/22Fuels; Explosives

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Medicinal Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Sampling And Sample Adjustment (AREA)

Abstract

The invention relates to the technical field of ship fuel oil detection, and particularly discloses an unmanned aerial vehicle-mounted ship fuel oil sulfur content self-suction type detection device, which comprises a data processing center, a gas collection unit and a fuel oil data acquisition unit, wherein the whole device is fixed with an unmanned aerial vehicle, and the data processing center is connected with an unmanned aerial vehicle operation control system; the gas collection unit is provided with a gas analysis unit, and the fuel data acquisition unit is provided with a fuel data analysis unit; the unmanned aerial vehicle operation control system is provided with a positioning unit which is butted with an oil testing port of a ship oil tank, a sampling tube is arranged on the device, and the sampling tube is inserted into the oil testing port to absorb fuel oil for analysis; the device directly obtains and analyzes fuel oil, combines the fuel oil with the gas after combustion and analyzes the gas, and the two modes mutually prove as the basis of sulfur content detection, thereby ensuring the accuracy of the detection result; the device is carried on unmanned aerial vehicle, reduces the work load of manual work, and data automatic acquisition, automatic transmission are high-efficient convenient.

Description

Self-suction type detection device for fuel oil sulfur content of unmanned aerial vehicle-mounted ship
Technical Field
The invention relates to the technical field of ship fuel oil detection, in particular to an unmanned airborne ship fuel oil sulfur content self-suction type detection device.
Background
Ship exhaust gas atmospheric pollution, especially in ports, straits and some areas with dense routes and large ship flow, has become a main pollution source. Sulfur dioxide is an important pollutant in ship exhaust flue gas and is mainly generated by burning sulfur-containing substances in marine fuel oil. The international maritime organization strictly limits the sulfur content of the marine fuel oil in order to limit the emission of sulfur dioxide of ships.
The oil content of the existing ship fuel is mostly detected by a worker who holds an instrument to go to the ship, so that the efficiency is low, the workload of the worker is large, and the detection is inconvenient.
Disclosure of Invention
The invention aims to provide a self-suction type detection device for fuel oil sulfur content of an unmanned airborne ship, which aims to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: a self-suction type detection device for fuel oil sulfur content of an unmanned aerial vehicle-mounted ship comprises a data processing center, a gas collecting unit and a fuel oil data collecting unit, wherein the whole device is fixed with an unmanned aerial vehicle, and the data processing center is connected with an unmanned aerial vehicle operation control system; the gas collection unit is provided with a gas analysis unit, and the fuel data acquisition unit is provided with a fuel data analysis unit; the unmanned aerial vehicle operation control system is provided with a positioning unit which is butted with an oil testing port of a ship oil tank, a sampling tube is arranged on the device, and the sampling tube is inserted into the oil testing port to absorb fuel oil for analysis; and the data is transmitted back to the data processing center for storage and storage, and is transferred and transmitted to the remote terminal by the unmanned aerial vehicle operation control system.
Preferably, the fuel data acquisition unit is provided with a self-priming pump, and the water suction end of the self-priming pump is connected with the sampling tube; the sampling pipe is provided with an electric valve, and the electric valve is electrically connected with the fuel data acquisition unit.
Preferably, the fuel data analysis unit is a fuel sulfur analyzer, acquires fuel in the sampling pipe for analysis, and acquires analysis data to feed back the analysis data to the data processing center.
Preferably, a liquid level sensor is arranged in the ship oil tank and connected with the data processing center; and when the oil content of the ship oil tank is 50% -80%, detecting the fuel oil.
Preferably, the gas collection unit is a gas collection bottle, and the gas analysis unit is a carbon dioxide sensor and a sulfur dioxide sensor which are respectively arranged inside the gas collection bottle.
Preferably, the air inlet end of the air collecting bottle is connected to a smoke outlet chimney of the ship through a hose, and the air outlet end of the air collecting bottle is provided with a one-way valve; the sampling time of the gas collecting bottle is not less than 20 minutes.
Preferably, carbon dioxide sensor and sulfur dioxide sensor set up respectively and are no less than three groups, in the sampling process, continuously detect carbon dioxide concentration and sulfur dioxide concentration in the gas collecting bottle, after carbon dioxide concentration and sulfur dioxide concentration change tend to stability, take the average value as the result.
Preferably, the gas analysis unit calculates the fuel oil sulfur content according to the carbon dioxide concentration and the sulfur dioxide concentration in the gas collection bottle, and the fuel oil sulfur content is in direct proportion to the product of the carbon dioxide concentration and the sulfur dioxide concentration.
Preferably, the data processing center receives and compares the sulfur content of the fuel fed back by the fuel data analysis unit and the gas analysis unit to ensure the accuracy of the result.
Compared with the prior art, the invention has the beneficial effects that: the device provided by the invention directly obtains and analyzes the fuel oil, combines the fuel oil and the gas after combustion for analysis, and mutually verifies the two modes as the basis of sulfur content detection, thereby ensuring the accuracy of the detection result; the device is carried on unmanned aerial vehicle, reduces the work load of manual work, and data automatic acquisition, automatic transmission are high-efficient convenient.
Drawings
FIG. 1 is a schematic structural view of the present invention;
reference numbers in the figures: 1. a data processing center; 2. a gas collection unit; 3. a fuel data acquisition unit; 4. a fuel data analysis unit; 5. a gas analysis unit; 6. an unmanned aerial vehicle operation control system; 7. a remote terminal; 8. a liquid level sensor; 9. a self-priming pump; 10. an electrically operated valve; 11. a positioning unit.
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.
Referring to fig. 1, the present invention provides a technical solution: a self-suction type detection device for fuel oil sulfur content of an unmanned airborne ship comprises a data processing center 1, a gas collection unit 2 and a fuel oil data acquisition unit 3, wherein the whole device is fixed with an unmanned aerial vehicle, and the data processing center 1 is connected with an unmanned aerial vehicle operation control system 6; the gas collection unit 2 is provided with a gas analysis unit 5, and the fuel data acquisition unit 3 is provided with a fuel data analysis unit 4; the unmanned aerial vehicle operation control system 6 is provided with a positioning unit 11 which is butted with an oil testing port of a ship oil tank, a sampling tube is arranged on the device, and the sampling tube is inserted into the oil testing port to absorb fuel oil for analysis; the data is transmitted back to the data processing center 1 for storage and storage, and is transferred to the remote terminal 7 by the unmanned aerial vehicle operation control system 6.
Further, the fuel data acquisition unit 3 is provided with a self-priming pump 9, and the water suction end of the self-priming pump 9 is connected with the sampling tube; the sampling pipe is provided with an electric valve 10, and the electric valve 10 is electrically connected with the fuel data acquisition unit 3.
Further, the fuel data analysis unit 4 is a fuel sulfur analyzer, acquires fuel in a sampling tube for analysis, and acquires analysis data to feed back the analysis data to the data processing center 1.
Further, a liquid level sensor 8 is arranged in the ship oil tank, and the liquid level sensor 8 is connected with the data processing center 1; and when the oil content of the ship oil tank is 50% -80%, detecting the fuel oil.
Further, the gas collection unit 2 is a gas collection bottle, and the gas analysis unit 5 is a carbon dioxide sensor and a sulfur dioxide sensor, which are respectively arranged inside the gas collection bottle.
Further, the air inlet end of the air collecting bottle is connected to a smoke outlet chimney of the ship through a hose, and the air outlet end of the air collecting bottle is provided with a one-way valve; the sampling time of the gas collecting bottle is not less than 20 minutes.
Furthermore, carbon dioxide sensor and sulfur dioxide sensor set up respectively and are no less than three groups, in the sampling process, continuously detect carbon dioxide concentration and sulfur dioxide concentration in the gas collecting bottle, after carbon dioxide concentration and sulfur dioxide concentration change tend to be stable, take the average value as the result.
Further, the gas analysis unit 5 calculates the fuel oil sulfur content according to the carbon dioxide concentration and the sulfur dioxide concentration in the gas collection bottle, and the fuel oil sulfur content is in a direct proportion relation with the product of the carbon dioxide concentration and the sulfur dioxide concentration.
Further, the data processing center 1 receives the sulfur content of the fuel fed back by the fuel data analysis unit 4 and the gas analysis unit 5, and compares the sulfur content with the sulfur content to ensure the accuracy of the result.
Any embodiment of the present invention is described below with respect to FIG. 1 for further illustration:
the gas collection unit 2 and the fuel data acquisition unit 3 are connected with the data processing center 1, the data processing center 1 is further connected with an unmanned aerial vehicle operation control system 6, and the remote terminal 7 is connected with the unmanned aerial vehicle operation control system 6.
Wherein, the gas collecting unit 2 is provided with a gas analyzing unit 5 in a matching way, and the specific detection method comprises the following steps: the gas collection unit 2 is a gas collection bottle, and the gas analysis unit 5 is a carbon dioxide sensor and a sulfur dioxide sensor which are respectively arranged in the gas collection bottle; one end of the gas collecting bottle is connected with a smoke outlet chimney of the ship through a hose, and the other end of the gas collecting bottle is provided with a one-way valve for exhausting; the sampling time is not less than 20 minutes to ensure that the chimney is completely filled with combustion waste gas, the proportion of gas in the original bottle is reduced, and the accuracy of the result is ensured. Carbon dioxide sensor and sulfur dioxide sensor set up respectively and are no less than three groups, and in the testing process, along with gaseous entering, carbon dioxide concentration, sulfur dioxide concentration constantly rise, after its proportion tends to stable, gaseous collection finishes promptly, takes the average value of sensor testing result as the result. The gas analysis unit 5 calculates the fuel oil sulfur content according to the carbon dioxide concentration and the sulfur dioxide concentration in the gas collection bottle, and the fuel oil sulfur content is in direct proportion to the product of the carbon dioxide concentration and the sulfur dioxide concentration.
The fuel data acquisition unit 3 is provided with a fuel data analysis unit 4 in a matching way, and the specific process is as follows: the fuel data analysis unit 4 is the fuel sulfur analyzer, is provided with the sampling tube on the device, and the sampling tube inserts and absorbs the fuel in the oil test mouth and passes through: the fuel data analysis unit 4 performs analysis. Supporting locating element 11 that sets up on unmanned aerial vehicle, locating element 11 discerns oil test mouth position, chimney position to acquire fuel or waste gas. An electric valve 10 is arranged on the sampling tube, the fuel data acquisition unit 3 is provided with a self-sucking pump 9, and the self-sucking pump 9 provides power for the sampling tube to suck fuel; in the oil tank of boats and ships, still detect the oil mass through setting up level sensor 8, when the oil mass is in 50% ~ 80%, detect when sufficient and even, the result is more accurate, credible.
The data processing center 1 receives the fuel sulfur content fed back by the fuel data analysis unit 4 and the gas analysis unit 5, and compares the fuel sulfur content with the gas content to ensure the accuracy of the result; the results are fed back to the remote terminal 7 for viewing by the user of the terminal.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (9)

1. The utility model provides an unmanned aerial vehicle carries boats and ships fuel sulfur content from inhaling formula detection device which characterized in that: the device comprises a data processing center (1), a gas collecting unit (2) and a fuel data collecting unit (3), wherein the whole device is fixed with an unmanned aerial vehicle, and the data processing center (1) is connected with an unmanned aerial vehicle operation control system (6); the gas collection unit (2) is provided with a gas analysis unit (5), and the fuel data acquisition unit (3) is provided with a fuel data analysis unit (4); the unmanned aerial vehicle operation control system (6) is provided with a positioning unit (11) which is butted with an oil testing port of a ship oil tank, a sampling tube is arranged on the device, and the sampling tube is inserted into the oil testing port to absorb fuel oil for analysis; the data is transmitted back to the data processing center (1) for storage and storage, and is transferred to the remote terminal (7) by the unmanned aerial vehicle operation control system (6).
2. The self-suction type detection device for the sulfur content in the fuel oil of the unmanned airborne ship according to claim 1, characterized in that: the fuel data acquisition unit (3) is provided with a self-priming pump (9), and the water suction end of the self-priming pump (9) is connected with the sampling tube; an electric valve (10) is arranged on the sampling pipe pipeline, and the electric valve (10) is electrically connected with the fuel data acquisition unit (3).
3. The self-suction type detection device for the sulfur content in the fuel oil of the unmanned airborne ship according to claim 1, characterized in that: the fuel data analysis unit (4) is a fuel sulfur analyzer, acquires fuel in a sampling tube for analysis, and acquires analysis data to feed back the analysis data to the data processing center (1).
4. The self-suction type detection device for the sulfur content in the fuel oil of the unmanned airborne ship according to claim 1, characterized in that: a liquid level sensor (8) is arranged in the ship oil tank, and the liquid level sensor (8) is connected with the data processing center (1); and when the oil content of the ship oil tank is 50% -80%, detecting the fuel oil.
5. The self-suction type detection device for the sulfur content in the fuel oil of the unmanned airborne ship according to claim 1, characterized in that: the gas collection unit (2) is a gas collection bottle, and the gas analysis unit (5) is a carbon dioxide sensor and a sulfur dioxide sensor which are respectively arranged in the gas collection bottle.
6. The self-suction type detection device for the sulfur content in the fuel oil of the unmanned airborne ship according to claim 5, wherein the self-suction type detection device comprises: the gas inlet end of the gas collecting bottle is connected to a smoke outlet chimney of the ship through a hose, and the gas outlet end of the gas collecting bottle is provided with a one-way valve; the sampling time of the gas collecting bottle is not less than 20 minutes.
7. The self-suction type detection device for the sulfur content in the fuel oil of the unmanned airborne ship according to claim 5, wherein the self-suction type detection device comprises: the carbon dioxide sensor and the sulfur dioxide sensor are respectively provided with at least three groups, so that the concentration of carbon dioxide and the concentration of sulfur dioxide in the gas collecting bottle can be continuously detected in the sampling process, and when the change of the concentration of carbon dioxide and the concentration of sulfur dioxide tends to be stable, the average value is taken as a result.
8. The self-suction type detection device for the sulfur content in the fuel oil of the unmanned airborne ship according to claim 5, wherein the self-suction type detection device comprises: the gas analysis unit (5) calculates the sulfur content of the fuel oil according to the concentration of carbon dioxide and the concentration of sulfur dioxide in the gas collection bottle, and the sulfur content of the fuel oil is in direct proportion to the product of the concentration of carbon dioxide and the concentration of sulfur dioxide.
9. The self-suction type detection device for the sulfur content in the fuel oil of the unmanned airborne ship according to claim 1, characterized in that: and the data processing center (1) receives the fuel sulfur content fed back by the fuel data analysis unit (4) and the gas analysis unit (5), and compares the fuel sulfur content with the gas content to ensure the accuracy of the result.
CN202011638612.5A 2020-12-31 2020-12-31 Self-suction type detection device for fuel oil sulfur content of unmanned aerial vehicle-mounted ship Pending CN112816651A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202011638612.5A CN112816651A (en) 2020-12-31 2020-12-31 Self-suction type detection device for fuel oil sulfur content of unmanned aerial vehicle-mounted ship

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202011638612.5A CN112816651A (en) 2020-12-31 2020-12-31 Self-suction type detection device for fuel oil sulfur content of unmanned aerial vehicle-mounted ship

Publications (1)

Publication Number Publication Date
CN112816651A true CN112816651A (en) 2021-05-18

Family

ID=75857644

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202011638612.5A Pending CN112816651A (en) 2020-12-31 2020-12-31 Self-suction type detection device for fuel oil sulfur content of unmanned aerial vehicle-mounted ship

Country Status (1)

Country Link
CN (1) CN112816651A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104155297A (en) * 2014-08-11 2014-11-19 江苏恒创软件有限公司 Unmanned plane-based industrial water pollution source detection method
CN106290804A (en) * 2016-08-02 2017-01-04 青岛市光电工程技术研究院 A kind of marine fuel oil sulfur content detection method, device and a kind of equipment
US20170003684A1 (en) * 2014-01-28 2017-01-05 EXPLICIT ApS A method and an unmanned aerial vehicle for determining emissions of a vessel
CN207586214U (en) * 2017-12-29 2018-07-06 山东英楷隆科技发展有限公司 Sensing chamber's thermostatic type fume tester
CN108490124A (en) * 2018-03-17 2018-09-04 广东容祺智能科技有限公司 A kind of gas detecting system and method based on unmanned plane
CN109901615A (en) * 2019-03-20 2019-06-18 深圳智人环保科技有限公司 A kind of ship discharge detection method and system based on flying platform
CN110568163A (en) * 2019-10-02 2019-12-13 上海安馨信息科技有限公司 High-precision ship fuel oil sulfur content calculation method based on ship tail gas monitoring data
CN209858529U (en) * 2019-04-18 2019-12-27 广东敦诚环保科技有限公司 VOCs pollution sources intermediate process monitoring device
CN111505085A (en) * 2020-04-29 2020-08-07 贾如存 Sulfur dioxide and carbon dioxide content contrastive analyzer for ship tail gas
CN211978450U (en) * 2020-04-17 2020-11-20 上海搭康环境科技有限公司 An integrated flue gas sampling and humidity detection device
CN111982580A (en) * 2019-05-21 2020-11-24 中国石油天然气股份有限公司 Unmanned aerial vehicle automatic oil extraction sampling system and method

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20170003684A1 (en) * 2014-01-28 2017-01-05 EXPLICIT ApS A method and an unmanned aerial vehicle for determining emissions of a vessel
CN104155297A (en) * 2014-08-11 2014-11-19 江苏恒创软件有限公司 Unmanned plane-based industrial water pollution source detection method
CN106290804A (en) * 2016-08-02 2017-01-04 青岛市光电工程技术研究院 A kind of marine fuel oil sulfur content detection method, device and a kind of equipment
CN207586214U (en) * 2017-12-29 2018-07-06 山东英楷隆科技发展有限公司 Sensing chamber's thermostatic type fume tester
CN108490124A (en) * 2018-03-17 2018-09-04 广东容祺智能科技有限公司 A kind of gas detecting system and method based on unmanned plane
CN109901615A (en) * 2019-03-20 2019-06-18 深圳智人环保科技有限公司 A kind of ship discharge detection method and system based on flying platform
CN209858529U (en) * 2019-04-18 2019-12-27 广东敦诚环保科技有限公司 VOCs pollution sources intermediate process monitoring device
CN111982580A (en) * 2019-05-21 2020-11-24 中国石油天然气股份有限公司 Unmanned aerial vehicle automatic oil extraction sampling system and method
CN110568163A (en) * 2019-10-02 2019-12-13 上海安馨信息科技有限公司 High-precision ship fuel oil sulfur content calculation method based on ship tail gas monitoring data
CN211978450U (en) * 2020-04-17 2020-11-20 上海搭康环境科技有限公司 An integrated flue gas sampling and humidity detection device
CN111505085A (en) * 2020-04-29 2020-08-07 贾如存 Sulfur dioxide and carbon dioxide content contrastive analyzer for ship tail gas

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
史华杰等: "基于无人机的船舶尾气检测系统设计", 《自动化与仪表》 *
徐舜吉等: "基于无人机的船舶尾气移动监测平台研究", 《世界海运》 *
钟蕊等: "基于气体传感器的船舶燃油含硫量检测系统", 《传感技术学报》 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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

Similar Documents

Publication Publication Date Title
CN104457852A (en) On-line monitoring system for greenhouse gas emission of fixed combustion source
CN106290804A (en) A kind of marine fuel oil sulfur content detection method, device and a kind of equipment
CN105277397A (en) Vehicle tail gas collection device as well as vehicle tail gas detection system and method
CN201662569U (en) Calibration device for nitrogen oxide detection sensor
CN112816651A (en) Self-suction type detection device for fuel oil sulfur content of unmanned aerial vehicle-mounted ship
CN201795990U (en) Air channel system for measuring smoke intensity of tail gas of diesel vehicle
CN110658141A (en) Formaldehyde emission online measurement method and system suitable for multiple pollution sources
CN211740785U (en) Automatic integrated gas detection system
CN204241032U (en) A kind of stationary combustion source greenhouse gas emission on-line monitoring system
CN206161391U (en) Smoke sampling gun
CN212621763U (en) Boats and ships plume SO based on unmanned aerial vehicle2Discharge collecting and detecting device
CN205175755U (en) Vehicle exhaust collection device and vehicle exhaust detecting system
CN205484056U (en) Nitrogen oxide analysis appearance
CN205001038U (en) Diesel mine locomotive discharges monitoring system in real time
CN207992051U (en) Portable infrared gas analyzer
CN113281111B (en) Safe explosion-proof detection device and system
CN206057063U (en) A kind of ship flue gas monitoring system Flue Gas Pretreatment Device
KR20140127528A (en) Sampling equipment for collecting particulate matter emitted from marine engines
CN209624559U (en) "Three gases in one" asphalt mixture mixing gas pollutant detection system
CN215005369U (en) Safe explosion-proof detection device and system
CN117073159A (en) Harmful gas purification system and method in underwater closed cabin
CN211577106U (en) Smoke and dust flue gas detection device
CN114964934A (en) Device and method for rapidly determining oxygen utilization rate of aeration tank by using gas detector
CN223362039U (en) High-precision portable carbon emission measuring instrument
CN207300671U (en) A kind of vehicle exhaust environmental protection harvester

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
RJ01 Rejection of invention patent application after publication

Application publication date: 20210518

RJ01 Rejection of invention patent application after publication